/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=LOWLEXORDER --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-sets/test_mutex_double_lock.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 21:38:26,433 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 21:38:26,437 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 21:38:26,486 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 21:38:26,487 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 21:38:26,500 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 21:38:26,502 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 21:38:26,506 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 21:38:26,509 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 21:38:26,513 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 21:38:26,514 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 21:38:26,515 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 21:38:26,516 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 21:38:26,519 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 21:38:26,522 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 21:38:26,524 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 21:38:26,525 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 21:38:26,526 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 21:38:26,532 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 21:38:26,540 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 21:38:26,543 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 21:38:26,545 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 21:38:26,546 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 21:38:26,547 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 21:38:26,551 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 21:38:26,551 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 21:38:26,551 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 21:38:26,554 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 21:38:26,555 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 21:38:26,557 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 21:38:26,558 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 21:38:26,559 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 21:38:26,559 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 21:38:26,560 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 21:38:26,562 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 21:38:26,562 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 21:38:26,563 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 21:38:26,563 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 21:38:26,563 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 21:38:26,565 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 21:38:26,566 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 21:38:26,567 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-24 21:38:26,616 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 21:38:26,617 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 21:38:26,619 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 21:38:26,619 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 21:38:26,619 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 21:38:26,620 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 21:38:26,620 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 21:38:26,620 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 21:38:26,620 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 21:38:26,620 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 21:38:26,621 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 21:38:26,622 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 21:38:26,622 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 21:38:26,622 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 21:38:26,623 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 21:38:26,623 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 21:38:26,623 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 21:38:26,623 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 21:38:26,623 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 21:38:26,624 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 21:38:26,624 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 21:38:26,624 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 21:38:26,624 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 21:38:26,624 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 21:38:26,625 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 21:38:26,625 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 21:38:26,625 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 21:38:26,625 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 21:38:26,625 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 21:38:26,626 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=LOWLEXORDER;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=LOWLEXORDER;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=LOWLEXORDER;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=LOWLEXORDER;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=LOWLEXORDER;log-additional-information=true; [2020-09-24 21:38:27,076 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 21:38:27,103 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 21:38:27,110 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 21:38:27,112 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 21:38:27,113 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 21:38:27,114 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-sets/test_mutex_double_lock.i [2020-09-24 21:38:27,205 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a42819289/2b5650bece6b405e854838acd7c85149/FLAGd26c95e56 [2020-09-24 21:38:27,849 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 21:38:27,850 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-sets/test_mutex_double_lock.i [2020-09-24 21:38:27,876 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a42819289/2b5650bece6b405e854838acd7c85149/FLAGd26c95e56 [2020-09-24 21:38:28,119 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a42819289/2b5650bece6b405e854838acd7c85149 [2020-09-24 21:38:28,132 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 21:38:28,139 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 21:38:28,142 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 21:38:28,143 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 21:38:28,147 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 21:38:28,148 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 09:38:28" (1/1) ... [2020-09-24 21:38:28,154 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@698c9706 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:38:28, skipping insertion in model container [2020-09-24 21:38:28,154 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 09:38:28" (1/1) ... [2020-09-24 21:38:28,164 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 21:38:28,218 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 21:38:28,807 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 21:38:28,819 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 21:38:28,879 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 21:38:28,951 INFO L208 MainTranslator]: Completed translation [2020-09-24 21:38:28,952 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:38:28 WrapperNode [2020-09-24 21:38:28,952 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 21:38:28,953 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 21:38:28,953 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 21:38:28,953 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 21:38:28,972 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:38:28" (1/1) ... [2020-09-24 21:38:28,973 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:38:28" (1/1) ... [2020-09-24 21:38:28,995 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:38:28" (1/1) ... [2020-09-24 21:38:28,996 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:38:28" (1/1) ... [2020-09-24 21:38:29,039 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:38:28" (1/1) ... [2020-09-24 21:38:29,046 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:38:28" (1/1) ... [2020-09-24 21:38:29,051 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:38:28" (1/1) ... [2020-09-24 21:38:29,059 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 21:38:29,060 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 21:38:29,060 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 21:38:29,060 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 21:38:29,063 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:38:28" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 21:38:29,139 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 21:38:29,139 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 21:38:29,140 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-09-24 21:38:29,140 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-09-24 21:38:29,140 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-24 21:38:29,140 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-09-24 21:38:29,140 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_successful_malloc [2020-09-24 21:38:29,141 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2020-09-24 21:38:29,141 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2020-09-24 21:38:29,141 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2020-09-24 21:38:29,141 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2020-09-24 21:38:29,141 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2020-09-24 21:38:29,141 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2020-09-24 21:38:29,142 