/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/taipan/svcomp-Reach-32bit-Taipan_Default.epf -tc ../../../trunk/examples/toolchains/AutomizerC.xml --sifa.abstract.domain EqDomain -i ../sv-benchmarks/c/ldv-sets/test_mutex_double_unlock.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-01 10:56:22,542 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-01 10:56:22,556 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-01 10:56:22,601 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-01 10:56:22,601 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-01 10:56:22,603 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-01 10:56:22,605 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-01 10:56:22,607 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-01 10:56:22,608 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-01 10:56:22,612 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-01 10:56:22,613 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-01 10:56:22,614 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-01 10:56:22,614 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-01 10:56:22,616 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-01 10:56:22,617 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-01 10:56:22,618 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-01 10:56:22,618 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-01 10:56:22,618 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-01 10:56:22,633 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-01 10:56:22,637 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-01 10:56:22,638 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-01 10:56:22,638 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-01 10:56:22,639 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-01 10:56:22,640 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-01 10:56:22,646 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2023-04-01 10:56:22,651 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-01 10:56:22,651 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-01 10:56:22,652 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-01 10:56:22,653 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf [2023-04-01 10:56:22,689 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-01 10:56:22,689 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-01 10:56:22,689 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-01 10:56:22,689 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-01 10:56:22,690 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-01 10:56:22,690 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-01 10:56:22,690 INFO L138 SettingsManager]: * User list type=DISABLED [2023-04-01 10:56:22,690 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-04-01 10:56:22,690 INFO L138 SettingsManager]: * Explicit value domain=true [2023-04-01 10:56:22,690 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-04-01 10:56:22,691 INFO L138 SettingsManager]: * Octagon Domain=false [2023-04-01 10:56:22,691 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-04-01 10:56:22,691 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-04-01 10:56:22,691 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-04-01 10:56:22,691 INFO L138 SettingsManager]: * Interval Domain=false [2023-04-01 10:56:22,691 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-04-01 10:56:22,692 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-04-01 10:56:22,692 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-04-01 10:56:22,692 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-01 10:56:22,692 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-01 10:56:22,692 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-01 10:56:22,692 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-01 10:56:22,693 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-01 10:56:22,693 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-01 10:56:22,693 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-01 10:56:22,708 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-01 10:56:22,709 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-01 10:56:22,709 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-01 10:56:22,709 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-01 10:56:22,709 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-01 10:56:22,709 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-01 10:56:22,709 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-01 10:56:22,710 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 10:56:22,710 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-01 10:56:22,710 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-04-01 10:56:22,710 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-01 10:56:22,710 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-01 10:56:22,710 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-04-01 10:56:22,710 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-01 10:56:22,710 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-01 10:56:22,710 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-04-01 10:56:22,710 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> EqDomain [2023-04-01 10:56:23,017 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-01 10:56:23,034 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-01 10:56:23,035 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-01 10:56:23,036 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-01 10:56:23,037 INFO L275 PluginConnector]: CDTParser initialized [2023-04-01 10:56:23,038 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-sets/test_mutex_double_unlock.i [2023-04-01 10:56:24,097 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-01 10:56:24,324 INFO L351 CDTParser]: Found 1 translation units. [2023-04-01 10:56:24,324 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-sets/test_mutex_double_unlock.i [2023-04-01 10:56:24,336 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/28ce9625d/f1f0ac8e6de94bafb70b315a74f08857/FLAG2f81594db [2023-04-01 10:56:24,348 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/28ce9625d/f1f0ac8e6de94bafb70b315a74f08857 [2023-04-01 10:56:24,350 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-01 10:56:24,351 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-01 10:56:24,353 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-01 10:56:24,353 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-01 10:56:24,356 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-01 10:56:24,356 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 10:56:24" (1/1) ... [2023-04-01 10:56:24,357 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1adadf53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 10:56:24, skipping insertion in model container [2023-04-01 10:56:24,357 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 10:56:24" (1/1) ... [2023-04-01 10:56:24,362 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-01 10:56:24,394 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-01 10:56:24,652 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] [2023-04-01 10:56:24,655 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] [2023-04-01 10:56:24,656 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] [2023-04-01 10:56:24,657 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 10:56:24,669 INFO L203 MainTranslator]: Completed pre-run [2023-04-01 10:56:24,711 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] [2023-04-01 10:56:24,712 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] [2023-04-01 10:56:24,713 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] [2023-04-01 10:56:24,714 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 10:56:24,733 INFO L208 MainTranslator]: Completed translation [2023-04-01 10:56:24,734 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 10:56:24 WrapperNode [2023-04-01 10:56:24,734 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-01 10:56:24,735 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-01 10:56:24,735 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-01 10:56:24,735 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-01 10:56:24,742 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 10:56:24" (1/1) ... [2023-04-01 10:56:24,743 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 10:56:24" (1/1) ... [2023-04-01 10:56:24,755 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 10:56:24" (1/1) ... [2023-04-01 10:56:24,755 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 10:56:24" (1/1) ... [2023-04-01 10:56:24,771 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 10:56:24" (1/1) ... [2023-04-01 10:56:24,774 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 10:56:24" (1/1) ... [2023-04-01 10:56:24,776 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 10:56:24" (1/1) ... [2023-04-01 10:56:24,782 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 10:56:24" (1/1) ... [2023-04-01 10:56:24,786 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-01 10:56:24,787 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-01 10:56:24,787 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-01 10:56:24,787 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-01 10:56:24,790 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 10:56:24" (1/1) ... [2023-04-01 10:56:24,794 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 10:56:24,801 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 10:56:24,832 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) [2023-04-01 10:56:24,837 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 [2023-04-01 10:56:24,869 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-01 10:56:24,869 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-01 10:56:24,869 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2023-04-01 10:56:24,870 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2023-04-01 10:56:24,870 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-01 10:56:24,870 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-04-01 10:56:24,870 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-04-01 10:56:24,870 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_successful_malloc [2023-04-01 10:56:24,870 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2023-04-01 10:56:24,870 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2023-04-01 10:56:24,870 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2023-04-01 10:56:24,870 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2023-04-01 10:56:24,871 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2023-04-01 10:56:24,871 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2023-04-01 10:56:24,871 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_empty [2023-04-01 10:56:24,871 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_set [2023-04-01 10:56:24,871 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_add [2023-04-01 10:56:24,871 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_del [2023-04-01 10:56:24,871 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_in_set [2023-04-01 10:56:24,871 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_empty [2023-04-01 10:56:24,871 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2023-04-01 10:56:24,871 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2023-04-01 10:56:24,872 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-04-01 10:56:24,872 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-04-01 10:56:24,872 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2023-04-01 10:56:24,872 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-01 10:56:24,872 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2023-04-01 10:56:24,872 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2023-04-01 10:56:24,872 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2023-04-01 10:56:24,873 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2023-04-01 10:56:24,873 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2023-04-01 10:56:24,873 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2023-04-01 10:56:24,874 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2023-04-01 10:56:24,874 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2023-04-01 10:56:24,874 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2023-04-01 10:56:24,874 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2023-04-01 10:56:24,874 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2023-04-01 10:56:24,874 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2023-04-01 10:56:24,874 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2023-04-01 10:56:24,874 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2023-04-01 10:56:24,875 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2023-04-01 10:56:24,875 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2023-04-01 10:56:24,875 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2023-04-01 10:56:24,875 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2023-04-01 10:56:24,875 INFO L130 BoogieDeclarations]: Found specification of procedure select [2023-04-01 10:56:24,876 