/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 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-sets/test_mutex_unbounded-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-06 21:11:10,931 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-06 21:11:10,934 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-06 21:11:10,951 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-06 21:11:10,952 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-06 21:11:10,952 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-06 21:11:10,953 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-06 21:11:10,955 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-06 21:11:10,957 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-06 21:11:10,958 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-06 21:11:10,959 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-06 21:11:10,960 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-06 21:11:10,960 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-06 21:11:10,961 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-06 21:11:10,962 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-06 21:11:10,963 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-06 21:11:10,964 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-06 21:11:10,965 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-06 21:11:10,967 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-06 21:11:10,969 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-06 21:11:10,971 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-06 21:11:10,972 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-06 21:11:10,973 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-06 21:11:10,974 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-06 21:11:10,976 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-06 21:11:10,976 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-06 21:11:10,977 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-06 21:11:10,978 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-06 21:11:10,978 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-06 21:11:10,979 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-06 21:11:10,979 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-06 21:11:10,980 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-06 21:11:10,981 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-06 21:11:10,982 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-06 21:11:10,982 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-06 21:11:10,983 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-06 21:11:10,983 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-06 21:11:10,984 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-06 21:11:10,984 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-06 21:11:10,985 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-06 21:11:10,985 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-06 21:11:10,986 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-06 21:11:11,003 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-06 21:11:11,004 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-06 21:11:11,005 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-06 21:11:11,005 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-06 21:11:11,005 INFO L138 SettingsManager]: * Use SBE=true [2019-11-06 21:11:11,006 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-06 21:11:11,006 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-06 21:11:11,006 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-06 21:11:11,006 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-06 21:11:11,006 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-06 21:11:11,007 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-06 21:11:11,007 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-06 21:11:11,007 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-06 21:11:11,007 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-06 21:11:11,007 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-06 21:11:11,008 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-06 21:11:11,008 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-06 21:11:11,008 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-06 21:11:11,008 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-06 21:11:11,008 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-06 21:11:11,008 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-06 21:11:11,009 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-06 21:11:11,009 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-06 21:11:11,009 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-06 21:11:11,009 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-06 21:11:11,011 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-06 21:11:11,011 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-06 21:11:11,011 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-06 21:11:11,011 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-06 21:11:11,303 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-06 21:11:11,316 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-06 21:11:11,320 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-06 21:11:11,321 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-06 21:11:11,322 INFO L275 PluginConnector]: CDTParser initialized [2019-11-06 21:11:11,322 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-sets/test_mutex_unbounded-1.i [2019-11-06 21:11:11,381 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca4bdd185/4b970911d73648688fdabc95409c9aea/FLAG2244579a8 [2019-11-06 21:11:11,863 INFO L306 CDTParser]: Found 1 translation units. [2019-11-06 21:11:11,863 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-sets/test_mutex_unbounded-1.i [2019-11-06 21:11:11,883 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca4bdd185/4b970911d73648688fdabc95409c9aea/FLAG2244579a8 [2019-11-06 21:11:12,206 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca4bdd185/4b970911d73648688fdabc95409c9aea [2019-11-06 21:11:12,214 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-06 21:11:12,215 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-06 21:11:12,217 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-06 21:11:12,217 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-06 21:11:12,220 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-06 21:11:12,221 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:11:12" (1/1) ... [2019-11-06 21:11:12,225 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3333f76e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:11:12, skipping insertion in model container [2019-11-06 21:11:12,225 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:11:12" (1/1) ... [2019-11-06 21:11:12,233 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-06 21:11:12,282 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-06 21:11:12,765 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-06 21:11:12,776 INFO L188 MainTranslator]: Completed pre-run [2019-11-06 21:11:12,839 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-06 21:11:12,905 INFO L192 MainTranslator]: Completed translation [2019-11-06 21:11:12,906 