/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --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 11:12:48,268 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 11:12:48,272 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 11:12:48,298 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 11:12:48,299 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 11:12:48,300 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 11:12:48,302 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 11:12:48,304 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 11:12:48,306 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 11:12:48,307 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 11:12:48,308 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 11:12:48,310 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 11:12:48,310 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 11:12:48,312 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 11:12:48,313 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 11:12:48,314 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 11:12:48,316 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 11:12:48,317 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 11:12:48,319 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 11:12:48,321 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 11:12:48,323 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 11:12:48,324 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 11:12:48,325 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 11:12:48,326 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 11:12:48,329 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 11:12:48,329 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 11:12:48,330 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 11:12:48,331 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 11:12:48,331 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 11:12:48,332 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 11:12:48,333 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 11:12:48,334 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 11:12:48,335 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 11:12:48,335 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 11:12:48,337 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 11:12:48,337 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 11:12:48,338 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 11:12:48,338 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 11:12:48,338 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 11:12:48,340 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 11:12:48,340 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 11:12:48,341 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 11:12:48,383 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 11:12:48,383 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 11:12:48,387 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 11:12:48,387 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 11:12:48,387 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 11:12:48,388 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 11:12:48,388 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 11:12:48,388 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 11:12:48,388 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 11:12:48,388 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 11:12:48,389 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 11:12:48,389 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 11:12:48,389 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 11:12:48,389 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 11:12:48,389 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 11:12:48,390 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 11:12:48,391 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 11:12:48,392 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 11:12:48,392 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 11:12:48,392 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 11:12:48,392 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 11:12:48,393 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 11:12:48,393 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 11:12:48,393 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 11:12:48,393 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 11:12:48,394 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 11:12:48,394 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 11:12:48,394 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 11:12:48,394 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 11:12:48,394 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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true; [2020-09-25 11:12:48,893 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 11:12:48,919 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 11:12:48,925 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 11:12:48,927 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 11:12:48,927 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 11:12:48,928 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-sets/test_mutex_double_lock.i [2020-09-25 11:12:49,025 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/66988af68/50da390b52144c87b2d5e823b98178a8/FLAG0271beeeb [2020-09-25 11:12:49,726 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 11:12:49,727 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-sets/test_mutex_double_lock.i [2020-09-25 11:12:49,742 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/66988af68/50da390b52144c87b2d5e823b98178a8/FLAG0271beeeb [2020-09-25 11:12:49,972 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/66988af68/50da390b52144c87b2d5e823b98178a8 [2020-09-25 11:12:49,986 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 11:12:49,993 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 11:12:49,994 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 11:12:49,994 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 11:12:50,000 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 11:12:50,001 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 11:12:49" (1/1) ... [2020-09-25 11:12:50,006 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b6a6a43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:12:50, skipping insertion in model container [2020-09-25 11:12:50,006 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 11:12:49" (1/1) ... [2020-09-25 11:12:50,016 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 11:12:50,085 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 11:12:50,670 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 11:12:50,686 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 11:12:50,745 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 11:12:50,823 INFO L208 MainTranslator]: Completed translation [2020-09-25 11:12:50,824 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:12:50 WrapperNode [2020-09-25 11:12:50,824 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 11:12:50,825 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 11:12:50,825 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 11:12:50,825 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 11:12:50,841 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:12:50" (1/1) ... [2020-09-25 11:12:50,841 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:12:50" (1/1) ... [2020-09-25 11:12:50,863 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:12:50" (1/1) ... [2020-09-25 11:12:50,863 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:12:50" (1/1) ... [2020-09-25 11:12:50,890 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:12:50" (1/1) ... [2020-09-25 11:12:50,897 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:12:50" (1/1) ... [2020-09-25 11:12:50,902 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:12:50" (1/1) ... [2020-09-25 11:12:50,910 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 11:12:50,911 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 11:12:50,911 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 11:12:50,911 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 11:12:50,914 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:12:50" (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 11:12:50,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 11:12:50,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 11:12:50,994 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-09-25 11:12:50,994 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-09-25 11:12:50,994 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-25 11:12:50,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-09-25 11:12:50,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_successful_malloc [2020-09-25 11:12:50,995 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2020-09-25 11:12:50,995 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2020-09-25 11:12:50,995 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2020-09-25 11:12:50,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2020-09-25 11:12:50,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2020-09-25 11:12:50,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2020-09-25 11:12:50,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_empty [2020-09-25 11:12:50,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_set [2020-09-25 11:12:50,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_add [2020-09-25 11:12:50,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_del [2020-09-25 11:12:50,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_in_set [2020-09-25 11:12:50,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_empty [2020-09-25 11:12:50,998 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-09-25 11:12:50,998 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2020-09-25 11:12:50,998 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2020-09-25 11:12:50,998 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-09-25 