/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation false -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/ldv-sets/test_mutex.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-21 03:29:53,750 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-21 03:29:53,836 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-21 03:29:53,841 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-21 03:29:53,842 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-21 03:29:53,869 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-21 03:29:53,870 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-21 03:29:53,870 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-21 03:29:53,870 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-21 03:29:53,874 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-21 03:29:53,874 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-21 03:29:53,874 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-21 03:29:53,875 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-21 03:29:53,876 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-21 03:29:53,876 INFO L153 SettingsManager]: * Use SBE=true [2023-12-21 03:29:53,876 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-21 03:29:53,876 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-21 03:29:53,877 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-21 03:29:53,877 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-21 03:29:53,877 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-21 03:29:53,877 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-21 03:29:53,878 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-21 03:29:53,878 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-21 03:29:53,878 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-21 03:29:53,878 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-21 03:29:53,878 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-21 03:29:53,879 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-21 03:29:53,879 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-21 03:29:53,879 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-21 03:29:53,879 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-21 03:29:53,879 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-21 03:29:53,880 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-21 03:29:53,880 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-21 03:29:53,880 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-21 03:29:53,880 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-21 03:29:53,880 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-21 03:29:53,880 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-21 03:29:53,881 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-21 03:29:53,881 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-21 03:29:53,881 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-21 03:29:53,881 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-21 03:29:53,881 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-21 03:29:53,881 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-21 03:29:53,882 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-21 03:29:54,084 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-21 03:29:54,105 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-21 03:29:54,108 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-21 03:29:54,109 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-21 03:29:54,109 INFO L274 PluginConnector]: CDTParser initialized [2023-12-21 03:29:54,111 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-sets/test_mutex.i [2023-12-21 03:29:55,193 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-21 03:29:55,434 INFO L384 CDTParser]: Found 1 translation units. [2023-12-21 03:29:55,435 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-sets/test_mutex.i [2023-12-21 03:29:55,448 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f93a2b488/e47a174e90134fa4802950c4cbb49a40/FLAG1290d1cc3 [2023-12-21 03:29:55,458 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f93a2b488/e47a174e90134fa4802950c4cbb49a40 [2023-12-21 03:29:55,460 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-21 03:29:55,461 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-21 03:29:55,462 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-21 03:29:55,462 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-21 03:29:55,468 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-21 03:29:55,469 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 03:29:55" (1/1) ... [2023-12-21 03:29:55,470 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f8b06d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:29:55, skipping insertion in model container [2023-12-21 03:29:55,470 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 03:29:55" (1/1) ... [2023-12-21 03:29:55,515 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-21 03:29:55,791 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-sets/test_mutex.i[25842,25855] [2023-12-21 03:29:55,800 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-sets/test_mutex.i[25967,25980] [2023-12-21 03:29:55,803 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-sets/test_mutex.i[26082,26095] [2023-12-21 03:29:55,811 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-21 03:29:55,828 INFO L202 MainTranslator]: Completed pre-run [2023-12-21 03:29:55,876 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-sets/test_mutex.i[25842,25855] [2023-12-21 03:29:55,877 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-sets/test_mutex.i[25967,25980] [2023-12-21 03:29:55,877 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-sets/test_mutex.i[26082,26095] [2023-12-21 03:29:55,878 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-21 03:29:55,905 INFO L206 MainTranslator]: Completed translation [2023-12-21 03:29:55,906 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:29:55 WrapperNode [2023-12-21 03:29:55,906 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-21 03:29:55,907 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-21 03:29:55,907 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-21 03:29:55,907 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-21 03:29:55,915 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:29:55" (1/1) ... [2023-12-21 03:29:55,931 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:29:55" (1/1) ... [2023-12-21 03:29:55,956 INFO L138 Inliner]: procedures = 139, calls = 57, calls flagged for inlining = 14, calls inlined = 13, statements flattened = 140 [2023-12-21 03:29:55,957 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-21 03:29:55,957 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-21 03:29:55,957 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-21 03:29:55,957 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-21 03:29:55,968 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:29:55" (1/1) ... [2023-12-21 03:29:55,968 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:29:55" (1/1) ... [2023-12-21 03:29:55,972 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:29:55" (1/1) ... [2023-12-21 03:29:56,001 INFO L175 MemorySlicer]: Split 22 memory accesses to 2 slices as follows [2, 20]. 