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_empty [2020-09-24 21:38:29,142 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_set [2020-09-24 21:38:29,142 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_add [2020-09-24 21:38:29,142 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_del [2020-09-24 21:38:29,143 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_in_set [2020-09-24 21:38:29,143 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_empty [2020-09-24 21:38:29,143 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-09-24 21:38:29,143 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2020-09-24 21:38:29,143 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2020-09-24 21:38:29,144 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-09-24 21:38:29,144 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2020-09-24 21:38:29,144 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 21:38:29,144 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-09-24 21:38:29,144 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-09-24 21:38:29,144 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-09-24 21:38:29,145 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-09-24 21:38:29,145 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-09-24 21:38:29,145 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-09-24 21:38:29,145 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-09-24 21:38:29,145 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-09-24 21:38:29,145 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-09-24 21:38:29,146 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-09-24 21:38:29,146 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-09-24 21:38:29,146 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-09-24 21:38:29,146 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-09-24 21:38:29,146 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-09-24 21:38:29,146 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-09-24 21:38:29,147 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-09-24 21:38:29,147 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-09-24 21:38:29,147 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-09-24 21:38:29,147 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-09-24 21:38:29,147 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-09-24 21:38:29,147 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-09-24 21:38:29,148 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-09-24 21:38:29,148 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-09-24 21:38:29,148 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-09-24 21:38:29,148 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-09-24 21:38:29,148 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-09-24 21:38:29,148 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-09-24 21:38:29,149 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-09-24 21:38:29,149 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-09-24 21:38:29,149 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-09-24 21:38:29,149 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-09-24 21:38:29,149 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-09-24 21:38:29,149 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-09-24 21:38:29,150 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-09-24 21:38:29,150 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-09-24 21:38:29,150 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-09-24 21:38:29,150 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-09-24 21:38:29,150 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-09-24 21:38:29,150 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-09-24 21:38:29,150 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-09-24 21:38:29,151 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-09-24 21:38:29,151 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-09-24 21:38:29,151 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-09-24 21:38:29,151 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-09-24 21:38:29,151 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-09-24 21:38:29,151 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-09-24 21:38:29,152 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-09-24 21:38:29,152 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-09-24 21:38:29,152 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-09-24 21:38:29,152 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-09-24 21:38:29,152 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-09-24 21:38:29,152 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-09-24 21:38:29,153 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 21:38:29,153 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-09-24 21:38:29,153 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-09-24 21:38:29,153 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 21:38:29,153 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-09-24 21:38:29,153 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-09-24 21:38:29,154 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-09-24 21:38:29,154 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-09-24 21:38:29,154 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-24 21:38:29,154 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-09-24 21:38:29,154 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-09-24 21:38:29,154 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-09-24 21:38:29,154 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-09-24 21:38:29,155 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-09-24 21:38:29,155 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-09-24 21:38:29,155 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-09-24 21:38:29,155 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-09-24 21:38:29,155 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-09-24 21:38:29,155 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-09-24 21:38:29,156 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-09-24 21:38:29,156 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-09-24 21:38:29,156 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-09-24 21:38:29,156 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-09-24 21:38:29,156 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-09-24 21:38:29,156 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-09-24 21:38:29,156 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-09-24 21:38:29,157 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-09-24 21:38:29,157 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-09-24 21:38:29,157 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-09-24 21:38:29,157 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-09-24 21:38:29,157 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-09-24 21:38:29,157 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-09-24 21:38:29,158 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-09-24 21:38:29,158 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-09-24 21:38:29,158 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-09-24 21:38:29,158 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-09-24 21:38:29,158 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-09-24 21:38:29,158 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-09-24 21:38:29,158 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-09-24 21:38:29,159 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-09-24 21:38:29,159 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-09-24 21:38:29,159 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-09-24 21:38:29,159 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-09-24 21:38:29,159 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-09-24 21:38:29,160 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-09-24 21:38:29,160 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-09-24 21:38:29,160 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-09-24 21:38:29,160 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-09-24 21:38:29,160 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-09-24 21:38:29,160 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-09-24 21:38:29,161 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 21:38:29,161 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-24 21:38:29,161 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 21:38:29,161 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-09-24 21:38:29,161 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 21:38:29,161 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_successful_malloc [2020-09-24 21:38:29,162 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2020-09-24 21:38:29,162 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 21:38:29,162 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2020-09-24 21:38:29,162 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2020-09-24 21:38:29,162 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2020-09-24 21:38:29,162 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 21:38:29,163 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2020-09-24 21:38:29,163 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2020-09-24 21:38:29,163 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_empty [2020-09-24 21:38:29,163 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_set [2020-09-24 21:38:29,163 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_add [2020-09-24 21:38:29,163 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_del [2020-09-24 21:38:29,164 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_in_set [2020-09-24 21:38:29,164 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_empty [2020-09-24 21:38:29,164 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 21:38:29,164 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-09-24 21:38:29,164 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2020-09-24 21:38:29,164 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2020-09-24 21:38:29,165 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-09-24 21:38:29,165 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2020-09-24 21:38:29,165 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 21:38:29,165 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 21:38:29,165 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 21:38:29,165 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-09-24 21:38:29,165 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 21:38:29,970 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 21:38:29,971 INFO L295 CfgBuilder]: Removed 2 assume(true) statements. [2020-09-24 21:38:29,977 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 09:38:29 BoogieIcfgContainer [2020-09-24 21:38:29,977 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 21:38:29,979 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 21:38:29,979 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 21:38:29,983 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 21:38:29,984 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 09:38:28" (1/3) ... [2020-09-24 21:38:29,985 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53838141 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 09:38:29, skipping insertion in model container [2020-09-24 21:38:29,985 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:38:28" (2/3) ... [2020-09-24 21:38:29,985 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53838141 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 09:38:29, skipping insertion in model container [2020-09-24 21:38:29,985 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 09:38:29" (3/3) ... [2020-09-24 21:38:29,988 INFO L109 eAbstractionObserver]: Analyzing ICFG test_mutex_double_lock.i [2020-09-24 21:38:30,021 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 21:38:30,032 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-09-24 21:38:30,052 INFO L251 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-09-24 21:38:30,082 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 21:38:30,082 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 21:38:30,082 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 21:38:30,082 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 21:38:30,082 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 21:38:30,082 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 21:38:30,083 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 21:38:30,083 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 21:38:30,109 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states. [2020-09-24 21:38:30,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-09-24 21:38:30,118 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:38:30,119 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:38:30,120 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:38:30,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:38:30,128 INFO L82 PathProgramCache]: Analyzing trace with hash 899835465, now seen corresponding path program 1 times [2020-09-24 21:38:30,140 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:38:30,140 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1749754222] [2020-09-24 21:38:30,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:38:30,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:38:30,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:38:30,754 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:38:30,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-09-24 21:38:30,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:38:30,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 396 [2020-09-24 21:38:30,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:38:30,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 21:38:30,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 76 [2020-09-24 21:38:30,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 21:38:30,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-24 21:38:30,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:38:30,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:38:30,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:38:30,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:38:30,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 21:38:30,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:38:30,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-24 21:38:30,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:38:30,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:38:30,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:38:30,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:38:30,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:38:30,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 21:38:30,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:38:30,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:38:30,909 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:38:30,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:38:30,910 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:38:30,910 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 21:38:30,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:38:30,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:38:30,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:38:30,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:38:30,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:38:30,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-24 21:38:30,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:38:30,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:38:30,951 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:38:30,952 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 21:38:30,952 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:38:30,952 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-24 21:38:30,952 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:38:30,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:38:30,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:38:30,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:38:30,953 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:38:30,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 21:38:30,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:38:30,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:38:30,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:38:30,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 21:38:30,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:38:30,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 21:38:30,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:38:30,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:38:30,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:38:30,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:38:30,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:38:30,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 21:38:30,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:38:30,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:38:30,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:38:30,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 21:38:30,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:38:30,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-24 21:38:30,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:38:30,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:38:30,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:38:30,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:38:31,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:38:31,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 21:38:31,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:38:31,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:38:31,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:38:31,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 21:38:31,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:38:31,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 21:38:31,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:38:31,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:38:31,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:38:31,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:38:31,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:38:31,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-24 21:38:31,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:38:31,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:38:31,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:38:31,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 21:38:31,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:38:31,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-09-24 21:38:31,074 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:38:31,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 21:38:31,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:38:31,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-24 21:38:31,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:38:31,104 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-09-24 21:38:31,105 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1749754222] [2020-09-24 21:38:31,107 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:38:31,107 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 21:38:31,108 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158566996] [2020-09-24 