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/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf -i ../../../trunk/examples/svcomp/ldv-sets/test_mutex_unlock_at_exit.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-673a906-m [2019-10-03 02:24:48,073 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-03 02:24:48,076 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-03 02:24:48,091 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-03 02:24:48,092 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-03 02:24:48,093 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-03 02:24:48,095 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-03 02:24:48,097 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-03 02:24:48,099 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-03 02:24:48,100 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-03 02:24:48,102 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-03 02:24:48,103 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-03 02:24:48,104 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-03 02:24:48,105 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-03 02:24:48,106 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-03 02:24:48,108 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-03 02:24:48,109 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-03 02:24:48,110 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-03 02:24:48,112 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-03 02:24:48,114 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-03 02:24:48,116 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-03 02:24:48,117 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-03 02:24:48,119 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-03 02:24:48,120 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-03 02:24:48,123 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-03 02:24:48,123 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-03 02:24:48,123 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-03 02:24:48,125 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-03 02:24:48,125 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-03 02:24:48,126 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-03 02:24:48,127 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-03 02:24:48,128 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-03 02:24:48,129 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-03 02:24:48,130 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-03 02:24:48,131 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-03 02:24:48,131 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-03 02:24:48,132 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-03 02:24:48,133 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-03 02:24:48,133 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-03 02:24:48,134 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-03 02:24:48,135 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-03 02:24:48,136 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-10-03 02:24:48,154 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-03 02:24:48,154 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-03 02:24:48,155 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-10-03 02:24:48,155 INFO L138 SettingsManager]: * Log level for plugins=info [2019-10-03 02:24:48,156 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-03 02:24:48,156 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-03 02:24:48,156 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-10-03 02:24:48,156 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-10-03 02:24:48,157 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-03 02:24:48,157 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-10-03 02:24:48,158 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-03 02:24:48,158 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-03 02:24:48,159 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-03 02:24:48,159 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-03 02:24:48,159 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-03 02:24:48,159 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-03 02:24:48,159 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-03 02:24:48,160 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-03 02:24:48,160 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-03 02:24:48,160 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-03 02:24:48,160 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-03 02:24:48,160 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-10-03 02:24:48,161 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-03 02:24:48,161 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-03 02:24:48,161 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-03 02:24:48,161 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-03 02:24:48,162 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-03 02:24:48,162 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-03 02:24:48,162 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-03 02:24:48,162 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-10-03 02:24:48,196 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-03 02:24:48,213 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-03 02:24:48,218 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-03 02:24:48,220 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-03 02:24:48,221 INFO L275 PluginConnector]: CDTParser initialized [2019-10-03 02:24:48,222 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-sets/test_mutex_unlock_at_exit.i [2019-10-03 02:24:48,307 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1e8297442/ac9bdf6d28304ce0931795bdda256d60/FLAGe01f0cb26 [2019-10-03 02:24:49,056 INFO L306 CDTParser]: Found 1 translation units. [2019-10-03 02:24:49,057 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-sets/test_mutex_unlock_at_exit.i [2019-10-03 02:24:49,088 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1e8297442/ac9bdf6d28304ce0931795bdda256d60/FLAGe01f0cb26 [2019-10-03 02:24:49,252 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1e8297442/ac9bdf6d28304ce0931795bdda256d60 [2019-10-03 02:24:49,267 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-03 02:24:49,271 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-03 02:24:49,277 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-03 02:24:49,277 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-03 02:24:49,282 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-03 02:24:49,283 