91 percent of accesses are in the largest equivalence class. The 4 initializations are split as follows [2, 2]. The 7 writes are split as follows [0, 7]. [2023-12-21 03:29:56,001 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:29:55" (1/1) ... [2023-12-21 03:29:56,001 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:29:55" (1/1) ... [2023-12-21 03:29:56,014 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:29:55" (1/1) ... [2023-12-21 03:29:56,017 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:29:55" (1/1) ... [2023-12-21 03:29:56,019 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:29:55" (1/1) ... [2023-12-21 03:29:56,020 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:29:55" (1/1) ... [2023-12-21 03:29:56,023 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-21 03:29:56,024 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-21 03:29:56,024 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-21 03:29:56,024 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-21 03:29:56,024 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:29:55" (1/1) ... [2023-12-21 03:29:56,029 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-21 03:29:56,041 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 03:29:56,061 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-21 03:29:56,068 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-21 03:29:56,088 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2023-12-21 03:29:56,089 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2023-12-21 03:29:56,089 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-12-21 03:29:56,089 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-12-21 03:29:56,089 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-12-21 03:29:56,089 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2023-12-21 03:29:56,089 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2023-12-21 03:29:56,090 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-21 03:29:56,090 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-12-21 03:29:56,090 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-12-21 03:29:56,090 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_in_set [2023-12-21 03:29:56,090 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_in_set [2023-12-21 03:29:56,090 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-12-21 03:29:56,090 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-12-21 03:29:56,090 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-21 03:29:56,090 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2023-12-21 03:29:56,090 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2023-12-21 03:29:56,090 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-21 03:29:56,090 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-12-21 03:29:56,091 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_successful_malloc [2023-12-21 03:29:56,091 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_successful_malloc [2023-12-21 03:29:56,091 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-21 03:29:56,107 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-21 03:29:56,224 INFO L241 CfgBuilder]: Building ICFG [2023-12-21 03:29:56,225 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-21 03:29:56,412 INFO L282 CfgBuilder]: Performing block encoding [2023-12-21 03:29:56,497 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-21 03:29:56,497 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-12-21 03:29:56,498 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 03:29:56 BoogieIcfgContainer [2023-12-21 03:29:56,498 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-21 03:29:56,499 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-21 03:29:56,500 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-21 03:29:56,502 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-21 03:29:56,502 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 03:29:55" (1/3) ... [2023-12-21 03:29:56,503 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@575d11f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 03:29:56, skipping insertion in model container [2023-12-21 03:29:56,503 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:29:55" (2/3) ... [2023-12-21 03:29:56,503 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@575d11f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 03:29:56, skipping insertion in model container [2023-12-21 03:29:56,503 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 03:29:56" (3/3) ... [2023-12-21 03:29:56,504 INFO L112 eAbstractionObserver]: Analyzing ICFG test_mutex.i [2023-12-21 03:29:56,518 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-21 03:29:56,518 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2023-12-21 03:29:56,557 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-21 03:29:56,562 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@5f26f744, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-21 03:29:56,562 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-12-21 03:29:56,565 INFO L276 IsEmpty]: Start isEmpty. Operand has 55 states, 35 states have (on average 1.4) internal successors, (49), 38 states have internal predecessors, (49), 11 states have call successors, (11), 5 states have call predecessors, (11), 5 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-12-21 03:29:56,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-12-21 03:29:56,572 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 03:29:56,573 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 03:29:56,573 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 03:29:56,576 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 03:29:56,577 INFO L85 PathProgramCache]: Analyzing trace with hash 771595544, now seen corresponding path program 1 times [2023-12-21 03:29:56,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 03:29:56,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789031282] [2023-12-21 03:29:56,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 03:29:56,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 03:29:56,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 03:29:56,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 03:29:56,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 03:29:56,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-21 03:29:56,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 03:29:56,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-21 03:29:56,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 03:29:56,868 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-21 03:29:56,869 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 03:29:56,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789031282] [2023-12-21 03:29:56,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [789031282] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 03:29:56,870 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 03:29:56,870 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 03:29:56,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100232907] [2023-12-21 03:29:56,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 03:29:56,878 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 03:29:56,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 03:29:56,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 03:29:56,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 03:29:56,908 INFO L87 Difference]: Start difference. First operand has 55 states, 35 states have (on average 1.4) internal successors, (49), 38 states have internal predecessors, (49), 11 states have call successors, (11), 5 states have call predecessors, (11), 5 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 2 states have internal predecessors, (14), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2023-12-21 03:29:57,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 03:29:57,059 INFO L93 Difference]: Finished difference Result 115 states and 161 transitions. [2023-12-21 03:29:57,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 03:29:57,061 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 2 states have internal predecessors, (14), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 24 [2023-12-21 03:29:57,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 03:29:57,069 INFO L225 Difference]: With dead ends: 115 [2023-12-21 03:29:57,069 INFO L226 Difference]: Without dead ends: 60 [2023-12-21 03:29:57,073 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 03:29:57,076 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 29 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 03:29:57,077 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 43 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 03:29:57,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2023-12-21 03:29:57,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 53. [2023-12-21 03:29:57,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 34 states have (on average 1.2058823529411764) internal successors, (41), 36 states have internal predecessors, (41), 11 states have call successors, (11), 5 states have call predecessors, (11), 5 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-12-21 03:29:57,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 63 transitions. [2023-12-21 03:29:57,114 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 63 transitions. Word has length 24 [2023-12-21 03:29:57,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 03:29:57,114 INFO L495 AbstractCegarLoop]: Abstraction has 53 states and 63 transitions. [2023-12-21 03:29:57,114 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 2 states have internal predecessors, (14), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2023-12-21 03:29:57,115 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 63 transitions. [2023-12-21 03:29:57,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-12-21 03:29:57,116 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 03:29:57,116 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 03:29:57,116 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-21 03:29:57,117 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 03:29:57,117 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 03:29:57,117 INFO L85 PathProgramCache]: Analyzing trace with hash -85566308, now seen corresponding path program 1 times [2023-12-21 03:29:57,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 03:29:57,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666236670] [2023-12-21 03:29:57,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 03:29:57,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 03:29:57,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 03:29:57,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 03:29:57,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 03:29:57,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-21 03:29:57,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 03:29:57,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-21 03:29:57,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 03:29:57,330 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-21 03:29:57,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 03:29:57,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1666236670] [2023-12-21 03:29:57,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1666236670] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 03:29:57,331 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 03:29:57,331 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-21 03:29:57,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195226513] [2023-12-21 03:29:57,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 03:29:57,333 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 03:29:57,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 03:29:57,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 03:29:57,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 03:29:57,334 INFO L87 Difference]: Start difference. First operand 53 states and 63 transitions. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-12-21 03:29:57,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 03:29:57,514 INFO L93 Difference]: Finished difference Result 66 states and 82 transitions. [2023-12-21 03:29:57,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 03:29:57,515 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 24 [2023-12-21 03:29:57,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 03:29:57,518 INFO L225 Difference]: With dead ends: 66 [2023-12-21 03:29:57,518 INFO L226 Difference]: Without dead ends: 64 [2023-12-21 03:29:57,519 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-21 03:29:57,525 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 32 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 03:29:57,526 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 94 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 03:29:57,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2023-12-21 03:29:57,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 57. [2023-12-21 03:29:57,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 37 states have (on average 1.1891891891891893) internal successors, (44), 39 states have internal predecessors, (44), 11 states have call successors, (11), 5 states have call predecessors, (11), 6 states have return successors, (14), 12 states have call predecessors, (14), 11 states have call successors, (14) [2023-12-21 03:29:57,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 69 transitions. [2023-12-21 03:29:57,555 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 69 transitions. Word has length 24 [2023-12-21 03:29:57,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 03:29:57,555 INFO L495 AbstractCegarLoop]: Abstraction has 57 states and 69 transitions. [2023-12-21 03:29:57,555 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-12-21 03:29:57,555 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 69 transitions. [2023-12-21 03:29:57,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-12-21 03:29:57,556 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 03:29:57,556 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 03:29:57,556 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-21 03:29:57,557 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 03:29:57,557 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 03:29:57,557 INFO L85 PathProgramCache]: Analyzing trace with hash 1489036997, now seen corresponding path program 1 times [2023-12-21 03:29:57,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 03:29:57,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893919738] [2023-12-21 03:29:57,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 03:29:57,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 03:29:57,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 03:29:57,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 03:29:57,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 03:29:57,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-21 03:29:57,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 03:29:57,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-21 03:29:57,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 03:29:57,937 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-21 03:29:57,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 03:29:57,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [893919738] [2023-12-21 03:29:57,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [893919738] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 03:29:57,938 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 03:29:57,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-21 03:29:57,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108988079] [2023-12-21 03:29:57,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 03:29:57,942 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-21 