21:38:31,115 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 21:38:31,115 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:38:31,132 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 21:38:31,134 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-24 21:38:31,136 INFO L87 Difference]: Start difference. First operand 182 states. Second operand 6 states. [2020-09-24 21:38:31,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:38:31,907 INFO L93 Difference]: Finished difference Result 367 states and 421 transitions. [2020-09-24 21:38:31,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-24 21:38:31,910 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 60 [2020-09-24 21:38:31,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:38:31,940 INFO L225 Difference]: With dead ends: 367 [2020-09-24 21:38:31,940 INFO L226 Difference]: Without dead ends: 192 [2020-09-24 21:38:31,952 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-09-24 21:38:31,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2020-09-24 21:38:32,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 172. [2020-09-24 21:38:32,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 172 states. [2020-09-24 21:38:32,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 184 transitions. [2020-09-24 21:38:32,099 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 184 transitions. Word has length 60 [2020-09-24 21:38:32,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:38:32,100 INFO L479 AbstractCegarLoop]: Abstraction has 172 states and 184 transitions. [2020-09-24 21:38:32,100 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 21:38:32,101 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 184 transitions. [2020-09-24 21:38:32,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-09-24 21:38:32,107 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:38:32,107 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:38:32,108 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 21:38:32,108 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:38:32,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:38:32,109 INFO L82 PathProgramCache]: Analyzing trace with hash -1713006157, now seen corresponding path program 1 times [2020-09-24 21:38:32,109 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:38:32,109 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1565959035] [2020-09-24 21:38:32,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:38:32,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:38:32,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:38:32,957 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:38:32,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 21:38:32,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:38:32,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 797 [2020-09-24 21:38:32,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:38:32,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-24 21:38:32,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-09-24 21:38:32,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-09-24 21:38:32,959 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:38:33,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:38:33,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:38:33,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:38:33,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:38:33,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 21:38:33,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:38:33,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-09-24 21:38:33,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:38:33,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:38:33,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:38:33,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 21:38:33,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:38:33,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 21:38:33,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:38:33,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:38:33,100 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:38:33,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:38:33,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:38:33,101 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 21:38:33,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:38:33,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:38:33,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:38:33,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:38:33,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:38:33,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-24 21:38:33,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:38:33,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:38:33,164 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:38:33,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 21:38:33,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:38:33,165 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-09-24 21:38:33,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:38:33,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:38:33,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:38:33,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 21:38:33,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:38:33,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 21:38:33,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:38:33,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:38:33,186 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:38:33,186 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 21:38:33,186 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:38:33,187 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 21:38:33,187 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:38:33,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:38:33,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:38:33,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:38:33,188 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:38:33,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 21:38:33,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:38:33,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:38:33,266 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:38:33,266 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 21:38:33,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:38:33,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-09-24 21:38:33,268 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:38:33,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:38:33,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:38:33,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 21:38:33,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:38:33,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 21:38:33,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:38:33,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:38:33,284 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:38:33,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 21:38:33,287 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:38:33,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 21:38:33,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:38:33,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:38:33,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:38:33,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:38:33,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:38:33,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-24 21:38:33,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:38:33,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:38:33,399 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:38:33,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-24 21:38:33,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:38:33,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-09-24 21:38:33,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:38:33,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 21:38:33,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-24 21:38:33,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 21:38:33,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:38:33,602 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-09-24 21:38:33,603 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1565959035] [2020-09-24 21:38:33,603 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:38:33,603 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 21:38:33,604 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123323127] [2020-09-24 21:38:33,606 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 21:38:33,606 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:38:33,606 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 21:38:33,606 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-09-24 21:38:33,607 INFO L87 Difference]: Start difference. First operand 172 states and 184 transitions. Second operand 10 states. [2020-09-24 21:38:34,106 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 58 [2020-09-24 21:38:34,268 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 67 [2020-09-24 21:38:35,012 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 52 [2020-09-24 21:38:35,155 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2020-09-24 21:38:36,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:38:36,054 INFO L93 Difference]: Finished difference Result 494 states and 552 transitions. [2020-09-24 21:38:36,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-09-24 21:38:36,055 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 63 [2020-09-24 