/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -tc ../../../trunk/examples/toolchains/AutomizerC.xml -i ../sv-benchmarks/c/ldv-sets/test_mutex_double_unlock.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-02 01:02:41,658 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-02 01:02:41,660 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-02 01:02:41,702 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2023-04-02 01:02:41,754 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-02 01:02:41,754 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-02 01:02:41,755 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-02 01:02:41,756 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-04-02 01:02:41,786 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-02 01:02:41,786 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-02 01:02:41,787 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-02 01:02:41,787 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-02 01:02:41,788 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-02 01:02:41,788 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-02 01:02:41,789 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-04-02 01:02:41,789 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-04-02 01:02:41,789 INFO L138 SettingsManager]: * Use SBE=true [2023-04-02 01:02:41,789 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-02 01:02:41,790 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-02 01:02:41,790 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-02 01:02:41,790 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-02 01:02:41,790 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-02 01:02:41,790 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-02 01:02:41,790 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-02 01:02:41,790 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-02 01:02:41,791 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-02 01:02:41,791 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-02 01:02:41,791 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-02 01:02:41,791 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-02 01:02:41,791 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-02 01:02:41,791 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-04-02 01:02:41,791 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-02 01:02:41,791 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 01:02:41,792 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-02 01:02:41,792 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-02 01:02:41,792 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-02 01:02:41,792 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-04-02 01:02:41,792 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-02 01:02:41,792 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-04-02 01:02:41,792 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-02 01:02:41,793 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-04-02 01:02:41,793 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-04-02 01:02:41,793 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-04-02 01:02:41,793 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-04-02 01:02:42,005 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-02 01:02:42,027 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-02 01:02:42,029 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-02 01:02:42,030 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-02 01:02:42,031 INFO L275 PluginConnector]: CDTParser initialized [2023-04-02 01:02:42,032 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-sets/test_mutex_double_unlock.i [2023-04-02 01:02:43,164 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-02 01:02:43,444 INFO L351 CDTParser]: Found 1 translation units. [2023-04-02 01:02:43,445 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-sets/test_mutex_double_unlock.i [2023-04-02 01:02:43,460 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b2644868c/8cd8ca13ac334f1590050b5f772a950c/FLAGf60de604f [2023-04-02 01:02:43,723 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b2644868c/8cd8ca13ac334f1590050b5f772a950c [2023-04-02 01:02:43,727 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-02 01:02:43,729 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-02 01:02:43,730 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-02 01:02:43,731 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-02 01:02:43,734 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-02 01:02:43,734 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 01:02:43" (1/1) ... [2023-04-02 01:02:43,736 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6cf94aed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 01:02:43, skipping insertion in model container [2023-04-02 01:02:43,736 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 01:02:43" (1/1) ... [2023-04-02 01:02:43,744 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-02 01:02:43,782 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-02 01:02:44,064 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-sets/test_mutex_double_unlock.i[25842,25855] [2023-04-02 01:02:44,069 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-sets/test_mutex_double_unlock.i[25967,25980] [2023-04-02 01:02:44,071 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-sets/test_mutex_double_unlock.i[26082,26095] [2023-04-02 01:02:44,073 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 01:02:44,085 INFO L203 MainTranslator]: Completed pre-run [2023-04-02 01:02:44,152 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-sets/test_mutex_double_unlock.i[25842,25855] [2023-04-02 01:02:44,152 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-sets/test_mutex_double_unlock.i[25967,25980] [2023-04-02 01:02:44,153 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-sets/test_mutex_double_unlock.i[26082,26095] [2023-04-02 01:02:44,154 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 01:02:44,187 INFO L208 MainTranslator]: Completed translation [2023-04-02 01:02:44,187 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 01:02:44 WrapperNode [2023-04-02 01:02:44,187 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-02 01:02:44,189 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-02 01:02:44,189 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-02 01:02:44,189 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-02 01:02:44,198 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 01:02:44" (1/1) ... [2023-04-02 01:02:44,198 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 01:02:44" (1/1) ... [2023-04-02 01:02:44,211 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 01:02:44" (1/1) ... [2023-04-02 01:02:44,211 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 01:02:44" (1/1) ... [2023-04-02 01:02:44,242 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 01:02:44" (1/1) ... [2023-04-02 01:02:44,250 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 01:02:44" (1/1) ... [2023-04-02 01:02:44,257 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 01:02:44" (1/1) ... [2023-04-02 01:02:44,260 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 01:02:44" (1/1) ... [2023-04-02 01:02:44,265 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-02 01:02:44,266 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-02 01:02:44,266 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-02 01:02:44,266 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-02 01:02:44,267 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 01:02:44" (1/1) ... [2023-04-02 01:02:44,274 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 01:02:44,286 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 01:02:44,310 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-04-02 01:02:44,315 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-04-02 01:02:44,352 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-02 01:02:44,353 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-02 01:02:44,353 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2023-04-02 01:02:44,353 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2023-04-02 01:02:44,354 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-02 01:02:44,355 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-04-02 01:02:44,355 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-04-02 01:02:44,355 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_successful_malloc [2023-04-02 01:02:44,355 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2023-04-02 01:02:44,356 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2023-04-02 01:02:44,356 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2023-04-02 01:02:44,356 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2023-04-02 01:02:44,356 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2023-04-02 01:02:44,356 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2023-04-02 01:02:44,356 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_empty [2023-04-02 01:02:44,356 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_set [2023-04-02 01:02:44,356 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_add [2023-04-02 01:02:44,357 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_del [2023-04-02 01:02:44,357 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_in_set [2023-04-02 01:02:44,357 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_empty [2023-04-02 01:02:44,357 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2023-04-02 01:02:44,358 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2023-04-02 01:02:44,358 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-04-02 01:02:44,358 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-04-02 01:02:44,358 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2023-04-02 01:02:44,358 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-02 01:02:44,358 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2023-04-02 01:02:44,359 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2023-04-02 01:02:44,359 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2023-04-02 01:02:44,359 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2023-04-02 01:02:44,359 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2023-04-02 01:02:44,360 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2023-04-02 01:02:44,360 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2023-04-02 01:02:44,360 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2023-04-02 01:02:44,360 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2023-04-02 01:02:44,360 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2023-04-02 01:02:44,361 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2023-04-02 01:02:44,361 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2023-04-02 01:02:44,361 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2023-04-02 01:02:44,361 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2023-04-02 01:02:44,361 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2023-04-02 01:02:44,361 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2023-04-02 01:02:44,361 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2023-04-02 01:02:44,362 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2023-04-02 01:02:44,362 INFO L130 BoogieDeclarations]: Found specification of procedure select [2023-04-02 01:02:44,362 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2023-04-02 01:02:44,362 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2023-04-02 01:02:44,363 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2023-04-02 01:02:44,363 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2023-04-02 01:02:44,363 INFO L130 BoogieDeclarations]: Found specification of procedure random [2023-04-02 01:02:44,363 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2023-04-02 01:02:44,363 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2023-04-02 01:02:44,363 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2023-04-02 01:02:44,364 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2023-04-02 01:02:44,364 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2023-04-02 01:02:44,364 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2023-04-02 01:02:44,364 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2023-04-02 01:02:44,364 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2023-04-02 01:02:44,364 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2023-04-02 01:02:44,364 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2023-04-02 01:02:44,364 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2023-04-02 01:02:44,364 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2023-04-02 01:02:44,365 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2023-04-02 01:02:44,365 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2023-04-02 01:02:44,365 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2023-04-02 01:02:44,365 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2023-04-02 01:02:44,365 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2023-04-02 01:02:44,365 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2023-04-02 01:02:44,366 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2023-04-02 01:02:44,366 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2023-04-02 01:02:44,366 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2023-04-02 01:02:44,366 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2023-04-02 01:02:44,366 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2023-04-02 01:02:44,366 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2023-04-02 01:02:44,366 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2023-04-02 01:02:44,366 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2023-04-02 01:02:44,366 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2023-04-02 01:02:44,366 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2023-04-02 01:02:44,367 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-04-02 01:02:44,367 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2023-04-02 01:02:44,367 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2023-04-02 01:02:44,367 INFO L130 BoogieDeclarations]: Found specification of procedure free [2023-04-02 01:02:44,367 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2023-04-02 01:02:44,367 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2023-04-02 01:02:44,367 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2023-04-02 01:02:44,368 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2023-04-02 01:02:44,368 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-02 01:02:44,368 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2023-04-02 01:02:44,368 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2023-04-02 01:02:44,368 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2023-04-02 01:02:44,368 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2023-04-02 01:02:44,368 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2023-04-02 01:02:44,368 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2023-04-02 01:02:44,368 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2023-04-02 01:02:44,369 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2023-04-02 01:02:44,369 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2023-04-02 01:02:44,369 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2023-04-02 01:02:44,369 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2023-04-02 01:02:44,369 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2023-04-02 01:02:44,369 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2023-04-02 01:02:44,369 INFO L130 BoogieDeclarations]: Found specification of procedure system [2023-04-02 01:02:44,369 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2023-04-02 01:02:44,369 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2023-04-02 01:02:44,370 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2023-04-02 01:02:44,370 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2023-04-02 01:02:44,370 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2023-04-02 01:02:44,370 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2023-04-02 01:02:44,370 INFO L130 BoogieDeclarations]: Found specification of procedure div [2023-04-02 01:02:44,370 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2023-04-02 01:02:44,370 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2023-04-02 01:02:44,371 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2023-04-02 01:02:44,371 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2023-04-02 01:02:44,371 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2023-04-02 01:02:44,371 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2023-04-02 01:02:44,371 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2023-04-02 01:02:44,371 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2023-04-02 01:02:44,371 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2023-04-02 01:02:44,372 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2023-04-02 01:02:44,372 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2023-04-02 01:02:44,372 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2023-04-02 01:02:44,372 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2023-04-02 01:02:44,372 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2023-04-02 01:02:44,372 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2023-04-02 01:02:44,373 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2023-04-02 01:02:44,373 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2023-04-02 01:02:44,387 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2023-04-02 01:02:44,393 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2023-04-02 01:02:44,393 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2023-04-02 01:02:44,393 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-02 01:02:44,393 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2023-04-02 01:02:44,393 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2023-04-02 01:02:44,394 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-02 01:02:44,394 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-02 01:02:44,394 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-04-02 01:02:44,394 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-02 01:02:44,394 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-04-02 01:02:44,394 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-04-02 01:02:44,395 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_successful_malloc [2023-04-02 01:02:44,395 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2023-04-02 01:02:44,395 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-04-02 01:02:44,395 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2023-04-02 01:02:44,395 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2023-04-02 01:02:44,395 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2023-04-02 01:02:44,395 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-04-02 01:02:44,395 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2023-04-02 01:02:44,395 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2023-04-02 01:02:44,395 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_empty [2023-04-02 01:02:44,395 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_set [2023-04-02 01:02:44,396 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_add [2023-04-02 01:02:44,396 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_del [2023-04-02 01:02:44,396 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_in_set [2023-04-02 01:02:44,396 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_empty [2023-04-02 01:02:44,396 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-02 01:02:44,396 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2023-04-02 01:02:44,397 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2023-04-02 01:02:44,397 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-04-02 01:02:44,397 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-04-02 01:02:44,397 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2023-04-02 01:02:44,397 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-02 01:02:44,397 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-02 01:02:44,397 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-02 01:02:44,397 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-04-02 01:02:44,397 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-02 01:02:44,397 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-02 01:02:44,397 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-02 01:02:44,706 INFO L236 CfgBuilder]: Building ICFG [2023-04-02 01:02:44,708 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-02 01:02:44,976 INFO L277 CfgBuilder]: Performing block encoding [2023-04-02 01:02:44,983 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-02 01:02:44,983 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-04-02 01:02:44,985 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 01:02:44 BoogieIcfgContainer [2023-04-02 01:02:44,985 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-02 01:02:44,987 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-02 01:02:44,987 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-02 01:02:44,996 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-02 01:02:44,996 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.04 01:02:43" (1/3) ... [2023-04-02 01:02:44,997 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28130ccb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 01:02:44, skipping insertion in model container [2023-04-02 01:02:44,997 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 01:02:44" (2/3) ... [2023-04-02 01:02:44,997 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28130ccb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 01:02:44, skipping insertion in model container [2023-04-02 01:02:44,997 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 01:02:44" (3/3) ... [2023-04-02 01:02:45,001 INFO L112 eAbstractionObserver]: Analyzing ICFG test_mutex_double_unlock.i [2023-04-02 01:02:45,015 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-02 01:02:45,016 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2023-04-02 01:02:45,085 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-02 01:02:45,091 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@37ebb4d9, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-04-02 01:02:45,091 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-04-02 01:02:45,095 INFO L276 IsEmpty]: Start isEmpty. Operand has 110 states, 63 states have (on average 1.2222222222222223) internal successors, (77), 67 states have internal predecessors, (77), 24 states have call successors, (24), 18 states have call predecessors, (24), 18 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-04-02 01:02:45,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-04-02 01:02:45,102 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 01:02:45,103 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-04-02 01:02:45,103 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 01:02:45,107 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 01:02:45,107 INFO L85 PathProgramCache]: Analyzing trace with hash -1577647300, now seen corresponding path program 1 times [2023-04-02 01:02:45,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 01:02:45,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702659233] [2023-04-02 