03:29:57,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 03:29:57,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-21 03:29:57,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-21 03:29:57,944 INFO L87 Difference]: Start difference. First operand 57 states and 69 transitions. Second operand has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 5 states have internal predecessors, (14), 1 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-12-21 03:29:58,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 03:29:58,413 INFO L93 Difference]: Finished difference Result 172 states and 225 transitions. [2023-12-21 03:29:58,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-21 03:29:58,414 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 5 states have internal predecessors, (14), 1 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 24 [2023-12-21 03:29:58,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 03:29:58,420 INFO L225 Difference]: With dead ends: 172 [2023-12-21 03:29:58,421 INFO L226 Difference]: Without dead ends: 121 [2023-12-21 03:29:58,424 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2023-12-21 03:29:58,426 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 119 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 261 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 291 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 03:29:58,428 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 103 Invalid, 291 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 261 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 03:29:58,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2023-12-21 03:29:58,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 102. [2023-12-21 03:29:58,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 68 states have (on average 1.2352941176470589) internal successors, (84), 74 states have internal predecessors, (84), 18 states have call successors, (18), 9 states have call predecessors, (18), 13 states have return successors, (29), 18 states have call predecessors, (29), 18 states have call successors, (29) [2023-12-21 03:29:58,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 131 transitions. [2023-12-21 03:29:58,443 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 131 transitions. Word has length 24 [2023-12-21 03:29:58,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 03:29:58,444 INFO L495 AbstractCegarLoop]: Abstraction has 102 states and 131 transitions. [2023-12-21 03:29:58,444 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 5 states have internal predecessors, (14), 1 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-12-21 03:29:58,444 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 131 transitions. [2023-12-21 03:29:58,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-12-21 03:29:58,445 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 03:29:58,446 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 03:29:58,446 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-21 03:29:58,446 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 03:29:58,446 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 03:29:58,446 INFO L85 PathProgramCache]: Analyzing trace with hash -97933331, now seen corresponding path program 1 times [2023-12-21 03:29:58,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 03:29:58,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [106834510] [2023-12-21 03:29:58,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 03:29:58,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 03:29:58,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 03:30:00,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 03:30:00,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 03:30:00,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-21 03:30:00,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 03:30:00,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-21 03:30:00,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 03:30:01,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 03:30:01,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 03:30:01,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-21 03:30:01,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 03:30:01,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-21 03:30:01,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 03:30:01,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-21 03:30:01,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 03:30:01,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-21 03:30:01,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 03:30:02,053 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 8 proven. 15 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-21 03:30:02,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 03:30:02,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [106834510] [2023-12-21 03:30:02,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [106834510] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 03:30:02,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [546313949] [2023-12-21 03:30:02,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 03:30:02,055 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 03:30:02,055 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 03:30:02,060 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) [2023-12-21 03:30:02,088 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-21 03:30:02,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 03:30:02,271 INFO L262 TraceCheckSpWp]: Trace formula consists of 412 conjuncts, 150 conjunts are in the unsatisfiable core [2023-12-21 03:30:02,283 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 03:30:02,585 INFO L349 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2023-12-21 03:30:02,585 INFO L378 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 [2023-12-21 03:30:02,791 INFO L349 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2023-12-21 03:30:02,793 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2023-12-21 03:30:03,592 INFO L378 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 [2023-12-21 03:30:03,747 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-21 03:30:03,763 INFO L349 Elim1Store]: treesize reduction 14, result has 39.1 percent of original size [2023-12-21 03:30:03,764 INFO L378 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 1 case distinctions, treesize of input 15 treesize of output 18 [2023-12-21 03:30:03,767 INFO L378 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 [2023-12-21 03:30:03,889 INFO L349 Elim1Store]: treesize reduction 177, result has 36.1 percent of original size [2023-12-21 03:30:03,889 INFO L378 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 116 treesize of output 252 [2023-12-21 03:30:03,903 INFO L378 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 [2023-12-21 03:30:03,933 INFO L378 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 [2023-12-21 03:30:03,970 INFO L378 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 [2023-12-21 03:30:03,987 INFO L378 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 [2023-12-21 03:30:04,374 INFO L349 Elim1Store]: treesize reduction 83, result has 30.3 percent of original size [2023-12-21 03:30:04,375 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 353 treesize of output 336 [2023-12-21 03:30:04,837 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-21 03:30:04,838 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 15 [2023-12-21 03:30:04,854 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-21 03:30:04,855 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 15 [2023-12-21 03:30:04,918 INFO L378 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 [2023-12-21 03:30:05,136 INFO L378 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 156 treesize of output 135 [2023-12-21 03:30:05,183 INFO L378 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 [2023-12-21 03:30:06,224 INFO L349 Elim1Store]: treesize reduction 282, result has 22.5 percent of original size [2023-12-21 03:30:06,224 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 201 treesize of output 96 [2023-12-21 03:30:07,619 INFO L349 Elim1Store]: treesize reduction 12, result has 67.6 percent of original size [2023-12-21 03:30:07,620 INFO L378 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 25 treesize of output 37 [2023-12-21 03:30:10,515 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 11 proven. 