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_double_lock.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-10 01:47:40,657 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-10 01:47:40,659 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-10 01:47:40,671 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-10 01:47:40,671 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-10 01:47:40,672 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-10 01:47:40,674 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-10 01:47:40,675 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-10 01:47:40,677 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-10 01:47:40,678 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-10 01:47:40,679 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-10 01:47:40,680 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-10 01:47:40,680 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-10 01:47:40,681 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-10 01:47:40,682 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-10 01:47:40,683 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-10 01:47:40,684 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-10 01:47:40,685 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-10 01:47:40,687 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-10 01:47:40,689 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-10 01:47:40,690 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-10 01:47:40,691 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-10 01:47:40,692 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-10 01:47:40,693 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-10 01:47:40,695 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-10 01:47:40,696 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-10 01:47:40,696 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-10 01:47:40,697 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-10 01:47:40,697 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-10 01:47:40,698 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-10 01:47:40,699 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-10 01:47:40,699 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-10 01:47:40,700 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-10 01:47:40,701 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-10 01:47:40,702 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-10 01:47:40,702 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-10 01:47:40,703 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-10 01:47:40,703 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-10 01:47:40,703 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-10 01:47:40,704 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-10 01:47:40,705 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-10 01:47:40,705 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 [2019-09-10 01:47:40,720 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-10 01:47:40,720 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-10 01:47:40,721 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-10 01:47:40,721 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-10 01:47:40,722 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-10 01:47:40,722 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-10 01:47:40,722 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-10 01:47:40,722 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-10 01:47:40,722 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-10 01:47:40,723 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-10 01:47:40,723 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-10 01:47:40,723 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-10 01:47:40,724 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-10 01:47:40,724 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-10 01:47:40,724 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-10 01:47:40,724 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-10 01:47:40,724 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-10 01:47:40,725 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-10 01:47:40,725 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-10 01:47:40,725 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-10 01:47:40,725 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-10 01:47:40,725 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-10 01:47:40,726 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-10 01:47:40,726 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 01:47:40,726 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-10 01:47:40,726 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-10 01:47:40,726 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-10 01:47:40,727 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-10 01:47:40,727 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-10 01:47:40,727 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-10 01:47:40,755 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-10 01:47:40,768 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-10 01:47:40,771 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-10 01:47:40,773 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-10 01:47:40,773 INFO L275 PluginConnector]: CDTParser initialized [2019-09-10 01:47:40,774 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-sets/test_mutex_double_lock.i [2019-09-10 01:47:40,837 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/03b0c311f/fd7a53874ed74e6fb61792fa2f78852c/FLAGb88a00737 [2019-09-10 01:47:41,427 INFO L306 CDTParser]: Found 1 translation units. [2019-09-10 01:47:41,428 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-sets/test_mutex_double_lock.i [2019-09-10 01:47:41,453 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/03b0c311f/fd7a53874ed74e6fb61792fa2f78852c/FLAGb88a00737 [2019-09-10 01:47:41,679 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/03b0c311f/fd7a53874ed74e6fb61792fa2f78852c [2019-09-10 01:47:41,690 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-10 01:47:41,692 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-10 01:47:41,696 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-10 01:47:41,696 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-10 01:47:41,700 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-10 01:47:41,701 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 