21:38:36,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:38:36,060 INFO L225 Difference]: With dead ends: 494 [2020-09-24 21:38:36,060 INFO L226 Difference]: Without dead ends: 343 [2020-09-24 21:38:36,062 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=178, Invalid=422, Unknown=0, NotChecked=0, Total=600 [2020-09-24 21:38:36,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2020-09-24 21:38:36,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 277. [2020-09-24 21:38:36,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 277 states. [2020-09-24 21:38:36,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 308 transitions. [2020-09-24 21:38:36,108 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 308 transitions. Word has length 63 [2020-09-24 21:38:36,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:38:36,109 INFO L479 AbstractCegarLoop]: Abstraction has 277 states and 308 transitions. [2020-09-24 21:38:36,109 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 21:38:36,109 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 308 transitions. [2020-09-24 21:38:36,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2020-09-24 21:38:36,113 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:38:36,113 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:38:36,114 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 21:38:36,114 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:38:36,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:38:36,114 INFO L82 PathProgramCache]: Analyzing trace with hash 2101448545, now seen corresponding path program 1 times [2020-09-24 21:38:36,114 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:38:36,114 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1495058567] [2020-09-24 21:38:36,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:38:36,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:38:36,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:38:36,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:38:37,132 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:38:37,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 177 [2020-09-24 21:38:37,132 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 21:38:37,132 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 968 [2020-09-24 21:38:37,134 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:38:37,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 21:38:37,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 98 [2020-09-24 21:38:37,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 21:38:37,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:38:37,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:38:37,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:38:37,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:38:37,198 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:38:37,199 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 21:38:37,199 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:38:37,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 21:38:37,200 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:38:37,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:38:37,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:38:37,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:38:37,200 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:38:37,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 21:38:37,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:38:37,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:38:37,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:38:37,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:38:37,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:38:37,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:38:37,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:38:37,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:38:37,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:38:37,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:38:37,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:38:37,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-24 21:38:37,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:38:37,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:38:37,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:38:37,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 21:38:37,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:38:37,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-24 21:38:37,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:38:37,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:38:37,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:38:37,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:38:37,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:38:37,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 21:38:37,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:38:37,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:38:37,252 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:38:37,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 21:38:37,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:38:37,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 21:38:37,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:38:37,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:38:37,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:38:37,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:38:37,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:38:37,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 21:38:37,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:38:37,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:38:37,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:38:37,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 21:38:37,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:38:37,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 21:38:37,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:38:37,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:38:37,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:38:37,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:38:37,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:38:37,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 21:38:37,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:38:37,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:38:37,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:38:37,287 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 21:38:37,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:38:37,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 21:38:37,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:38:37,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:38:37,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:38:37,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:38:37,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:38:37,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-09-24 21:38:37,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:38:37,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:38:37,414 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:38:37,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-24 21:38:37,415 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:38:37,415 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-09-24 21:38:37,415 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:38:37,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 21:38:37,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-09-24 21:38:37,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 21:38:37,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:38:37,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 21:38:37,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:38:37,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:38:37,438 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:38:37,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 21:38:37,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:38:37,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 21:38:37,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:38:37,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:38:37,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:38:37,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:38:37,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:38:37,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-24 21:38:37,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:38:37,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:38:37,494 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:38:37,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 21:38:37,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:38:37,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-09-24 21:38:37,495 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:38:37,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 21:38:37,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 21:38:37,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 21:38:37,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:38:37,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:38:37,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:38:37,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:38:37,540 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:38:37,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 21:38:37,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:38:37,541 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-24 21:38:37,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:38:37,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 21:38:37,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:38:37,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-24 21:38:37,542 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:38:37,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-09-24 21:38:37,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:38:37,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:38:37,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:38:37,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:38:37,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-24 21:38:37,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 21:38:37,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 113 [2020-09-24 21:38:37,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:38:37,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 21:38:37,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-09-24 21:38:37,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 21:38:37,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:38:37,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 21:38:37,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:38:37,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:38:37,703 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:38:37,703 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 21:38:37,704 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:38:37,704 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 21:38:37,704 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:38:37,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:38:37,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:38:37,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:38:37,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:38:37,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-24 21:38:37,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:38:37,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:38:37,758 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:38:37,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 21:38:37,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:38:37,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-09-24 21:38:37,759 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:38:37,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 21:38:37,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 21:38:37,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 21:38:37,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:38:37,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:38:37,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:38:37,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:38:37,803 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:38:37,803 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 21:38:37,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:38:37,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-24 21:38:37,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:38:37,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 21:38:37,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:38:37,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-24 21:38:37,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:38:37,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-09-24 21:38:37,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:38:37,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:38:37,827 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:38:37,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 21:38:37,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:38:37,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 21:38:37,828 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:38:37,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:38:37,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-24 21:38:37,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:38:37,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:38:37,851 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 125 trivial. 0 not checked. [2020-09-24 21:38:37,852 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1495058567] [2020-09-24 21:38:37,852 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 21:38:37,852 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-24 21:38:37,853 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673788159] [2020-09-24 21:38:37,853 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 21:38:37,854 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:38:37,854 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 21:38:37,854 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-24 21:38:37,854 INFO L87 Difference]: Start difference. First operand 277 states and 308 transitions. Second operand 7 states. [2020-09-24 21:38:38,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:38:38,662 INFO L93 Difference]: Finished difference Result 511 states and 568 transitions. [2020-09-24 21:38:38,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 21:38:38,662 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 138 [2020-09-24 21:38:38,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:38:38,666 INFO L225 Difference]: With dead ends: 511 [2020-09-24 21:38:38,667 INFO L226 Difference]: Without dead ends: 286 [2020-09-24 21:38:38,668 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 35 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2020-09-24 21:38:38,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2020-09-24 21:38:38,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 283. [2020-09-24 21:38:38,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 283 states. [2020-09-24 21:38:38,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 314 transitions. [2020-09-24 21:38:38,698 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 314 transitions. Word has length 138 [2020-09-24 21:38:38,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:38:38,699 INFO L479 AbstractCegarLoop]: Abstraction has 283 states and 314 transitions. [2020-09-24 21:38:38,699 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 21:38:38,699 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 314 transitions. [2020-09-24 21:38:38,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2020-09-24 21:38:38,702 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:38:38,702 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:38:38,703 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 21:38:38,703 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:38:38,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:38:38,703 INFO L82 PathProgramCache]: Analyzing trace with hash 1665265261, now seen corresponding path program 1 times [2020-09-24 21:38:38,704 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:38:38,704 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [966111052] [2020-09-24 21:38:38,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:38:38,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:38:38,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:38:38,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:38:39,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:38:43,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:38:43,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-09-24 21:38:43,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 21:38:43,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5019 [2020-09-24 21:38:43,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:38:43,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-24 21:38:43,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-09-24 21:38:43,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-09-24 21:38:43,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:38:43,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:38:43,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:38:43,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:38:43,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:38:43,885 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 21:38:43,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:38:43,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-24 21:38:43,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:38:43,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:38:43,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:38:43,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 21:38:43,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:38:43,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 21:38:43,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:38:43,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:38:43,905 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:38:43,906 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:38:43,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:38:43,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 21:38:43,907 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:38:43,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:38:43,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:38:43,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:38:43,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:38:43,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-24 21:38:43,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:38:43,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:38:43,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:38:43,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 21:38:43,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:38:43,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-09-24 21:38:43,972 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:38:43,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:38:43,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:38:43,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 21:38:43,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:38:43,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 21:38:43,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:38:43,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:38:43,991 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:38:43,992 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 21:38:43,992 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:38:43,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 21:38:43,993 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:38:43,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:38:43,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:38:43,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:38:43,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:38:43,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 21:38:44,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:38:44,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:38:44,032 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:38:44,033 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 21:38:44,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:38:44,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-24 21:38:44,034 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:38:44,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:38:44,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:38:44,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 21:38:44,035 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:38:44,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 21:38:44,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:38:44,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:38:44,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:38:44,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 21:38:44,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:38:44,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 21:38:44,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:38:44,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:38:44,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:38:44,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:38:44,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:38:44,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-09-24 21:38:44,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:38:44,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:38:44,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:38:45,311 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:38:45,311 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-09-24 21:38:45,311 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 21:38:45,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1226 [2020-09-24 21:38:45,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:38:45,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-24 21:38:45,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 21:38:45,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-09-24 21:38:45,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:38:45,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 21:38:45,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:38:45,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:38:45,373 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:38:45,373 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 21:38:45,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:38:45,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-24 21:38:45,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:38:45,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:38:45,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:38:45,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-24 21:38:45,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:38:45,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-24 21:38:45,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:38:45,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:38:45,537 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:38:45,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-09-24 21:38:45,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:38:45,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 150 [2020-09-24 21:38:45,538 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:38:45,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 21:38:45,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 21:38:45,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-24 21:38:45,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:38:45,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:38:45,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:38:45,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:38:45,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:38:45,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-24 21:38:45,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:38:45,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-09-24 21:38:45,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:38:45,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 21:38:45,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:38:45,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-09-24 21:38:45,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:38:46,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 21:38:46,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:38:46,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:38:46,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:38:46,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:38:46,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-09-24 21:38:46,543 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 21:38:46,543 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 527 [2020-09-24 21:38:46,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:38:46,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-24 21:38:46,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-09-24 21:38:46,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-09-24 21:38:46,544 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:38:46,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 21:38:46,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:38:46,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:38:46,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:38:46,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 21:38:46,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:38:46,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-09-24 21:38:46,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:38:46,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 21:38:46,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:38:46,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-24 21:38:46,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:38:46,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-24 21:38:46,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:38:46,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:38:46,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:38:46,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-09-24 21:38:46,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:38:46,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 170 [2020-09-24 21:38:46,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:38:46,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 21:38:46,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 21:38:46,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-24 21:38:46,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:38:46,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:38:46,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:38:46,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:38:47,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:38:47,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-24 21:38:47,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:38:47,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-09-24 21:38:47,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:38:47,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 21:38:47,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:38:47,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-09-24 21:38:47,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:38:47,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-24 21:38:47,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:38:47,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:38:47,126 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:38:47,127 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 21:38:47,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:38:47,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 21:38:47,128 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:38:47,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:38:47,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-24 21:38:47,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:38:47,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:38:47,227 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 35 proven. 