11 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-12-21 03:30:10,515 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 03:30:11,450 INFO L349 Elim1Store]: treesize reduction 13, result has 69.0 percent of original size [2023-12-21 03:30:11,450 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 632 treesize of output 577 [2023-12-21 03:30:11,498 INFO L349 Elim1Store]: treesize reduction 38, result has 56.8 percent of original size [2023-12-21 03:30:11,498 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 165 treesize of output 190 [2023-12-21 03:30:11,524 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-21 03:30:11,525 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 297 treesize of output 269 [2023-12-21 03:30:11,560 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-21 03:30:11,658 INFO L349 Elim1Store]: treesize reduction 16, result has 66.7 percent of original size [2023-12-21 03:30:11,658 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 148 treesize of output 182 [2023-12-21 03:30:11,823 INFO L349 Elim1Store]: treesize reduction 17, result has 37.0 percent of original size [2023-12-21 03:30:11,824 INFO L378 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 3 case distinctions, treesize of input 44 treesize of output 30 [2023-12-21 03:30:11,854 INFO L349 Elim1Store]: treesize reduction 17, result has 37.0 percent of original size [2023-12-21 03:30:11,856 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 44 treesize of output 30 [2023-12-21 03:30:11,877 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-21 03:30:11,877 INFO L378 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 43 treesize of output 47 [2023-12-21 03:30:11,908 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-21 03:30:11,908 INFO L378 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 220 treesize of output 176 [2023-12-21 03:30:11,976 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 8 treesize of output 4 [2023-12-21 03:30:12,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [546313949] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 03:30:12,049 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-21 03:30:12,049 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 28] total 58 [2023-12-21 03:30:12,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439972155] [2023-12-21 03:30:12,050 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-21 03:30:12,050 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 58 states [2023-12-21 03:30:12,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 03:30:12,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2023-12-21 03:30:12,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=220, Invalid=3855, Unknown=85, NotChecked=0, Total=4160 [2023-12-21 03:30:12,053 INFO L87 Difference]: Start difference. First operand 102 states and 131 transitions. Second operand has 58 states, 38 states have (on average 1.8421052631578947) internal successors, (70), 42 states have internal predecessors, (70), 16 states have call successors, (18), 10 states have call predecessors, (18), 15 states have return successors, (16), 15 states have call predecessors, (16), 14 states have call successors, (16) [2023-12-21 03:30:20,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 03:30:20,423 INFO L93 Difference]: Finished difference Result 248 states and 309 transitions. [2023-12-21 03:30:20,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2023-12-21 03:30:20,427 INFO L78 Accepts]: Start accepts. Automaton has has 58 states, 38 states have (on average 1.8421052631578947) internal successors, (70), 42 states have internal predecessors, (70), 16 states have call successors, (18), 10 states have call predecessors, (18), 15 states have return successors, (16), 15 states have call predecessors, (16), 14 states have call successors, (16) Word has length 55 [2023-12-21 03:30:20,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 03:30:20,429 INFO L225 Difference]: With dead ends: 248 [2023-12-21 03:30:20,429 INFO L226 Difference]: Without dead ends: 178 [2023-12-21 03:30:20,435 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 109 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2394 ImplicationChecksByTransitivity, 9.4s TimeCoverageRelationStatistics Valid=932, Invalid=11172, Unknown=106, NotChecked=0, Total=12210 [2023-12-21 03:30:20,437 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 513 mSDsluCounter, 848 mSDsCounter, 0 mSdLazyCounter, 3902 mSolverCounterSat, 218 mSolverCounterUnsat, 159 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 514 SdHoareTripleChecker+Valid, 888 SdHoareTripleChecker+Invalid, 4279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 218 IncrementalHoareTripleChecker+Valid, 3902 IncrementalHoareTripleChecker+Invalid, 159 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2023-12-21 03:30:20,438 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [514 Valid, 888 Invalid, 4279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [218 Valid, 3902 Invalid, 159 Unknown, 0 Unchecked, 3.5s Time] [2023-12-21 03:30:20,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2023-12-21 03:30:20,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 135. [2023-12-21 03:30:20,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 95 states have (on average 1.2526315789473683) internal successors, (119), 100 states have internal predecessors, (119), 20 states have call successors, (20), 13 states have call predecessors, (20), 17 states have return successors, (32), 21 states have call predecessors, (32), 20 states have call successors, (32) [2023-12-21 03:30:20,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 171 transitions. [2023-12-21 03:30:20,474 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 171 transitions. Word has length 55 [2023-12-21 03:30:20,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 03:30:20,475 INFO L495 AbstractCegarLoop]: Abstraction has 135 states and 171 transitions. [2023-12-21 03:30:20,475 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 58 states, 38 states have (on average 1.8421052631578947) internal successors, (70), 42 states have internal predecessors, (70), 16 states have call successors, (18), 10 states have call predecessors, (18), 15 states have return successors, (16), 15 states have call predecessors, (16), 14 states have call successors, (16) [2023-12-21 03:30:20,475 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 171 transitions. [2023-12-21 03:30:20,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-12-21 03:30:20,476 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 03:30:20,476 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 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] [2023-12-21 03:30:20,485 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-12-21 03:30:20,682 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 03:30:20,682 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 