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:11:12 WrapperNode [2019-11-06 21:11:12,906 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-06 21:11:12,907 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-06 21:11:12,908 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-06 21:11:12,908 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-06 21:11:12,923 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:11:12" (1/1) ... [2019-11-06 21:11:12,923 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:11:12" (1/1) ... [2019-11-06 21:11:12,945 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:11:12" (1/1) ... [2019-11-06 21:11:12,945 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:11:12" (1/1) ... [2019-11-06 21:11:12,972 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:11:12" (1/1) ... [2019-11-06 21:11:12,980 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:11:12" (1/1) ... [2019-11-06 21:11:12,984 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:11:12" (1/1) ... [2019-11-06 21:11:12,993 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-06 21:11:12,994 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-06 21:11:12,994 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-06 21:11:12,994 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-06 21:11:12,995 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:11:12" (1/1) ... No working directory specified, using /storage/repos/ultimate/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 [2019-11-06 21:11:13,057 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-06 21:11:13,057 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-06 21:11:13,057 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-11-06 21:11:13,057 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-11-06 21:11:13,058 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-11-06 21:11:13,058 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_successful_malloc [2019-11-06 21:11:13,058 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2019-11-06 21:11:13,058 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2019-11-06 21:11:13,058 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2019-11-06 21:11:13,059 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2019-11-06 21:11:13,059 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2019-11-06 21:11:13,059 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2019-11-06 21:11:13,059 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_empty [2019-11-06 21:11:13,059 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_set [2019-11-06 21:11:13,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_add [2019-11-06 21:11:13,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_del [2019-11-06 21:11:13,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_in_set [2019-11-06 21:11:13,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_empty [2019-11-06 21:11:13,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-11-06 21:11:13,060 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2019-11-06 21:11:13,061 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2019-11-06 21:11:13,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-11-06 21:11:13,061 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2019-11-06 21:11:13,061 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-06 21:11:13,061 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-11-06 21:11:13,061 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-11-06 21:11:13,062 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-11-06 21:11:13,062 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-11-06 21:11:13,062 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-11-06 21:11:13,062 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-11-06 21:11:13,062 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-11-06 21:11:13,063 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-11-06 21:11:13,063 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-11-06 21:11:13,063 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-11-06 21:11:13,063 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-11-06 21:11:13,063 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-11-06 21:11:13,063 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-11-06 21:11:13,064 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-11-06 21:11:13,064 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-11-06 21:11:13,064 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-11-06 21:11:13,064 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-11-06 21:11:13,064 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-11-06 21:11:13,064 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-11-06 21:11:13,065 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-11-06 21:11:13,065 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-11-06 21:11:13,065 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-11-06 21:11:13,065 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-11-06 21:11:13,065 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-11-06 21:11:13,065 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-11-06 21:11:13,066 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-11-06 21:11:13,066 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-11-06 21:11:13,066 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-11-06 21:11:13,066 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-11-06 21:11:13,066 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-11-06 21:11:13,066 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-11-06 21:11:13,067 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-11-06 21:11:13,067 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-11-06 21:11:13,067 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-11-06 21:11:13,067 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-11-06 21:11:13,067 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-11-06 21:11:13,067 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-11-06 21:11:13,067 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-11-06 21:11:13,068 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-11-06 21:11:13,068 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-11-06 21:11:13,068 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-11-06 21:11:13,068 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-11-06 21:11:13,068 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-11-06 21:11:13,069 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-11-06 21:11:13,069 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-11-06 21:11:13,069 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-11-06 21:11:13,069 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-11-06 21:11:13,069 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-11-06 21:11:13,069 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-11-06 21:11:13,070 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-11-06 21:11:13,070 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-11-06 21:11:13,070 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-11-06 21:11:13,070 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-06 21:11:13,070 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-06 21:11:13,070 