01:47:41" (1/1) ... [2019-09-10 01:47:41,704 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@209d0590 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:47:41, skipping insertion in model container [2019-09-10 01:47:41,704 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 01:47:41" (1/1) ... [2019-09-10 01:47:41,712 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-10 01:47:41,774 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-10 01:47:42,237 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 01:47:42,249 INFO L188 MainTranslator]: Completed pre-run [2019-09-10 01:47:42,333 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 01:47:42,398 INFO L192 MainTranslator]: Completed translation [2019-09-10 01:47:42,398 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:47:42 WrapperNode [2019-09-10 01:47:42,398 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-10 01:47:42,399 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-10 01:47:42,399 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-10 01:47:42,399 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-10 01:47:42,414 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:47:42" (1/1) ... [2019-09-10 01:47:42,414 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:47:42" (1/1) ... [2019-09-10 01:47:42,436 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:47:42" (1/1) ... [2019-09-10 01:47:42,437 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:47:42" (1/1) ... [2019-09-10 01:47:42,481 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:47:42" (1/1) ... [2019-09-10 01:47:42,490 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:47:42" (1/1) ... [2019-09-10 01:47:42,498 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:47:42" (1/1) ... [2019-09-10 01:47:42,505 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-10 01:47:42,513 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-10 01:47:42,513 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-10 01:47:42,513 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-10 01:47:42,514 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:47:42" (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 [2019-09-10 01:47:42,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-10 01:47:42,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-10 01:47:42,569 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-09-10 01:47:42,569 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-09-10 01:47:42,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-09-10 01:47:42,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_successful_malloc [2019-09-10 01:47:42,570 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2019-09-10 01:47:42,570 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2019-09-10 01:47:42,570 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2019-09-10 01:47:42,570 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2019-09-10 01:47:42,570 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2019-09-10 01:47:42,570 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2019-09-10 01:47:42,571 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_empty [2019-09-10 01:47:42,571 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_set [2019-09-10 01:47:42,571 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_add [2019-09-10 01:47:42,571 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_del [2019-09-10 01:47:42,571 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_in_set [2019-09-10 01:47:42,572 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_empty [2019-09-10 01:47:42,572 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-09-10 01:47:42,572 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2019-09-10 01:47:42,572 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2019-09-10 01:47:42,572 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-09-10 01:47:42,572 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2019-09-10 01:47:42,573 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-10 01:47:42,573 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-09-10 01:47:42,573 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-09-10 01:47:42,573 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-09-10 01:47:42,573 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-09-10 01:47:42,573 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-09-10 01:47:42,574 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-09-10 01:47:42,574 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-09-10 01:47:42,574 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-09-10 01:47:42,574 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-09-10 01:47:42,574 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-09-10 01:47:42,574 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-09-10 01:47:42,574 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-09-10 01:47:42,575 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-09-10 01:47:42,575 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-09-10 01:47:42,575 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-09-10 01:47:42,575 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-09-10 01:47:42,575 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-09-10 01:47:42,576 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-09-10 01:47:42,576 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-09-10 01:47:42,576 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-09-10 01:47:42,576 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-09-10 01:47:42,576 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-09-10 01:47:42,576 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-09-10 01:47:42,577 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-09-10 01:47:42,577 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-09-10 01:47:42,577 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-09-10 01:47:42,577 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-09-10 01:47:42,577 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-09-10 01:47:42,577 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-09-10 01:47:42,577 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-09-10 01:47:42,578 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-09-10 01:47:42,578 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-09-10 01:47:42,578 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-09-10 01:47:42,578 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-09-10 01:47:42,578 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-09-10 01:47:42,578 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-09-10 01:47:42,578 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-09-10 01:47:42,579 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-09-10 01:47:42,579 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-09-10 01:47:42,579 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-09-10 01:47:42,579 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-09-10 01:47:42,579 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-09-10 01:47:42,579 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-09-10 01:47:42,580 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-09-10 01:47:42,580 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-09-10 01:47:42,580 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-09-10 01:47:42,580 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-09-10 01:47:42,580 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-09-10 01:47:42,580 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-09-10 01:47:42,580 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-09-10 01:47:42,581 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-09-10 01:47:42,581 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-09-10 01:47:42,581 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-10 01:47:42,581 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-09-10 01:47:42,581 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-09-10 01:47:42,581 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-10 01:47:42,582 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-09-10 01:47:42,582 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-09-10 01:47:42,582 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-09-10 01:47:42,582 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-09-10 01:47:42,582 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-09-10 01:47:42,582 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-09-10 01:47:42,582 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-09-10 01:47:42,583 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-09-10 01:47:42,583 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-09-10 01:47:42,583 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-09-10 01:47:42,583 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-09-10 01:47:42,583 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-09-10 01:47:42,583 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-09-10 01:47:42,584 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-09-10 01:47:42,584 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-09-10 01:47:42,584 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-09-10 01:47:42,584 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-09-10 01:47:42,584 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-09-10 01:47:42,584 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-09-10 01:47:42,584 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-09-10 01:47:42,585 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-09-10 01:47:42,585 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-09-10 01:47:42,585 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-09-10 01:47:42,585 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-09-10 01:47:42,585 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-09-10 01:47:42,585 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-09-10 01:47:42,586 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-09-10 01:47:42,586 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-09-10 01:47:42,586 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-09-10 01:47:42,586 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-09-10 01:47:42,586 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-09-10 01:47:42,586 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-09-10 01:47:42,586 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-09-10 01:47:42,587 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-09-10 01:47:42,587 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-09-10 01:47:42,587 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-09-10 01:47:42,587 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-09-10 01:47:42,587 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-09-10 01:47:42,587 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-09-10 01:47:42,587 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-09-10 01:47:42,588 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-09-10 01:47:42,588 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-09-10 01:47:42,588 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-09-10 01:47:42,588 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-09-10 01:47:42,588 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-09-10 01:47:42,588 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-09-10 01:47:42,589 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-10 01:47:42,589 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-09-10 01:47:42,589 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-10 01:47:42,589 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-09-10 01:47:42,589 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-09-10 01:47:42,589 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-10 01:47:42,590 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_successful_malloc [2019-09-10 01:47:42,590 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2019-09-10 01:47:42,590 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-10 01:47:42,590 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2019-09-10 01:47:42,590 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2019-09-10 01:47:42,590 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2019-09-10 01:47:42,590 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-10 01:47:42,591 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2019-09-10 01:47:42,591 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2019-09-10 01:47:42,591 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_empty [2019-09-10 01:47:42,591 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_set [2019-09-10 01:47:42,591 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_add [2019-09-10 01:47:42,591 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_del [2019-09-10 01:47:42,592 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_in_set [2019-09-10 01:47:42,592 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_empty [2019-09-10 01:47:42,592 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-10 01:47:42,592 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-09-10 01:47:42,592 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2019-09-10 01:47:42,592 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2019-09-10 01:47:42,593 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-09-10 01:47:42,593 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2019-09-10 01:47:42,593 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-10 01:47:42,593 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-10 01:47:42,593 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-10 01:47:42,593 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-09-10 01:47:42,593 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-10 01:47:43,352 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-10 01:47:43,353 INFO L283 CfgBuilder]: Removed 2 assume(true) statements. [2019-09-10 01:47:43,355 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 01:47:43 BoogieIcfgContainer [2019-09-10 01:47:43,355 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-10 01:47:43,357 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-10 01:47:43,357 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-10 01:47:43,360 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-10 01:47:43,361 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.09 01:47:41" (1/3) ... [2019-09-10 01:47:43,362 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7013f87e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 01:47:43, skipping insertion in model container [2019-09-10 01:47:43,362 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:47:42" (2/3) ... [2019-09-10 01:47:43,363 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7013f87e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 01:47:43, skipping insertion in model container [2019-09-10 01:47:43,363 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 01:47:43" (3/3) ... [2019-09-10 01:47:43,365 INFO L109 eAbstractionObserver]: Analyzing ICFG test_mutex_double_lock.i [2019-09-10 01:47:43,376 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-10 01:47:43,387 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-09-10 01:47:43,404 INFO L252 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-09-10 01:47:43,444 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-10 01:47:43,444 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-10 01:47:43,444 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-10 01:47:43,444 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-10 01:47:43,445 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-10 01:47:43,445 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-10 01:47:43,445 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-10 01:47:43,445 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-10 01:47:43,460 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states. [2019-09-10 01:47:43,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-09-10 01:47:43,472 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 01:47:43,472 INFO L399 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] [2019-09-10 01:47:43,475 INFO L418 AbstractCegarLoop]: === Iteration 1 === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 01:47:43,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 01:47:43,481 INFO L82 PathProgramCache]: Analyzing trace with hash -1643511096, now seen corresponding path program 1 times [2019-09-10 01:47:43,483 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 01:47:43,532 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:47:43,532 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 01:47:43,532 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:47:43,532 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 01:47:43,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 01:47:43,714 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-10 01:47:43,717 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 01:47:43,717 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-10 01:47:43,717 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 01:47:43,723 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-10 01:47:43,738 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-10 01:47:43,739 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 01:47:43,742 INFO L87 Difference]: Start difference. First operand 104 states. Second operand 2 states. [2019-09-10 01:47:43,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 01:47:43,794 INFO L93 Difference]: Finished difference Result 101 states and 111 transitions. [2019-09-10 01:47:43,795 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-10 01:47:43,796 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 30 [2019-09-10 01:47:43,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 01:47:43,809 INFO L225 Difference]: With dead ends: 101 [2019-09-10 01:47:43,810 INFO L226 Difference]: Without dead ends: 92 [2019-09-10 01:47:43,813 INFO L628 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 [2019-09-10 01:47:43,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2019-09-10 01:47:43,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2019-09-10 01:47:43,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92 states. [2019-09-10 01:47:43,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 102 transitions. [2019-09-10 01:47:43,865 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 102 transitions. Word has length 30 [2019-09-10 01:47:43,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 01:47:43,867 INFO L475 AbstractCegarLoop]: Abstraction has 92 states and 102 transitions. [2019-09-10 01:47:43,868 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-10 01:47:43,868 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 102 transitions. [2019-09-10 01:47:43,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-09-10 01:47:43,870 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 01:47:43,870 INFO L399 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] [2019-09-10 01:47:43,870 INFO L418 AbstractCegarLoop]: === Iteration 2 === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 01:47:43,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 01:47:43,871 INFO L82 PathProgramCache]: Analyzing trace with hash -1928613314, now seen corresponding path program 1 times [2019-09-10 01:47:43,871 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 01:47:43,873 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:47:43,873 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 01:47:43,873 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:47:43,873 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 01:47:43,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 01:47:44,008 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-10 01:47:44,008 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 01:47:44,008 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-10 01:47:44,008 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 01:47:44,010 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-10 01:47:44,010 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-10 01:47:44,011 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-10 01:47:44,011 INFO L87 Difference]: Start difference. First operand 92 states and 102 transitions. Second operand 4 states. [2019-09-10 01:47:44,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 01:47:44,061 INFO L93 Difference]: Finished difference Result 96 states and 108 transitions. [2019-09-10 01:47:44,061 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-09-10 01:47:44,061 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 30 [2019-09-10 01:47:44,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 01:47:44,069 INFO L225 Difference]: With dead ends: 96 [2019-09-10 01:47:44,069 INFO L226 Difference]: Without dead ends: 96 [2019-09-10 01:47:44,070 INFO L628 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 [2019-09-10 01:47:44,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2019-09-10 01:47:44,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2019-09-10 01:47:44,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2019-09-10 01:47:44,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 108 transitions. [2019-09-10 01:47:44,100 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 108 transitions. Word has length 30 [2019-09-10 01:47:44,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 01:47:44,103 INFO L475 AbstractCegarLoop]: Abstraction has 96 states and 108 transitions. [2019-09-10 01:47:44,103 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-10 01:47:44,103 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 108 transitions. [2019-09-10 01:47:44,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-09-10 01:47:44,104 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 01:47:44,104 INFO L399 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] [2019-09-10 01:47:44,105 INFO L418 AbstractCegarLoop]: === Iteration 3 === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 01:47:44,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 01:47:44,105 INFO L82 PathProgramCache]: Analyzing trace with hash -354010009, now seen corresponding path program 1 times [2019-09-10 01:47:44,105 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 01:47:44,107 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:47:44,107 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 01:47:44,107 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:47:44,107 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 01:47:44,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 01:47:44,274 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-10 01:47:44,274 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 01:47:44,274 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-10 01:47:44,274 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 01:47:44,275 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-10 01:47:44,275 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-10 01:47:44,276 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-10 01:47:44,276 INFO L87 Difference]: Start difference. First operand 96 states and 108 transitions. Second operand 5 states. [2019-09-10 01:47:44,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 01:47:44,764 INFO L93 Difference]: Finished difference Result 175 states and 210 transitions. [2019-09-10 01:47:44,764 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-09-10 01:47:44,765 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2019-09-10 01:47:44,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 01:47:44,768 INFO L225 Difference]: With dead ends: 175 [2019-09-10 01:47:44,768 INFO L226 Difference]: Without dead ends: 175 [2019-09-10 01:47:44,769 INFO L628 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 [2019-09-10 01:47:44,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2019-09-10 01:47:44,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 140. [2019-09-10 01:47:44,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2019-09-10 01:47:44,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 168 transitions. [2019-09-10 01:47:44,791 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 168 transitions. Word has length 30 [2019-09-10 01:47:44,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 01:47:44,792 INFO L475 AbstractCegarLoop]: Abstraction has 140 states and 168 transitions. [2019-09-10 01:47:44,792 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-10 01:47:44,792 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 168 transitions. [2019-09-10 01:47:44,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2019-09-10 01:47:44,798 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 01:47:44,799 INFO L399 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] [2019-09-10 01:47:44,799 INFO L418 AbstractCegarLoop]: === Iteration 4 === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 01:47:44,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 01:47:44,800 INFO L82 PathProgramCache]: Analyzing trace with hash 857482600, now seen corresponding path program 1 times [2019-09-10 01:47:44,800 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 01:47:44,802 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:47:44,802 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 01:47:44,802 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:47:44,802 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 01:47:44,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 01:47:44,884 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 2 proven. 12 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2019-09-10 01:47:44,885 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 01:47:44,885 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 01:47:44,886 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 79 with the following transitions: [2019-09-10 01:47:44,888 INFO L207 CegarAbsIntRunner]: [0], [19], [21], [24], [25], [39], [40], [41], [43], [50], [53], [57], [59], [67], [69], [70], [76], [88], [89], [94], [96], [113], [114], [153], [154], [161], [162], [163], [164], [165], [167], [168], [173], [174], [175], [176], [177], [178], [179], [180], [181], [182], [183], [197], [198], [199] [2019-09-10 01:47:44,930 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 01:47:44,930 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 01:47:44,983 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-09-10 01:47:44,984 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. [2019-09-10 01:47:44,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 01:47:44,989 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-09-10 01:47:45,036 INFO L219 lantSequenceWeakener]: Could never weaken! [2019-09-10 01:47:45,037 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-09-10 01:47:45,044 INFO L420 sIntCurrentIteration]: We unified 77 AI predicates to 77 [2019-09-10 01:47:45,044 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-09-10 01:47:45,045 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-10 01:47:45,045 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 4 [2019-09-10 01:47:45,046 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 01:47:45,047 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-10 01:47:45,047 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-10 01:47:45,048 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 01:47:45,048 INFO L87 Difference]: Start difference. First operand 140 states and 168 transitions. Second operand 2 states. [2019-09-10 01:47:45,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 01:47:45,050 INFO L93 Difference]: Finished difference Result 2 states and 1 transitions. [2019-09-10 01:47:45,050 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-10 01:47:45,050 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 78 [2019-09-10 01:47:45,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 01:47:45,051 INFO L225 Difference]: With dead ends: 2 [2019-09-10 01:47:45,051 INFO L226 Difference]: Without dead ends: 0 [2019-09-10 01:47:45,052 INFO L628 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 [2019-09-10 01:47:45,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-10 01:47:45,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-10 01:47:45,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-10 01:47:45,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-10 01:47:45,053 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 78 [2019-09-10 01:47:45,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 01:47:45,053 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-10 01:47:45,053 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-10 01:47:45,053 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-10 01:47:45,054 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-10 01:47:45,059 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.09 01:47:45 BoogieIcfgContainer [2019-09-10 01:47:45,060 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-10 01:47:45,064 INFO L168 Benchmark]: Toolchain (without parser) took 3369.78 ms. Allocated memory was 141.0 MB in the beginning and 229.1 MB in the end (delta: 88.1 MB). Free memory was 85.6 MB in the beginning and 90.4 MB in the end (delta: -4.9 MB). Peak memory consumption was 83.2 MB. Max. memory is 7.1 GB. [2019-09-10 01:47:45,065 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 141.0 MB. Free memory was 105.8 MB in the beginning and 105.6 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-10 01:47:45,066 INFO L168 Benchmark]: CACSL2BoogieTranslator took 702.82 ms. Allocated memory was 141.0 MB in the beginning and 201.9 MB in the end (delta: 60.8 MB). Free memory was 85.3 MB in the beginning and 161.3 MB in the end (delta: -75.9 MB). Peak memory consumption was 21.2 MB. Max. memory is 7.1 GB. [2019-09-10 01:47:45,068 INFO L168 Benchmark]: Boogie Preprocessor took 106.43 ms. Allocated memory is still 201.9 MB. Free memory was 161.3 MB in the beginning and 157.7 MB in the end (delta: 3.6 MB). Peak memory consumption was 3.6 MB. Max. memory is 7.1 GB. [2019-09-10 01:47:45,070 INFO L168 Benchmark]: RCFGBuilder took 842.77 ms. Allocated memory is still 201.9 MB. Free memory was 157.7 MB in the beginning and 99.8 MB in the end (delta: 57.9 MB). Peak memory consumption was 57.9 MB. Max. memory is 7.1 GB. [2019-09-10 01:47:45,072 INFO L168 Benchmark]: TraceAbstraction took 1703.27 ms. Allocated memory was 201.9 MB in the beginning and 229.1 MB in the end (delta: 27.3 MB). Free memory was 99.8 MB in the beginning and 90.4 MB in the end (delta: 9.3 MB). Peak memory consumption was 36.6 MB. Max. memory is 7.1 GB. [2019-09-10 01:47:45,082 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 141.0 MB. Free memory was 105.8 MB in the beginning and 105.6 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 702.82 ms. Allocated memory was 141.0 MB in the beginning and 201.9 MB in the end (delta: 60.8 MB). Free memory was 85.3 MB in the beginning and 161.3 MB in the end (delta: -75.9 MB). Peak memory consumption was 21.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 106.43 ms. Allocated memory is still 201.9 MB. Free memory was 161.3 MB in the beginning and 157.7 MB in the end (delta: 3.6 MB). Peak memory consumption was 3.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 842.77 ms. Allocated memory is still 201.9 MB. Free memory was 157.7 MB in the beginning and 99.8 MB in the end (delta: 57.9 MB). Peak memory consumption was 57.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1703.27 ms. Allocated memory was 201.9 MB in the beginning and 229.1 MB in the end (delta: 27.3 MB). Free memory was 99.8 MB in the beginning and 90.4 MB in the end (delta: 9.3 MB). Peak memory consumption was 36.6 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, 123 locations, 3 error locations. SAFE Result, 1.6s OverallTime, 4 OverallIterations, 5 TraceHistogramMax, 0.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 313 SDtfs, 97 SDslu, 392 SDs, 0 SdLazy, 169 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 95 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=140occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.1s 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, 0.3s 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...