03:30:20,683 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 03:30:20,683 INFO L85 PathProgramCache]: Analyzing trace with hash -946371460, now seen corresponding path program 1 times [2023-12-21 03:30:20,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 03:30:20,683 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1632361499] [2023-12-21 03:30:20,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 03:30:20,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 03:30:20,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 03:30:20,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 03:30:20,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 03:30:20,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-21 03:30:20,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 03:30:20,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-21 03:30:20,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 03:30:20,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 03:30:20,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 03:30:20,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-21 03:30:20,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 03:30:20,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-21 03:30:20,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 03:30:20,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 03:30:20,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 03:30:20,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-21 03:30:20,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 03:30:20,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-21 03:30:20,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 03:30:20,833 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2023-12-21 03:30:20,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 03:30:20,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1632361499] [2023-12-21 03:30:20,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1632361499] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 03:30:20,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [651847889] [2023-12-21 03:30:20,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 03:30:20,834 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 03:30:20,834 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 03:30:20,836 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) [2023-12-21 03:30:20,841 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-21 03:30:20,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 03:30:20,982 INFO L262 TraceCheckSpWp]: Trace formula consists of 369 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-21 03:30:20,986 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 03:30:20,999 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-12-21 03:30:20,999 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 03:30:21,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [651847889] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 03:30:21,000 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 03:30:21,000 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 6 [2023-12-21 03:30:21,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534128261] [2023-12-21 03:30:21,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 03:30:21,000 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 03:30:21,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 03:30:21,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 03:30:21,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-21 03:30:21,001 INFO L87 Difference]: Start difference. First operand 135 states and 171 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, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2023-12-21 03:30:21,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 03:30:21,061 INFO L93 Difference]: Finished difference Result 244 states and 311 transitions. [2023-12-21 03:30:21,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-21 03:30:21,061 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, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) Word has length 66 [2023-12-21 03:30:21,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 03:30:21,064 INFO L225 Difference]: With dead ends: 244 [2023-12-21 03:30:21,064 INFO L226 Difference]: Without dead ends: 145 [2023-12-21 03:30:21,065 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-21 03:30:21,065 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 0 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 03:30:21,068 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 158 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 03:30:21,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2023-12-21 03:30:21,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 137. [2023-12-21 03:30:21,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 96 states have (on average 1.2395833333333333) internal successors, (119), 101 states have internal predecessors, (119), 20 states have call successors, (20), 13 states have call predecessors, (20), 18 states have return successors, (33), 22 states have call predecessors, (33), 20 states have call successors, (33) [2023-12-21 03:30:21,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 172 transitions. [2023-12-21 03:30:21,098 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 172 transitions. Word has length 66 [2023-12-21 03:30:21,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 03:30:21,098 INFO L495 AbstractCegarLoop]: Abstraction has 137 states and 172 transitions. [2023-12-21 03:30:21,098 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, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2023-12-21 03:30:21,099 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 172 transitions. [2023-12-21 03:30:21,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-12-21 03:30:21,102 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 03:30:21,102 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 03:30:21,112 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-21 03:30:21,308 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 03:30:21,309 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 03:30:21,309 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 03:30:21,309 INFO L85 PathProgramCache]: Analyzing trace with hash 49680093, now seen corresponding path program 1 times [2023-12-21 03:30:21,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 03:30:21,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376845820] [2023-12-21 03:30:21,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 03:30:21,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 03:30:21,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 03:30:22,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 03:30:22,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 03:30:22,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-21 03:30:22,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 03:30:22,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-21 03:30:22,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 03:30:23,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 03:30:23,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 03:30:23,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-21 03:30:23,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 03:30:23,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-21 03:30:23,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 03:30:23,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-21 03:30:23,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 03:30:24,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-21 03:30:24,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 03:30:24,261 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 6 proven. 20 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-12-21 03:30:24,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 03:30:24,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376845820] [2023-12-21 03:30:24,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [376845820] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 03:30:24,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2135254995] [2023-12-21 03:30:24,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 03:30:24,262 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 03:30:24,262 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 03:30:24,265 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) [2023-12-21 03:30:24,275 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-21 03:30:24,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 03:30:24,430 INFO L262 TraceCheckSpWp]: Trace formula consists of 422 conjuncts, 158 conjunts are in the unsatisfiable core [2023-12-21 03:30:24,437 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 03:30:24,675 INFO L349 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2023-12-21 03:30:24,675 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 16 [2023-12-21 03:30:24,903 INFO L349 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2023-12-21 03:30:24,904 INFO L378 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 19 treesize of output 16 [2023-12-21 03:30:26,174 INFO L349 Elim1Store]: treesize reduction 182, result has 37.9 percent of original size [2023-12-21 03:30:26,174 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 6 new quantified variables, introduced 11 case distinctions, treesize of input 434 treesize of output 357 [2023-12-21 03:30:26,287 INFO L378 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 [2023-12-21 03:30:26,356 INFO L378 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 [2023-12-21 03:30:26,660 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-21 03:30:26,688 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-21 03:30:26,689 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 164 treesize of output 95 [2023-12-21 03:30:26,886 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-21 03:30:26,892 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-21 03:30:26,920 INFO L349 Elim1Store]: treesize reduction 42, result has 16.0 percent of original size [2023-12-21 03:30:26,921 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 5 case distinctions, treesize of input 290 treesize of output 229 [2023-12-21 03:30:27,229 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 654 treesize of output 591 [2023-12-21 03:30:27,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-21 03:30:27,677 INFO L349 Elim1Store]: treesize reduction 67, result has 30.2 percent of original size [2023-12-21 03:30:27,677 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 616 treesize of output 608 [2023-12-21 03:30:27,855 WARN L214 Elim1Store]: Array PQE input equivalent to false [2023-12-21 03:30:28,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-21 03:30:28,018 INFO L349 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2023-12-21 03:30:28,018 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 40 treesize of output 16 [2023-12-21 03:30:29,232 INFO L378 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 302 treesize of output 280 [2023-12-21 03:30:29,299 INFO L349 Elim1Store]: treesize reduction 52, result has 26.8 percent of original size [2023-12-21 03:30:29,300 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 231 treesize of output 253 [2023-12-21 03:30:29,354 INFO L349 Elim1Store]: treesize reduction 72, result has 27.3 percent of original size [2023-12-21 03:30:29,355 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 234 treesize of output 262 [2023-12-21 03:30:29,368 INFO L378 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 217 treesize of output 215 [2023-12-21 03:30:29,428 INFO L349 Elim1Store]: treesize reduction 72, result has 27.3 percent of original size [2023-12-21 03:30:29,428 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 215 treesize of output 243 [2023-12-21 03:30:29,472 INFO L378 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 198 treesize of output 196 [2023-12-21 03:30:30,571 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 12 [2023-12-21 03:30:30,583 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 12 [2023-12-21 03:30:30,733 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 12 [2023-12-21 03:30:30,879 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 12 [2023-12-21 03:30:30,890 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 12 [2023-12-21 03:30:30,996 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 12 [2023-12-21 03:30:31,060 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 697 treesize of output 673 [2023-12-21 03:31:00,801 WARN L293 SmtUtils]: Spent 5.47s on a formula simplification. DAG size of input: 370 DAG size of output: 361 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-21 03:31:02,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-21 03:41:10,299 WARN L293 SmtUtils]: Spent 10.13m on a formula simplification. DAG size of input: 733 DAG size of output: 197 (called from [L 346] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2023-12-21 03:41:10,299 INFO L349 Elim1Store]: treesize reduction 5474, result has 11.0 percent of original size [2023-12-21 03:41:10,301 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 24 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 30 new quantified variables, introduced 106 case distinctions, treesize of input 2798 treesize of output 5504 [2023-12-21 03:41:14,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-21 03:41:14,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-21 03:41:14,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-21 03:41:14,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-21 03:41:14,155 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-12-21 03:41:14,156 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 1308 treesize of output 1188 [2023-12-21 03:41:14,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-21 03:41:14,327 INFO L378 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 130 treesize of output 118 [2023-12-21 03:41:16,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-21 03:41:16,158 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-21 03:41:16,160 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-21 03:41:16,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-21 03:41:16,178 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-21 03:41:16,221 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-21 03:41:16,369 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-21 03:41:16,534 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-21 03:41:16,557 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-21 03:41:16,584 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-21 03:41:16,584 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-21 03:41:16,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-21 03:41:16,610 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-21 03:41:16,611 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-21 03:41:16,625 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-21 03:41:16,626 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-21 03:41:16,626 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-21 03:41:16,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-21 03:41:16,735 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-21 03:41:16,793 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-21 03:41:16,988 