11:12:50,998 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2020-09-25 11:12:50,998 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 11:12:50,999 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-09-25 11:12:50,999 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-09-25 11:12:50,999 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-09-25 11:12:50,999 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-09-25 11:12:50,999 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-09-25 11:12:51,000 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-09-25 11:12:51,000 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-09-25 11:12:51,000 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-09-25 11:12:51,000 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-09-25 11:12:51,000 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-09-25 11:12:51,000 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-09-25 11:12:51,001 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-09-25 11:12:51,001 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-09-25 11:12:51,001 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-09-25 11:12:51,001 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-09-25 11:12:51,001 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-09-25 11:12:51,001 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-09-25 11:12:51,002 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-09-25 11:12:51,002 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-09-25 11:12:51,002 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-09-25 11:12:51,002 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-09-25 11:12:51,002 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-09-25 11:12:51,002 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-09-25 11:12:51,003 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-09-25 11:12:51,003 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-09-25 11:12:51,003 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-09-25 11:12:51,003 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-09-25 11:12:51,003 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-09-25 11:12:51,004 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-09-25 11:12:51,004 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-09-25 11:12:51,004 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-09-25 11:12:51,004 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-09-25 11:12:51,004 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-09-25 11:12:51,004 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-09-25 11:12:51,004 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-09-25 11:12:51,005 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-09-25 11:12:51,005 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-09-25 11:12:51,005 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-09-25 11:12:51,005 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-09-25 11:12:51,005 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-09-25 11:12:51,005 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-09-25 11:12:51,006 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-09-25 11:12:51,006 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-09-25 11:12:51,006 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-09-25 11:12:51,006 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-09-25 11:12:51,006 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-09-25 11:12:51,006 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-09-25 11:12:51,007 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-09-25 11:12:51,007 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-09-25 11:12:51,007 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-09-25 11:12:51,007 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-09-25 11:12:51,007 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-09-25 11:12:51,007 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 11:12:51,008 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-09-25 11:12:51,008 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-09-25 11:12:51,008 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 11:12:51,008 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-09-25 11:12:51,008 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-09-25 11:12:51,008 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-09-25 11:12:51,014 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-09-25 11:12:51,014 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-25 11:12:51,014 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-09-25 11:12:51,014 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-09-25 11:12:51,014 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-09-25 11:12:51,015 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-09-25 11:12:51,015 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-09-25 11:12:51,015 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-09-25 11:12:51,015 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-09-25 11:12:51,015 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-09-25 11:12:51,015 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-09-25 11:12:51,015 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-09-25 11:12:51,016 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-09-25 11:12:51,016 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-09-25 11:12:51,016 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-09-25 11:12:51,016 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-09-25 11:12:51,016 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-09-25 11:12:51,016 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-09-25 11:12:51,016 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-09-25 11:12:51,017 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-09-25 11:12:51,017 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-09-25 11:12:51,017 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-09-25 11:12:51,017 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-09-25 11:12:51,017 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-09-25 11:12:51,017 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-09-25 11:12:51,018 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-09-25 11:12:51,018 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-09-25 11:12:51,018 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-09-25 11:12:51,018 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-09-25 11:12:51,018 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-09-25 11:12:51,018 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-09-25 11:12:51,018 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-09-25 11:12:51,019 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-09-25 11:12:51,019 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-09-25 11:12:51,019 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-09-25 11:12:51,019 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-09-25 11:12:51,019 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-09-25 11:12:51,019 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-09-25 11:12:51,020 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-09-25 11:12:51,020 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-09-25 11:12:51,020 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-09-25 11:12:51,020 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-09-25 11:12:51,020 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-09-25 11:12:51,020 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 11:12:51,021 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-25 11:12:51,021 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 11:12:51,021 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-09-25 11:12:51,021 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 11:12:51,021 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_successful_malloc [2020-09-25 11:12:51,021 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2020-09-25 11:12:51,022 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 11:12:51,022 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2020-09-25 11:12:51,022 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2020-09-25 11:12:51,022 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2020-09-25 11:12:51,022 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 11:12:51,022 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2020-09-25 11:12:51,023 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2020-09-25 11:12:51,023 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_empty [2020-09-25 11:12:51,023 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_set [2020-09-25 11:12:51,023 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_add [2020-09-25 11:12:51,023 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_del [2020-09-25 11:12:51,023 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_in_set [2020-09-25 11:12:51,024 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_empty [2020-09-25 11:12:51,024 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 11:12:51,024 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-09-25 11:12:51,024 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2020-09-25 11:12:51,024 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2020-09-25 11:12:51,024 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-09-25 11:12:51,025 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2020-09-25 11:12:51,025 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 11:12:51,025 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 11:12:51,025 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 11:12:51,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-09-25 11:12:51,025 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 11:12:51,891 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 11:12:51,891 INFO L295 CfgBuilder]: Removed 2 assume(true) statements. [2020-09-25 11:12:51,897 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 11:12:51 BoogieIcfgContainer [2020-09-25 11:12:51,898 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 11:12:51,899 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 11:12:51,899 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 11:12:51,904 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 11:12:51,904 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 11:12:49" (1/3) ... [2020-09-25 11:12:51,905 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7beb792b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 11:12:51, skipping insertion in model container [2020-09-25 11:12:51,905 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:12:50" (2/3) ... [2020-09-25 11:12:51,906 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7beb792b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 11:12:51, skipping insertion in model container [2020-09-25 11:12:51,906 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 11:12:51" (3/3) ... [2020-09-25 11:12:51,908 INFO L109 eAbstractionObserver]: Analyzing ICFG test_mutex_double_lock.i [2020-09-25 11:12:51,921 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 11:12:51,933 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-09-25 11:12:51,973 INFO L251 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-09-25 11:12:52,002 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 11:12:52,002 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 11:12:52,002 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 11:12:52,002 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 11:12:52,003 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 11:12:52,003 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 11:12:52,003 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 11:12:52,003 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 11:12:52,030 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states. [2020-09-25 11:12:52,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-09-25 11:12:52,040 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:12:52,042 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 11:12:52,042 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:12:52,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:12:52,050 INFO L82 PathProgramCache]: Analyzing trace with hash 899835465, now seen corresponding path program 1 times [2020-09-25 11:12:52,062 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:12:52,063 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1655962527] [2020-09-25 11:12:52,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:12:52,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:12:52,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:12:52,722 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:12:52,722 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-09-25 11:12:52,723 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:12:52,723 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 398 [2020-09-25 11:12:52,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:12:52,726 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:12:52,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 11:12:52,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 76 [2020-09-25 11:12:52,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 11:12:52,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 11:12:52,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:12:52,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:12:52,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:12:52,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:12:52,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 11:12:52,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:12:52,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-25 11:12:52,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:12:52,906 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:12:52,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:12:52,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:12:52,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:12:52,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:12:52,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 11:12:52,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:12:52,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:12:52,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:12:52,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:12:52,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:12:52,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 11:12:52,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:12:52,926 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:12:52,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:12:52,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:12:52,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:12:52,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:12:52,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 11:12:52,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:12:52,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:12:52,969 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:12:52,969 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 11:12:52,969 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:12:52,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-25 11:12:52,970 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:12:52,970 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:12:52,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:12:52,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:12:52,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:12:52,971 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:12:52,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 11:12:52,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:12:52,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:12:52,990 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:12:52,991 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 11:12:52,991 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:12:52,991 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 11:12:52,991 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:12:52,992 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:12:52,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:12:52,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:12:52,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:12:52,993 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:12:52,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 11:12:52,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:12:53,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:12:53,021 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:12:53,021 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 11:12:53,022 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:12:53,022 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-25 11:12:53,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:12:53,022 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:12:53,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:12:53,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:12:53,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:12:53,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:12:53,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 11:12:53,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:12:53,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:12:53,042 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:12:53,042 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 11:12:53,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:12:53,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 11:12:53,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:12:53,043 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:12:53,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:12:53,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:12:53,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:12:53,044 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:12:53,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-25 11:12:53,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:12:53,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:12:53,099 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:12:53,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 11:12:53,100 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:12:53,100 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-09-25 11:12:53,100 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:12:53,100 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:12:53,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 11:12:53,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:12:53,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 11:12:53,101 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:12:53,130 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 11:12:53,130 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1655962527] [2020-09-25 11:12:53,132 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 11:12:53,133 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 11:12:53,134 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364839478] [2020-09-25 11:12:53,141 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 11:12:53,141 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:12:53,159 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 11:12:53,160 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-25 11:12:53,163 INFO L87 Difference]: Start difference. First operand 182 states. Second operand 6 states. [2020-09-25 11:12:54,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:12:54,070 INFO L93 Difference]: Finished difference Result 367 states and 421 transitions. [2020-09-25 11:12:54,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 11:12:54,072 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 60 [2020-09-25 11:12:54,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:12:54,090 INFO L225 Difference]: With dead ends: 367 [2020-09-25 11:12:54,091 INFO L226 Difference]: Without dead ends: 192 [2020-09-25 11:12:54,098 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 11:12:54,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2020-09-25 11:12:54,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 172. [2020-09-25 11:12:54,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 172 states. [2020-09-25 11:12:54,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 184 transitions. [2020-09-25 11:12:54,183 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 184 transitions. Word has length 60 [2020-09-25 11:12:54,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:12:54,184 INFO L479 AbstractCegarLoop]: Abstraction has 172 states and 184 transitions. [2020-09-25 11:12:54,184 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 11:12:54,184 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 184 transitions. [2020-09-25 11:12:54,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-09-25 11:12:54,188 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:12:54,188 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 11:12:54,188 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 11:12:54,189 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:12:54,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:12:54,189 INFO L82 PathProgramCache]: Analyzing trace with hash -1713006157, now seen corresponding path program 1 times [2020-09-25 11:12:54,190 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:12:54,190 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1223268982] [2020-09-25 11:12:54,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:12:54,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:12:54,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:12:54,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:12:54,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 11:12:54,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:12:54,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 638 [2020-09-25 11:12:54,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:12:54,863 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:12:54,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 11:12:54,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-09-25 11:12:54,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-09-25 11:12:54,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:12:54,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:12:54,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:12:54,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:12:54,974 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:12:54,974 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 11:12:54,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:12:54,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-25 11:12:54,975 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:12:54,975 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:12:54,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:12:54,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:12:54,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 11:12:54,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:12:54,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 11:12:54,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:12:54,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:12:54,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:12:54,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:12:54,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:12:54,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 11:12:55,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:12:55,000 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:12:55,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:12:55,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:12:55,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 11:12:55,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:12:55,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 11:12:55,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:12:55,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:12:55,054 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:12:55,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 11:12:55,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:12:55,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-09-25 11:12:55,055 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:12:55,056 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:12:55,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:12:55,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:12:55,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 11:12:55,057 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:12:55,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 11:12:55,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:12:55,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:12:55,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:12:55,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 11:12:55,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:12:55,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 11:12:55,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:12:55,075 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:12:55,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:12:55,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:12:55,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:12:55,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:12:55,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 11:12:55,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:12:55,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:12:55,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:12:55,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 11:12:55,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:12:55,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-09-25 11:12:55,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:12:55,145 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:12:55,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:12:55,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:12:55,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 11:12:55,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:12:55,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 11:12:55,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:12:55,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:12:55,164 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:12:55,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 11:12:55,165 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:12:55,165 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 11:12:55,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:12:55,166 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:12:55,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:12:55,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:12:55,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:12:55,167 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:12:55,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-25 11:12:55,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:12:55,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:12:55,282 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:12:55,282 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-25 11:12:55,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:12:55,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-09-25 11:12:55,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:12:55,283 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:12:55,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 11:12:55,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-25 11:12:55,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 11:12:55,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:12:55,543 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 11:12:55,543 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1223268982] [2020-09-25 11:12:55,544 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 11:12:55,544 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 11:12:55,544 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744067539] [2020-09-25 11:12:55,546 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 11:12:55,547 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:12:55,547 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 11:12:55,547 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-09-25 11:12:55,548 INFO L87 Difference]: Start difference. First operand 172 states and 184 transitions. Second operand 10 states. [2020-09-25 11:12:55,904 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 56 [2020-09-25 11:12:56,102 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 58 [2020-09-25 11:12:56,289 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 67 [2020-09-25 11:12:56,845 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2020-09-25 11:12:57,147 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 61 [2020-09-25 11:12:58,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:12:58,082 INFO L93 Difference]: Finished difference Result 494 states and 552 transitions. [2020-09-25 11:12:58,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-09-25 11:12:58,083 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 63 [2020-09-25 11:12:58,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:12:58,089 INFO L225 Difference]: With dead ends: 494 [2020-09-25 11:12:58,090 INFO L226 Difference]: Without dead ends: 343 [2020-09-25 11:12:58,093 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=178, Invalid=422, Unknown=0, NotChecked=0, Total=600 [2020-09-25 11:12:58,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2020-09-25 11:12:58,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 277. [2020-09-25 11:12:58,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 277 states. [2020-09-25 11:12:58,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 308 transitions. [2020-09-25 11:12:58,133 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 308 transitions. Word has length 63 [2020-09-25 11:12:58,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:12:58,133 INFO L479 AbstractCegarLoop]: Abstraction has 277 states and 308 transitions. [2020-09-25 11:12:58,133 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 11:12:58,134 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 308 transitions. [2020-09-25 11:12:58,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2020-09-25 11:12:58,139 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:12:58,140 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 11:12:58,140 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 11:12:58,140 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:12:58,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:12:58,141 INFO L82 PathProgramCache]: Analyzing trace with hash 2101448545, now seen corresponding path program 1 times [2020-09-25 11:12:58,141 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:12:58,141 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1841095325] [2020-09-25 11:12:58,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:12:58,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:12:58,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:12:58,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:12:59,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:12:59,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 177 [2020-09-25 11:12:59,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 11:12:59,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 894 [2020-09-25 11:12:59,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:12:59,076 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:12:59,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 11:12:59,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 98 [2020-09-25 11:12:59,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 11:12:59,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 11:12:59,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:12:59,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:12:59,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:12:59,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:12:59,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 11:12:59,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:12:59,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 11:12:59,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:12:59,138 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:12:59,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:12:59,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:12:59,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:12:59,139 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:12:59,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 11:12:59,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:12:59,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:12:59,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:12:59,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:12:59,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:12:59,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 11:12:59,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:12:59,149 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:12:59,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:12:59,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:12:59,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:12:59,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:12:59,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 11:12:59,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:12:59,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:12:59,199 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:12:59,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 11:12:59,200 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:12:59,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-09-25 11:12:59,200 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:12:59,201 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:12:59,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:12:59,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:12:59,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:12:59,201 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:12:59,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 11:12:59,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:12:59,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:12:59,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:12:59,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 11:12:59,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:12:59,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 11:12:59,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:12:59,214 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:12:59,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:12:59,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:12:59,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:12:59,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:12:59,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 11:12:59,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:12:59,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:12:59,234 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:12:59,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 11:12:59,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:12:59,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 11:12:59,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:12:59,235 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:12:59,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:12:59,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:12:59,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:12:59,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:12:59,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 11:12:59,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:12:59,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:12:59,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:12:59,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 11:12:59,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:12:59,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 11:12:59,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:12:59,250 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:12:59,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:12:59,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:12:59,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:12:59,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:12:59,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-09-25 11:12:59,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:12:59,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:12:59,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:12:59,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-25 11:12:59,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:12:59,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 82 [2020-09-25 11:12:59,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:12:59,357 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:12:59,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 11:12:59,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-09-25 11:12:59,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 11:12:59,358 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:12:59,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 11:12:59,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:12:59,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:12:59,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:12:59,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 11:12:59,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:12:59,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 11:12:59,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:12:59,385 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:12:59,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:12:59,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:12:59,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:12:59,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:12:59,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-25 11:12:59,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:12:59,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:12:59,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:12:59,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 11:12:59,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:12:59,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-09-25 11:12:59,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:12:59,440 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:12:59,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 11:12:59,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 11:12:59,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 11:12:59,441 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:12:59,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 11:12:59,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:12:59,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:12:59,488 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:12:59,488 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 11:12:59,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:12:59,489 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-25 11:12:59,489 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:12:59,489 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:12:59,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 11:12:59,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:12:59,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 11:12:59,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:12:59,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-09-25 11:12:59,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:12:59,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:12:59,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:12:59,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:12:59,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-25 11:12:59,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 11:12:59,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 126 [2020-09-25 11:12:59,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:12:59,643 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:12:59,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 11:12:59,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-09-25 11:12:59,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 11:12:59,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:12:59,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 11:12:59,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:12:59,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:12:59,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:12:59,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 11:12:59,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:12:59,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 11:12:59,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:12:59,667 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:12:59,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:12:59,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:12:59,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:12:59,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:12:59,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-25 11:12:59,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:12:59,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:12:59,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:12:59,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 11:12:59,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:12:59,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-09-25 11:12:59,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:12:59,730 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:12:59,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 11:12:59,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 11:12:59,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 11:12:59,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:12:59,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 11:12:59,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:12:59,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:12:59,786 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:12:59,787 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 11:12:59,787 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:12:59,787 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-25 11:12:59,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:12:59,788 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:12:59,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 11:12:59,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:12:59,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 11:12:59,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:12:59,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-09-25 11:12:59,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:12:59,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:12:59,816 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:12:59,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 11:12:59,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:12:59,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 11:12:59,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:12:59,818 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:12:59,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:12:59,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 11:12:59,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:12:59,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:12:59,856 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 125 trivial. 0 not checked. [2020-09-25 11:12:59,857 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1841095325] [2020-09-25 11:12:59,857 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 11:12:59,858 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 11:12:59,858 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094131641] [2020-09-25 11:12:59,859 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 11:12:59,859 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:12:59,859 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 11:12:59,860 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-25 11:12:59,860 INFO L87 Difference]: Start difference. First operand 277 states and 308 transitions. Second operand 7 states. [2020-09-25 11:13:00,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:13:00,657 INFO L93 Difference]: Finished difference Result 511 states and 568 transitions. [2020-09-25 11:13:00,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 11:13:00,659 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 138 [2020-09-25 11:13:00,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:13:00,664 INFO L225 Difference]: With dead ends: 511 [2020-09-25 11:13:00,664 INFO L226 Difference]: Without dead ends: 286 [2020-09-25 11:13:00,670 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 35 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2020-09-25 11:13:00,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2020-09-25 11:13:00,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 283. [2020-09-25 11:13:00,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 283 states. [2020-09-25 11:13:00,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 314 transitions. [2020-09-25 11:13:00,731 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 314 transitions. Word has length 138 [2020-09-25 11:13:00,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:13:00,732 INFO L479 AbstractCegarLoop]: Abstraction has 283 states and 314 transitions. [2020-09-25 11:13:00,732 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 11:13:00,732 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 314 transitions. [2020-09-25 11:13:00,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2020-09-25 11:13:00,744 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:13:00,745 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 11:13:00,746 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 11:13:00,746 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:13:00,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:13:00,747 INFO L82 PathProgramCache]: Analyzing trace with hash 1665265261, now seen corresponding path program 1 times [2020-09-25 11:13:00,747 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:13:00,747 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1682289159] [2020-09-25 11:13:00,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:13:00,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:13:00,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:13:01,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:13:01,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:13:05,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:13:05,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-09-25 11:13:05,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 11:13:05,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5039 [2020-09-25 11:13:05,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:13:05,866 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:13:05,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 11:13:05,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-09-25 11:13:05,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-09-25 11:13:05,867 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 11:13:05,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:13:05,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:13:05,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:13:06,020 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:13:06,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 11:13:06,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:13:06,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-09-25 11:13:06,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:13:06,021 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:13:06,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:13:06,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:13:06,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 11:13:06,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:13:06,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 11:13:06,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:13:06,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:13:06,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:13:06,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:13:06,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:13:06,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 11:13:06,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:13:06,042 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:13:06,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:13:06,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:13:06,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 11:13:06,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:13:06,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 11:13:06,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:13:06,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:13:06,082 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:13:06,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 11:13:06,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:13:06,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-25 11:13:06,083 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:13:06,083 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:13:06,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:13:06,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:13:06,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 11:13:06,084 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:13:06,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 11:13:06,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:13:06,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:13:06,099 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:13:06,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 11:13:06,100 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:13:06,100 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 11:13:06,100 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:13:06,101 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:13:06,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:13:06,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:13:06,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:13:06,101 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:13:06,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 11:13:06,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:13:06,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:13:06,146 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:13:06,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 11:13:06,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:13:06,147 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-09-25 11:13:06,147 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:13:06,147 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:13:06,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:13:06,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:13:06,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 11:13:06,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:13:06,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 11:13:06,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:13:06,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:13:06,160 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:13:06,160 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 11:13:06,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:13:06,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 11:13:06,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:13:06,162 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:13:06,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:13:06,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:13:06,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:13:06,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:13:06,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-09-25 11:13:06,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:13:06,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:13:06,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:13:07,251 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:13:07,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-09-25 11:13:07,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 11:13:07,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1063 [2020-09-25 11:13:07,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:13:07,253 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:13:07,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 11:13:07,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 11:13:07,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-09-25 11:13:07,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:13:07,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 11:13:07,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:13:07,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:13:07,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:13:07,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 11:13:07,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:13:07,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 11:13:07,311 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:13:07,311 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:13:07,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:13:07,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:13:07,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-25 11:13:07,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:13:07,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-25 11:13:07,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:13:07,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:13:07,497 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:13:07,498 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-09-25 11:13:07,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:13:07,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 173 [2020-09-25 11:13:07,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:13:07,500 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:13:07,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 11:13:07,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 11:13:07,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 11:13:07,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:13:07,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 11:13:07,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:13:07,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:13:07,638 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:13:07,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-25 11:13:07,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:13:07,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-09-25 11:13:07,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:13:07,640 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:13:07,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 11:13:07,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:13:07,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-09-25 11:13:07,641 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:13:07,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 11:13:07,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:13:07,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:13:07,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:13:08,274 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:13:08,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-09-25 11:13:08,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 11:13:08,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 501 [2020-09-25 11:13:08,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:13:08,276 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:13:08,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 11:13:08,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-09-25 11:13:08,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-09-25 11:13:08,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:13:08,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 11:13:08,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:13:08,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:13:08,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:13:08,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 11:13:08,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:13:08,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-09-25 11:13:08,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:13:08,398 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:13:08,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 11:13:08,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:13:08,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 11:13:08,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:13:08,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-25 11:13:08,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:13:08,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:13:08,625 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:13:08,626 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-09-25 11:13:08,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:13:08,626 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 190 [2020-09-25 11:13:08,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:13:08,627 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:13:08,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 11:13:08,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 11:13:08,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 11:13:08,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:13:08,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 11:13:08,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:13:08,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:13:08,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:13:08,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-25 11:13:08,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:13:08,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-09-25 11:13:08,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:13:08,731 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:13:08,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 11:13:08,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:13:08,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-09-25 11:13:08,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:13:08,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-25 11:13:08,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:13:08,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:13:08,772 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:13:08,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 11:13:08,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:13:08,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 11:13:08,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:13:08,774 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:13:08,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:13:08,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 11:13:08,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:13:08,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:13:08,837 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 27 proven. 34 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2020-09-25 11:13:08,838 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1682289159] [2020-09-25 11:13:08,838 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 11:13:08,838 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-09-25 11:13:08,839 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389670207] [2020-09-25 11:13:08,840 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-09-25 11:13:08,840 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:13:08,841 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-09-25 11:13:08,841 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2020-09-25 11:13:08,841 INFO L87 Difference]: Start difference. First operand 283 states and 314 transitions. Second operand 16 states. [2020-09-25 11:13:13,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:13:13,283 INFO L93 Difference]: Finished difference Result 772 states and 860 transitions. [2020-09-25 11:13:13,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2020-09-25 11:13:13,286 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 144 [2020-09-25 11:13:13,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:13:13,290 INFO L225 Difference]: With dead ends: 772 [2020-09-25 11:13:13,290 INFO L226 Difference]: Without dead ends: 432 [2020-09-25 11:13:13,292 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 822 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=596, Invalid=2596, Unknown=0, NotChecked=0, Total=3192 [2020-09-25 11:13:13,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 432 states. [2020-09-25 11:13:13,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 432 to 352. [2020-09-25 11:13:13,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 352 states. [2020-09-25 11:13:13,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 352 states to 352 states and 382 transitions. [2020-09-25 11:13:13,327 INFO L78 Accepts]: Start accepts. Automaton has 352 states and 382 transitions. Word has length 144 [2020-09-25 11:13:13,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:13:13,328 INFO L479 AbstractCegarLoop]: Abstraction has 352 states and 382 transitions. [2020-09-25 11:13:13,328 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-09-25 11:13:13,328 INFO L276 IsEmpty]: Start isEmpty. Operand 352 states and 382 transitions. [2020-09-25 11:13:13,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2020-09-25 11:13:13,335 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:13:13,335 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 11:13:13,335 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 11:13:13,336 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:13:13,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:13:13,338 INFO L82 PathProgramCache]: Analyzing trace with hash 203347141, now seen corresponding path program 1 times [2020-09-25 11:13:13,338 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:13:13,339 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1704807008] [2020-09-25 11:13:13,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:13:13,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 11:13:13,397 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 11:13:13,397 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 11:13:13,403 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 11:13:13,441 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 11:13:13 BoogieIcfgContainer [2020-09-25 11:13:13,441 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 11:13:13,443 INFO L168 Benchmark]: Toolchain (without parser) took 23455.51 ms. Allocated memory was 139.5 MB in the beginning and 480.8 MB in the end (delta: 341.3 MB). Free memory was 101.1 MB in the beginning and 368.8 MB in the end (delta: -267.7 MB). Peak memory consumption was 73.6 MB. Max. memory is 7.1 GB. [2020-09-25 11:13:13,445 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 139.5 MB. Free memory was 120.9 MB in the beginning and 120.7 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2020-09-25 11:13:13,448 INFO L168 Benchmark]: CACSL2BoogieTranslator took 830.56 ms. Allocated memory was 139.5 MB in the beginning and 202.4 MB in the end (delta: 62.9 MB). Free memory was 100.5 MB in the beginning and 163.4 MB in the end (delta: -62.9 MB). Peak memory consumption was 23.4 MB. Max. memory is 7.1 GB. [2020-09-25 11:13:13,453 INFO L168 Benchmark]: Boogie Preprocessor took 85.65 ms. Allocated memory is still 202.4 MB. Free memory was 163.4 MB in the beginning and 160.0 MB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 7.1 GB. [2020-09-25 11:13:13,455 INFO L168 Benchmark]: RCFGBuilder took 986.75 ms. Allocated memory is still 202.4 MB. Free memory was 160.0 MB in the beginning and 91.1 MB in the end (delta: 68.9 MB). Peak memory consumption was 68.9 MB. Max. memory is 7.1 GB. [2020-09-25 11:13:13,455 INFO L168 Benchmark]: TraceAbstraction took 21542.13 ms. Allocated memory was 202.4 MB in the beginning and 480.8 MB in the end (delta: 278.4 MB). Free memory was 90.4 MB in the beginning and 368.8 MB in the end (delta: -278.4 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-25 11:13:13,465 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 139.5 MB. Free memory was 120.9 MB in the beginning and 120.7 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 830.56 ms. Allocated memory was 139.5 MB in the beginning and 202.4 MB in the end (delta: 62.9 MB). Free memory was 100.5 MB in the beginning and 163.4 MB in the end (delta: -62.9 MB). Peak memory consumption was 23.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 85.65 ms. Allocated memory is still 202.4 MB. Free memory was 163.4 MB in the beginning and 160.0 MB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 986.75 ms. Allocated memory is still 202.4 MB. Free memory was 160.0 MB in the beginning and 91.1 MB in the end (delta: 68.9 MB). Peak memory consumption was 68.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 21542.13 ms. Allocated memory was 202.4 MB in the beginning and 480.8 MB in the end (delta: 278.4 MB). Free memory was 90.4 MB in the beginning and 368.8 MB in the end (delta: -278.4 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 658]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L654] struct ldv_list_head mutexes = { &(mutexes), &(mutexes) }; [L681] CALL foo() [L670] FCALL ldv_initialize() [L671] CALL, EXPR ldv_successful_malloc(sizeof(struct mutex)) [L565] void *ptr = malloc(size); [L566] CALL assume_abort_if_not(ptr!=0) [L554] COND FALSE !(!cond) [L566] RET assume_abort_if_not(ptr!=0) [L567] return ptr; [L671] RET, EXPR ldv_successful_malloc(sizeof(struct mutex)) [L671] struct mutex *m1 = ldv_successful_malloc(sizeof(struct mutex)); [L672] CALL, EXPR ldv_successful_malloc(sizeof(struct mutex)) [L565] void *ptr = malloc(size); [L566] CALL assume_abort_if_not(ptr!=0) [L554] COND FALSE !(!cond) [L566] RET assume_abort_if_not(ptr!=0) [L567] return ptr; [L672] RET, EXPR ldv_successful_malloc(sizeof(struct mutex)) [L672] struct mutex *m2 = ldv_successful_malloc(sizeof(struct mutex)); [L673] CALL mutex_lock(m1) [L658] CALL ldv_is_in_set(m, &mutexes) [L643] struct ldv_list_element *m; [L644] EXPR (s)->next [L644] const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); [L644] m = ({ const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); (typeof(*m) *)( (char *)__mptr - ((size_t) &((typeof(*m) *)0)->list) );}) [L644] COND FALSE !(&m->list != (s)) [L649] return 0; [L658] RET ldv_is_in_set(m, &mutexes) [L658] COND FALSE !(ldv_is_in_set(m, &mutexes)) [L659] CALL ldv_set_add(m, &mutexes) [L625] CALL, EXPR ldv_is_in_set(new, s) [L643] struct ldv_list_element *m; [L644] EXPR (s)->next [L644] const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); [L644] m = ({ const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); (typeof(*m) *)( (char *)__mptr - ((size_t) &((typeof(*m) *)0)->list) );}) [L644] COND FALSE !(&m->list != (s)) [L649] return 0; [L625] RET, EXPR ldv_is_in_set(new, s) [L625] COND TRUE !ldv_is_in_set(new, s) [L626] struct ldv_list_element *le; [L627] CALL, EXPR ldv_successful_malloc(sizeof(struct ldv_list_element)) [L565] void *ptr = malloc(size); [L566] CALL assume_abort_if_not(ptr!=0) [L554] COND FALSE !(!cond) [L566] RET assume_abort_if_not(ptr!=0) [L567] return ptr; [L627] RET, EXPR ldv_successful_malloc(sizeof(struct ldv_list_element)) [L627] le = (struct ldv_list_element*)ldv_successful_malloc(sizeof(struct ldv_list_element)) [L628] le->e = new [L629] CALL ldv_list_add(&le->list, s) [L597] EXPR head->next [L597] CALL __ldv_list_add(new, head, head->next) [L585] next->prev = new [L586] new->next = next [L587] new->prev = prev [L588] prev->next = new [L597] RET __ldv_list_add(new, head, head->next) [L629] RET ldv_list_add(&le->list, s) [L659] RET ldv_set_add(m, &mutexes) [L673] RET mutex_lock(m1) [L674] CALL mutex_lock(m1) [L658] CALL ldv_is_in_set(m, &mutexes) [L643] struct ldv_list_element *m; [L644] EXPR (s)->next [L644] const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); [L644] m = ({ const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); (typeof(*m) *)( (char *)__mptr - ((size_t) &((typeof(*m) *)0)->list) );}) [L644] COND TRUE &m->list != (s) [L645] EXPR m->e [L645] COND TRUE m->e == e [L646] return 1; [L658] RET ldv_is_in_set(m, &mutexes) [L658] COND TRUE ldv_is_in_set(m, &mutexes) [L658] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 25 procedures, 215 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 21.4s, OverallIterations: 5, TraceHistogramMax: 5, AutomataDifference: 8.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 780 SDtfs, 1777 SDslu, 598 SDs, 0 SdLazy, 3640 SolverSat, 379 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 214 GetRequests, 121 SyntacticMatches, 1 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 930 ImplicationChecksByTransitivity, 3.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=352occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 169 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 11.7s InterpolantComputationTime, 540 NumberOfCodeBlocks, 540 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 401 ConstructedInterpolants, 0 QuantifiedInterpolants, 250739 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 253/293 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...