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-11-06 21:11:13,071 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-06 21:11:13,071 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-11-06 21:11:13,071 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-11-06 21:11:13,071 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-11-06 21:11:13,071 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-11-06 21:11:13,071 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-11-06 21:11:13,072 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-11-06 21:11:13,072 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-11-06 21:11:13,072 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-11-06 21:11:13,072 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-11-06 21:11:13,072 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-06 21:11:13,072 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-11-06 21:11:13,072 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-11-06 21:11:13,073 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-11-06 21:11:13,073 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-11-06 21:11:13,073 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-11-06 21:11:13,073 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-11-06 21:11:13,073 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-11-06 21:11:13,073 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-11-06 21:11:13,074 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-11-06 21:11:13,074 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-11-06 21:11:13,074 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-11-06 21:11:13,074 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-11-06 21:11:13,074 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-11-06 21:11:13,074 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-11-06 21:11:13,074 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-11-06 21:11:13,075 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-11-06 21:11:13,075 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-11-06 21:11:13,075 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-11-06 21:11:13,075 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-11-06 21:11:13,075 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-11-06 21:11:13,075 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-11-06 21:11:13,076 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-11-06 21:11:13,076 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-11-06 21:11:13,076 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-11-06 21:11:13,076 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-11-06 21:11:13,076 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-11-06 21:11:13,076 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-11-06 21:11:13,076 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-11-06 21:11:13,077 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-11-06 21:11:13,077 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-11-06 21:11:13,077 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-11-06 21:11:13,077 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-11-06 21:11:13,077 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-11-06 21:11:13,077 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-11-06 21:11:13,078 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-11-06 21:11:13,078 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-11-06 21:11:13,078 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-11-06 21:11:13,078 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-11-06 21:11:13,078 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-11-06 21:11:13,078 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-06 21:11:13,079 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-11-06 21:11:13,079 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-06 21:11:13,079 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-11-06 21:11:13,079 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-11-06 21:11:13,079 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-06 21:11:13,079 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_successful_malloc [2019-11-06 21:11:13,080 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2019-11-06 21:11:13,080 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-06 21:11:13,080 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2019-11-06 21:11:13,080 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2019-11-06 21:11:13,080 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2019-11-06 21:11:13,080 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-06 21:11:13,081 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2019-11-06 21:11:13,081 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2019-11-06 21:11:13,081 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_empty [2019-11-06 21:11:13,081 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_set [2019-11-06 21:11:13,081 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_add [2019-11-06 21:11:13,081 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_del [2019-11-06 21:11:13,082 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_in_set [2019-11-06 21:11:13,082 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_empty [2019-11-06 21:11:13,082 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-06 21:11:13,082 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-11-06 21:11:13,082 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2019-11-06 21:11:13,082 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2019-11-06 21:11:13,082 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-11-06 21:11:13,083 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2019-11-06 21:11:13,083 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-06 21:11:13,083 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-06 21:11:13,083 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-06 21:11:13,083 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-11-06 21:11:13,083 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-06 21:11:13,996 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-06 21:11:13,997 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-06 21:11:13,998 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:11:13 BoogieIcfgContainer [2019-11-06 21:11:13,998 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-06 21:11:14,000 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-06 21:11:14,000 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-06 21:11:14,003 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-06 21:11:14,004 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 09:11:12" (1/3) ... [2019-11-06 21:11:14,005 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64f31ddd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:11:14, skipping insertion in model container [2019-11-06 21:11:14,005 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:11:12" (2/3) ... [2019-11-06 21:11:14,005 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64f31ddd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:11:14, skipping insertion in model container [2019-11-06 21:11:14,005 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:11:13" (3/3) ... [2019-11-06 21:11:14,007 INFO L109 eAbstractionObserver]: Analyzing ICFG test_mutex_unbounded-1.i [2019-11-06 21:11:14,018 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-06 21:11:14,027 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-11-06 21:11:14,039 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-11-06 21:11:14,067 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-06 21:11:14,067 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-06 21:11:14,067 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-06 21:11:14,068 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-06 21:11:14,068 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-06 21:11:14,068 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-06 21:11:14,068 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-06 21:11:14,069 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-06 21:11:14,091 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states. [2019-11-06 21:11:14,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-11-06 21:11:14,099 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 21:11:14,100 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 21:11:14,102 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 21:11:14,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 21:11:14,109 INFO L82 PathProgramCache]: Analyzing trace with hash 1377823641, now seen corresponding path program 1 times [2019-11-06 21:11:14,134 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 21:11:14,135 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078729738] [2019-11-06 21:11:14,135 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 21:11:14,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:11:14,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:11:14,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:11:14,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:11:14,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 21:11:14,424 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078729738] [2019-11-06 21:11:14,425 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 21:11:14,425 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-06 21:11:14,427 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588155963] [2019-11-06 21:11:14,432 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-06 21:11:14,433 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 21:11:14,447 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-06 21:11:14,448 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-06 21:11:14,450 INFO L87 Difference]: Start difference. First operand 110 states. Second operand 3 states. [2019-11-06 21:11:14,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 21:11:14,851 INFO L93 Difference]: Finished difference Result 228 states and 289 transitions. [2019-11-06 21:11:14,852 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-06 21:11:14,854 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2019-11-06 21:11:14,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 21:11:14,868 INFO L225 Difference]: With dead ends: 228 [2019-11-06 21:11:14,868 INFO L226 Difference]: Without dead ends: 122 [2019-11-06 21:11:14,873 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-06 21:11:14,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2019-11-06 21:11:14,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 98. [2019-11-06 21:11:14,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2019-11-06 21:11:14,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 109 transitions. [2019-11-06 21:11:14,935 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 109 transitions. Word has length 24 [2019-11-06 21:11:14,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 21:11:14,936 INFO L462 AbstractCegarLoop]: Abstraction has 98 states and 109 transitions. [2019-11-06 21:11:14,936 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-06 21:11:14,936 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 109 transitions. [2019-11-06 21:11:14,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-11-06 21:11:14,939 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 21:11:14,939 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 21:11:14,939 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 21:11:14,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 21:11:14,940 INFO L82 PathProgramCache]: Analyzing trace with hash 1092721423, now seen corresponding path program 1 times [2019-11-06 21:11:14,940 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 21:11:14,940 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344675088] [2019-11-06 21:11:14,941 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 21:11:14,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:11:15,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:11:15,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:11:15,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:11:15,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 21:11:15,151 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1344675088] [2019-11-06 21:11:15,151 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 21:11:15,152 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-06 21:11:15,152 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925141337] [2019-11-06 21:11:15,155 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-06 21:11:15,155 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 21:11:15,155 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-06 21:11:15,156 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-06 21:11:15,156 INFO L87 Difference]: Start difference. First operand 98 states and 109 transitions. Second operand 5 states. [2019-11-06 21:11:15,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 21:11:15,738 INFO L93 Difference]: Finished difference Result 128 states and 152 transitions. [2019-11-06 21:11:15,738 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-06 21:11:15,739 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 24 [2019-11-06 21:11:15,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 21:11:15,741 INFO L225 Difference]: With dead ends: 128 [2019-11-06 21:11:15,741 INFO L226 Difference]: Without dead ends: 126 [2019-11-06 21:11:15,743 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-11-06 21:11:15,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2019-11-06 21:11:15,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 102. [2019-11-06 21:11:15,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2019-11-06 21:11:15,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 115 transitions. [2019-11-06 21:11:15,761 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 115 transitions. Word has length 24 [2019-11-06 21:11:15,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 21:11:15,761 INFO L462 AbstractCegarLoop]: Abstraction has 102 states and 115 transitions. [2019-11-06 21:11:15,762 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-06 21:11:15,762 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 115 transitions. [2019-11-06 21:11:15,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-11-06 21:11:15,763 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 21:11:15,763 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 