/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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.8 --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 [2020-09-25 07:50:20,439 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 07:50:20,443 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 07:50:20,468 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 07:50:20,469 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 07:50:20,470 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 07:50:20,472 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 07:50:20,473 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 07:50:20,475 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 07:50:20,476 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 07:50:20,477 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 07:50:20,479 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 07:50:20,479 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 07:50:20,480 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 07:50:20,481 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 07:50:20,482 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 07:50:20,483 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 07:50:20,484 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 07:50:20,486 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 07:50:20,488 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 07:50:20,490 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 07:50:20,491 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 07:50:20,492 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 07:50:20,493 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 07:50:20,496 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 07:50:20,496 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 07:50:20,496 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 07:50:20,497 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 07:50:20,497 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 07:50:20,499 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 07:50:20,499 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 07:50:20,500 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 07:50:20,501 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 07:50:20,502 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 07:50:20,503 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 07:50:20,503 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 07:50:20,504 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 07:50:20,504 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 07:50:20,504 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 07:50:20,506 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 07:50:20,506 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 07:50:20,507 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 [2020-09-25 07:50:20,547 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 07:50:20,547 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 07:50:20,554 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 07:50:20,554 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 07:50:20,554 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 07:50:20,555 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 07:50:20,555 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 07:50:20,555 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 07:50:20,555 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 07:50:20,555 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 07:50:20,556 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 07:50:20,556 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 07:50:20,556 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 07:50:20,556 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 07:50:20,556 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 07:50:20,557 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 07:50:20,558 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 07:50:20,558 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 07:50:20,558 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 07:50:20,559 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 07:50:20,559 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 07:50:20,559 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 07:50:20,559 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 07:50:20,559 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 07:50:20,560 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 07:50:20,560 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 07:50:20,561 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 07:50:20,561 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 07:50:20,561 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 07:50:20,561 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=WIDESTAMONGSMALL;tolerance=0.8;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=WIDESTAMONGSMALL;tolerance=0.8;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=WIDESTAMONGSMALL;tolerance=0.8;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=WIDESTAMONGSMALL;tolerance=0.8;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=WIDESTAMONGSMALL;tolerance=0.8;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=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; [2020-09-25 07:50:21,051 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 07:50:21,076 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 07:50:21,081 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 07:50:21,083 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 07:50:21,085 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 07:50:21,086 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-sets/test_mutex_double_lock.i [2020-09-25 07:50:21,176 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8c2047c88/983f9394a6bf4940a725fea50c86930c/FLAGc796f155d [2020-09-25 07:50:21,784 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 07:50:21,785 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-sets/test_mutex_double_lock.i [2020-09-25 07:50:21,808 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8c2047c88/983f9394a6bf4940a725fea50c86930c/FLAGc796f155d [2020-09-25 07:50:22,035 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8c2047c88/983f9394a6bf4940a725fea50c86930c [2020-09-25 07:50:22,047 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 07:50:22,052 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 07:50:22,053 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 07:50:22,053 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 07:50:22,057 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 07:50:22,059 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:50:22" (1/1) ... [2020-09-25 07:50:22,063 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e5a69aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:50:22, skipping insertion in model container [2020-09-25 07:50:22,063 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:50:22" (1/1) ... [2020-09-25 07:50:22,072 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 07:50:22,128 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 07:50:22,660 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 07:50:22,673 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 07:50:22,740 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 07:50:22,827 INFO L208 MainTranslator]: Completed translation [2020-09-25 07:50:22,828 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:50:22 WrapperNode [2020-09-25 07:50:22,828 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 07:50:22,829 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 07:50:22,829 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 07:50:22,829 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 07:50:22,845 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:50:22" (1/1) ... [2020-09-25 07:50:22,845 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:50:22" (1/1) ... [2020-09-25 07:50:22,866 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:50:22" (1/1) ... [2020-09-25 07:50:22,867 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:50:22" (1/1) ... [2020-09-25 07:50:22,890 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:50:22" (1/1) ... [2020-09-25 07:50:22,899 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:50:22" (1/1) ... [2020-09-25 07:50:22,903 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:50:22" (1/1) ... [2020-09-25 07:50:22,916 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 07:50:22,917 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 07:50:22,917 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 07:50:22,917 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 07:50:22,922 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:50:22" (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 [2020-09-25 07:50:22,999 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 07:50:23,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 07:50:23,000 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-09-25 07:50:23,000 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-09-25 07:50:23,000 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-25 07:50:23,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-09-25 07:50:23,001 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_successful_malloc [2020-09-25 07:50:23,001 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2020-09-25 07:50:23,001 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2020-09-25 07:50:23,001 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2020-09-25 07:50:23,001 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2020-09-25 07:50:23,002 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2020-09-25 07:50:23,002 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2020-09-25 07:50:23,002 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_empty [2020-09-25 07:50:23,002 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_set [2020-09-25 07:50:23,002 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_add [2020-09-25 07:50:23,003 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_del [2020-09-25 07:50:23,003 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_in_set [2020-09-25 07:50:23,003 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_empty [2020-09-25 07:50:23,003 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-09-25 07:50:23,004 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2020-09-25 07:50:23,004 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2020-09-25 07:50:23,004 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-09-25 07:50:23,004 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2020-09-25 07:50:23,004 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 07:50:23,005 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-09-25 07:50:23,005 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-09-25 07:50:23,005 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-09-25 07:50:23,005 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-09-25 07:50:23,005 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-09-25 07:50:23,005 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-09-25 07:50:23,006 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-09-25 07:50:23,006 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-09-25 07:50:23,006 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-09-25 07:50:23,006 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-09-25 07:50:23,006 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-09-25 07:50:23,007 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-09-25 07:50:23,007 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-09-25 07:50:23,007 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-09-25 07:50:23,007 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-09-25 07:50:23,007 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-09-25 07:50:23,007 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-09-25 07:50:23,008 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-09-25 07:50:23,008 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-09-25 07:50:23,008 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-09-25 07:50:23,008 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-09-25 07:50:23,008 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-09-25 07:50:23,008 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-09-25 07:50:23,009 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-09-25 07:50:23,009 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-09-25 07:50:23,009 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-09-25 07:50:23,009 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-09-25 07:50:23,009 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-09-25 07:50:23,009 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-09-25 07:50:23,010 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-09-25 07:50:23,010 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-09-25 07:50:23,010 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-09-25 07:50:23,010 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-09-25 07:50:23,010 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-09-25 07:50:23,010 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-09-25 07:50:23,011 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-09-25 07:50:23,011 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-09-25 07:50:23,011 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-09-25 07:50:23,011 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-09-25 07:50:23,011 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-09-25 07:50:23,011 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-09-25 07:50:23,012 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-09-25 07:50:23,012 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-09-25 07:50:23,012 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-09-25 07:50:23,012 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-09-25 07:50:23,012 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-09-25 07:50:23,012 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-09-25 07:50:23,013 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-09-25 07:50:23,013 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-09-25 07:50:23,013 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-09-25 07:50:23,013 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-09-25 07:50:23,013 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-09-25 07:50:23,013 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 07:50:23,014 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-09-25 07:50:23,014 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-09-25 07:50:23,014 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 07:50:23,014 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-09-25 07:50:23,014 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-09-25 07:50:23,014 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-09-25 07:50:23,015 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-09-25 07:50:23,015 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-25 07:50:23,015 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-09-25 07:50:23,015 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-09-25 07:50:23,015 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-09-25 07:50:23,015 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-09-25 07:50:23,016 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-09-25 07:50:23,016 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-09-25 07:50:23,016 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-09-25 07:50:23,016 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-09-25 07:50:23,016 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-09-25 07:50:23,016 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-09-25 07:50:23,017 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-09-25 07:50:23,017 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-09-25 07:50:23,017 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-09-25 07:50:23,017 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-09-25 07:50:23,017 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-09-25 07:50:23,017 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-09-25 07:50:23,017 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-09-25 07:50:23,018 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-09-25 07:50:23,018 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-09-25 07:50:23,018 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-09-25 07:50:23,018 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-09-25 07:50:23,018 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-09-25 07:50:23,018 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-09-25 07:50:23,019 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-09-25 07:50:23,019 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-09-25 07:50:23,019 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-09-25 07:50:23,019 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-09-25 07:50:23,019 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-09-25 07:50:23,019 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-09-25 07:50:23,019 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-09-25 07:50:23,020 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-09-25 07:50:23,020 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-09-25 07:50:23,020 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-09-25 07:50:23,020 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-09-25 07:50:23,020 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-09-25 07:50:23,023 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-09-25 07:50:23,023 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-09-25 07:50:23,023 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-09-25 07:50:23,023 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-09-25 07:50:23,024 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-09-25 07:50:23,024 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-09-25 07:50:23,024 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 07:50:23,024 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-25 07:50:23,024 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 07:50:23,025 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-09-25 07:50:23,025 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 07:50:23,025 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_successful_malloc [2020-09-25 07:50:23,025 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2020-09-25 07:50:23,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 07:50:23,025 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2020-09-25 07:50:23,026 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2020-09-25 07:50:23,026 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2020-09-25 07:50:23,026 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 07:50:23,026 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2020-09-25 07:50:23,026 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2020-09-25 07:50:23,026 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_empty [2020-09-25 07:50:23,027 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_set [2020-09-25 07:50:23,027 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_add [2020-09-25 07:50:23,027 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_del [2020-09-25 07:50:23,027 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_in_set [2020-09-25 07:50:23,027 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_empty [2020-09-25 07:50:23,027 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 07:50:23,028 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-09-25 07:50:23,028 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2020-09-25 07:50:23,028 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2020-09-25 07:50:23,028 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-09-25 07:50:23,028 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2020-09-25 07:50:23,028 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 07:50:23,029 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 07:50:23,029 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 07:50:23,029 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-09-25 07:50:23,029 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 07:50:23,868 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 07:50:23,868 INFO L295 CfgBuilder]: Removed 2 assume(true) statements. [2020-09-25 07:50:23,874 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:50:23 BoogieIcfgContainer [2020-09-25 07:50:23,875 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 07:50:23,876 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 07:50:23,876 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 07:50:23,880 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 07:50:23,881 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 07:50:22" (1/3) ... [2020-09-25 07:50:23,882 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@399be49b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:50:23, skipping insertion in model container [2020-09-25 07:50:23,882 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:50:22" (2/3) ... [2020-09-25 07:50:23,882 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@399be49b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:50:23, skipping insertion in model container [2020-09-25 07:50:23,883 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:50:23" (3/3) ... [2020-09-25 07:50:23,885 INFO L109 eAbstractionObserver]: Analyzing ICFG test_mutex_double_lock.i [2020-09-25 07:50:23,898 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 07:50:23,910 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-09-25 07:50:23,935 INFO L251 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-09-25 07:50:23,971 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 07:50:23,971 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 07:50:23,971 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 07:50:23,971 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 07:50:23,972 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 07:50:23,972 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 07:50:23,972 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 07:50:23,972 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 07:50:24,022 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states. [2020-09-25 07:50:24,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-09-25 07:50:24,033 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:50:24,034 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] [2020-09-25 07:50:24,035 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:50:24,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:50:24,044 INFO L82 PathProgramCache]: Analyzing trace with hash 899835465, now seen corresponding path program 1 times [2020-09-25 07:50:24,055 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:50:24,056 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1427585603] [2020-09-25 07:50:24,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:50:24,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:50:24,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:24,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:50:24,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-09-25 07:50:24,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:50:24,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 437 [2020-09-25 07:50:24,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:50:24,706 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:50:24,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 07:50:24,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 76 [2020-09-25 07:50:24,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 07:50:24,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 07:50:24,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:50:24,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:50:24,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:24,867 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:50:24,867 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 07:50:24,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:50:24,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-25 07:50:24,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:50:24,868 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:50:24,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:50:24,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:50:24,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:50:24,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:50:24,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 07:50:24,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:50:24,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:24,886 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:50:24,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:50:24,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:50:24,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 07:50:24,887 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:50:24,887 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:50:24,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:50:24,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:50:24,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:50:24,888 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:50:24,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 07:50:24,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:50:24,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:24,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:50:24,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 07:50:24,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:50:24,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-25 07:50:24,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:50:24,931 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:50:24,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:50:24,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:50:24,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:50:24,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:50:24,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:50:24,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:50:24,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:24,950 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:50:24,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 07:50:24,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:50:24,951 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 07:50:24,951 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:50:24,951 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:50:24,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:50:24,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:50:24,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:50:24,952 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:50:24,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 07:50:24,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:50:24,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:24,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:50:24,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 07:50:24,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:50:24,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-25 07:50:24,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:50:24,981 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:50:24,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:50:24,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:50:24,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:50:24,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:50:24,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:50:24,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:50:24,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:25,000 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:50:25,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 07:50:25,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:50:25,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 07:50:25,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:50:25,001 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:50:25,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:50:25,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:50:25,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:50:25,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:50:25,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-25 07:50:25,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:50:25,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:25,064 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:50:25,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 07:50:25,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:50:25,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-09-25 07:50:25,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:50:25,065 