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 02:24:49" (1/1) ... [2019-10-03 02:24:49,289 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ed11f4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:24:49, skipping insertion in model container [2019-10-03 02:24:49,290 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 02:24:49" (1/1) ... [2019-10-03 02:24:49,302 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-03 02:24:49,368 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-03 02:24:49,978 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 02:24:50,000 INFO L188 MainTranslator]: Completed pre-run [2019-10-03 02:24:50,113 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 02:24:50,192 INFO L192 MainTranslator]: Completed translation [2019-10-03 02:24:50,193 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:24:50 WrapperNode [2019-10-03 02:24:50,193 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-03 02:24:50,194 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-03 02:24:50,194 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-03 02:24:50,194 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-03 02:24:50,211 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:24:50" (1/1) ... [2019-10-03 02:24:50,211 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:24:50" (1/1) ... [2019-10-03 02:24:50,234 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:24:50" (1/1) ... [2019-10-03 02:24:50,234 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:24:50" (1/1) ... [2019-10-03 02:24:50,263 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:24:50" (1/1) ... [2019-10-03 02:24:50,270 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:24:50" (1/1) ... [2019-10-03 02:24:50,275 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:24:50" (1/1) ... [2019-10-03 02:24:50,284 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-03 02:24:50,285 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-03 02:24:50,285 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-03 02:24:50,285 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-03 02:24:50,287 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:24:50" (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 [2019-10-03 02:24:50,406 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-03 02:24:50,407 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-03 02:24:50,407 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-10-03 02:24:50,408 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-10-03 02:24:50,408 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-10-03 02:24:50,408 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_successful_malloc [2019-10-03 02:24:50,409 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2019-10-03 02:24:50,409 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2019-10-03 02:24:50,409 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2019-10-03 02:24:50,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2019-10-03 02:24:50,410 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2019-10-03 02:24:50,410 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2019-10-03 02:24:50,410 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_empty [2019-10-03 02:24:50,410 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_set [2019-10-03 02:24:50,410 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_add [2019-10-03 02:24:50,411 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_del [2019-10-03 02:24:50,413 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_in_set [2019-10-03 02:24:50,413 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_empty [2019-10-03 02:24:50,414 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-10-03 02:24:50,414 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2019-10-03 02:24:50,415 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2019-10-03 02:24:50,415 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-10-03 02:24:50,417 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2019-10-03 02:24:50,417 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-03 02:24:50,418 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-10-03 02:24:50,421 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-10-03 02:24:50,421 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-10-03 02:24:50,421 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-10-03 02:24:50,422 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-10-03 02:24:50,423 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-10-03 02:24:50,423 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-10-03 02:24:50,423 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-10-03 02:24:50,423 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-10-03 02:24:50,423 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-10-03 02:24:50,424 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-10-03 02:24:50,424 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-10-03 02:24:50,424 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-10-03 02:24:50,424 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-10-03 02:24:50,424 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-10-03 02:24:50,424 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-10-03 02:24:50,424 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-10-03 02:24:50,425 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-10-03 02:24:50,425 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-10-03 02:24:50,425 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-10-03 02:24:50,426 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-10-03 02:24:50,426 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-10-03 02:24:50,426 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-10-03 02:24:50,426 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-10-03 02:24:50,426 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-10-03 02:24:50,426 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-10-03 02:24:50,427 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-10-03 02:24:50,427 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-10-03 02:24:50,427 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-10-03 02:24:50,427 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-10-03 02:24:50,427 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-10-03 02:24:50,429 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-10-03 02:24:50,429 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-10-03 02:24:50,430 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-10-03 02:24:50,430 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-10-03 02:24:50,431 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-10-03 02:24:50,431 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-10-03 02:24:50,431 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-10-03 02:24:50,431 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-10-03 02:24:50,431 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-10-03 02:24:50,432 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-10-03 02:24:50,433 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-10-03 02:24:50,433 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-10-03 02:24:50,434 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-10-03 02:24:50,434 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-10-03 02:24:50,435 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-10-03 02:24:50,435 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-10-03 02:24:50,435 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-10-03 02:24:50,435 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-10-03 02:24:50,437 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-10-03 02:24:50,437 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-10-03 02:24:50,437 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-10-03 02:24:50,437 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-03 02:24:50,437 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-03 02:24:50,437 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-10-03 02:24:50,439 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-03 02:24:50,439 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-10-03 02:24:50,439 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-10-03 02:24:50,440 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-10-03 02:24:50,440 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-10-03 02:24:50,440 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-10-03 02:24:50,440 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-10-03 02:24:50,440 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-10-03 02:24:50,442 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-03 02:24:50,442 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-10-03 02:24:50,442 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-10-03 02:24:50,442 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-10-03 02:24:50,442 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-10-03 02:24:50,442 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-10-03 02:24:50,443 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-10-03 02:24:50,443 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-10-03 02:24:50,443 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-10-03 02:24:50,443 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-10-03 02:24:50,443 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-10-03 02:24:50,443 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-10-03 02:24:50,444 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-10-03 02:24:50,444 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-10-03 02:24:50,444 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-10-03 02:24:50,444 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-10-03 02:24:50,444 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-10-03 02:24:50,444 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-10-03 02:24:50,444 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-10-03 02:24:50,445 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-10-03 02:24:50,445 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-10-03 02:24:50,445 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-10-03 02:24:50,445 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-10-03 02:24:50,445 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-10-03 02:24:50,445 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-10-03 02:24:50,445 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-10-03 02:24:50,446 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-10-03 02:24:50,446 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-10-03 02:24:50,446 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-10-03 02:24:50,446 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-10-03 02:24:50,447 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-10-03 02:24:50,448 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-10-03 02:24:50,448 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-10-03 02:24:50,449 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-10-03 02:24:50,449 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-10-03 02:24:50,449 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-10-03 02:24:50,449 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-10-03 02:24:50,449 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-10-03 02:24:50,449 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-10-03 02:24:50,450 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-03 02:24:50,450 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-03 02:24:50,450 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-03 02:24:50,450 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-10-03 02:24:50,450 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-10-03 02:24:50,450 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-03 02:24:50,450 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_successful_malloc [2019-10-03 02:24:50,450 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2019-10-03 02:24:50,450 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-03 02:24:50,451 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2019-10-03 02:24:50,451 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2019-10-03 02:24:50,451 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2019-10-03 02:24:50,451 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-03 02:24:50,451 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2019-10-03 02:24:50,451 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2019-10-03 02:24:50,451 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_empty [2019-10-03 02:24:50,451 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_set [2019-10-03 02:24:50,452 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_add [2019-10-03 02:24:50,452 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_del [2019-10-03 02:24:50,452 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_in_set [2019-10-03 02:24:50,452 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_empty [2019-10-03 02:24:50,452 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-03 02:24:50,452 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-10-03 02:24:50,452 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2019-10-03 