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2023-04-01 10:56:24,876 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2023-04-01 10:56:24,876 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2023-04-01 10:56:24,876 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2023-04-01 10:56:24,876 INFO L130 BoogieDeclarations]: Found specification of procedure random [2023-04-01 10:56:24,876 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2023-04-01 10:56:24,876 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2023-04-01 10:56:24,877 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2023-04-01 10:56:24,877 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2023-04-01 10:56:24,877 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2023-04-01 10:56:24,877 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2023-04-01 10:56:24,878 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2023-04-01 10:56:24,878 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2023-04-01 10:56:24,878 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2023-04-01 10:56:24,878 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2023-04-01 10:56:24,878 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2023-04-01 10:56:24,878 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2023-04-01 10:56:24,878 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2023-04-01 10:56:24,878 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2023-04-01 10:56:24,878 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2023-04-01 10:56:24,878 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2023-04-01 10:56:24,878 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2023-04-01 10:56:24,878 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2023-04-01 10:56:24,878 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2023-04-01 10:56:24,878 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2023-04-01 10:56:24,878 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2023-04-01 10:56:24,879 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2023-04-01 10:56:24,879 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2023-04-01 10:56:24,879 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2023-04-01 10:56:24,879 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2023-04-01 10:56:24,879 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2023-04-01 10:56:24,879 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2023-04-01 10:56:24,879 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2023-04-01 10:56:24,879 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-04-01 10:56:24,879 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2023-04-01 10:56:24,879 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2023-04-01 10:56:24,879 INFO L130 BoogieDeclarations]: Found specification of procedure free [2023-04-01 10:56:24,879 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2023-04-01 10:56:24,880 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2023-04-01 10:56:24,880 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2023-04-01 10:56:24,880 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2023-04-01 10:56:24,880 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-01 10:56:24,880 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2023-04-01 10:56:24,880 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2023-04-01 10:56:24,880 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2023-04-01 10:56:24,880 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2023-04-01 10:56:24,880 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2023-04-01 10:56:24,880 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2023-04-01 10:56:24,880 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2023-04-01 10:56:24,880 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2023-04-01 10:56:24,880 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2023-04-01 10:56:24,880 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2023-04-01 10:56:24,880 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2023-04-01 10:56:24,881 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2023-04-01 10:56:24,881 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2023-04-01 10:56:24,881 INFO L130 BoogieDeclarations]: Found specification of procedure system [2023-04-01 10:56:24,881 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2023-04-01 10:56:24,881 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2023-04-01 10:56:24,881 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2023-04-01 10:56:24,881 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2023-04-01 10:56:24,881 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2023-04-01 10:56:24,881 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2023-04-01 10:56:24,881 INFO L130 BoogieDeclarations]: Found specification of procedure div [2023-04-01 10:56:24,881 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2023-04-01 10:56:24,882 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2023-04-01 10:56:24,882 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2023-04-01 10:56:24,882 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2023-04-01 10:56:24,882 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2023-04-01 10:56:24,883 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2023-04-01 10:56:24,883 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2023-04-01 10:56:24,883 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2023-04-01 10:56:24,883 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2023-04-01 10:56:24,884 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2023-04-01 10:56:24,885 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2023-04-01 10:56:24,885 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2023-04-01 10:56:24,888 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2023-04-01 10:56:24,888 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2023-04-01 10:56:24,888 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2023-04-01 10:56:24,888 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2023-04-01 10:56:24,888 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2023-04-01 10:56:24,888 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2023-04-01 10:56:24,888 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2023-04-01 10:56:24,888 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2023-04-01 10:56:24,888 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-01 10:56:24,889 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2023-04-01 10:56:24,889 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2023-04-01 10:56:24,889 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-01 10:56:24,889 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-01 10:56:24,889 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-04-01 10:56:24,889 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-01 10:56:24,889 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-04-01 10:56:24,889 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-04-01 10:56:24,889 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_successful_malloc [2023-04-01 10:56:24,889 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2023-04-01 10:56:24,889 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-04-01 10:56:24,889 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2023-04-01 10:56:24,889 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2023-04-01 10:56:24,889 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2023-04-01 10:56:24,889 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-04-01 10:56:24,889 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2023-04-01 10:56:24,889 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2023-04-01 10:56:24,890 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_empty [2023-04-01 10:56:24,890 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_set [2023-04-01 10:56:24,890 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_add [2023-04-01 10:56:24,890 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_del [2023-04-01 10:56:24,890 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_in_set [2023-04-01 10:56:24,890 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_empty [2023-04-01 10:56:24,890 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-01 10:56:24,890 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2023-04-01 10:56:24,890 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2023-04-01 10:56:24,890 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-04-01 10:56:24,890 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-04-01 10:56:24,890 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2023-04-01 10:56:24,890 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-01 10:56:24,890 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-01 10:56:24,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-01 10:56:24,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-04-01 10:56:24,891 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-01 10:56:24,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-01 10:56:24,891 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-01 10:56:25,143 INFO L236 CfgBuilder]: Building ICFG [2023-04-01 10:56:25,145 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-01 10:56:25,355 INFO L277 CfgBuilder]: Performing block encoding [2023-04-01 10:56:25,423 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-01 10:56:25,423 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-04-01 10:56:25,425 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 10:56:25 BoogieIcfgContainer [2023-04-01 10:56:25,425 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-01 10:56:25,428 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-01 10:56:25,428 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-01 10:56:25,430 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-01 10:56:25,430 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.04 10:56:24" (1/3) ... [2023-04-01 10:56:25,430 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f540bf7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 10:56:25, skipping insertion in model container [2023-04-01 10:56:25,430 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 10:56:24" (2/3) ... [2023-04-01 10:56:25,431 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f540bf7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 10:56:25, skipping insertion in model container [2023-04-01 10:56:25,431 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 10:56:25" (3/3) ... [2023-04-01 10:56:25,431 INFO L112 eAbstractionObserver]: Analyzing ICFG test_mutex_double_unlock.i [2023-04-01 10:56:25,442 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-01 10:56:25,443 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2023-04-01 10:56:25,499 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-01 10:56:25,504 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=FINITE_AUTOMATA, 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;@2f057db9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-04-01 10:56:25,505 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-04-01 10:56:25,507 INFO L276 IsEmpty]: Start isEmpty. Operand has 95 states, 48 states have (on average 1.2291666666666667) internal successors, (59), 52 states have internal predecessors, (59), 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) [2023-04-01 10:56:25,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-04-01 10:56:25,513 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 10:56:25,514 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-04-01 10:56:25,514 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 10:56:25,518 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 10:56:25,518 INFO L85 PathProgramCache]: Analyzing trace with hash 1953809322, now seen corresponding path program 1 times [2023-04-01 10:56:25,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 10:56:25,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431461090] [2023-04-01 10:56:25,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 10:56:25,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 10:56:25,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 10:56:25,843 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-04-01 10:56:25,843 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 10:56:25,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431461090] [2023-04-01 10:56:25,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [431461090] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 10:56:25,844 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 10:56:25,844 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-04-01 10:56:25,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47517785] [2023-04-01 10:56:25,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 10:56:25,850 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-01 10:56:25,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 10:56:25,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-01 10:56:25,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-04-01 10:56:25,877 INFO L87 Difference]: Start difference. First operand has 95 states, 48 states have (on average 1.2291666666666667) internal successors, (59), 52 states have internal predecessors, (59), 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 3.5) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2023-04-01 10:56:25,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 10:56:25,973 INFO L93 Difference]: Finished difference Result 177 states and 208 transitions. [2023-04-01 10:56:25,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-04-01 10:56:25,975 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (9), 1 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 34 [2023-04-01 10:56:25,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 10:56:25,983 INFO L225 Difference]: With dead ends: 177 [2023-04-01 10:56:25,983 INFO L226 Difference]: Without dead ends: 89 [2023-04-01 10:56:25,985 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-04-01 10:56:25,988 INFO L413 NwaCegarLoop]: 88 mSDtfsCounter, 0 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 259 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-01 10:56:25,989 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 259 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-01 10:56:25,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2023-04-01 10:56:26,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89. [2023-04-01 10:56:26,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 46 states have (on average 1.1521739130434783) internal successors, (53), 49 states have internal predecessors, (53), 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) [2023-04-01 10:56:26,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 101 transitions. [2023-04-01 10:56:26,019 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 101 transitions. Word has length 34 [2023-04-01 10:56:26,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 10:56:26,019 INFO L495 AbstractCegarLoop]: Abstraction has 89 states and 101 transitions. [2023-04-01 10:56:26,019 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2023-04-01 10:56:26,020 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 101 transitions. [2023-04-01 10:56:26,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-04-01 10:56:26,020 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 10:56:26,021 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-04-01 10:56:26,021 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-01 10:56:26,021 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 10:56:26,021 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 10:56:26,021 INFO L85 PathProgramCache]: Analyzing trace with hash 1192340230, now seen corresponding path program 1 times [2023-04-01 10:56:26,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 10:56:26,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588367394] [2023-04-01 10:56:26,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 10:56:26,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 10:56:26,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 10:56:26,395 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-04-01 10:56:26,396 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 10:56:26,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588367394] [2023-04-01 10:56:26,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [588367394] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 10:56:26,399 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 10:56:26,400 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-01 10:56:26,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206045463] [2023-04-01 10:56:26,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 10:56:26,402 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-01 10:56:26,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 10:56:26,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-01 10:56:26,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-01 10:56:26,405 INFO L87 Difference]: Start difference. First operand 89 states and 101 transitions. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2023-04-01 10:56:26,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 10:56:26,715 INFO L93 Difference]: Finished difference Result 238 states and 292 transitions. [2023-04-01 10:56:26,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-04-01 10:56:26,725 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 2 states have call successors, (9), 2 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 35 [2023-04-01 10:56:26,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 10:56:26,726 INFO L225 Difference]: With dead ends: 238 [2023-04-01 10:56:26,727 INFO L226 Difference]: Without dead ends: 162 [2023-04-01 10:56:26,727 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-04-01 10:56:26,728 INFO L413 NwaCegarLoop]: 107 mSDtfsCounter, 86 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 207 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 293 SdHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-04-01 10:56:26,728 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 293 Invalid, 209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 207 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-04-01 10:56:26,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2023-04-01 10:56:26,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 132. [2023-04-01 10:56:26,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 71 states have (on average 1.1971830985915493) internal successors, (85), 76 states have internal predecessors, (85), 34 states have call successors, (34), 25 states have call predecessors, (34), 24 states have return successors, (41), 31 states have call predecessors, (41), 31 states have call successors, (41) [2023-04-01 10:56:26,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 160 transitions. [2023-04-01 10:56:26,744 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 160 transitions. Word has length 35 [2023-04-01 10:56:26,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 10:56:26,744 INFO L495 AbstractCegarLoop]: Abstraction has 132 states and 160 transitions. [2023-04-01 10:56:26,744 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2023-04-01 10:56:26,744 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 160 transitions. [2023-04-01 10:56:26,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-04-01 10:56:26,746 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 10:56:26,746 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 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] [2023-04-01 10:56:26,746 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-01 10:56:26,746 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 10:56:26,746 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 10:56:26,746 INFO L85 PathProgramCache]: Analyzing trace with hash -893445544, now seen corresponding path program 1 times [2023-04-01 10:56:26,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 10:56:26,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608446972] [2023-04-01 10:56:26,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 10:56:26,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 10:56:26,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 10:56:26,810 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 2 proven. 12 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-04-01 10:56:26,811 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 10:56:26,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [608446972] [2023-04-01 10:56:26,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [608446972] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-01 10:56:26,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2020675710] [2023-04-01 10:56:26,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 10:56:26,811 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 10:56:26,811 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 10:56:26,814 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) [2023-04-01 10:56:26,815 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-04-01 10:56:26,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 10:56:26,976 INFO L262 TraceCheckSpWp]: Trace formula consists of 468 conjuncts, 5 conjunts are in the unsatisfiable core [2023-04-01 10:56:26,980 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-01 10:56:27,006 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-04-01 10:56:27,007 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-01 10:56:27,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2020675710] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 10:56:27,007 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-01 10:56:27,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 4 [2023-04-01 10:56:27,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998341378] [2023-04-01 10:56:27,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 10:56:27,008 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-01 10:56:27,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 10:56:27,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-01 10:56:27,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-04-01 10:56:27,008 INFO L87 Difference]: Start difference. First operand 132 states and 160 transitions. Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 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) [2023-04-01 10:56:27,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 10:56:27,083 INFO L93 Difference]: Finished difference Result 236 states and 288 transitions. [2023-04-01 10:56:27,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-04-01 10:56:27,084 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 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 78 [2023-04-01 10:56:27,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 10:56:27,086 INFO L225 Difference]: With dead ends: 236 [2023-04-01 10:56:27,086 INFO L226 Difference]: Without dead ends: 138 [2023-04-01 10:56:27,087 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-04-01 10:56:27,087 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 0 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-01 10:56:27,087 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 238 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-01 10:56:27,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2023-04-01 10:56:27,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 138. [2023-04-01 10:56:27,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 76 states have (on average 1.1842105263157894) internal successors, (90), 80 states have internal predecessors, (90), 34 states have call successors, (34), 25 states have call predecessors, (34), 25 states have return successors, (42), 33 states have call predecessors, (42), 31 states have call successors, (42) [2023-04-01 10:56:27,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 166 transitions. [2023-04-01 10:56:27,099 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 166 transitions. Word has length 78 [2023-04-01 10:56:27,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 10:56:27,099 INFO L495 AbstractCegarLoop]: Abstraction has 138 states and 166 transitions. [2023-04-01 10:56:27,099 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 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) [2023-04-01 10:56:27,099 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 166 transitions. [2023-04-01 10:56:27,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-04-01 10:56:27,101 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 10:56:27,101 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 3, 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] [2023-04-01 10:56:27,109 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-04-01 10:56:27,306 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 10:56:27,307 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 10:56:27,307 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 10:56:27,307 INFO L85 PathProgramCache]: Analyzing trace with hash 1202886494, now seen corresponding path program 1 times [2023-04-01 10:56:27,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 10:56:27,307 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089930287] [2023-04-01 10:56:27,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 10:56:27,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 10:56:27,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 10:56:27,706 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-04-01 10:56:27,707 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 10:56:27,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1089930287] [2023-04-01 10:56:27,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1089930287] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-01 10:56:27,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [991570534] [2023-04-01 10:56:27,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 10:56:27,707 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 10:56:27,707 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 10:56:27,725 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) [2023-04-01 10:56:27,746 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-04-01 10:56:27,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 10:56:27,884 INFO L262 TraceCheckSpWp]: Trace formula consists of 478 conjuncts, 57 conjunts are in the unsatisfiable core [2023-04-01 10:56:27,888 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-01 10:56:28,473 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-04-01 10:56:28,473 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-01 10:56:28,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [991570534] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 10:56:28,474 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-01 10:56:28,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [9] total 17 [2023-04-01 10:56:28,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892842648] [2023-04-01 10:56:28,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 10:56:28,474 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-01 10:56:28,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 10:56:28,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-01 10:56:28,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=221, Unknown=0, NotChecked=0, Total=272 [2023-04-01 10:56:28,475 INFO L87 Difference]: Start difference. First operand 138 states and 166 transitions. Second operand has 10 states, 9 states have (on average 4.0) internal successors, (36), 9 states have internal predecessors, (36), 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) [2023-04-01 10:56:29,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 10:56:29,219 INFO L93 Difference]: Finished difference Result 307 states and 371 transitions. [2023-04-01 10:56:29,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-04-01 10:56:29,220 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 4.0) internal successors, (36), 9 states have internal predecessors, (36), 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 80 [2023-04-01 10:56:29,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 10:56:29,222 INFO L225 Difference]: With dead ends: 307 [2023-04-01 10:56:29,222 INFO L226 Difference]: Without dead ends: 194 [2023-04-01 10:56:29,223 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 161 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=198, Invalid=732, Unknown=0, NotChecked=0, Total=930 [2023-04-01 10:56:29,223 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 219 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 640 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 232 SdHoareTripleChecker+Valid, 259 SdHoareTripleChecker+Invalid, 733 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 640 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-04-01 10:56:29,223 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [232 Valid, 259 Invalid, 733 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 640 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-04-01 10:56:29,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2023-04-01 10:56:29,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 139. [2023-04-01 10:56:29,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 79 states have (on average 1.1772151898734178) internal successors, (93), 84 states have internal predecessors, (93), 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) [2023-04-01 10:56:29,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 163 transitions. [2023-04-01 10:56:29,242 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 163 transitions. Word has length 80 [2023-04-01 10:56:29,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 10:56:29,242 INFO L495 AbstractCegarLoop]: Abstraction has 139 states and 163 transitions. [2023-04-01 10:56:29,242 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 4.0) internal successors, (36), 9 states have internal predecessors, (36), 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) [2023-04-01 10:56:29,242 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 163 transitions. [2023-04-01 10:56:29,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-04-01 10:56:29,244 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 10:56:29,244 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 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] [2023-04-01 10:56:29,265 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-04-01 10:56:29,450 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2023-04-01 10:56:29,450 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 10:56:29,451 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 10:56:29,451 INFO L85 PathProgramCache]: Analyzing trace with hash 470184712, now seen corresponding path program 1 times [2023-04-01 10:56:29,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 10:56:29,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517018719] [2023-04-01 10:56:29,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 10:56:29,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 10:56:29,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 10:56:32,002 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 11 proven. 12 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-04-01 10:56:32,002 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 10:56:32,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1517018719] [2023-04-01 10:56:32,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1517018719] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-01 10:56:32,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1339880565] [2023-04-01 10:56:32,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 10:56:32,003 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 10:56:32,003 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 10:56:32,017 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) [2023-04-01 10:56:32,021 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-04-01 10:56:32,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 10:56:32,185 INFO L262 TraceCheckSpWp]: Trace formula consists of 529 conjuncts, 179 conjunts are in the unsatisfiable core [2023-04-01 10:56:32,195 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-01 10:56:32,261 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 6 treesize of output 5 [2023-04-01 10:56:32,625 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 [2023-04-01 10:56:32,779 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2023-04-01 10:56:32,780 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 [2023-04-01 10:56:33,295 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 11 treesize of output 7 [2023-04-01 10:56:33,541 INFO L321 Elim1Store]: treesize reduction 117, result has 35.4 percent of original size [2023-04-01 10:56:33,541 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 [2023-04-01 10:56:33,566 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 [2023-04-01 10:56:33,579 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 [2023-04-01 10:56:33,598 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 [2023-04-01 10:56:34,058 INFO L173 IndexEqualityManager]: detected equality via solver [2023-04-01 10:56:34,082 INFO L321 Elim1Store]: treesize reduction 24, result has 25.0 percent of original size [2023-04-01 10:56:34,083 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 153 treesize of output 104 [2023-04-01 10:56:34,095 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 [2023-04-01 10:56:34,120 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 [2023-04-01 10:56:34,181 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 [2023-04-01 10:56:34,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-04-01 10:56:34,192 INFO L173 IndexEqualityManager]: detected equality via solver [2023-04-01 10:56:34,199 INFO L173 IndexEqualityManager]: detected equality via solver [2023-04-01 10:56:34,202 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 89 treesize of output 44 [2023-04-01 10:56:34,209 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 [2023-04-01 10:56:34,213 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 [2023-04-01 10:56:35,316 INFO L321 Elim1Store]: treesize reduction 182, result has 36.6 percent of original size [2023-04-01 10:56:35,316 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 562 treesize of output 496 [2023-04-01 10:56:35,419 INFO L321 Elim1Store]: treesize reduction 124, result has 37.1 percent of original size [2023-04-01 10:56:35,419 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 6 new quantified variables, introduced 11 case distinctions, treesize of input 1209 treesize of output 1075 [2023-04-01 10:56:35,449 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 12 treesize of output 11 [2023-04-01 10:56:35,575 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 [2023-04-01 10:56:35,634 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-04-01 10:56:35,634 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 72 treesize of output 76 [2023-04-01 10:56:35,756 INFO L321 Elim1Store]: treesize reduction 60, result has 14.3 percent of original size [2023-04-01 10:56:35,757 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 3 new quantified variables, introduced 4 case distinctions, treesize of input 199 treesize of output 140 [2023-04-01 10:56:35,811 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 9 treesize of output 7 [2023-04-01 10:56:35,993 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 20 treesize of output 17 [2023-04-01 10:56:36,050 INFO L321 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2023-04-01 10:56:36,050 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 3 new quantified variables, introduced 2 case distinctions, treesize of input 282 treesize of output 247 [2023-04-01 10:56:36,287 INFO L321 Elim1Store]: treesize reduction 17, result has 32.0 percent of original size [2023-04-01 10:56:36,287 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 895 treesize of output 787 [2023-04-01 10:56:36,658 INFO L321 Elim1Store]: treesize reduction 26, result has 57.4 percent of original size [2023-04-01 10:56:36,658 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 7 case distinctions, treesize of input 379 treesize of output 357 [2023-04-01 10:56:37,297 INFO L321 Elim1Store]: treesize reduction 108, result has 28.9 percent of original size [2023-04-01 10:56:37,298 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 10 case distinctions, treesize of input 5541 treesize of output 2949 [2023-04-01 10:56:43,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-04-01 10:56:43,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-04-01 10:56:43,447 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 135 treesize of output 103 [2023-04-01 10:56:43,479 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-04-01 10:56:43,479 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 304 treesize of output 262 [2023-04-01 10:56:44,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-04-01 10:56:44,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-04-01 10:56:44,090 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 140 treesize of output 106 [2023-04-01 10:56:44,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-04-01 10:56:44,279 INFO L321 Elim1Store]: treesize reduction 171, result has 41.2 percent of original size [2023-04-01 10:56:44,280 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 7 new quantified variables, introduced 17 case distinctions, treesize of input 783 treesize of output 772 [2023-04-01 10:56:57,232 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 11 [2023-04-01 10:56:57,282 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 [2023-04-01 10:56:57,286 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 7 treesize of output 3 [2023-04-01 10:56:57,344 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-04-01 10:56:57,344 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 179 treesize of output 189 [2023-04-01 10:56:57,598 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 11 [2023-04-01 10:56:57,652 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-04-01 10:56:57,652 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 248 treesize of output 258 [2023-04-01 10:56:57,952 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-04-01 10:56:57,966 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-04-01 10:56:58,048 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 11 [2023-04-01 10:56:58,098 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 [2023-04-01 10:56:58,102 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 7 treesize of output 3 [2023-04-01 10:56:58,195 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-04-01 10:56:58,196 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 270 treesize of output 300 [2023-04-01 10:57:01,249 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 11 [2023-04-01 10:57:01,262 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 [2023-04-01 10:57:01,396 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2023-04-01 10:57:01,531 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 11 [2023-04-01 10:57:01,700 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-04-01 10:57:01,700 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 401 treesize of output 459