01:02:45,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 01:02:45,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 01:02:45,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:02:45,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 01:02:45,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:02:45,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 01:02:45,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:02:45,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 01:02:45,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:02:45,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 01:02:45,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:02:45,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 01:02:45,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:02:45,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 01:02:45,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:02:45,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-04-02 01:02:45,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:02:45,399 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-04-02 01:02:45,399 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 01:02:45,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1702659233] [2023-04-02 01:02:45,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1702659233] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 01:02:45,400 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 01:02:45,400 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-04-02 01:02:45,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157923787] [2023-04-02 01:02:45,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 01:02:45,406 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-02 01:02:45,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 01:02:45,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-02 01:02:45,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-04-02 01:02:45,432 INFO L87 Difference]: Start difference. First operand has 110 states, 63 states have (on average 1.2222222222222223) internal successors, (77), 67 states have internal predecessors, (77), 24 states have call successors, (24), 18 states have call predecessors, (24), 18 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) Second operand has 4 states, 4 states have (on average 4.75) internal successors, (19), 2 states have internal predecessors, (19), 2 states have call successors, (9), 4 states have call predecessors, (9), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-04-02 01:02:45,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 01:02:45,825 INFO L93 Difference]: Finished difference Result 217 states and 268 transitions. [2023-04-02 01:02:45,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-02 01:02:45,827 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 2 states have internal predecessors, (19), 2 states have call successors, (9), 4 states have call predecessors, (9), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 42 [2023-04-02 01:02:45,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 01:02:45,837 INFO L225 Difference]: With dead ends: 217 [2023-04-02 01:02:45,838 INFO L226 Difference]: Without dead ends: 111 [2023-04-02 01:02:45,842 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-04-02 01:02:45,848 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 143 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-04-02 01:02:45,849 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [155 Valid, 7 Invalid, 219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-04-02 01:02:45,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2023-04-02 01:02:45,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 98. [2023-04-02 01:02:45,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 56 states have (on average 1.125) internal successors, (63), 59 states have internal predecessors, (63), 24 states have call successors, (24), 18 states have call predecessors, (24), 15 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2023-04-02 01:02:45,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 108 transitions. [2023-04-02 01:02:45,922 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 108 transitions. Word has length 42 [2023-04-02 01:02:45,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 01:02:45,923 INFO L495 AbstractCegarLoop]: Abstraction has 98 states and 108 transitions. [2023-04-02 01:02:45,923 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 2 states have internal predecessors, (19), 2 states have call successors, (9), 4 states have call predecessors, (9), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-04-02 01:02:45,923 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 108 transitions. [2023-04-02 01:02:45,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-04-02 01:02:45,926 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 01:02:45,926 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-04-02 01:02:45,926 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-02 01:02:45,926 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 01:02:45,929 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 01:02:45,930 INFO L85 PathProgramCache]: Analyzing trace with hash 1824276466, now seen corresponding path program 1 times [2023-04-02 01:02:45,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 01:02:45,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [322340743] [2023-04-02 01:02:45,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 01:02:45,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 01:02:45,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:02:46,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 01:02:46,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:02:46,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 01:02:46,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:02:46,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 01:02:46,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:02:46,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 01:02:46,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:02:46,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 01:02:46,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:02:46,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 01:02:46,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:02:46,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-04-02 01:02:46,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:02:46,214 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-04-02 01:02:46,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 01:02:46,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [322340743] [2023-04-02 01:02:46,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [322340743] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 01:02:46,216 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 01:02:46,216 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-04-02 01:02:46,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105737208] [2023-04-02 01:02:46,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 01:02:46,218 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-02 01:02:46,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 01:02:46,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-02 01:02:46,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-04-02 01:02:46,222 INFO L87 Difference]: Start difference. First operand 98 states and 108 transitions. Second operand has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2023-04-02 01:02:46,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 01:02:46,657 INFO L93 Difference]: Finished difference Result 117 states and 134 transitions. [2023-04-02 01:02:46,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-02 01:02:46,657 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) Word has length 42 [2023-04-02 01:02:46,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 01:02:46,659 INFO L225 Difference]: With dead ends: 117 [2023-04-02 01:02:46,659 INFO L226 Difference]: Without dead ends: 115 [2023-04-02 01:02:46,660 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2023-04-02 01:02:46,661 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 142 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 352 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 352 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-04-02 01:02:46,661 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [153 Valid, 7 Invalid, 422 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 352 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-04-02 01:02:46,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2023-04-02 01:02:46,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 102. [2023-04-02 01:02:46,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 59 states have (on average 1.11864406779661) internal successors, (66), 62 states have internal predecessors, (66), 24 states have call successors, (24), 18 states have call predecessors, (24), 16 states have return successors, (24), 22 states have call predecessors, (24), 21 states have call successors, (24) [2023-04-02 01:02:46,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 114 transitions. [2023-04-02 01:02:46,679 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 114 transitions. Word has length 42 [2023-04-02 01:02:46,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 01:02:46,680 INFO L495 AbstractCegarLoop]: Abstraction has 102 states and 114 transitions. [2023-04-02 01:02:46,680 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2023-04-02 01:02:46,680 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 114 transitions. [2023-04-02 01:02:46,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-04-02 01:02:46,681 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 01:02:46,681 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-04-02 01:02:46,681 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-02 01:02:46,681 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 01:02:46,682 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 01:02:46,682 INFO L85 PathProgramCache]: Analyzing trace with hash -896087525, now seen corresponding path program 1 times [2023-04-02 01:02:46,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 01:02:46,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832598852] [2023-04-02 01:02:46,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 01:02:46,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 01:02:46,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:02:47,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 01:02:47,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:02:47,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 01:02:47,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:02:47,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 01:02:47,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:02:47,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 01:02:47,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:02:47,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 01:02:47,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:02:47,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 01:02:47,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:02:47,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-04-02 01:02:47,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:02:47,123 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-04-02 01:02:47,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 01:02:47,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832598852] [2023-04-02 01:02:47,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [832598852] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 01:02:47,123 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 01:02:47,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-04-02 01:02:47,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215495090] [2023-04-02 01:02:47,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 01:02:47,124 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-04-02 01:02:47,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 01:02:47,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-04-02 01:02:47,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-04-02 01:02:47,125 INFO L87 Difference]: Start difference. First operand 102 states and 114 transitions. Second operand has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 5 states have internal predecessors, (19), 2 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2023-04-02 01:02:47,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 01:02:47,998 INFO L93 Difference]: Finished difference Result 288 states and 346 transitions. [2023-04-02 01:02:47,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-04-02 01:02:47,999 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 5 states have internal predecessors, (19), 2 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) Word has length 42 [2023-04-02 01:02:47,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 01:02:48,001 INFO L225 Difference]: With dead ends: 288 [2023-04-02 01:02:48,001 INFO L226 Difference]: Without dead ends: 200 [2023-04-02 01:02:48,002 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=90, Invalid=182, Unknown=0, NotChecked=0, Total=272 [2023-04-02 01:02:48,003 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 282 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 595 mSolverCounterSat, 133 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 291 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 728 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 133 IncrementalHoareTripleChecker+Valid, 595 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-04-02 01:02:48,003 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [291 Valid, 6 Invalid, 728 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [133 Valid, 595 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-04-02 01:02:48,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2023-04-02 01:02:48,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 163. [2023-04-02 01:02:48,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 98 states have (on average 1.163265306122449) internal successors, (114), 104 states have internal predecessors, (114), 34 states have call successors, (34), 25 states have call predecessors, (34), 28 states have return successors, (46), 33 states have call predecessors, (46), 31 states have call successors, (46) [2023-04-02 01:02:48,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 194 transitions. [2023-04-02 01:02:48,033 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 194 transitions. Word has length 42 [2023-04-02 01:02:48,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 01:02:48,034 INFO L495 AbstractCegarLoop]: Abstraction has 163 states and 194 transitions. [2023-04-02 01:02:48,034 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 5 states have internal predecessors, (19), 2 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2023-04-02 01:02:48,034 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 194 transitions. [2023-04-02 01:02:48,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-04-02 01:02:48,037 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 01:02:48,037 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-04-02 01:02:48,037 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-02 01:02:48,037 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 01:02:48,037 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 01:02:48,038 INFO L85 PathProgramCache]: Analyzing trace with hash 1630164508, now seen corresponding path program 1 times [2023-04-02 01:02:48,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 01:02:48,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [551632567] [2023-04-02 01:02:48,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 01:02:48,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 01:02:48,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:02:48,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 01:02:48,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:02:48,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 01:02:48,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:02:48,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 01:02:48,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:02:48,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 01:02:48,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:02:48,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 01:02:48,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:02:48,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 01:02:48,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:02:48,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-04-02 01:02:48,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:02:48,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 01:02:48,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:02:48,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 01:02:48,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:02:48,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 01:02:48,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:02:48,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-04-02 01:02:48,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:02:48,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 01:02:48,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:02:48,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 01:02:48,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:02:48,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 01:02:48,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:02:48,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-04-02 01:02:48,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:02:48,298 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 2 proven. 12 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2023-04-02 01:02:48,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 01:02:48,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [551632567] [2023-04-02 01:02:48,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [551632567] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 01:02:48,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1838239951] [2023-04-02 01:02:48,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 01:02:48,299 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 01:02:48,299 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 01:02:48,309 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 01:02:48,328 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-04-02 01:02:48,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:02:48,493 INFO L262 TraceCheckSpWp]: Trace formula consists of 473 conjuncts, 5 conjunts are in the unsatisfiable core [2023-04-02 01:02:48,499 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 01:02:48,615 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-04-02 01:02:48,616 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 01:02:48,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1838239951] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 01:02:48,616 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 01:02:48,616 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 7 [2023-04-02 01:02:48,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572597771] [2023-04-02 01:02:48,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 01:02:48,617 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-02 01:02:48,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 01:02:48,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-02 01:02:48,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-04-02 01:02:48,618 INFO L87 Difference]: Start difference. First operand 163 states and 194 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) [2023-04-02 01:02:48,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 01:02:48,650 INFO L93 Difference]: Finished difference Result 294 states and 350 transitions. [2023-04-02 01:02:48,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-04-02 01:02:48,651 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) Word has length 90 [2023-04-02 01:02:48,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 01:02:48,653 INFO L225 Difference]: With dead ends: 294 [2023-04-02 01:02:48,653 INFO L226 Difference]: Without dead ends: 169 [2023-04-02 01:02:48,654 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 118 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-04-02 01:02:48,655 INFO L413 NwaCegarLoop]: 106 mSDtfsCounter, 0 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 312 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-02 01:02:48,655 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 312 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-02 01:02:48,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2023-04-02 01:02:48,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 169. [2023-04-02 01:02:48,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 103 states have (on average 1.1553398058252426) internal successors, (119), 108 states have internal predecessors, (119), 34 states have call successors, (34), 25 states have call predecessors, (34), 29 states have return successors, (47), 35 states have call predecessors, (47), 31 states have call successors, (47) [2023-04-02 01:02:48,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 200 transitions. [2023-04-02 01:02:48,682 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 200 transitions. Word has length 90 [2023-04-02 01:02:48,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 01:02:48,682 INFO L495 AbstractCegarLoop]: Abstraction has 169 states and 200 transitions. [2023-04-02 01:02:48,682 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) [2023-04-02 01:02:48,682 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 200 transitions. [2023-04-02 01:02:48,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-04-02 01:02:48,684 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 01:02:48,684 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-04-02 01:02:48,700 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-04-02 01:02:48,894 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 01:02:48,895 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 01:02:48,895 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 01:02:48,895 INFO L85 PathProgramCache]: Analyzing trace with hash 96077806, now seen corresponding path program 1 times [2023-04-02 01:02:48,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 01:02:48,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015238785] [2023-04-02 01:02:48,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 01:02:48,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 01:02:48,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:02:49,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 01:02:49,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:02:49,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 01:02:49,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:02:49,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 01:02:49,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:02:49,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 01:02:49,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:02:49,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 01:02:49,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:02:49,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 01:02:49,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:02:49,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-04-02 01:02:49,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:02:49,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 01:02:49,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:02:49,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 01:02:49,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:02:49,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 01:02:49,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:02:49,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-04-02 01:02:49,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:02:49,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 01:02:49,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:02:49,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 01:02:49,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:02:49,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 01:02:49,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:02:49,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-04-02 01:02:49,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:02:49,617 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2023-04-02 01:02:49,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 01:02:49,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1015238785] [2023-04-02 01:02:49,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1015238785] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 01:02:49,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1726111826] [2023-04-02 01:02:49,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 01:02:49,618 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 01:02:49,618 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 01:02:49,619 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 01:02:49,648 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-04-02 01:02:49,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:02:49,805 INFO L262 TraceCheckSpWp]: Trace formula consists of 483 conjuncts, 57 conjunts are in the unsatisfiable core [2023-04-02 01:02:49,810 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 01:02:50,589 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-04-02 01:02:50,590 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 01:02:50,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1726111826] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 01:02:50,591 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 01:02:50,591 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [11] total 19 [2023-04-02 01:02:50,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879307726] [2023-04-02 01:02:50,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 01:02:50,594 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 01:02:50,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 01:02:50,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 01:02:50,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=291, Unknown=0, NotChecked=0, Total=342 [2023-04-02 01:02:50,595 INFO L87 Difference]: Start difference. First operand 169 states and 200 transitions. Second operand has 10 states, 9 states have (on average 4.666666666666667) internal successors, (42), 9 states have internal predecessors, (42), 5 states have call successors, (15), 5 states have call predecessors, (15), 7 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) [2023-04-02 01:02:51,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 01:02:51,556 INFO L93 Difference]: Finished difference Result 363 states and 430 transitions. [2023-04-02 01:02:51,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-04-02 01:02:51,556 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 4.666666666666667) internal successors, (42), 9 states have internal predecessors, (42), 5 states have call successors, (15), 5 states have call predecessors, (15), 7 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) Word has length 90 [2023-04-02 01:02:51,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 01:02:51,559 INFO L225 Difference]: With dead ends: 363 [2023-04-02 01:02:51,559 INFO L226 Difference]: Without dead ends: 224 [2023-04-02 01:02:51,561 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 180 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=184, Invalid=872, Unknown=0, NotChecked=0, Total=1056 [2023-04-02 01:02:51,561 INFO L413 NwaCegarLoop]: 83 mSDtfsCounter, 268 mSDsluCounter, 260 mSDsCounter, 0 mSdLazyCounter, 758 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 280 SdHoareTripleChecker+Valid, 343 SdHoareTripleChecker+Invalid, 845 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 758 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-04-02 01:02:51,562 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [280 Valid, 343 Invalid, 845 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 758 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-04-02 01:02:51,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2023-04-02 01:02:51,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 161. [2023-04-02 01:02:51,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 101 states have (on average 1.1386138613861385) internal successors, (115), 106 states have internal predecessors, (115), 31 states have call successors, (31), 25 states have call predecessors, (31), 26 states have return successors, (39), 29 states have call predecessors, (39), 28 states have call successors, (39) [2023-04-02 01:02:51,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 185 transitions. [2023-04-02 01:02:51,590 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 185 transitions. Word has length 90 [2023-04-02 01:02:51,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 01:02:51,590 INFO L495 AbstractCegarLoop]: Abstraction has 161 states and 185 transitions. [2023-04-02 01:02:51,591 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 4.666666666666667) internal successors, (42), 9 states have internal predecessors, (42), 5 states have call successors, (15), 5 states have call predecessors, (15), 7 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) [2023-04-02 01:02:51,591 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 185 transitions. [2023-04-02 01:02:51,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-04-02 01:02:51,592 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 01:02:51,592 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 01:02:51,604 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-04-02 01:02:51,804 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 01:02:51,804 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 01:02:51,805 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 01:02:51,805 INFO L85 PathProgramCache]: Analyzing trace with hash 1252786219, now seen corresponding path program 1 times [2023-04-02 01:02:51,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 01:02:51,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124545007] [2023-04-02 01:02:51,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 01:02:51,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 01:02:51,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:02:54,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 01:02:54,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:02:54,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 01:02:54,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:02:54,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 01:02:54,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:02:54,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 01:02:54,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:02:54,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 01:02:54,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:02:54,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 01:02:54,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:02:54,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-04-02 01:02:54,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:02:55,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 01:02:55,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:02:55,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 01:02:55,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:02:56,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 01:02:56,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:02:56,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 01:02:56,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:02:56,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 01:02:56,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:02:56,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 01:02:56,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:02:56,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 01:02:56,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:02:56,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-04-02 01:02:56,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:02:57,187 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 9 proven. 17 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-04-02 01:02:57,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 01:02:57,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1124545007] [2023-04-02 01:02:57,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1124545007] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 01:02:57,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [130147793] [2023-04-02 01:02:57,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 01:02:57,188 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 01:02:57,188 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 01:02:57,193 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 01:02:57,197 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-04-02 01:02:57,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:02:57,414 INFO L262 TraceCheckSpWp]: Trace formula consists of 538 conjuncts, 215 conjunts are in the unsatisfiable core [2023-04-02 01:02:57,430 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 01:02:57,730 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2023-04-02 01:02:58,039 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2023-04-02 01:02:58,040 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2023-04-02 01:02:58,207 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2023-04-02 01:02:58,420 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2023-04-02 01:02:58,420 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2023-04-02 01:03:00,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-04-02 01:03:00,523 INFO L173 IndexEqualityManager]: detected equality via solver [2023-04-02 01:03:00,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-04-02 01:03:00,529 INFO L173 IndexEqualityManager]: detected equality via solver [2023-04-02 01:03:00,530 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 31 [2023-04-02 01:03:00,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-04-02 01:03:00,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-04-02 01:03:00,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-04-02 01:03:00,598 INFO L321 Elim1Store]: treesize reduction 158, result has 24.0 percent of original size [2023-04-02 01:03:00,599 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 151 treesize of output 129 [2023-04-02 01:03:00,607 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2023-04-02 01:03:00,622 INFO L321 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2023-04-02 01:03:00,623 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 250 treesize of output 150 [2023-04-02 01:03:00,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-04-02 01:03:00,635 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 102 treesize of output 110 [2023-04-02 01:03:00,661 INFO L321 Elim1Store]: treesize reduction 22, result has 47.6 percent of original size [2023-04-02 01:03:00,661 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 118 treesize of output 94 [2023-04-02 01:03:00,675 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 27 [2023-04-02 01:03:00,687 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2023-04-02 01:03:00,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-04-02 01:03:00,709 INFO L321 Elim1Store]: treesize reduction 8, result has 79.5 percent of original size [2023-04-02 01:03:00,709 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 37 treesize of output 43 [2023-04-02 01:03:00,724 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-04-02 01:03:00,724 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 29 [2023-04-02 01:03:01,951 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 11 proven. 20 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-04-02 01:03:01,952 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-02 01:03:03,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [130147793] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 01:03:03,620 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-04-02 01:03:03,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [35, 34] total 67 [2023-04-02 01:03:03,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635429720] [2023-04-02 01:03:03,620 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-04-02 01:03:03,621 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 67 states [2023-04-02 01:03:03,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 01:03:03,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 67 interpolants. [2023-04-02 01:03:03,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=5077, Unknown=19, NotChecked=0, Total=5402 [2023-04-02 01:03:03,624 INFO L87 Difference]: Start difference. First operand 161 states and 185 transitions. Second operand has 67 states, 54 states have (on average 1.6481481481481481) internal successors, (89), 48 states have internal predecessors, (89), 25 states have call successors, (35), 16 states have call predecessors, (35), 21 states have return successors, (29), 26 states have call predecessors, (29), 23 states have call successors, (29) [2023-04-02 01:03:13,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 01:03:13,715 INFO L93 Difference]: Finished difference Result 359 states and 412 transitions. [2023-04-02 01:03:13,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2023-04-02 01:03:13,715 INFO L78 Accepts]: Start accepts. Automaton has has 67 states, 54 states have (on average 1.6481481481481481) internal successors, (89), 48 states have internal predecessors, (89), 25 states have call successors, (35), 16 states have call predecessors, (35), 21 states have return successors, (29), 26 states have call predecessors, (29), 23 states have call successors, (29) Word has length 86 [2023-04-02 01:03:13,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 01:03:13,717 INFO L225 Difference]: With dead ends: 359 [2023-04-02 01:03:13,717 INFO L226 Difference]: Without dead ends: 230 [2023-04-02 01:03:13,721 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 89 SyntacticMatches, 3 SemanticMatches, 123 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3577 ImplicationChecksByTransitivity, 8.8s TimeCoverageRelationStatistics Valid=1334, Invalid=14146, Unknown=20, NotChecked=0, Total=15500 [2023-04-02 01:03:13,722 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 1082 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 7535 mSolverCounterSat, 379 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1082 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 7914 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 379 IncrementalHoareTripleChecker+Valid, 7535 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2023-04-02 01:03:13,722 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1082 Valid, 29 Invalid, 7914 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [379 Valid, 7535 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2023-04-02 01:03:13,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2023-04-02 01:03:13,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 184. [2023-04-02 01:03:13,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 117 states have (on average 1.1623931623931625) internal successors, (136), 122 states have internal predecessors, (136), 33 states have call successors, (33), 28 states have call predecessors, (33), 31 states have return successors, (42), 33 states have call predecessors, (42), 30 states have call successors, (42) [2023-04-02 01:03:13,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 211 transitions. [2023-04-02 01:03:13,751 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 211 transitions. Word has length 86 [2023-04-02 01:03:13,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 01:03:13,751 INFO L495 AbstractCegarLoop]: Abstraction has 184 states and 211 transitions. [2023-04-02 01:03:13,751 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 67 states, 54 states have (on average 1.6481481481481481) internal successors, (89), 48 states have internal predecessors, (89), 25 states have call successors, (35), 16 states have call predecessors, (35), 21 states have return successors, (29), 26 states have call predecessors, (29), 23 states have call successors, (29) [2023-04-02 01:03:13,752 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 211 transitions. [2023-04-02 01:03:13,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-04-02 01:03:13,753 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 01:03:13,753 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 01:03:13,760 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-04-02 01:03:13,960 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 01:03:13,960 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 01:03:13,960 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 01:03:13,960 INFO L85 PathProgramCache]: Analyzing trace with hash -1327866416, now seen corresponding path program 1 times [2023-04-02 01:03:13,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 01:03:13,961 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318535943] [2023-04-02 01:03:13,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 01:03:13,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 01:03:14,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:03:15,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 01:03:15,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:03:15,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 01:03:15,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:03:15,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 01:03:15,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:03:15,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 01:03:15,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:03:15,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 01:03:15,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:03:15,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 01:03:15,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:03:15,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-04-02 01:03:15,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:03:16,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 01:03:16,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:03:16,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 01:03:16,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:03:17,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 01:03:17,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:03:17,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 01:03:17,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:03:17,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 01:03:17,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:03:17,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 01:03:17,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:03:18,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 01:03:18,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:03:18,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-04-02 01:03:18,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:03:18,956 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 2 proven. 24 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-04-02 01:03:18,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 01:03:18,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318535943] [2023-04-02 01:03:18,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [318535943] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 01:03:18,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1142375189] [2023-04-02 01:03:18,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 01:03:18,957 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 01:03:18,957 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 01:03:18,958 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 01:03:18,961 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-04-02 01:03:19,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:03:19,191 INFO L262 TraceCheckSpWp]: Trace formula consists of 552 conjuncts, 227 conjunts are in the unsatisfiable core [2023-04-02 01:03:19,198 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 01:03:19,427 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2023-04-02 01:03:19,611 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2023-04-02 01:03:19,611 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2023-04-02 01:03:19,802 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2023-04-02 01:03:19,903 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2023-04-02 01:03:19,904 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2023-04-02 01:03:22,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-04-02 01:03:22,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-04-02 01:03:22,307 INFO L321 Elim1Store]: treesize reduction 84, result has 15.2 percent of original size [2023-04-02 01:03:22,308 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 259 treesize of output 193 [2023-04-02 01:03:22,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-04-02 01:03:22,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-04-02 01:03:22,327 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 44 [2023-04-02 01:03:22,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-04-02 01:03:22,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-04-02 01:03:22,335 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 43 [2023-04-02 01:03:22,341 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 45 [2023-04-02 01:03:22,347 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 39 [2023-04-02 01:03:22,351 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 20 [2023-04-02 01:03:22,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-04-02 01:03:22,366 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2023-04-02 01:03:22,369 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 23 [2023-04-02 01:03:22,378 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 18 [2023-04-02 01:03:23,251 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 13 proven. 26 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-04-02 01:03:23,251 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-02 01:03:25,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1142375189] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 01:03:25,435 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-04-02 01:03:25,435 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 31] total 62 [2023-04-02 01:03:25,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568823589] [2023-04-02 01:03:25,436 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-04-02 01:03:25,436 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 62 states [2023-04-02 01:03:25,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 01:03:25,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 62 interpolants. [2023-04-02 01:03:25,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=296, Invalid=4386, Unknown=10, NotChecked=0, Total=4692 [2023-04-02 01:03:25,439 INFO L87 Difference]: Start difference. First operand 184 states and 211 transitions. Second operand has 62 states, 55 states have (on average 1.7272727272727273) internal successors, (95), 50 states have internal predecessors, (95), 23 states have call successors, (35), 15 states have call predecessors, (35), 22 states have return successors, (29), 26 states have call predecessors, (29), 23 states have call successors, (29) [2023-04-02 01:03:46,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 01:03:46,036 INFO L93 Difference]: Finished difference Result 530 states and 623 transitions. [2023-04-02 01:03:46,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2023-04-02 01:03:46,036 INFO L78 Accepts]: Start accepts. Automaton has has 62 states, 55 states have (on average 1.7272727272727273) internal successors, (95), 50 states have internal predecessors, (95), 23 states have call successors, (35), 15 states have call predecessors, (35), 22 states have return successors, (29), 26 states have call predecessors, (29), 23 states have call successors, (29) Word has length 89 [2023-04-02 01:03:46,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 01:03:46,038 INFO L225 Difference]: With dead ends: 530 [2023-04-02 01:03:46,038 INFO L226 Difference]: Without dead ends: 384 [2023-04-02 01:03:46,041 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 128 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4082 ImplicationChecksByTransitivity, 11.4s TimeCoverageRelationStatistics Valid=1857, Invalid=14891, Unknown=22, NotChecked=0, Total=16770 [2023-04-02 01:03:46,042 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 1876 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 8436 mSolverCounterSat, 776 mSolverCounterUnsat, 52 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1876 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 9264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 776 IncrementalHoareTripleChecker+Valid, 8436 IncrementalHoareTripleChecker+Invalid, 52 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.9s IncrementalHoareTripleChecker+Time [2023-04-02 01:03:46,042 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1876 Valid, 14 Invalid, 9264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [776 Valid, 8436 Invalid, 52 Unknown, 0 Unchecked, 12.9s Time] [2023-04-02 01:03:46,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 384 states. [2023-04-02 01:03:46,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 384 to 232. [2023-04-02 01:03:46,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 232 states, 150 states have (on average 1.1733333333333333) internal successors, (176), 156 states have internal predecessors, (176), 41 states have call successors, (41), 34 states have call predecessors, (41), 39 states have return successors, (57), 41 states have call predecessors, (57), 38 states have call successors, (57) [2023-04-02 01:03:46,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 274 transitions. [2023-04-02 01:03:46,085 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 274 transitions. Word has length 89 [2023-04-02 01:03:46,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 01:03:46,086 INFO L495 AbstractCegarLoop]: Abstraction has 232 states and 274 transitions. [2023-04-02 01:03:46,086 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 62 states, 55 states have (on average 1.7272727272727273) internal successors, (95), 50 states have internal predecessors, (95), 23 states have call successors, (35), 15 states have call predecessors, (35), 22 states have return successors, (29), 26 states have call predecessors, (29), 23 states have call successors, (29) [2023-04-02 01:03:46,086 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 274 transitions. [2023-04-02 01:03:46,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-04-02 01:03:46,088 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 01:03:46,088 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 01:03:46,094 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-04-02 01:03:46,297 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 01:03:46,297 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 01:03:46,297 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 01:03:46,298 INFO L85 PathProgramCache]: Analyzing trace with hash -60883090, now seen corresponding path program 1 times [2023-04-02 01:03:46,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 01:03:46,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716637536] [2023-04-02 01:03:46,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 01:03:46,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 01:03:46,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:03:46,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 01:03:46,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:03:46,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 01:03:46,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:03:46,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 01:03:46,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:03:46,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 01:03:46,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:03:46,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 01:03:46,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:03:46,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 01:03:46,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:03:46,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-04-02 01:03:46,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:03:46,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 01:03:46,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:03:46,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 01:03:46,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:03:46,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 01:03:46,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:03:46,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 01:03:46,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:03:46,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 01:03:46,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:03:46,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 01:03:46,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:03:46,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 01:03:46,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:03:46,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-04-02 01:03:46,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:03:46,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 01:03:46,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:03:46,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 01:03:46,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:03:46,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 01:03:46,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:03:46,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-04-02 01:03:46,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:03:46,505 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2023-04-02 01:03:46,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 01:03:46,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1716637536] [2023-04-02 01:03:46,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1716637536] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 01:03:46,505 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 01:03:46,505 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-04-02 01:03:46,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892045695] [2023-04-02 01:03:46,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 01:03:46,506 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-04-02 01:03:46,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 01:03:46,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-04-02 01:03:46,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-04-02 01:03:46,507 INFO L87 Difference]: Start difference. First operand 232 states and 274 transitions. Second operand has 8 states, 8 states have (on average 5.0) internal successors, (40), 4 states have internal predecessors, (40), 1 states have call successors, (17), 5 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) [2023-04-02 01:03:46,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 01:03:46,913 INFO L93 Difference]: Finished difference Result 248 states and 293 transitions. [2023-04-02 01:03:46,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-04-02 01:03:46,913 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.0) internal successors, (40), 4 states have internal predecessors, (40), 1 states have call successors, (17), 5 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) Word has length 113 [2023-04-02 01:03:46,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 01:03:46,915 INFO L225 Difference]: With dead ends: 248 [2023-04-02 01:03:46,915 INFO L226 Difference]: Without dead ends: 246 [2023-04-02 01:03:46,915 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2023-04-02 01:03:46,916 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 132 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 432 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 504 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 432 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-04-02 01:03:46,916 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 7 Invalid, 504 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 432 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-04-02 01:03:46,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2023-04-02 01:03:46,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 242. [2023-04-02 01:03:46,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242 states, 158 states have (on average 1.1645569620253164) internal successors, (184), 163 states have internal predecessors, (184), 41 states have call successors, (41), 34 states have call predecessors, (41), 41 states have return successors, (59), 44 states have call predecessors, (59), 38 states have call successors, (59) [2023-04-02 01:03:46,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 284 transitions. [2023-04-02 01:03:46,959 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 284 transitions. Word has length 113 [2023-04-02 01:03:46,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 01:03:46,962 INFO L495 AbstractCegarLoop]: Abstraction has 242 states and 284 transitions. [2023-04-02 01:03:46,962 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.0) internal successors, (40), 4 states have internal predecessors, (40), 1 states have call successors, (17), 5 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) [2023-04-02 01:03:46,962 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 284 transitions. [2023-04-02 01:03:46,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-04-02 01:03:46,965 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 01:03:46,965 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 01:03:46,965 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-04-02 01:03:46,965 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 01:03:46,966 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 01:03:46,966 INFO L85 PathProgramCache]: Analyzing trace with hash 1009414936, now seen corresponding path program 2 times [2023-04-02 01:03:46,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 01:03:46,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576356513] [2023-04-02 01:03:46,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 01:03:46,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 01:03:47,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:03:48,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 01:03:48,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:03:48,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 01:03:48,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:03:48,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 01:03:48,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:03:48,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 01:03:48,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:03:48,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 01:03:48,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:03:49,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 01:03:49,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:03:49,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-04-02 01:03:49,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:03:49,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 01:03:49,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:03:49,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 01:03:49,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:03:50,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 01:03:50,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:03:50,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 01:03:50,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:03:50,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 01:03:50,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:03:50,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 01:03:50,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:03:50,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 01:03:50,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:03:51,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-04-02 01:03:51,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:03:51,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 01:03:51,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:03:51,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 01:03:51,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:03:51,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 01:03:51,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:03:51,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-04-02 01:03:51,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:03:51,977 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 19 proven. 50 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-04-02 01:03:51,978 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 01:03:51,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576356513] [2023-04-02 01:03:51,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1576356513] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 01:03:51,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [695456819] [2023-04-02 01:03:51,978 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-04-02 01:03:51,978 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 01:03:51,978 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 01:03:51,979 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 01:03:52,012 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-04-02 01:03:52,291 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-04-02 01:03:52,291 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-04-02 01:03:52,298 INFO L262 TraceCheckSpWp]: Trace formula consists of 690 conjuncts, 270 conjunts are in the unsatisfiable core [2023-04-02 01:03:52,308 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 01:03:53,394 INFO L321 Elim1Store]: treesize reduction 117, result has 35.4 percent of original size [2023-04-02 01:03:53,394 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 92 treesize of output 229 [2023-04-02 01:03:53,404 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2023-04-02 01:03:53,417 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2023-04-02 01:03:53,429 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2023-04-02 01:03:53,478 INFO L173 IndexEqualityManager]: detected equality via solver [2023-04-02 01:03:53,483 INFO L173 IndexEqualityManager]: detected equality via solver [2023-04-02 01:03:53,495 INFO L321 Elim1Store]: treesize reduction 25, result has 24.2 percent of original size [2023-04-02 01:03:53,496 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 5 case distinctions, treesize of input 93 treesize of output 94 [2023-04-02 01:03:53,519 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2023-04-02 01:03:53,546 INFO L173 IndexEqualityManager]: detected equality via solver [2023-04-02 01:03:53,549 INFO L173 IndexEqualityManager]: detected equality via solver [2023-04-02 01:03:53,550 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 88 treesize of output 79 [2023-04-02 01:03:53,556 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2023-04-02 01:03:53,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-04-02 01:03:53,741 INFO L321 Elim1Store]: treesize reduction 73, result has 27.7 percent of original size [2023-04-02 01:03:53,741 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 325 treesize of output 313 [2023-04-02 01:03:53,891 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2023-04-02 01:03:53,922 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2023-04-02 01:03:53,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-04-02 01:03:54,002 INFO L321 Elim1Store]: treesize reduction 50, result has 9.1 percent of original size [2023-04-02 01:03:54,003 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 198 treesize of output 130 [2023-04-02 01:03:54,086 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2023-04-02 01:03:54,100 INFO L173 IndexEqualityManager]: detected equality via solver [2023-04-02 01:03:54,100 INFO L173 IndexEqualityManager]: detected equality via solver [2023-04-02 01:03:54,101 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 5 [2023-04-02 01:03:54,104 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2023-04-02 01:03:55,373 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 52 [2023-04-02 01:04:22,371 WARN L223 SmtUtils]: Spent 18.98s on a formula simplification. DAG size of input: 163 DAG size of output: 59 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2023-04-02 01:04:22,371 INFO L321 Elim1Store]: treesize reduction 404, result has 20.6 percent of original size [2023-04-02 01:04:22,372 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 12 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 17 new quantified variables, introduced 30 case distinctions, treesize of input 1114 treesize of output 1048 [2023-04-02 01:04:22,445 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 255 treesize of output 258 [2023-04-02 01:04:22,466 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 252 treesize of output 255 [2023-04-02 01:04:24,147 INFO L321 Elim1Store]: treesize reduction 542, result has 8.0 percent of original size [2023-04-02 01:04:24,147 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 20 case distinctions, treesize of input 363 treesize of output 684 [2023-04-02 01:04:24,445 INFO L217 Elim1Store]: Index analysis took 258 ms [2023-04-02 01:04:26,530 INFO L321 Elim1Store]: treesize reduction 600, result has 6.7 percent of original size [2023-04-02 01:04:26,531 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 25 case distinctions, treesize of input 408 treesize of output 901 [2023-04-02 01:04:26,816 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2023-04-02 01:04:32,921 INFO L217 Elim1Store]: Index analysis took 683 ms [2023-04-02 01:04:33,725 INFO L321 Elim1Store]: treesize reduction 705, result has 3.4 percent of original size [2023-04-02 01:04:33,726 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 25 case distinctions, treesize of input 1015 treesize of output 1522 [2023-04-02 01:04:39,984 INFO L173 IndexEqualityManager]: detected equality via solver [2023-04-02 01:04:39,997 INFO L173 IndexEqualityManager]: detected equality via solver [2023-04-02 01:04:40,115 INFO L217 Elim1Store]: Index analysis took 182 ms [2023-04-02 01:04:40,268 INFO L321 Elim1Store]: treesize reduction 316, result has 2.5 percent of original size [2023-04-02 01:04:40,269 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 15 case distinctions, treesize of input 407 treesize of output 749 [2023-04-02 01:04:40,791 INFO L173 IndexEqualityManager]: detected equality via solver [2023-04-02 01:04:41,046 INFO L217 Elim1Store]: Index analysis took 389 ms [2023-04-02 01:04:41,363 INFO L321 Elim1Store]: treesize reduction 415, result has 3.9 percent of original size [2023-04-02 01:04:41,363 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 22 case distinctions, treesize of input 844 treesize of output 1108 [2023-04-02 01:04:44,952 INFO L173 IndexEqualityManager]: detected equality via solver [2023-04-02 01:04:45,051 INFO L217 Elim1Store]: Index analysis took 369 ms [2023-04-02 01:04:45,411 INFO L321 Elim1Store]: treesize reduction 454, result has 3.6 percent of original size [2023-04-02 01:04:45,412 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 22 case distinctions, treesize of input 914 treesize of output 1378 [2023-04-02 01:04:53,726 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 30 [2023-04-02 01:04:53,767 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 30 [2023-04-02 01:04:53,827 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 30 [2023-04-02 01:04:53,869 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 30 [2023-04-02 01:04:54,010 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 30 [2023-04-02 01:04:54,437 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 30 [2023-04-02 01:04:54,510 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 30 [2023-04-02 01:05:25,463 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 32 [2023-04-02 01:06:08,641 INFO L321 Elim1Store]: treesize reduction 65, result has 7.1 percent of original size [2023-04-02 01:06:08,641 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 349 treesize of output 245 [2023-04-02 01:06:30,688 WARN L223 SmtUtils]: Spent 22.02s on a formula simplification. DAG size of input: 226 DAG size of output: 126 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2023-04-02 01:06:30,689 INFO L321 Elim1Store]: treesize reduction 704, result has 36.6 percent of original size [2023-04-02 01:06:30,690 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 16 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 18 new quantified variables, introduced 46 case distinctions, treesize of input 2352 treesize of output 8531 [2023-04-02 01:06:31,400 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11646 treesize of output 10626 [2023-04-02 01:06:34,674 INFO L173 IndexEqualityManager]: detected equality via solver [2023-04-02 01:06:34,982 INFO L173 IndexEqualityManager]: detected equality via solver [2023-04-02 01:06:36,074 INFO L173 IndexEqualityManager]: detected equality via solver [2023-04-02 01:06:36,764 INFO L173 IndexEqualityManager]: detected equality via solver