02:24:50,453 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2019-10-03 02:24:50,453 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-10-03 02:24:50,453 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2019-10-03 02:24:50,453 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-03 02:24:50,453 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-03 02:24:50,453 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-03 02:24:50,454 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-03 02:24:50,454 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-03 02:24:51,246 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-03 02:24:51,247 INFO L283 CfgBuilder]: Removed 2 assume(true) statements. [2019-10-03 02:24:51,252 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 02:24:51 BoogieIcfgContainer [2019-10-03 02:24:51,252 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-03 02:24:51,256 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-03 02:24:51,256 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-03 02:24:51,262 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-03 02:24:51,263 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.10 02:24:49" (1/3) ... [2019-10-03 02:24:51,264 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43319a00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 02:24:51, skipping insertion in model container [2019-10-03 02:24:51,265 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:24:50" (2/3) ... [2019-10-03 02:24:51,266 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43319a00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 02:24:51, skipping insertion in model container [2019-10-03 02:24:51,267 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 02:24:51" (3/3) ... [2019-10-03 02:24:51,271 INFO L109 eAbstractionObserver]: Analyzing ICFG test_mutex_unlock_at_exit.i [2019-10-03 02:24:51,285 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-03 02:24:51,300 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-10-03 02:24:51,325 INFO L252 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-10-03 02:24:51,369 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-10-03 02:24:51,369 INFO L378 AbstractCegarLoop]: Hoare is false [2019-10-03 02:24:51,370 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-03 02:24:51,370 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-03 02:24:51,370 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-03 02:24:51,370 INFO L382 AbstractCegarLoop]: Difference is false [2019-10-03 02:24:51,370 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-03 02:24:51,371 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-03 02:24:51,397 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states. [2019-10-03 02:24:51,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-10-03 02:24:51,411 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:24:51,412 INFO L411 BasicCegarLoop]: trace histogram [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] [2019-10-03 02:24:51,415 INFO L418 AbstractCegarLoop]: === Iteration 1 === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:24:51,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:24:51,421 INFO L82 PathProgramCache]: Analyzing trace with hash 677281707, now seen corresponding path program 1 times [2019-10-03 02:24:51,424 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:24:51,504 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:24:51,504 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:24:51,505 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:24:51,505 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:24:51,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:24:51,724 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-03 02:24:51,728 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:24:51,729 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-03 02:24:51,729 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:24:51,734 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-03 02:24:51,748 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-03 02:24:51,749 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-03 02:24:51,752 INFO L87 Difference]: Start difference. First operand 103 states. Second operand 2 states. [2019-10-03 02:24:51,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:24:51,786 INFO L93 Difference]: Finished difference Result 100 states and 109 transitions. [2019-10-03 02:24:51,786 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-03 02:24:51,812 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 30 [2019-10-03 02:24:51,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:24:51,833 INFO L225 Difference]: With dead ends: 100 [2019-10-03 02:24:51,834 INFO L226 Difference]: Without dead ends: 91 [2019-10-03 02:24:51,838 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-03 02:24:51,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2019-10-03 02:24:51,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2019-10-03 02:24:51,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2019-10-03 02:24:51,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 100 transitions. [2019-10-03 02:24:51,896 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 100 transitions. Word has length 30 [2019-10-03 02:24:51,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:24:51,898 INFO L475 AbstractCegarLoop]: Abstraction has 91 states and 100 transitions. [2019-10-03 02:24:51,898 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-03 02:24:51,898 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 100 transitions. [2019-10-03 02:24:51,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-10-03 02:24:51,900 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:24:51,901 INFO L411 BasicCegarLoop]: trace histogram [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] [2019-10-03 02:24:51,901 INFO L418 AbstractCegarLoop]: === Iteration 2 === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:24:51,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:24:51,902 INFO L82 PathProgramCache]: Analyzing trace with hash 392179489, now seen corresponding path program 1 times [2019-10-03 02:24:51,902 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:24:51,906 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:24:51,907 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:24:51,907 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:24:51,907 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:24:51,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:24:52,103 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-03 