21:11:15,763 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 21:11:15,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 21:11:15,764 INFO L82 PathProgramCache]: Analyzing trace with hash -1627642568, now seen corresponding path program 1 times [2019-11-06 21:11:15,764 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 21:11:15,764 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241524806] [2019-11-06 21:11:15,765 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 21:11:15,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:11:15,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:11:15,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:11:15,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:11:15,885 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 21:11:15,885 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241524806] [2019-11-06 21:11:15,885 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 21:11:15,886 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-06 21:11:15,886 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196866692] [2019-11-06 21:11:15,886 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-06 21:11:15,887 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 21:11:15,887 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-06 21:11:15,887 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-06 21:11:15,887 INFO L87 Difference]: Start difference. First operand 102 states and 115 transitions. Second operand 5 states. [2019-11-06 21:11:16,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 21:11:16,604 INFO L93 Difference]: Finished difference Result 229 states and 259 transitions. [2019-11-06 21:11:16,605 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-06 21:11:16,605 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 24 [2019-11-06 21:11:16,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 21:11:16,607 INFO L225 Difference]: With dead ends: 229 [2019-11-06 21:11:16,607 INFO L226 Difference]: Without dead ends: 143 [2019-11-06 21:11:16,608 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-11-06 21:11:16,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2019-11-06 21:11:16,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 111. [2019-11-06 21:11:16,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111 states. [2019-11-06 21:11:16,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 125 transitions. [2019-11-06 21:11:16,627 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 125 transitions. Word has length 24 [2019-11-06 21:11:16,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 21:11:16,627 INFO L462 AbstractCegarLoop]: Abstraction has 111 states and 125 transitions. [2019-11-06 21:11:16,627 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-06 21:11:16,627 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 125 transitions. [2019-11-06 21:11:16,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-11-06 21:11:16,629 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 21:11:16,629 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 21:11:16,629 INFO L410 AbstractCegarLoop]: === Iteration 4 === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 21:11:16,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 21:11:16,629 INFO L82 PathProgramCache]: Analyzing trace with hash -1843559385, now seen corresponding path program 1 times [2019-11-06 21:11:16,630 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 21:11:16,630 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084009875] [2019-11-06 21:11:16,630 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 21:11:16,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:11:16,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:11:16,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:11:16,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:11:16,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:11:16,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 21:11:16,878 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084009875] [2019-11-06 21:11:16,879 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 21:11:16,879 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-11-06 21:11:16,879 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230085316] [2019-11-06 21:11:16,880 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-06 21:11:16,880 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 21:11:16,880 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-06 21:11:16,880 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-11-06 21:11:16,881 INFO L87 Difference]: Start difference. First operand 111 states and 125 transitions. Second operand 9 states. [2019-11-06 21:11:17,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 21:11:17,961 INFO L93 Difference]: Finished difference Result 143 states and 161 transitions. [2019-11-06 21:11:17,961 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-11-06 21:11:17,962 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 28 [2019-11-06 21:11:17,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 21:11:17,965 INFO L225 Difference]: With dead ends: 143 [2019-11-06 21:11:17,965 INFO L226 Difference]: Without dead ends: 125 [2019-11-06 21:11:17,966 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2019-11-06 21:11:17,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2019-11-06 21:11:17,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 107. [2019-11-06 21:11:17,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2019-11-06 21:11:17,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 120 transitions. [2019-11-06 21:11:17,982 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 120 transitions. Word has length 28 [2019-11-06 21:11:17,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 21:11:17,982 INFO L462 AbstractCegarLoop]: Abstraction has 107 states and 120 transitions. [2019-11-06 21:11:17,983 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-06 21:11:17,983 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 120 transitions. [2019-11-06 21:11:17,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2019-11-06 21:11:17,984 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 21:11:17,985 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 21:11:17,985 INFO L410 AbstractCegarLoop]: === Iteration 5 === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 21:11:17,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 21:11:17,985 INFO L82 PathProgramCache]: Analyzing trace with hash 472914007, now seen corresponding path program 1 times [2019-11-06 21:11:17,986 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 21:11:17,986 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899107582] [2019-11-06 21:11:17,986 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 21:11:18,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:11:18,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:11:18,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:11:18,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:11:18,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:11:18,716 WARN L191 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2019-11-06 21:11:18,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat