remove cooperate

Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>

src/ast/rewriter/bit_blaster/bit_blaster_rewriter.cpp

@@ -142,7 +142,6 @@ struct blaster_rewriter_cfg : public default_rewriter_cfg {
     bool rewrite_patterns() const { return true; }
 
     bool max_steps_exceeded(unsigned num_steps) const {
-        cooperate("bit blaster");
         if (memory::get_allocation_size() > m_max_memory)
             throw rewriter_exception(Z3_MAX_MEMORY_MSG);
         return num_steps > m_max_steps;

src/ast/rewriter/bit_blaster/bit_blaster_tpl_def.h

@@ -19,7 +19,6 @@ Revision History:
 #include "ast/rewriter/bit_blaster/bit_blaster_tpl.h"
 #include "util/rational.h"
 #include "ast/ast_pp.h"
-#include "util/cooperate.h"
 #include "util/common_msgs.h"
 #include "ast/rewriter/rewriter_types.h"
 
@@ -30,7 +29,6 @@ void bit_blaster_tpl<Cfg>::checkpoint() {
         throw rewriter_exception(Z3_MAX_MEMORY_MSG);
     if (m().canceled())
         throw rewriter_exception(m().limit().get_cancel_msg());
-    cooperate("bit-blaster");
 }
 
 /**

src/ast/rewriter/expr_replacer.cpp

@@ -19,7 +19,6 @@ Notes:
 #include "ast/rewriter/expr_replacer.h"
 #include "ast/rewriter/rewriter_def.h"
 #include "ast/rewriter/th_rewriter.h"
-#include "util/cooperate.h"
 
 void expr_replacer::operator()(expr * t, expr_ref & result, proof_ref & result_pr) {
     expr_dependency_ref result_dep(m());
@@ -74,7 +73,6 @@ struct default_expr_replacer_cfg : public default_rewriter_cfg  {
     }
 
     bool max_steps_exceeded(unsigned num_steps) const { 
-        cooperate("simplifier");
         return false;
     }
 };

src/ast/rewriter/th_rewriter.cpp

@@ -16,7 +16,6 @@ Author:
 Notes:
 
 --*/
-#include "util/cooperate.h"
 #include "ast/rewriter/th_rewriter.h"
 #include "ast/rewriter/rewriter_params.hpp"
 #include "ast/rewriter/bool_rewriter.h"
@@ -108,7 +107,6 @@ struct th_rewriter_cfg : public default_rewriter_cfg {
     bool cache_all_results() const { return m_cache_all; }
 
     bool max_steps_exceeded(unsigned num_steps) const {
-        cooperate("simplifier");
         if (memory::get_allocation_size() > m_max_memory)
             throw rewriter_exception(Z3_MAX_MEMORY_MSG);
         return num_steps > m_max_steps;