02:24:52,104 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:24:52,104 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-03 02:24:52,104 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:24:52,106 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-03 02:24:52,107 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-03 02:24:52,108 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-03 02:24:52,108 INFO L87 Difference]: Start difference. First operand 91 states and 100 transitions. Second operand 4 states. [2019-10-03 02:24:52,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:24:52,162 INFO L93 Difference]: Finished difference Result 95 states and 106 transitions. [2019-10-03 02:24:52,162 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-03 02:24:52,163 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 30 [2019-10-03 02:24:52,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:24:52,172 INFO L225 Difference]: With dead ends: 95 [2019-10-03 02:24:52,173 INFO L226 Difference]: Without dead ends: 95 [2019-10-03 02:24:52,175 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-03 02:24:52,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2019-10-03 02:24:52,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95. [2019-10-03 02:24:52,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95 states. [2019-10-03 02:24:52,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 106 transitions. [2019-10-03 02:24:52,212 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 106 transitions. Word has length 30 [2019-10-03 02:24:52,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:24:52,213 INFO L475 AbstractCegarLoop]: Abstraction has 95 states and 106 transitions. [2019-10-03 02:24:52,213 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-03 02:24:52,213 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 106 transitions. [2019-10-03 02:24:52,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-10-03 02:24:52,215 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:24:52,215 INFO L411 BasicCegarLoop]: trace histogram [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] [2019-10-03 02:24:52,216 INFO L418 AbstractCegarLoop]: === Iteration 3 === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:24:52,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:24:52,217 INFO L82 PathProgramCache]: Analyzing trace with hash 1966782794, now seen corresponding path program 1 times [2019-10-03 02:24:52,217 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:24:52,228 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:24:52,229 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:24:52,229 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:24:52,229 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:24:52,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:24:52,452 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-03 02:24:52,453 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:24:52,460 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-03 02:24:52,460 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:24:52,460 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-03 02:24:52,461 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-03 02:24:52,461 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-03 02:24:52,461 INFO L87 Difference]: Start difference. First operand 95 states and 106 transitions. Second operand 5 states. [2019-10-03 02:24:53,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:24:53,165 INFO L93 Difference]: Finished difference Result 173 states and 205 transitions. [2019-10-03 02:24:53,165 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-03 02:24:53,165 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2019-10-03 02:24:53,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:24:53,169 INFO L225 Difference]: With dead ends: 173 [2019-10-03 02:24:53,169 INFO L226 Difference]: Without dead ends: 173 [2019-10-03 02:24:53,170 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-10-03 02:24:53,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2019-10-03 02:24:53,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 138. [2019-10-03 02:24:53,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states. [2019-10-03 02:24:53,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 163 transitions. [2019-10-03 02:24:53,191 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 163 transitions. Word has length 30 [2019-10-03 02:24:53,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:24:53,192 INFO L475 AbstractCegarLoop]: Abstraction has 138 states and 163 transitions. [2019-10-03 02:24:53,192 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-03 02:24:53,193 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 163 transitions. [2019-10-03 02:24:53,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2019-10-03 02:24:53,196 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:24:53,196 INFO L411 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 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] [2019-10-03 02:24:53,197 INFO L418 AbstractCegarLoop]: === Iteration 4 === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:24:53,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:24:53,198 INFO L82 PathProgramCache]: Analyzing trace with hash -1243409077, now seen corresponding path program 1 times [2019-10-03 02:24:53,198 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:24:53,203 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:24:53,203 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:24:53,203 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:24:53,204 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:24:53,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:24:53,309 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 2 proven. 