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:50:25,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 07:50:25,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:50:25,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 07:50:25,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:50:25,095 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-09-25 07:50:25,096 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1427585603] [2020-09-25 07:50:25,098 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:50:25,098 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 07:50:25,099 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035646307] [2020-09-25 07:50:25,107 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 07:50:25,107 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:50:25,125 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 07:50:25,126 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-25 07:50:25,129 INFO L87 Difference]: Start difference. First operand 182 states. Second operand 6 states. [2020-09-25 07:50:26,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:50:26,076 INFO L93 Difference]: Finished difference Result 367 states and 421 transitions. [2020-09-25 07:50:26,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 07:50:26,079 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 60 [2020-09-25 07:50:26,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:50:26,107 INFO L225 Difference]: With dead ends: 367 [2020-09-25 07:50:26,107 INFO L226 Difference]: Without dead ends: 192 [2020-09-25 07:50:26,118 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 [2020-09-25 07:50:26,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2020-09-25 07:50:26,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 172. [2020-09-25 07:50:26,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 172 states. [2020-09-25 07:50:26,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 184 transitions. [2020-09-25 07:50:26,252 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 184 transitions. Word has length 60 [2020-09-25 07:50:26,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:50:26,253 INFO L479 AbstractCegarLoop]: Abstraction has 172 states and 184 transitions. [2020-09-25 07:50:26,254 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 07:50:26,254 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 184 transitions. [2020-09-25 07:50:26,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-09-25 07:50:26,257 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:50:26,257 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] [2020-09-25 07:50:26,258 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 07:50:26,258 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:50:26,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:50:26,259 INFO L82 PathProgramCache]: Analyzing trace with hash -1713006157, now seen corresponding path program 1 times [2020-09-25 07:50:26,259 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:50:26,259 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2055364308] [2020-09-25 07:50:26,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:50:26,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:50:26,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:26,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:50:26,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 07:50:26,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:50:26,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 609 [2020-09-25 07:50:26,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:50:26,901 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:50:26,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 07:50:26,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-09-25 07:50:26,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-09-25 07:50:26,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:50:26,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:50:26,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:50:26,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:27,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:50:27,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 07:50:27,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:50:27,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-25 07:50:27,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:50:27,015 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:50:27,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:50:27,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:50:27,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 07:50:27,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:50:27,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 07:50:27,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:50:27,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:27,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:50:27,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:50:27,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:50:27,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 07:50:27,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:50:27,038 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:50:27,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:50:27,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:50:27,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 07:50:27,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:50:27,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 07:50:27,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:50:27,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:27,091 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:50:27,092 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 07:50:27,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:50:27,092 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-25 07:50:27,093 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:50:27,093 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:50:27,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:50:27,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:50:27,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 07:50:27,094 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:50:27,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:50:27,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:50:27,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:27,111 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:50:27,111 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 07:50:27,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:50:27,112 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 07:50:27,112 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:50:27,112 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:50:27,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:50:27,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:50:27,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:50:27,113 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:50:27,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 07:50:27,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:50:27,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:27,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:50:27,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 07:50:27,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:50:27,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-25 07:50:27,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:50:27,156 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:50:27,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:50:27,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:50:27,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 07:50:27,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:50:27,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:50:27,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:50:27,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:27,172 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:50:27,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 07:50:27,173 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:50:27,173 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 07:50:27,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:50:27,173 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:50:27,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:50:27,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:50:27,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:50:27,174 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:50:27,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-25 07:50:27,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:50:27,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:27,292 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:50:27,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-25 07:50:27,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:50:27,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 108 [2020-09-25 07:50:27,293 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:50:27,293 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:50:27,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 07:50:27,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-25 07:50:27,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 07:50:27,294 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:50:27,541 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-09-25 07:50:27,541 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2055364308] [2020-09-25 07:50:27,541 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:50:27,542 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 07:50:27,542 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435757517] [2020-09-25 07:50:27,544 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 07:50:27,544 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:50:27,545 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 07:50:27,545 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-09-25 07:50:27,545 INFO L87 Difference]: Start difference. First operand 172 states and 184 transitions. Second operand 10 states. [2020-09-25 07:50:27,909 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 56 [2020-09-25 07:50:28,242 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 67 [2020-09-25 07:50:28,810 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2020-09-25 07:50:29,081 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 61 [2020-09-25 07:50:30,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:50:30,048 INFO L93 Difference]: Finished difference Result 494 states and 552 transitions. [2020-09-25 07:50:30,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-09-25 07:50:30,049 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 63 [2020-09-25 07:50:30,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:50:30,055 INFO L225 Difference]: With dead ends: 494 [2020-09-25 07:50:30,055 INFO L226 Difference]: Without dead ends: 343 [2020-09-25 07:50:30,058 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 [2020-09-25 07:50:30,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2020-09-25 07:50:30,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 277. [2020-09-25 07:50:30,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 277 states. [2020-09-25 07:50:30,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 308 transitions. [2020-09-25 07:50:30,098 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 308 transitions. Word has length 63 [2020-09-25 07:50:30,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:50:30,098 INFO L479 AbstractCegarLoop]: Abstraction has 277 states and 308 transitions. [2020-09-25 07:50:30,098 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 07:50:30,099 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 308 transitions. [2020-09-25 07:50:30,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2020-09-25 07:50:30,101 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:50:30,102 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] [2020-09-25 07:50:30,102 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 07:50:30,102 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:50:30,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:50:30,103 INFO L82 PathProgramCache]: Analyzing trace with hash 2101448545, now seen corresponding path program 1 times [2020-09-25 07:50:30,103 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:50:30,103 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [96655993] [2020-09-25 07:50:30,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:50:30,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:50:30,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:30,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:31,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:50:31,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 177 [2020-09-25 07:50:31,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 07:50:31,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 913 [2020-09-25 07:50:31,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:50:31,057 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:50:31,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 07:50:31,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 98 [2020-09-25 07:50:31,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 07:50:31,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:50:31,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:50:31,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:50:31,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:31,122 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:50:31,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 07:50:31,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:50:31,123 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 07:50:31,123 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:50:31,123 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:50:31,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:50:31,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:50:31,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:50:31,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:50:31,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 07:50:31,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:50:31,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:31,133 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:50:31,134 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:50:31,134 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:50:31,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:50:31,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:50:31,135 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:50:31,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:50:31,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:50:31,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:50:31,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:50:31,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 07:50:31,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:50:31,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:31,159 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:50:31,160 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 07:50:31,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:50:31,160 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 07:50:31,160 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:50:31,161 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:50:31,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:50:31,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:50:31,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:50:31,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:50:31,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:50:31,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:50:31,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:31,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:50:31,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 07:50:31,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:50:31,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 07:50:31,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:50:31,175 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:50:31,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:50:31,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:50:31,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:50:31,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:50:31,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 07:50:31,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:50:31,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:31,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:50:31,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 07:50:31,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:50:31,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 07:50:31,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:50:31,195 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:50:31,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:50:31,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:50:31,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:50:31,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:50:31,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:50:31,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:50:31,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:31,208 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:50:31,208 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 07:50:31,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:50:31,208 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 07:50:31,208 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:50:31,209 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:50:31,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:50:31,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:50:31,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:50:31,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:50:31,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-09-25 07:50:31,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:50:31,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:31,321 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:50:31,321 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-25 07:50:31,321 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:50:31,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-09-25 07:50:31,322 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:50:31,322 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:50:31,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 07:50:31,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-09-25 07:50:31,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 07:50:31,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:50:31,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 07:50:31,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:50:31,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:31,345 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:50:31,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 07:50:31,346 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:50:31,346 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 07:50:31,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:50:31,347 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:50:31,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:50:31,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:50:31,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:50:31,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:50:31,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-25 07:50:31,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:50:31,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:31,404 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:50:31,404 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 07:50:31,404 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:50:31,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-09-25 07:50:31,405 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:50:31,405 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:50:31,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 07:50:31,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 07:50:31,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 07:50:31,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:50:31,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 07:50:31,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:50:31,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:31,497 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:50:31,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 07:50:31,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:50:31,498 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-25 07:50:31,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:50:31,499 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:50:31,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 07:50:31,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:50:31,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 07:50:31,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:50:31,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-09-25 07:50:31,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:50:31,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:31,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:31,645 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:50:31,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-25 07:50:31,645 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 07:50:31,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 120 [2020-09-25 07:50:31,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:50:31,646 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:50:31,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:50:31,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 47 [2020-09-25 07:50:31,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:50:31,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:50:31,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 07:50:31,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:50:31,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:31,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:50:31,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 07:50:31,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:50:31,668 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 07:50:31,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:50:31,668 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:50:31,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:50:31,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:50:31,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:50:31,669 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:50:31,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-25 07:50:31,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:50:31,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:31,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:31,740 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:50:31,740 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 07:50:31,740 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 07:50:31,741 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-09-25 07:50:31,741 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:50:31,741 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:50:31,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:50:31,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:50:31,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:50:31,742 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:50:31,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 07:50:31,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:50:31,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:31,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:50:31,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 07:50:31,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:50:31,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 07:50:31,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:50:31,760 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:50:31,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:50:31,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:50:31,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:50:31,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:50:31,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-09-25 07:50:31,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:50:31,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:31,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:50:31,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 07:50:31,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:50:31,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 07:50:31,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:50:31,782 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:50:31,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:50:31,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 07:50:31,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:50:31,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:50:31,806 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 2 proven. 13 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2020-09-25 07:50:31,807 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [96655993] [2020-09-25 07:50:31,807 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 07:50:31,807 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 07:50:31,808 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171595568] [2020-09-25 07:50:31,808 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 07:50:31,809 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:50:31,809 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 07:50:31,811 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-25 07:50:31,811 INFO L87 Difference]: Start difference. First operand 277 states and 308 transitions. Second operand 7 states. [2020-09-25 07:50:32,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:50:32,578 INFO L93 Difference]: Finished difference Result 511 states and 568 transitions. [2020-09-25 07:50:32,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 07:50:32,579 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 138 [2020-09-25 07:50:32,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:50:32,583 INFO L225 Difference]: With dead ends: 511 [2020-09-25 07:50:32,583 INFO L226 Difference]: Without dead ends: 286 [2020-09-25 07:50:32,586 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 [2020-09-25 07:50:32,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2020-09-25 07:50:32,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 283. [2020-09-25 07:50:32,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 283 states. [2020-09-25 07:50:32,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 314 transitions. [2020-09-25 07:50:32,632 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 314 transitions. Word has length 138 [2020-09-25 07:50:32,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:50:32,633 INFO L479 AbstractCegarLoop]: Abstraction has 283 states and 314 transitions. [2020-09-25 07:50:32,633 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 07:50:32,633 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 314 transitions. [2020-09-25 07:50:32,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2020-09-25 07:50:32,636 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:50:32,636 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] [2020-09-25 07:50:32,637 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 07:50:32,637 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:50:32,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:50:32,637 INFO L82 PathProgramCache]: Analyzing trace with hash 1665265261, now seen corresponding path program 1 times [2020-09-25 07:50:32,638 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:50:32,638 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1118690773] [2020-09-25 07:50:32,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:50:32,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:50:32,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:32,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:33,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:37,712 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:50:37,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-09-25 07:50:37,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 07:50:37,713 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5030 [2020-09-25 07:50:37,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:50:37,713 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:50:37,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 07:50:37,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-09-25 07:50:37,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-09-25 07:50:37,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:50:37,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:50:37,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:50:37,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:37,819 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:50:37,820 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 07:50:37,820 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:50:37,820 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-25 07:50:37,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:50:37,821 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:50:37,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:50:37,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:50:37,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 07:50:37,822 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:50:37,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 07:50:37,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:50:37,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:37,841 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:50:37,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:50:37,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:50:37,842 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 07:50:37,842 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:50:37,842 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:50:37,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:50:37,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:50:37,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 07:50:37,843 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:50:37,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 07:50:37,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:50:37,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:37,903 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:50:37,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 07:50:37,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:50:37,904 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-09-25 07:50:37,904 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:50:37,904 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:50:37,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:50:37,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:50:37,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 07:50:37,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:50:37,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:50:37,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:50:37,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:37,923 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:50:37,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 07:50:37,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:50:37,924 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 07:50:37,924 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:50:37,924 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:50:37,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:50:37,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:50:37,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:50:37,925 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:50:37,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 07:50:37,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:50:37,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:37,959 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:50:37,959 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 07:50:37,959 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:50:37,959 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-25 07:50:37,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:50:37,960 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:50:37,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:50:37,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:50:37,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 07:50:37,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:50:37,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:50:37,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:50:37,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:37,974 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:50:37,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 07:50:37,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:50:37,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 07:50:37,975 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:50:37,976 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:50:37,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:50:37,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:50:37,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:50:37,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:50:37,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-09-25 07:50:38,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:50:38,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:38,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:38,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:50:38,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-09-25 07:50:38,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 07:50:38,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 913 [2020-09-25 07:50:38,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:50:38,921 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:50:38,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 07:50:38,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 07:50:38,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-09-25 07:50:38,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:50:38,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 07:50:38,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:50:38,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:38,982 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:50:38,982 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 07:50:38,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:50:38,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-25 07:50:38,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:50:38,983 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:50:38,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:50:38,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:50:38,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-25 07:50:38,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:50:38,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-25 07:50:38,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:50:39,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:39,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:50:39,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-09-25 07:50:39,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:50:39,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 165 [2020-09-25 07:50:39,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:50:39,163 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:50:39,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 07:50:39,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 07:50:39,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 07:50:39,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:50:39,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 07:50:39,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:50:39,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:39,315 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:50:39,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-25 07:50:39,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:50:39,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-09-25 07:50:39,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:50:39,317 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:50:39,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 07:50:39,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:50:39,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-09-25 07:50:39,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:50:39,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 07:50:39,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:50:39,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:39,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:40,022 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:50:40,022 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-09-25 07:50:40,022 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 07:50:40,022 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 524 [2020-09-25 07:50:40,023 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:50:40,023 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:50:40,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:50:40,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 50 [2020-09-25 07:50:40,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:50:40,024 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:50:40,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 07:50:40,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:50:40,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:40,040 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:50:40,040 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 07:50:40,040 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:50:40,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 07:50:40,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:50:40,041 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:50:40,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:50:40,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:50:40,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:50:40,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:50:40,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-25 07:50:40,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:50:40,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:40,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:50:40,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-09-25 07:50:40,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:50:40,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 07:50:40,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:50:40,065 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:50:40,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:50:40,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:50:40,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:50:40,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:50:40,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 07:50:40,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:50:40,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:40,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:50:40,083 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-25 07:50:40,083 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:50:40,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 07:50:40,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:50:40,084 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:50:40,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:50:40,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:50:40,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:50:40,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:50:40,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-25 07:50:40,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:50:40,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:40,103 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:50:40,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 07:50:40,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:50:40,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 07:50:40,104 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:50:40,104 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:50:40,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:50:40,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 07:50:40,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:50:40,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:50:40,156 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 8 proven. 42 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2020-09-25 07:50:40,156 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1118690773] [2020-09-25 07:50:40,157 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 07:50:40,157 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-09-25 07:50:40,158 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669505069] [2020-09-25 07:50:40,158 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-09-25 07:50:40,159 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:50:40,159 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-09-25 07:50:40,159 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2020-09-25 07:50:40,160 INFO L87 Difference]: Start difference. First operand 283 states and 314 transitions. Second operand 15 states. [2020-09-25 07:50:44,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:50:44,143 INFO L93 Difference]: Finished difference Result 695 states and 773 transitions. [2020-09-25 07:50:44,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2020-09-25 07:50:44,144 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 144 [2020-09-25 07:50:44,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:50:44,147 INFO L225 Difference]: With dead ends: 695 [2020-09-25 07:50:44,148 INFO L226 Difference]: Without dead ends: 394 [2020-09-25 07:50:44,150 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 685 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=499, Invalid=2153, Unknown=0, NotChecked=0, Total=2652 [2020-09-25 07:50:44,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2020-09-25 07:50:44,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 282. [2020-09-25 07:50:44,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 282 states. [2020-09-25 07:50:44,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 305 transitions. [2020-09-25 07:50:44,180 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 305 transitions. Word has length 144 [2020-09-25 07:50:44,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:50:44,181 INFO L479 AbstractCegarLoop]: Abstraction has 282 states and 305 transitions. [2020-09-25 07:50:44,181 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-09-25 07:50:44,181 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 305 transitions. [2020-09-25 07:50:44,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2020-09-25 07:50:44,183 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:50:44,184 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] [2020-09-25 07:50:44,184 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 07:50:44,184 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:50:44,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:50:44,185 INFO L82 PathProgramCache]: Analyzing trace with hash 203347141, now seen corresponding path program 1 times [2020-09-25 07:50:44,185 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:50:44,185 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [440482522] [2020-09-25 07:50:44,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:50:44,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 07:50:44,236 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 07:50:44,237 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 07:50:44,242 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 07:50:44,268 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 07:50:44 BoogieIcfgContainer [2020-09-25 07:50:44,269 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 07:50:44,271 INFO L168 Benchmark]: Toolchain (without parser) took 22222.11 ms. Allocated memory was 144.2 MB in the beginning and 446.7 MB in the end (delta: 302.5 MB). Free memory was 99.8 MB in the beginning and 287.8 MB in the end (delta: -188.0 MB). Peak memory consumption was 114.5 MB. Max. memory is 7.1 GB. [2020-09-25 07:50:44,272 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 144.2 MB. Free memory was 119.4 MB in the beginning and 119.2 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-09-25 07:50:44,273 INFO L168 Benchmark]: CACSL2BoogieTranslator took 775.82 ms. Allocated memory was 144.2 MB in the beginning and 201.9 MB in the end (delta: 57.7 MB). Free memory was 99.2 MB in the beginning and 163.4 MB in the end (delta: -64.2 MB). Peak memory consumption was 22.0 MB. Max. memory is 7.1 GB. [2020-09-25 07:50:44,274 INFO L168 Benchmark]: Boogie Preprocessor took 87.35 ms. Allocated memory is still 201.9 MB. Free memory was 163.4 MB in the beginning and 159.8 MB in the end (delta: 3.6 MB). Peak memory consumption was 3.6 MB. Max. memory is 7.1 GB. [2020-09-25 07:50:44,274 INFO L168 Benchmark]: RCFGBuilder took 958.13 ms. Allocated memory is still 201.9 MB. Free memory was 159.8 MB in the beginning and 91.1 MB in the end (delta: 68.7 MB). Peak memory consumption was 68.7 MB. Max. memory is 7.1 GB. [2020-09-25 07:50:44,275 INFO L168 Benchmark]: TraceAbstraction took 20392.59 ms. Allocated memory was 201.9 MB in the beginning and 446.7 MB in the end (delta: 244.8 MB). Free memory was 90.4 MB in the beginning and 287.8 MB in the end (delta: -197.5 MB). Peak memory consumption was 47.4 MB. Max. memory is 7.1 GB. [2020-09-25 07:50:44,280 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 144.2 MB. Free memory was 119.4 MB in the beginning and 119.2 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 775.82 ms. Allocated memory was 144.2 MB in the beginning and 201.9 MB in the end (delta: 57.7 MB). Free memory was 99.2 MB in the beginning and 163.4 MB in the end (delta: -64.2 MB). Peak memory consumption was 22.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 87.35 ms. Allocated memory is still 201.9 MB. Free memory was 163.4 MB in the beginning and 159.8 MB in the end (delta: 3.6 MB). Peak memory consumption was 3.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 958.13 ms. Allocated memory is still 201.9 MB. Free memory was 159.8 MB in the beginning and 91.1 MB in the end (delta: 68.7 MB). Peak memory consumption was 68.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 20392.59 ms. Allocated memory was 201.9 MB in the beginning and 446.7 MB in the end (delta: 244.8 MB). Free memory was 90.4 MB in the beginning and 287.8 MB in the end (delta: -197.5 MB). Peak memory consumption was 47.4 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: 20.2s, OverallIterations: 5, TraceHistogramMax: 5, AutomataDifference: 8.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 770 SDtfs, 1614 SDslu, 574 SDs, 0 SdLazy, 3364 SolverSat, 352 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 199 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 791 ImplicationChecksByTransitivity, 3.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=283occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 4 MinimizatonAttempts, 201 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 11.1s InterpolantComputationTime, 540 NumberOfCodeBlocks, 540 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 401 ConstructedInterpolants, 0 QuantifiedInterpolants, 179907 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 238/293 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...