34 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2020-09-24 21:38:47,227 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [966111052] [2020-09-24 21:38:47,228 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 21:38:47,228 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-09-24 21:38:47,229 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412490488] [2020-09-24 21:38:47,231 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-09-24 21:38:47,232 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:38:47,232 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-09-24 21:38:47,233 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=294, Unknown=0, NotChecked=0, Total=342 [2020-09-24 21:38:47,233 INFO L87 Difference]: Start difference. First operand 283 states and 314 transitions. Second operand 19 states. [2020-09-24 21:38:51,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:38:51,513 INFO L93 Difference]: Finished difference Result 772 states and 860 transitions. [2020-09-24 21:38:51,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2020-09-24 21:38:51,517 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 144 [2020-09-24 21:38:51,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:38:51,521 INFO L225 Difference]: With dead ends: 772 [2020-09-24 21:38:51,521 INFO L226 Difference]: Without dead ends: 432 [2020-09-24 21:38:51,525 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 931 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=640, Invalid=2900, Unknown=0, NotChecked=0, Total=3540 [2020-09-24 21:38:51,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 432 states. [2020-09-24 21:38:51,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 432 to 352. [2020-09-24 21:38:51,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 352 states. [2020-09-24 21:38:51,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 352 states to 352 states and 382 transitions. [2020-09-24 21:38:51,561 INFO L78 Accepts]: Start accepts. Automaton has 352 states and 382 transitions. Word has length 144 [2020-09-24 21:38:51,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:38:51,562 INFO L479 AbstractCegarLoop]: Abstraction has 352 states and 382 transitions. [2020-09-24 21:38:51,562 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-09-24 21:38:51,562 INFO L276 IsEmpty]: Start isEmpty. Operand 352 states and 382 transitions. [2020-09-24 21:38:51,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2020-09-24 21:38:51,564 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:38:51,565 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:38:51,565 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 21:38:51,565 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:38:51,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:38:51,566 INFO L82 PathProgramCache]: Analyzing trace with hash 203347141, now seen corresponding path program 1 times [2020-09-24 21:38:51,566 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:38:51,566 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [250497508] [2020-09-24 21:38:51,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:38:51,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-24 21:38:51,620 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-24 21:38:51,621 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-24 21:38:51,627 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 21:38:51,654 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 09:38:51 BoogieIcfgContainer [2020-09-24 21:38:51,654 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 21:38:51,656 INFO L168 Benchmark]: Toolchain (without parser) took 23522.13 ms. Allocated memory was 140.0 MB in the beginning and 459.8 MB in the end (delta: 319.8 MB). Free memory was 101.6 MB in the beginning and 178.0 MB in the end (delta: -76.3 MB). Peak memory consumption was 243.5 MB. Max. memory is 7.1 GB. [2020-09-24 21:38:51,657 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2020-09-24 21:38:51,658 INFO L168 Benchmark]: CACSL2BoogieTranslator took 810.38 ms. Allocated memory was 140.0 MB in the beginning and 203.9 MB in the end (delta: 64.0 MB). Free memory was 101.0 MB in the beginning and 165.9 MB in the end (delta: -64.9 MB). Peak memory consumption was 25.3 MB. Max. memory is 7.1 GB. [2020-09-24 21:38:51,659 INFO L168 Benchmark]: Boogie Preprocessor took 106.56 ms. Allocated memory is still 203.9 MB. Free memory was 165.9 MB in the beginning and 162.5 MB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 7.1 GB. [2020-09-24 21:38:51,660 INFO L168 Benchmark]: RCFGBuilder took 917.60 ms. Allocated memory is still 203.9 MB. Free memory was 161.8 MB in the beginning and 92.7 MB in the end (delta: 69.1 MB). Peak memory consumption was 69.1 MB. Max. memory is 7.1 GB. [2020-09-24 21:38:51,661 INFO L168 Benchmark]: TraceAbstraction took 21674.89 ms. Allocated memory was 203.9 MB in the beginning and 459.8 MB in the end (delta: 255.9 MB). Free memory was 92.7 MB in the beginning and 178.0 MB in the end (delta: -85.2 MB). Peak memory consumption was 170.6 MB. Max. memory is 7.1 GB. [2020-09-24 21:38:51,664 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 810.38 ms. Allocated memory was 140.0 MB in the beginning and 203.9 MB in the end (delta: 64.0 MB). Free memory was 101.0 MB in the beginning and 165.9 MB in the end (delta: -64.9 MB). Peak memory consumption was 25.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 106.56 ms. Allocated memory is still 203.9 MB. Free memory was 165.9 MB in the beginning and 162.5 MB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 917.60 ms. Allocated memory is still 203.9 MB. Free memory was 161.8 MB in the beginning and 92.7 MB in the end (delta: 69.1 MB). Peak memory consumption was 69.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 21674.89 ms. Allocated memory was 203.9 MB in the beginning and 459.8 MB in the end (delta: 255.9 MB). Free memory was 92.7 MB in the beginning and 178.0 MB in the end (delta: -85.2 MB). Peak memory consumption was 170.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 658]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L654] struct ldv_list_head mutexes = { &(mutexes), &(mutexes) }; [L681] CALL foo() [L670] FCALL ldv_initialize() [L671] CALL, EXPR ldv_successful_malloc(sizeof(struct mutex)) [L565] void *ptr = malloc(size); [L566] CALL assume_abort_if_not(ptr!=0) [L554] COND FALSE !(!cond) [L566] RET assume_abort_if_not(ptr!=0) [L567] return ptr; [L671] RET, EXPR ldv_successful_malloc(sizeof(struct mutex)) [L671] struct mutex *m1 = ldv_successful_malloc(sizeof(struct mutex)); [L672] CALL, EXPR ldv_successful_malloc(sizeof(struct mutex)) [L565] void *ptr = malloc(size); [L566] CALL assume_abort_if_not(ptr!=0) [L554] COND FALSE !(!cond) [L566] RET assume_abort_if_not(ptr!=0) [L567] return ptr; [L672] RET, EXPR ldv_successful_malloc(sizeof(struct mutex)) [L672] struct mutex *m2 = ldv_successful_malloc(sizeof(struct mutex)); [L673] CALL mutex_lock(m1) [L658] CALL ldv_is_in_set(m, &mutexes) [L643] struct ldv_list_element *m; [L644] EXPR (s)->next [L644] const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); [L644] m = ({ const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); (typeof(*m) *)( (char *)__mptr - ((size_t) &((typeof(*m) *)0)->list) );}) [L644] COND FALSE !(&m->list != (s)) [L649] return 0; [L658] RET ldv_is_in_set(m, &mutexes) [L658] COND FALSE !(ldv_is_in_set(m, &mutexes)) [L659] CALL ldv_set_add(m, &mutexes) [L625] CALL, EXPR ldv_is_in_set(new, s) [L643] struct ldv_list_element *m; [L644] EXPR (s)->next [L644] const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); [L644] m = ({ const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); (typeof(*m) *)( (char *)__mptr - ((size_t) &((typeof(*m) *)0)->list) );}) [L644] COND FALSE !(&m->list != (s)) [L649] return 0; [L625] RET, EXPR ldv_is_in_set(new, s) [L625] COND TRUE !ldv_is_in_set(new, s) [L626] struct ldv_list_element *le; [L627] CALL, EXPR ldv_successful_malloc(sizeof(struct ldv_list_element)) [L565] void *ptr = malloc(size); [L566] CALL assume_abort_if_not(ptr!=0) [L554] COND FALSE !(!cond) [L566] RET assume_abort_if_not(ptr!=0) [L567] return ptr; [L627] RET, EXPR ldv_successful_malloc(sizeof(struct ldv_list_element)) [L627] le = (struct ldv_list_element*)ldv_successful_malloc(sizeof(struct ldv_list_element)) [L628] le->e = new [L629] CALL ldv_list_add(&le->list, s) [L597] EXPR head->next [L597] CALL __ldv_list_add(new, head, head->next) [L585] next->prev = new [L586] new->next = next [L587] new->prev = prev [L588] prev->next = new [L597] RET __ldv_list_add(new, head, head->next) [L629] RET ldv_list_add(&le->list, s) [L659] RET ldv_set_add(m, &mutexes) [L673] RET mutex_lock(m1) [L674] CALL mutex_lock(m1) [L658] CALL ldv_is_in_set(m, &mutexes) [L643] struct ldv_list_element *m; [L644] EXPR (s)->next [L644] const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); [L644] m = ({ const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); (typeof(*m) *)( (char *)__mptr - ((size_t) &((typeof(*m) *)0)->list) );}) [L644] COND TRUE &m->list != (s) [L645] EXPR m->e [L645] COND TRUE m->e == e [L646] return 1; [L658] RET ldv_is_in_set(m, &mutexes) [L658] COND TRUE ldv_is_in_set(m, &mutexes) [L658] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 25 procedures, 215 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 21.5s, OverallIterations: 5, TraceHistogramMax: 5, AutomataDifference: 8.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 780 SDtfs, 1871 SDslu, 597 SDs, 0 SdLazy, 3638 SolverSat, 379 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 214 GetRequests, 118 SyntacticMatches, 1 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1039 ImplicationChecksByTransitivity, 3.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=352occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 4 MinimizatonAttempts, 169 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 12.2s InterpolantComputationTime, 540 NumberOfCodeBlocks, 540 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 401 ConstructedInterpolants, 0 QuantifiedInterpolants, 254862 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 253/293 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...