12 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2019-10-03 02:24:53,310 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-03 02:24:53,310 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-10-03 02:24:53,311 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 79 with the following transitions: [2019-10-03 02:24:53,315 INFO L207 CegarAbsIntRunner]: [0], [19], [21], [24], [25], [39], [40], [41], [43], [50], [53], [57], [59], [67], [69], [70], [76], [88], [89], [94], [96], [112], [113], [152], [153], [160], [161], [162], [163], [164], [166], [167], [172], [173], [174], [175], [176], [177], [178], [179], [180], [181], [182], [194], [195], [196] [2019-10-03 02:24:53,404 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-10-03 02:24:53,404 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-03 02:24:53,506 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-10-03 02:24:53,508 INFO L272 AbstractInterpreter]: Visited 2 different actions 2 times. Never merged. Never widened. Performed 12 root evaluator evaluations with a maximum evaluation depth of 0. Performed 12 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 18 variables. [2019-10-03 02:24:53,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:24:53,514 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-10-03 02:24:53,597 INFO L219 lantSequenceWeakener]: Could never weaken! [2019-10-03 02:24:53,597 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-10-03 02:24:53,605 INFO L420 sIntCurrentIteration]: We unified 77 AI predicates to 77 [2019-10-03 02:24:53,605 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-10-03 02:24:53,607 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-03 02:24:53,607 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 4 [2019-10-03 02:24:53,607 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:24:53,608 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-03 02:24:53,609 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-03 02:24:53,609 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-03 02:24:53,609 INFO L87 Difference]: Start difference. First operand 138 states and 163 transitions. Second operand 2 states. [2019-10-03 02:24:53,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:24:53,611 INFO L93 Difference]: Finished difference Result 2 states and 1 transitions. [2019-10-03 02:24:53,612 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-03 02:24:53,612 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 78 [2019-10-03 02:24:53,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:24:53,612 INFO L225 Difference]: With dead ends: 2 [2019-10-03 02:24:53,612 INFO L226 Difference]: Without dead ends: 0 [2019-10-03 02:24:53,613 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-03 02:24:53,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-03 02:24:53,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-03 02:24:53,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-03 02:24:53,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-03 02:24:53,615 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 78 [2019-10-03 02:24:53,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:24:53,617 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-03 02:24:53,618 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-03 02:24:53,618 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-03 02:24:53,618 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-03 02:24:53,626 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.10 02:24:53 BoogieIcfgContainer [2019-10-03 02:24:53,626 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-03 02:24:53,632 INFO L168 Benchmark]: Toolchain (without parser) took 4358.75 ms. Allocated memory was 138.9 MB in the beginning and 223.9 MB in the end (delta: 84.9 MB). Free memory was 84.8 MB in the beginning and 80.8 MB in the end (delta: 4.0 MB). Peak memory consumption was 88.9 MB. Max. memory is 7.1 GB. [2019-10-03 02:24:53,633 INFO L168 Benchmark]: CDTParser took 0.40 ms. Allocated memory is still 138.9 MB. Free memory was 104.9 MB in the beginning and 104.7 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-10-03 02:24:53,636 INFO L168 Benchmark]: CACSL2BoogieTranslator took 916.79 ms. Allocated memory was 138.9 MB in the beginning and 200.8 MB in the end (delta: 61.9 MB). Free memory was 84.6 MB in the beginning and 159.9 MB in the end (delta: -75.3 MB). Peak memory consumption was 21.2 MB. Max. memory is 7.1 GB. [2019-10-03 02:24:53,638 INFO L168 Benchmark]: Boogie Preprocessor took 90.38 ms. Allocated memory is still 200.8 MB. Free memory was 159.9 MB in the beginning and 156.8 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 7.1 GB. [2019-10-03 02:24:53,640 INFO L168 Benchmark]: RCFGBuilder took 967.71 ms. Allocated memory is still 200.8 MB. Free memory was 156.8 MB in the beginning and 97.3 MB in the end (delta: 59.5 MB). Peak memory consumption was 59.5 MB. Max. memory is 7.1 GB. [2019-10-03 02:24:53,642 INFO L168 Benchmark]: TraceAbstraction took 2370.66 ms. Allocated memory was 200.8 MB in the beginning and 223.9 MB in the end (delta: 23.1 MB). Free memory was 96.7 MB in the beginning and 80.8 MB in the end (delta: 15.9 MB). Peak memory consumption was 39.0 MB. Max. memory is 7.1 GB. [2019-10-03 02:24:53,654 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40 ms. Allocated memory is still 138.9 MB. Free memory was 104.9 MB in the beginning and 104.7 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 916.79 ms. Allocated memory was 138.9 MB in the beginning and 200.8 MB in the end (delta: 61.9 MB). Free memory was 84.6 MB in the beginning and 159.9 MB in the end (delta: -75.3 MB). Peak memory consumption was 21.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 90.38 ms. Allocated memory is still 200.8 MB. Free memory was 159.9 MB in the beginning and 156.8 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 967.71 ms. Allocated memory is still 200.8 MB. Free memory was 156.8 MB in the beginning and 97.3 MB in the end (delta: 59.5 MB). Peak memory consumption was 59.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2370.66 ms. Allocated memory was 200.8 MB in the beginning and 223.9 MB in the end (delta: 23.1 MB). Free memory was 96.7 MB in the beginning and 80.8 MB in the end (delta: 15.9 MB). Peak memory consumption was 39.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 660]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 664]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 656]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 24 procedures, 122 locations, 3 error locations. SAFE Result, 2.2s OverallTime, 4 OverallIterations, 5 TraceHistogramMax, 0.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 338 SDtfs, 95 SDslu, 434 SDs, 0 SdLazy, 179 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 95 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=138occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.2s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 1.0 AbsIntWeakeningRatio, 1.7662337662337662 AbsIntAvgWeakeningVarsNumRemoved, 0.0 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 35 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 168 NumberOfCodeBlocks, 168 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 164 ConstructedInterpolants, 0 QuantifiedInterpolants, 16463 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 3 PerfectInterpolantSequences, 63/75 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...