/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=SMALLEST --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 18:18:51,368 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 18:18:51,372 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 18:18:51,399 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 18:18:51,399 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 18:18:51,400 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 18:18:51,402 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 18:18:51,404 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 18:18:51,406 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 18:18:51,407 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 18:18:51,408 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 18:18:51,410 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 18:18:51,410 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 18:18:51,412 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 18:18:51,413 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 18:18:51,414 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 18:18:51,416 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 18:18:51,417 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 18:18:51,419 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 18:18:51,423 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 18:18:51,425 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 18:18:51,427 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 18:18:51,428 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 18:18:51,429 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 18:18:51,432 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 18:18:51,433 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 18:18:51,433 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 18:18:51,434 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 18:18:51,435 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 18:18:51,436 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 18:18:51,436 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 18:18:51,437 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 18:18:51,438 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 18:18:51,439 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 18:18:51,440 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 18:18:51,441 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 18:18:51,442 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 18:18:51,442 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 18:18:51,442 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 18:18:51,443 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 18:18:51,444 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 18:18:51,445 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 18:18:51,472 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 18:18:51,473 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 18:18:51,474 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 18:18:51,475 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 18:18:51,475 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 18:18:51,475 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 18:18:51,475 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 18:18:51,475 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 18:18:51,476 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 18:18:51,476 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 18:18:51,476 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 18:18:51,476 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 18:18:51,476 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 18:18:51,477 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 18:18:51,477 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 18:18:51,477 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 18:18:51,477 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 18:18:51,478 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 18:18:51,478 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 18:18:51,478 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 18:18:51,478 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 18:18:51,478 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 18:18:51,479 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 18:18:51,479 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 18:18:51,479 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 18:18:51,479 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 18:18:51,480 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 18:18:51,480 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 18:18:51,480 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 18:18:51,480 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=SMALLEST;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=SMALLEST;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=SMALLEST;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=SMALLEST;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=SMALLEST;log-additional-information=true; [2020-09-24 18:18:51,960 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 18:18:51,979 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 18:18:51,985 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 18:18:51,987 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 18:18:51,988 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 18:18:51,989 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-sets/test_mutex_double_lock.i [2020-09-24 18:18:52,106 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bc6257b4c/d7c5e17fb53a412fb83e06fbbd3f09b8/FLAG4ee36cc68 [2020-09-24 18:18:52,775 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 18:18:52,776 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-sets/test_mutex_double_lock.i [2020-09-24 18:18:52,814 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bc6257b4c/d7c5e17fb53a412fb83e06fbbd3f09b8/FLAG4ee36cc68 [2020-09-24 18:18:53,016 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bc6257b4c/d7c5e17fb53a412fb83e06fbbd3f09b8 [2020-09-24 18:18:53,031 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 18:18:53,039 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 18:18:53,040 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 18:18:53,040 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 18:18:53,045 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 18:18:53,046 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 06:18:53" (1/1) ... [2020-09-24 18:18:53,051 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58f9cf67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:18:53, skipping insertion in model container [2020-09-24 18:18:53,051 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 06:18:53" (1/1) ... [2020-09-24 18:18:53,066 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 18:18:53,155 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 18:18:53,710 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 18:18:53,723 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 18:18:53,787 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 18:18:53,865 INFO L208 MainTranslator]: Completed translation [2020-09-24 18:18:53,865 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:18:53 WrapperNode [2020-09-24 18:18:53,866 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 18:18:53,867 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 18:18:53,867 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 18:18:53,867 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 18:18:53,885 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:18:53" (1/1) ... [2020-09-24 18:18:53,885 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:18:53" (1/1) ... [2020-09-24 18:18:53,911 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:18:53" (1/1) ... [2020-09-24 18:18:53,911 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:18:53" (1/1) ... [2020-09-24 18:18:53,941 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:18:53" (1/1) ... [2020-09-24 18:18:53,948 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:18:53" (1/1) ... [2020-09-24 18:18:53,953 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:18:53" (1/1) ... [2020-09-24 18:18:53,962 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 18:18:53,963 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 18:18:53,963 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 18:18:53,963 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 18:18:53,964 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:18:53" (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 18:18:54,046 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 18:18:54,046 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 18:18:54,047 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-09-24 18:18:54,047 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-09-24 18:18:54,047 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-24 18:18:54,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-09-24 18:18:54,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_successful_malloc [2020-09-24 18:18:54,048 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2020-09-24 18:18:54,048 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2020-09-24 18:18:54,048 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2020-09-24 18:18:54,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2020-09-24 18:18:54,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2020-09-24 18:18:54,049 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2020-09-24 18:18:54,049 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_empty [2020-09-24 18:18:54,049 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_set [2020-09-24 18:18:54,049 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_add [2020-09-24 18:18:54,049 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_del [2020-09-24 18:18:54,050 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_in_set [2020-09-24 18:18:54,050 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_empty [2020-09-24 18:18:54,050 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-09-24 18:18:54,050 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2020-09-24 18:18:54,051 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2020-09-24 18:18:54,051 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-09-24 18:18:54,051 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2020-09-24 18:18:54,051 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 18:18:54,051 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-09-24 18:18:54,051 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-09-24 18:18:54,052 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-09-24 18:18:54,052 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-09-24 18:18:54,052 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-09-24 18:18:54,052 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-09-24 18:18:54,052 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-09-24 18:18:54,052 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-09-24 18:18:54,053 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-09-24 18:18:54,053 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-09-24 18:18:54,053 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-09-24 18:18:54,053 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-09-24 18:18:54,053 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-09-24 18:18:54,053 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-09-24 18:18:54,054 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-09-24 18:18:54,054 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-09-24 18:18:54,054 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-09-24 18:18:54,054 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-09-24 18:18:54,054 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-09-24 18:18:54,054 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-09-24 18:18:54,055 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-09-24 18:18:54,055 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-09-24 18:18:54,055 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-09-24 18:18:54,055 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-09-24 18:18:54,055 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-09-24 18:18:54,055 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-09-24 18:18:54,056 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-09-24 18:18:54,056 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-09-24 18:18:54,056 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-09-24 18:18:54,056 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-09-24 18:18:54,056 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-09-24 18:18:54,056 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-09-24 18:18:54,057 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-09-24 18:18:54,057 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-09-24 18:18:54,057 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-09-24 18:18:54,057 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-09-24 18:18:54,057 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-09-24 18:18:54,057 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-09-24 18:18:54,058 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-09-24 18:18:54,058 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-09-24 18:18:54,058 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-09-24 18:18:54,058 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-09-24 18:18:54,058 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-09-24 18:18:54,058 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-09-24 18:18:54,059 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-09-24 18:18:54,059 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-09-24 18:18:54,059 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-09-24 18:18:54,059 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-09-24 18:18:54,059 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-09-24 18:18:54,060 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-09-24 18:18:54,060 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-09-24 18:18:54,060 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-09-24 18:18:54,060 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 18:18:54,060 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-09-24 18:18:54,060 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-09-24 18:18:54,061 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 18:18:54,061 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-09-24 18:18:54,061 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-09-24 18:18:54,061 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-09-24 18:18:54,061 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-09-24 18:18:54,061 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-24 18:18:54,062 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-09-24 18:18:54,062 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-09-24 18:18:54,062 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-09-24 18:18:54,062 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-09-24 18:18:54,062 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-09-24 18:18:54,062 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-09-24 18:18:54,062 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-09-24 18:18:54,063 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-09-24 18:18:54,063 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-09-24 18:18:54,063 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-09-24 18:18:54,063 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-09-24 18:18:54,063 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-09-24 18:18:54,064 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-09-24 18:18:54,064 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-09-24 18:18:54,064 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-09-24 18:18:54,064 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-09-24 18:18:54,064 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-09-24 18:18:54,064 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-09-24 18:18:54,065 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-09-24 18:18:54,065 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-09-24 18:18:54,065 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-09-24 18:18:54,065 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-09-24 18:18:54,065 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-09-24 18:18:54,065 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-09-24 18:18:54,066 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-09-24 18:18:54,066 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-09-24 18:18:54,066 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-09-24 18:18:54,066 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-09-24 18:18:54,066 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-09-24 18:18:54,066 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-09-24 18:18:54,067 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-09-24 18:18:54,067 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-09-24 18:18:54,067 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-09-24 18:18:54,067 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-09-24 18:18:54,067 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-09-24 18:18:54,067 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-09-24 18:18:54,068 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-09-24 18:18:54,068 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-09-24 18:18:54,068 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-09-24 18:18:54,068 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-09-24 18:18:54,068 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-09-24 18:18:54,071 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 18:18:54,071 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-24 18:18:54,071 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 18:18:54,071 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-09-24 18:18:54,072 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 18:18:54,072 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_successful_malloc [2020-09-24 18:18:54,072 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2020-09-24 18:18:54,072 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 18:18:54,072 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2020-09-24 18:18:54,072 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2020-09-24 18:18:54,073 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2020-09-24 18:18:54,073 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 18:18:54,073 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2020-09-24 18:18:54,073 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2020-09-24 18:18:54,073 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_empty [2020-09-24 18:18:54,073 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_set [2020-09-24 18:18:54,074 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_add [2020-09-24 18:18:54,074 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_del [2020-09-24 18:18:54,074 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_in_set [2020-09-24 18:18:54,074 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_empty [2020-09-24 18:18:54,074 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 18:18:54,075 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-09-24 18:18:54,075 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2020-09-24 18:18:54,075 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2020-09-24 18:18:54,075 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-09-24 18:18:54,075 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2020-09-24 18:18:54,075 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 18:18:54,076 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 18:18:54,076 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 18:18:54,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-09-24 18:18:54,076 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 18:18:54,876 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 18:18:54,876 INFO L295 CfgBuilder]: Removed 2 assume(true) statements. [2020-09-24 18:18:54,882 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 06:18:54 BoogieIcfgContainer [2020-09-24 18:18:54,883 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 18:18:54,884 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 18:18:54,900 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 18:18:54,906 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 18:18:54,907 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 06:18:53" (1/3) ... [2020-09-24 18:18:54,908 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5dee13f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 06:18:54, skipping insertion in model container [2020-09-24 18:18:54,908 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:18:53" (2/3) ... [2020-09-24 18:18:54,908 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5dee13f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 06:18:54, skipping insertion in model container [2020-09-24 18:18:54,908 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 06:18:54" (3/3) ... [2020-09-24 18:18:54,911 INFO L109 eAbstractionObserver]: Analyzing ICFG test_mutex_double_lock.i [2020-09-24 18:18:54,922 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 18:18:54,933 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-09-24 18:18:54,954 INFO L251 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-09-24 18:18:54,983 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 18:18:54,983 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 18:18:54,983 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 18:18:54,983 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 18:18:54,984 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 18:18:54,984 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 18:18:54,984 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 18:18:54,984 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 18:18:55,010 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states. [2020-09-24 18:18:55,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-09-24 18:18:55,020 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:18:55,021 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 18:18:55,022 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:18:55,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:18:55,030 INFO L82 PathProgramCache]: Analyzing trace with hash 899835465, now seen corresponding path program 1 times [2020-09-24 18:18:55,039 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:18:55,040 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1409858121] [2020-09-24 18:18:55,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:18:55,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:18:55,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:18:55,657 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:18:55,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-09-24 18:18:55,658 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:18:55,658 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 404 [2020-09-24 18:18:55,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:18:55,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 18:18:55,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 76 [2020-09-24 18:18:55,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 18:18:55,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-24 18:18:55,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:18:55,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:18:55,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:18:55,801 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:18:55,801 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 18:18:55,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:18:55,802 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-24 18:18:55,802 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:18:55,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:18:55,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:18:55,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:18:55,803 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:18:55,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 18:18:55,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:18:55,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:18:55,820 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:18:55,820 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:18:55,820 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:18:55,820 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 18:18:55,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:18:55,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:18:55,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:18:55,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:18:55,822 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:18:55,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-24 18:18:55,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:18:55,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:18:55,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:18:55,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 18:18:55,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:18:55,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-24 18:18:55,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:18:55,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:18:55,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:18:55,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:18:55,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:18:55,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 18:18:55,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:18:55,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:18:55,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:18:55,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 18:18:55,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:18:55,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 18:18:55,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:18:55,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:18:55,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:18:55,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:18:55,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:18:55,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 18:18:55,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:18:55,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:18:55,911 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:18:55,912 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 18:18:55,912 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:18:55,912 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-24 18:18:55,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:18:55,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:18:55,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:18:55,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:18:55,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:18:55,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 18:18:55,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:18:55,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:18:55,934 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:18:55,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 18:18:55,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:18:55,935 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 18:18:55,936 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:18:55,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:18:55,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:18:55,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:18:55,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:18:55,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-24 18:18:55,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:18:55,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:18:55,993 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:18:55,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 18:18:55,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:18:55,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-09-24 18:18:55,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:18:55,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 18:18:55,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:18:55,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-24 18:18:55,995 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:18:56,022 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 18:18:56,023 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1409858121] [2020-09-24 18:18:56,025 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:18:56,026 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 18:18:56,027 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168113031] [2020-09-24 18:18:56,033 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 18:18:56,034 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:18:56,051 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 18:18:56,053 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-24 18:18:56,056 INFO L87 Difference]: Start difference. First operand 182 states. Second operand 6 states. [2020-09-24 18:18:56,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:18:56,907 INFO L93 Difference]: Finished difference Result 367 states and 421 transitions. [2020-09-24 18:18:56,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-24 18:18:56,909 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 60 [2020-09-24 18:18:56,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:18:56,928 INFO L225 Difference]: With dead ends: 367 [2020-09-24 18:18:56,928 INFO L226 Difference]: Without dead ends: 192 [2020-09-24 18:18:56,935 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 18:18:56,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2020-09-24 18:18:57,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 172. [2020-09-24 18:18:57,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 172 states. [2020-09-24 18:18:57,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 184 transitions. [2020-09-24 18:18:57,018 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 184 transitions. Word has length 60 [2020-09-24 18:18:57,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:18:57,019 INFO L479 AbstractCegarLoop]: Abstraction has 172 states and 184 transitions. [2020-09-24 18:18:57,019 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 18:18:57,019 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 184 transitions. [2020-09-24 18:18:57,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-09-24 18:18:57,023 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:18:57,023 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 18:18:57,023 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 18:18:57,024 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:18:57,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:18:57,024 INFO L82 PathProgramCache]: Analyzing trace with hash -1713006157, now seen corresponding path program 1 times [2020-09-24 18:18:57,024 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:18:57,025 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1209689080] [2020-09-24 18:18:57,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:18:57,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:18:57,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:18:57,686 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:18:57,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 18:18:57,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:18:57,687 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 628 [2020-09-24 18:18:57,687 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:18:57,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-24 18:18:57,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-09-24 18:18:57,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-09-24 18:18:57,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:18:57,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:18:57,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:18:57,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:18:57,818 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:18:57,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 18:18:57,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:18:57,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-09-24 18:18:57,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:18:57,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:18:57,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:18:57,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 18:18:57,820 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:18:57,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 18:18:57,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:18:57,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:18:57,843 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:18:57,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:18:57,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:18:57,844 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 18:18:57,844 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:18:57,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:18:57,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:18:57,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 18:18:57,845 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:18:57,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-24 18:18:57,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:18:57,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:18:57,907 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:18:57,907 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 18:18:57,908 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:18:57,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-09-24 18:18:57,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:18:57,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:18:57,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:18:57,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 18:18:57,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:18:57,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 18:18:57,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:18:57,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:18:57,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:18:57,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 18:18:57,929 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:18:57,929 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 18:18:57,952 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:18:57,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:18:57,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:18:57,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:18:57,953 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:18:57,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 18:18:57,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:18:57,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:18:58,002 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:18:58,003 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 18:18:58,004 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:18:58,004 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-09-24 18:18:58,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:18:58,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:18:58,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:18:58,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 18:18:58,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:18:58,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 18:18:58,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:18:58,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:18:58,022 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:18:58,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 18:18:58,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:18:58,028 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 18:18:58,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:18:58,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:18:58,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:18:58,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:18:58,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-24 18:18:58,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-24 18:18:58,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:18:58,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:18:58,141 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:18:58,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-24 18:18:58,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:18:58,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-09-24 18:18:58,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:18:58,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 18:18:58,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-24 18:18:58,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 18:18:58,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:18:58,378 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 18:18:58,378 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1209689080] [2020-09-24 18:18:58,379 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:18:58,379 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 18:18:58,379 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680422876] [2020-09-24 18:18:58,382 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 18:18:58,382 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:18:58,382 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 18:18:58,382 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-09-24 18:18:58,383 INFO L87 Difference]: Start difference. First operand 172 states and 184 transitions. Second operand 10 states. [2020-09-24 18:18:58,902 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 58 [2020-09-24 18:18:59,052 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 67 [2020-09-24 18:18:59,799 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 52 [2020-09-24 18:18:59,953 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2020-09-24 18:19:00,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:19:00,835 INFO L93 Difference]: Finished difference Result 494 states and 552 transitions. [2020-09-24 18:19:00,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-09-24 18:19:00,836 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 63 [2020-09-24 18:19:00,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:19:00,848 INFO L225 Difference]: With dead ends: 494 [2020-09-24 18:19:00,848 INFO L226 Difference]: Without dead ends: 343 [2020-09-24 18:19:00,856 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=178, Invalid=422, Unknown=0, NotChecked=0, Total=600 [2020-09-24 18:19:00,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2020-09-24 18:19:00,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 277. [2020-09-24 18:19:00,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 277 states. [2020-09-24 18:19:00,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 308 transitions. [2020-09-24 18:19:00,908 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 308 transitions. Word has length 63 [2020-09-24 18:19:00,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:19:00,909 INFO L479 AbstractCegarLoop]: Abstraction has 277 states and 308 transitions. [2020-09-24 18:19:00,909 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 18:19:00,909 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 308 transitions. [2020-09-24 18:19:00,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2020-09-24 18:19:00,915 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:19:00,915 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 18:19:00,916 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 18:19:00,916 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:19:00,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:19:00,917 INFO L82 PathProgramCache]: Analyzing trace with hash 2101448545, now seen corresponding path program 1 times [2020-09-24 18:19:00,917 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:19:00,917 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [238698855] [2020-09-24 18:19:00,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:19:00,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:19:00,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:19:01,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:19:01,926 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:19:01,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 177 [2020-09-24 18:19:01,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 18:19:01,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 964 [2020-09-24 18:19:01,928 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:19:01,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 18:19:01,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 145 [2020-09-24 18:19:01,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 18:19:01,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 18:19:01,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:19:01,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:19:01,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:19:02,009 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:19:02,010 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 18:19:02,010 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:19:02,011 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 18:19:02,011 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:19:02,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:19:02,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:19:02,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:19:02,012 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:19:02,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 18:19:02,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:19:02,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:19:02,022 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:19:02,022 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:19:02,022 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:19:02,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:19:02,023 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:19:02,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:19:02,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:19:02,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:19:02,024 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:19:02,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-24 18:19:02,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:19:02,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:19:02,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:19:02,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 18:19:02,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:19:02,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-24 18:19:02,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:19:02,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:19:02,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:19:02,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:19:02,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:19:02,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 18:19:02,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:19:02,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:19:02,072 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:19:02,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 18:19:02,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:19:02,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 18:19:02,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:19:02,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:19:02,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:19:02,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:19:02,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:19:02,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 18:19:02,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:19:02,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:19:02,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:19:02,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 18:19:02,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:19:02,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-24 18:19:02,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:19:02,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:19:02,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:19:02,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:19:02,103 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:19:02,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 18:19:02,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:19:02,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:19:02,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:19:02,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 18:19:02,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:19:02,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 18:19:02,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:19:02,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:19:02,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:19:02,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:19:02,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:19:02,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-09-24 18:19:02,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:19:02,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:19:02,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:19:02,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:19:02,287 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-24 18:19:02,287 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 18:19:02,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 149 [2020-09-24 18:19:02,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:19:02,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:19:02,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:19:02,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:19:02,288 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:19:02,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 18:19:02,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:19:02,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:19:02,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:19:02,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 18:19:02,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:19:02,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 18:19:02,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:19:02,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:19:02,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:19:02,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:19:02,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:19:02,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-24 18:19:02,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:19:02,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:19:02,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:19:02,385 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:19:02,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 18:19:02,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 18:19:02,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-09-24 18:19:02,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:19:02,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:19:02,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:19:02,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:19:02,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:19:02,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 18:19:02,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:19:02,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:19:02,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:19:02,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 18:19:02,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:19:02,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 18:19:02,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:19:02,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:19:02,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:19:02,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:19:02,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:19:02,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-09-24 18:19:02,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:19:02,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:19:02,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:19:02,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-24 18:19:02,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:19:02,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-09-24 18:19:02,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:19:02,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 18:19:02,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-09-24 18:19:02,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 18:19:02,520 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:19:02,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 18:19:02,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:19:02,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:19:02,541 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:19:02,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 18:19:02,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:19:02,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 18:19:02,542 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:19:02,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:19:02,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:19:02,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:19:02,544 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:19:02,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-24 18:19:02,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:19:02,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:19:02,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:19:02,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 18:19:02,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:19:02,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-09-24 18:19:02,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:19:02,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 18:19:02,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 18:19:02,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 18:19:02,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:19:02,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 18:19:02,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:19:02,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:19:02,649 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:19:02,650 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 18:19:02,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:19:02,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-24 18:19:02,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:19:02,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 18:19:02,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:19:02,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-24 18:19:02,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:19:02,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-09-24 18:19:02,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:19:02,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:19:02,682 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:19:02,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 18:19:02,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:19:02,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 18:19:02,683 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:19:02,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:19:02,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-24 18:19:02,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:19:02,684 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:19:02,705 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 13 proven. 2 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2020-09-24 18:19:02,706 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [238698855] [2020-09-24 18:19:02,706 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 18:19:02,706 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-24 18:19:02,706 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116373141] [2020-09-24 18:19:02,708 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 18:19:02,708 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:19:02,709 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 18:19:02,710 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-24 18:19:02,710 INFO L87 Difference]: Start difference. First operand 277 states and 308 transitions. Second operand 7 states. [2020-09-24 18:19:03,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:19:03,428 INFO L93 Difference]: Finished difference Result 511 states and 568 transitions. [2020-09-24 18:19:03,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 18:19:03,428 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 138 [2020-09-24 18:19:03,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:19:03,433 INFO L225 Difference]: With dead ends: 511 [2020-09-24 18:19:03,433 INFO L226 Difference]: Without dead ends: 286 [2020-09-24 18:19:03,434 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2020-09-24 18:19:03,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2020-09-24 18:19:03,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 283. [2020-09-24 18:19:03,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 283 states. [2020-09-24 18:19:03,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 314 transitions. [2020-09-24 18:19:03,464 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 314 transitions. Word has length 138 [2020-09-24 18:19:03,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:19:03,465 INFO L479 AbstractCegarLoop]: Abstraction has 283 states and 314 transitions. [2020-09-24 18:19:03,465 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 18:19:03,465 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 314 transitions. [2020-09-24 18:19:03,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2020-09-24 18:19:03,468 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:19:03,469 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 18:19:03,469 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 18:19:03,469 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:19:03,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:19:03,470 INFO L82 PathProgramCache]: Analyzing trace with hash 1665265261, now seen corresponding path program 1 times [2020-09-24 18:19:03,470 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:19:03,470 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1151020989] [2020-09-24 18:19:03,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:19:03,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:19:03,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:19:03,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:19:03,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:19:08,530 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:19:08,530 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-09-24 18:19:08,531 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 18:19:08,531 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5017 [2020-09-24 18:19:08,531 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:19:08,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-24 18:19:08,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 83 [2020-09-24 18:19:08,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-09-24 18:19:08,532 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:19:08,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:19:08,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:19:08,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:19:08,631 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:19:08,631 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 18:19:08,631 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:19:08,632 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 18:19:08,632 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:19:08,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:19:08,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:19:08,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:19:08,633 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:19:08,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 18:19:08,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:19:08,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:19:08,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:19:08,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:19:08,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:19:08,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:19:08,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:19:08,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:19:08,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:19:08,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:19:08,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:19:08,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-24 18:19:08,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:19:08,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:19:08,676 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:19:08,676 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 18:19:08,676 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:19:08,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-24 18:19:08,677 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:19:08,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:19:08,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:19:08,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:19:08,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:19:08,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 18:19:08,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:19:08,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:19:08,693 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:19:08,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 18:19:08,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:19:08,693 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 18:19:08,694 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:19:08,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:19:08,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:19:08,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:19:08,695 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:19:08,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 18:19:08,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:19:08,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:19:08,715 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:19:08,715 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 18:19:08,715 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:19:08,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-24 18:19:08,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:19:08,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:19:08,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:19:08,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:19:08,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:19:08,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 18:19:08,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:19:08,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:19:08,727 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:19:08,727 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 18:19:08,728 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:19:08,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 18:19:08,728 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:19:08,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:19:08,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:19:08,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:19:08,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:19:08,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-09-24 18:19:08,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:19:08,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:19:08,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:19:09,266 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:19:09,266 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-09-24 18:19:09,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 18:19:09,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 501 [2020-09-24 18:19:09,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:19:09,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 18:19:09,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:19:09,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-09-24 18:19:09,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:19:09,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 18:19:09,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:19:09,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:19:09,297 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:19:09,297 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 18:19:09,297 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:19:09,297 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 18:19:09,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:19:09,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:19:09,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:19:09,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:19:09,298 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:19:09,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-24 18:19:09,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:19:09,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:19:09,440 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:19:09,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-09-24 18:19:09,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:19:09,441 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 131 [2020-09-24 18:19:09,441 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:19:09,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 18:19:09,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:19:09,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-09-24 18:19:09,442 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:19:09,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 18:19:09,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:19:09,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:19:09,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:19:09,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-24 18:19:09,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:19:09,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-09-24 18:19:09,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:19:09,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 18:19:09,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:19:09,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-09-24 18:19:09,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:19:09,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 18:19:09,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:19:09,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:19:09,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:19:10,812 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:19:10,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-09-24 18:19:10,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 18:19:10,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1117 [2020-09-24 18:19:10,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:19:10,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 18:19:10,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 18:19:10,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-09-24 18:19:10,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:19:10,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 18:19:10,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:19:10,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:19:10,957 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:19:10,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 18:19:10,958 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:19:10,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-09-24 18:19:10,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:19:10,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 18:19:10,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:19:10,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-24 18:19:10,960 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:19:11,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-24 18:19:11,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:19:11,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:19:11,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:19:11,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-09-24 18:19:11,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:19:11,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-09-24 18:19:11,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:19:11,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:19:11,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:19:11,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-09-24 18:19:11,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:19:11,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 18:19:11,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:19:11,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:19:11,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:19:11,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-24 18:19:11,098 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:19:11,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-24 18:19:11,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:19:11,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:19:11,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:19:11,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:19:11,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:19:11,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-24 18:19:11,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:19:11,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:19:11,127 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:19:11,127 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 18:19:11,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:19:11,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 18:19:11,128 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:19:11,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:19:11,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-24 18:19:11,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:19:11,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:19:11,207 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 22 proven. 47 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2020-09-24 18:19:11,208 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1151020989] [2020-09-24 18:19:11,208 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 18:19:11,209 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-09-24 18:19:11,210 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269348657] [2020-09-24 18:19:11,210 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-09-24 18:19:11,211 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:19:11,211 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-09-24 18:19:11,212 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2020-09-24 18:19:11,212 INFO L87 Difference]: Start difference. First operand 283 states and 314 transitions. Second operand 16 states. [2020-09-24 18:19:15,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:19:15,746 INFO L93 Difference]: Finished difference Result 782 states and 861 transitions. [2020-09-24 18:19:15,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2020-09-24 18:19:15,747 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 144 [2020-09-24 18:19:15,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:19:15,752 INFO L225 Difference]: With dead ends: 782 [2020-09-24 18:19:15,752 INFO L226 Difference]: Without dead ends: 508 [2020-09-24 18:19:15,755 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 638 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=509, Invalid=2247, Unknown=0, NotChecked=0, Total=2756 [2020-09-24 18:19:15,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 508 states. [2020-09-24 18:19:15,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 508 to 354. [2020-09-24 18:19:15,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 354 states. [2020-09-24 18:19:15,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354 states to 354 states and 386 transitions. [2020-09-24 18:19:15,792 INFO L78 Accepts]: Start accepts. Automaton has 354 states and 386 transitions. Word has length 144 [2020-09-24 18:19:15,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:19:15,793 INFO L479 AbstractCegarLoop]: Abstraction has 354 states and 386 transitions. [2020-09-24 18:19:15,793 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-09-24 18:19:15,793 INFO L276 IsEmpty]: Start isEmpty. Operand 354 states and 386 transitions. [2020-09-24 18:19:15,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2020-09-24 18:19:15,795 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:19:15,796 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 18:19:15,796 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 18:19:15,796 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:19:15,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:19:15,797 INFO L82 PathProgramCache]: Analyzing trace with hash 203347141, now seen corresponding path program 1 times [2020-09-24 18:19:15,797 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:19:15,797 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [734952752] [2020-09-24 18:19:15,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:19:15,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-24 18:19:15,848 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-24 18:19:15,848 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-24 18:19:15,854 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 18:19:15,885 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 06:19:15 BoogieIcfgContainer [2020-09-24 18:19:15,885 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 18:19:15,887 INFO L168 Benchmark]: Toolchain (without parser) took 22854.04 ms. Allocated memory was 140.0 MB in the beginning and 469.2 MB in the end (delta: 329.3 MB). Free memory was 100.7 MB in the beginning and 290.5 MB in the end (delta: -189.8 MB). Peak memory consumption was 139.5 MB. Max. memory is 7.1 GB. [2020-09-24 18:19:15,888 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 140.0 MB. Free memory was 120.2 MB in the beginning and 119.8 MB in the end (delta: 419.5 kB). Peak memory consumption was 419.5 kB. Max. memory is 7.1 GB. [2020-09-24 18:19:15,891 INFO L168 Benchmark]: CACSL2BoogieTranslator took 826.17 ms. Allocated memory was 140.0 MB in the beginning and 202.9 MB in the end (delta: 62.9 MB). Free memory was 99.9 MB in the beginning and 164.0 MB in the end (delta: -64.2 MB). Peak memory consumption was 24.1 MB. Max. memory is 7.1 GB. [2020-09-24 18:19:15,894 INFO L168 Benchmark]: Boogie Preprocessor took 95.54 ms. Allocated memory is still 202.9 MB. Free memory was 164.0 MB in the beginning and 160.2 MB in the end (delta: 3.8 MB). Peak memory consumption was 3.8 MB. Max. memory is 7.1 GB. [2020-09-24 18:19:15,898 INFO L168 Benchmark]: RCFGBuilder took 920.27 ms. Allocated memory is still 202.9 MB. Free memory was 160.2 MB in the beginning and 92.1 MB in the end (delta: 68.1 MB). Peak memory consumption was 68.1 MB. Max. memory is 7.1 GB. [2020-09-24 18:19:15,899 INFO L168 Benchmark]: TraceAbstraction took 21000.76 ms. Allocated memory was 202.9 MB in the beginning and 469.2 MB in the end (delta: 266.3 MB). Free memory was 91.7 MB in the beginning and 290.5 MB in the end (delta: -198.8 MB). Peak memory consumption was 67.5 MB. Max. memory is 7.1 GB. [2020-09-24 18:19:15,909 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 140.0 MB. Free memory was 120.2 MB in the beginning and 119.8 MB in the end (delta: 419.5 kB). Peak memory consumption was 419.5 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 826.17 ms. Allocated memory was 140.0 MB in the beginning and 202.9 MB in the end (delta: 62.9 MB). Free memory was 99.9 MB in the beginning and 164.0 MB in the end (delta: -64.2 MB). Peak memory consumption was 24.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 95.54 ms. Allocated memory is still 202.9 MB. Free memory was 164.0 MB in the beginning and 160.2 MB in the end (delta: 3.8 MB). Peak memory consumption was 3.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 920.27 ms. Allocated memory is still 202.9 MB. Free memory was 160.2 MB in the beginning and 92.1 MB in the end (delta: 68.1 MB). Peak memory consumption was 68.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 21000.76 ms. Allocated memory was 202.9 MB in the beginning and 469.2 MB in the end (delta: 266.3 MB). Free memory was 91.7 MB in the beginning and 290.5 MB in the end (delta: -198.8 MB). Peak memory consumption was 67.5 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: 20.8s, OverallIterations: 5, TraceHistogramMax: 5, AutomataDifference: 8.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 803 SDtfs, 1705 SDslu, 630 SDs, 0 SdLazy, 3905 SolverSat, 430 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 201 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 744 ImplicationChecksByTransitivity, 3.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=354occurred 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: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 243 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 11.4s InterpolantComputationTime, 540 NumberOfCodeBlocks, 540 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 401 ConstructedInterpolants, 0 QuantifiedInterpolants, 180789 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 244/293 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...