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-21 03:41:17,009 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-21 03:41:17,023 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-21 03:41:17,051 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-21 03:41:17,104 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-21 03:41:17,159 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-21 03:41:17,202 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-21 03:41:17,279 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-21 03:41:17,283 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-21 03:41:17,344 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-21 03:41:17,348 INFO L224 Elim1Store]: Index analysis took 1135 ms [2023-12-21 03:41:17,360 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-21 03:41:19,364 INFO L349 Elim1Store]: treesize reduction 1221, result has 0.2 percent of original size [2023-12-21 03:41:19,367 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 45 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 10 new quantified variables, introduced 59 case distinctions, treesize of input 29808 treesize of output 63667 Received shutdown request... [2023-12-21 03:44:16,041 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-21 03:44:16,041 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-21 03:44:16,140 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2023-12-21 03:44:16,152 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-21 03:44:16,348 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 03:44:16,349 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 58 with TraceHistMax 3,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∨-2-790-2-6-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-792-790-6-6-1 context. [2023-12-21 03:44:16,351 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 3 remaining) [2023-12-21 03:44:16,351 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2023-12-21 03:44:16,354 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2023-12-21 03:44:16,356 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-21 03:44:16,357 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.12 03:44:16 BoogieIcfgContainer [2023-12-21 03:44:16,357 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-21 03:44:16,357 INFO L158 Benchmark]: Toolchain (without parser) took 860896.00ms. Allocated memory was 270.5MB in the beginning and 695.2MB in the end (delta: 424.7MB). Free memory was 210.4MB in the beginning and 303.5MB in the end (delta: -93.1MB). Peak memory consumption was 411.5MB. Max. memory is 8.0GB. [2023-12-21 03:44:16,358 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 176.2MB. Free memory is still 126.3MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-21 03:44:16,358 INFO L158 Benchmark]: CACSL2BoogieTranslator took 443.61ms. Allocated memory is still 270.5MB. Free memory was 210.4MB in the beginning and 190.1MB in the end (delta: 20.3MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. [2023-12-21 03:44:16,358 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.08ms. Allocated memory is still 270.5MB. Free memory was 190.1MB in the beginning and 187.7MB in the end (delta: 2.4MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-21 03:44:16,358 INFO L158 Benchmark]: Boogie Preprocessor took 65.64ms. Allocated memory is still 270.5MB. Free memory was 187.7MB in the beginning and 182.9MB in the end (delta: 4.8MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-21 03:44:16,359 INFO L158 Benchmark]: RCFGBuilder took 474.26ms. Allocated memory is still 270.5MB. Free memory was 182.8MB in the beginning and 215.0MB in the end (delta: -32.3MB). Peak memory consumption was 11.8MB. Max. memory is 8.0GB. [2023-12-21 03:44:16,359 INFO L158 Benchmark]: TraceAbstraction took 859857.54ms. Allocated memory was 270.5MB in the beginning and 695.2MB in the end (delta: 424.7MB). Free memory was 214.5MB in the beginning and 303.5MB in the end (delta: -89.0MB). Peak memory consumption was 414.4MB. Max. memory is 8.0GB. [2023-12-21 03:44:16,360 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 176.2MB. Free memory is still 126.3MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 443.61ms. Allocated memory is still 270.5MB. Free memory was 210.4MB in the beginning and 190.1MB in the end (delta: 20.3MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 50.08ms. Allocated memory is still 270.5MB. Free memory was 190.1MB in the beginning and 187.7MB in the end (delta: 2.4MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 65.64ms. Allocated memory is still 270.5MB. Free memory was 187.7MB in the beginning and 182.9MB in the end (delta: 4.8MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 474.26ms. Allocated memory is still 270.5MB. Free memory was 182.8MB in the beginning and 215.0MB in the end (delta: -32.3MB). Peak memory consumption was 11.8MB. Max. memory is 8.0GB. * TraceAbstraction took 859857.54ms. Allocated memory was 270.5MB in the beginning and 695.2MB in the end (delta: 424.7MB). Free memory was 214.5MB in the beginning and 303.5MB in the end (delta: -89.0MB). Peak memory consumption was 414.4MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 669]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 669). Cancelled while NwaCegarLoop was analyzing trace of length 58 with TraceHistMax 3,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∨-2-790-2-6-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-792-790-6-6-1 context. - TimeoutResultAtElement [Line: 673]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 673). Cancelled while NwaCegarLoop was analyzing trace of length 58 with TraceHistMax 3,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∨-2-790-2-6-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-792-790-6-6-1 context. - TimeoutResultAtElement [Line: 677]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 677). Cancelled while NwaCegarLoop was analyzing trace of length 58 with TraceHistMax 3,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∨-2-790-2-6-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-792-790-6-6-1 context. - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 55 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 859.8s, OverallIterations: 6, TraceHistogramMax: 5, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 9.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 159 mSolverCounterUnknown, 709 SdHoareTripleChecker+Valid, 4.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 693 mSDsluCounter, 1286 SdHoareTripleChecker+Invalid, 3.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1089 mSDsCounter, 267 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4370 IncrementalHoareTripleChecker+Invalid, 4796 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 267 mSolverCounterUnsat, 197 mSDtfsCounter, 4370 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 159 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 284 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 130 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2414 ImplicationChecksByTransitivity, 9.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=137occurred in iteration=5, InterpolantAutomatonStates: 73, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 84 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 14.2s InterpolantComputationTime, 314 NumberOfCodeBlocks, 314 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 307 ConstructedInterpolants, 16 QuantifiedInterpolants, 12537 SizeOfPredicates, 45 NumberOfNonLiveVariables, 781 ConjunctsInSsa, 155 ConjunctsInUnsatCore, 7 InterpolantComputations, 4 PerfectInterpolantSequences, 162/198 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown