/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.data.races.in.concurrent.programs true -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_pos.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-25 03:57:13,682 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-25 03:57:13,756 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf [2023-08-25 03:57:13,760 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-25 03:57:13,761 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-25 03:57:13,797 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-25 03:57:13,797 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-25 03:57:13,798 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-25 03:57:13,798 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-25 03:57:13,802 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-25 03:57:13,802 INFO L153 SettingsManager]: * Use SBE=true [2023-08-25 03:57:13,802 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-25 03:57:13,803 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-25 03:57:13,804 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-25 03:57:13,804 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-25 03:57:13,804 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-25 03:57:13,805 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-25 03:57:13,805 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-25 03:57:13,805 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-25 03:57:13,805 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-25 03:57:13,806 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-25 03:57:13,806 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-25 03:57:13,806 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-25 03:57:13,807 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-25 03:57:13,807 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-25 03:57:13,807 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-25 03:57:13,807 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-25 03:57:13,808 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 03:57:13,808 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-25 03:57:13,808 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-25 03:57:13,809 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-25 03:57:13,809 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-25 03:57:13,810 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-25 03:57:13,810 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-25 03:57:13,810 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-25 03:57:13,810 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-25 03:57:14,136 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-25 03:57:14,156 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-25 03:57:14,158 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-25 03:57:14,159 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-25 03:57:14,160 INFO L274 PluginConnector]: CDTParser initialized [2023-08-25 03:57:14,161 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_pos.i [2023-08-25 03:57:15,269 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-25 03:57:15,560 INFO L384 CDTParser]: Found 1 translation units. [2023-08-25 03:57:15,561 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_pos.i [2023-08-25 03:57:15,571 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7dcff5eea/243e94278b6e4ad7874025f10fb8aefd/FLAG335abc1c4 [2023-08-25 03:57:15,582 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7dcff5eea/243e94278b6e4ad7874025f10fb8aefd [2023-08-25 03:57:15,584 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-25 03:57:15,585 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-25 03:57:15,586 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-25 03:57:15,586 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-25 03:57:15,588 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-25 03:57:15,589 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 03:57:15" (1/1) ... [2023-08-25 03:57:15,590 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c02b83f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:57:15, skipping insertion in model container [2023-08-25 03:57:15,590 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 03:57:15" (1/1) ... [2023-08-25 03:57:15,628 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-25 03:57:15,922 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 03:57:15,935 INFO L201 MainTranslator]: Completed pre-run [2023-08-25 03:57:15,953 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [231] [2023-08-25 03:57:15,961 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [232] [2023-08-25 03:57:15,978 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 03:57:16,018 INFO L206 MainTranslator]: Completed translation [2023-08-25 03:57:16,019 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:57:16 WrapperNode [2023-08-25 03:57:16,019 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-25 03:57:16,020 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-25 03:57:16,020 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-25 03:57:16,020 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-25 03:57:16,026 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:57:16" (1/1) ... [2023-08-25 03:57:16,055 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:57:16" (1/1) ... [2023-08-25 03:57:16,075 INFO L138 Inliner]: procedures = 162, calls = 29, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 53 [2023-08-25 03:57:16,075 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-25 03:57:16,076 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-25 03:57:16,076 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-25 03:57:16,077 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-25 03:57:16,083 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:57:16" (1/1) ... [2023-08-25 03:57:16,083 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:57:16" (1/1) ... [2023-08-25 03:57:16,088 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:57:16" (1/1) ... [2023-08-25 03:57:16,088 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:57:16" (1/1) ... [2023-08-25 03:57:16,091 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:57:16" (1/1) ... [2023-08-25 03:57:16,093 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:57:16" (1/1) ... [2023-08-25 03:57:16,098 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:57:16" (1/1) ... [2023-08-25 03:57:16,099 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:57:16" (1/1) ... [2023-08-25 03:57:16,100 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-25 03:57:16,101 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-25 03:57:16,101 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-25 03:57:16,101 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-25 03:57:16,101 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:57:16" (1/1) ... [2023-08-25 03:57:16,107 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 03:57:16,118 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 03:57:16,128 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-25 03:57:16,134 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-25 03:57:16,156 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-25 03:57:16,157 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-25 03:57:16,157 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-25 03:57:16,157 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-25 03:57:16,157 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-25 03:57:16,157 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-25 03:57:16,157 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-25 03:57:16,158 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-25 03:57:16,158 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-25 03:57:16,158 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-25 03:57:16,159 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-25 03:57:16,255 INFO L236 CfgBuilder]: Building ICFG [2023-08-25 03:57:16,257 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-25 03:57:16,415 INFO L277 CfgBuilder]: Performing block encoding [2023-08-25 03:57:16,421 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-25 03:57:16,421 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-25 03:57:16,423 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 03:57:16 BoogieIcfgContainer [2023-08-25 03:57:16,423 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-25 03:57:16,424 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-25 03:57:16,424 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-25 03:57:16,427 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-25 03:57:16,427 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 03:57:15" (1/3) ... [2023-08-25 03:57:16,427 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@402ccf63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 03:57:16, skipping insertion in model container [2023-08-25 03:57:16,428 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:57:16" (2/3) ... [2023-08-25 03:57:16,428 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@402ccf63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 03:57:16, skipping insertion in model container [2023-08-25 03:57:16,428 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 03:57:16" (3/3) ... [2023-08-25 03:57:16,429 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_41-traces-ex-7_unknown_1_pos.i [2023-08-25 03:57:16,444 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-25 03:57:16,444 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2023-08-25 03:57:16,444 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-25 03:57:16,501 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-25 03:57:16,537 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 74 places, 72 transitions, 149 flow [2023-08-25 03:57:16,591 INFO L124 PetriNetUnfolderBase]: 2/71 cut-off events. [2023-08-25 03:57:16,591 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 03:57:16,597 INFO L83 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 71 events. 2/71 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 52 event pairs, 0 based on Foata normal form. 0/66 useless extension candidates. Maximal degree in co-relation 42. Up to 2 conditions per place. [2023-08-25 03:57:16,598 INFO L82 GeneralOperation]: Start removeDead. Operand has 74 places, 72 transitions, 149 flow [2023-08-25 03:57:16,602 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 73 places, 71 transitions, 145 flow [2023-08-25 03:57:16,606 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 03:57:16,618 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 73 places, 71 transitions, 145 flow [2023-08-25 03:57:16,622 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 73 places, 71 transitions, 145 flow [2023-08-25 03:57:16,622 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 73 places, 71 transitions, 145 flow [2023-08-25 03:57:16,652 INFO L124 PetriNetUnfolderBase]: 2/71 cut-off events. [2023-08-25 03:57:16,652 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 03:57:16,653 INFO L83 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 71 events. 2/71 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 52 event pairs, 0 based on Foata normal form. 0/66 useless extension candidates. Maximal degree in co-relation 42. Up to 2 conditions per place. [2023-08-25 03:57:16,654 INFO L119 LiptonReduction]: Number of co-enabled transitions 810 [2023-08-25 03:57:19,034 INFO L134 LiptonReduction]: Checked pairs total: 2800 [2023-08-25 03:57:19,034 INFO L136 LiptonReduction]: Total number of compositions: 66 [2023-08-25 03:57:19,045 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-25 03:57:19,050 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=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@495ba5d6, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 03:57:19,050 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2023-08-25 03:57:19,053 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 03:57:19,053 INFO L124 PetriNetUnfolderBase]: 0/11 cut-off events. [2023-08-25 03:57:19,053 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 03:57:19,053 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:57:19,054 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-25 03:57:19,054 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-08-25 03:57:19,058 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:57:19,058 INFO L85 PathProgramCache]: Analyzing trace with hash -1182657591, now seen corresponding path program 1 times [2023-08-25 03:57:19,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:57:19,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510101228] [2023-08-25 03:57:19,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:57:19,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:57:19,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:57:19,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 03:57:19,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 03:57:19,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510101228] [2023-08-25 03:57:19,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1510101228] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 03:57:19,230 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 03:57:19,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 03:57:19,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305855632] [2023-08-25 03:57:19,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 03:57:19,238 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 03:57:19,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 03:57:19,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 03:57:19,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 03:57:19,260 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 138 [2023-08-25 03:57:19,262 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 22 places, 19 transitions, 41 flow. Second operand has 3 states, 3 states have (on average 64.33333333333333) internal successors, (193), 3 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:57:19,262 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 03:57:19,262 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 138 [2023-08-25 03:57:19,263 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 03:57:19,347 INFO L124 PetriNetUnfolderBase]: 53/141 cut-off events. [2023-08-25 03:57:19,347 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 03:57:19,348 INFO L83 FinitePrefix]: Finished finitePrefix Result has 276 conditions, 141 events. 53/141 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 547 event pairs, 21 based on Foata normal form. 0/112 useless extension candidates. Maximal degree in co-relation 267. Up to 79 conditions per place. [2023-08-25 03:57:19,351 INFO L140 encePairwiseOnDemand]: 133/138 looper letters, 22 selfloop transitions, 3 changer transitions 0/27 dead transitions. [2023-08-25 03:57:19,351 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 27 transitions, 107 flow [2023-08-25 03:57:19,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 03:57:19,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 03:57:19,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 213 transitions. [2023-08-25 03:57:19,365 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5144927536231884 [2023-08-25 03:57:19,366 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 213 transitions. [2023-08-25 03:57:19,366 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 213 transitions. [2023-08-25 03:57:19,368 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 03:57:19,370 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 213 transitions. [2023-08-25 03:57:19,376 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 71.0) internal successors, (213), 3 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:57:19,381 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 138.0) internal successors, (552), 4 states have internal predecessors, (552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:57:19,381 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 138.0) internal successors, (552), 4 states have internal predecessors, (552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:57:19,383 INFO L175 Difference]: Start difference. First operand has 22 places, 19 transitions, 41 flow. Second operand 3 states and 213 transitions. [2023-08-25 03:57:19,384 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 27 transitions, 107 flow [2023-08-25 03:57:19,386 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 27 transitions, 106 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 03:57:19,387 INFO L231 Difference]: Finished difference. Result has 25 places, 20 transitions, 60 flow [2023-08-25 03:57:19,389 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=138, PETRI_DIFFERENCE_MINUEND_FLOW=38, PETRI_DIFFERENCE_MINUEND_PLACES=21, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=60, PETRI_PLACES=25, PETRI_TRANSITIONS=20} [2023-08-25 03:57:19,393 INFO L281 CegarLoopForPetriNet]: 22 programPoint places, 3 predicate places. [2023-08-25 03:57:19,394 INFO L495 AbstractCegarLoop]: Abstraction has has 25 places, 20 transitions, 60 flow [2023-08-25 03:57:19,394 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 64.33333333333333) internal successors, (193), 3 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:57:19,394 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:57:19,394 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-25 03:57:19,395 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-25 03:57:19,395 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-08-25 03:57:19,402 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:57:19,402 INFO L85 PathProgramCache]: Analyzing trace with hash -1201932869, now seen corresponding path program 1 times [2023-08-25 03:57:19,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:57:19,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [200369635] [2023-08-25 03:57:19,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:57:19,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:57:19,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:57:19,495 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 03:57:19,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 03:57:19,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [200369635] [2023-08-25 03:57:19,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [200369635] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 03:57:19,496 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 03:57:19,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 03:57:19,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157718022] [2023-08-25 03:57:19,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 03:57:19,498 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 03:57:19,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 03:57:19,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 03:57:19,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 03:57:19,500 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 138 [2023-08-25 03:57:19,500 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 20 transitions, 60 flow. Second operand has 3 states, 3 states have (on average 62.0) internal successors, (186), 3 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:57:19,501 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 03:57:19,501 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 138 [2023-08-25 03:57:19,501 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 03:57:19,544 INFO L124 PetriNetUnfolderBase]: 47/129 cut-off events. [2023-08-25 03:57:19,544 INFO L125 PetriNetUnfolderBase]: For 26/26 co-relation queries the response was YES. [2023-08-25 03:57:19,544 INFO L83 FinitePrefix]: Finished finitePrefix Result has 293 conditions, 129 events. 47/129 cut-off events. For 26/26 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 477 event pairs, 31 based on Foata normal form. 0/112 useless extension candidates. Maximal degree in co-relation 283. Up to 102 conditions per place. [2023-08-25 03:57:19,545 INFO L140 encePairwiseOnDemand]: 134/138 looper letters, 22 selfloop transitions, 4 changer transitions 1/29 dead transitions. [2023-08-25 03:57:19,545 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 29 transitions, 142 flow [2023-08-25 03:57:19,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 03:57:19,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 03:57:19,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 206 transitions. [2023-08-25 03:57:19,547 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4975845410628019 [2023-08-25 03:57:19,547 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 206 transitions. [2023-08-25 03:57:19,547 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 206 transitions. [2023-08-25 03:57:19,548 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 03:57:19,548 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 206 transitions. [2023-08-25 03:57:19,549 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 68.66666666666667) internal successors, (206), 3 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:57:19,550 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 138.0) internal successors, (552), 4 states have internal predecessors, (552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:57:19,550 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 138.0) internal successors, (552), 4 states have internal predecessors, (552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:57:19,551 INFO L175 Difference]: Start difference. First operand has 25 places, 20 transitions, 60 flow. Second operand 3 states and 206 transitions. [2023-08-25 03:57:19,551 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 29 transitions, 142 flow [2023-08-25 03:57:19,552 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 29 transitions, 132 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 03:57:19,552 INFO L231 Difference]: Finished difference. Result has 26 places, 22 transitions, 78 flow [2023-08-25 03:57:19,552 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=138, PETRI_DIFFERENCE_MINUEND_FLOW=54, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=78, PETRI_PLACES=26, PETRI_TRANSITIONS=22} [2023-08-25 03:57:19,553 INFO L281 CegarLoopForPetriNet]: 22 programPoint places, 4 predicate places. [2023-08-25 03:57:19,553 INFO L495 AbstractCegarLoop]: Abstraction has has 26 places, 22 transitions, 78 flow [2023-08-25 03:57:19,553 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 62.0) internal successors, (186), 3 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:57:19,554 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:57:19,554 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 03:57:19,554 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-25 03:57:19,554 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-08-25 03:57:19,555 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:57:19,555 INFO L85 PathProgramCache]: Analyzing trace with hash 1992320592, now seen corresponding path program 1 times [2023-08-25 03:57:19,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:57:19,555 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1422396008] [2023-08-25 03:57:19,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:57:19,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:57:19,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:57:19,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 03:57:19,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 03:57:19,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1422396008] [2023-08-25 03:57:19,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1422396008] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 03:57:19,640 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 03:57:19,640 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-25 03:57:19,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182526924] [2023-08-25 03:57:19,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 03:57:19,640 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 03:57:19,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 03:57:19,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 03:57:19,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 03:57:19,642 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 138 [2023-08-25 03:57:19,642 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 22 transitions, 78 flow. Second operand has 3 states, 3 states have (on average 67.0) internal successors, (201), 3 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:57:19,642 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 03:57:19,642 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 138 [2023-08-25 03:57:19,643 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 03:57:19,682 INFO L124 PetriNetUnfolderBase]: 37/115 cut-off events. [2023-08-25 03:57:19,683 INFO L125 PetriNetUnfolderBase]: For 47/51 co-relation queries the response was YES. [2023-08-25 03:57:19,683 INFO L83 FinitePrefix]: Finished finitePrefix Result has 279 conditions, 115 events. 37/115 cut-off events. For 47/51 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 421 event pairs, 12 based on Foata normal form. 2/105 useless extension candidates. Maximal degree in co-relation 268. Up to 56 conditions per place. [2023-08-25 03:57:19,684 INFO L140 encePairwiseOnDemand]: 134/138 looper letters, 15 selfloop transitions, 3 changer transitions 5/30 dead transitions. [2023-08-25 03:57:19,684 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 30 transitions, 150 flow [2023-08-25 03:57:19,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 03:57:19,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 03:57:19,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 216 transitions. [2023-08-25 03:57:19,686 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5217391304347826 [2023-08-25 03:57:19,686 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 216 transitions. [2023-08-25 03:57:19,686 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 216 transitions. [2023-08-25 03:57:19,686 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 03:57:19,686 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 216 transitions. [2023-08-25 03:57:19,687 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 72.0) internal successors, (216), 3 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:57:19,688 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 138.0) internal successors, (552), 4 states have internal predecessors, (552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:57:19,689 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 138.0) internal successors, (552), 4 states have internal predecessors, (552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:57:19,689 INFO L175 Difference]: Start difference. First operand has 26 places, 22 transitions, 78 flow. Second operand 3 states and 216 transitions. [2023-08-25 03:57:19,689 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 30 transitions, 150 flow [2023-08-25 03:57:19,690 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 30 transitions, 144 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 03:57:19,691 INFO L231 Difference]: Finished difference. Result has 28 places, 22 transitions, 85 flow [2023-08-25 03:57:19,691 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=138, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=85, PETRI_PLACES=28, PETRI_TRANSITIONS=22} [2023-08-25 03:57:19,692 INFO L281 CegarLoopForPetriNet]: 22 programPoint places, 6 predicate places. [2023-08-25 03:57:19,692 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 22 transitions, 85 flow [2023-08-25 03:57:19,692 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 67.0) internal successors, (201), 3 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:57:19,692 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:57:19,693 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 03:57:19,693 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-25 03:57:19,693 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-08-25 03:57:19,693 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:57:19,693 INFO L85 PathProgramCache]: Analyzing trace with hash -1509482964, now seen corresponding path program 1 times [2023-08-25 03:57:19,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:57:19,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573321829] [2023-08-25 03:57:19,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:57:19,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:57:19,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:57:19,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 03:57:19,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 03:57:19,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1573321829] [2023-08-25 03:57:19,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1573321829] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 03:57:19,763 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 03:57:19,764 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 03:57:19,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342136834] [2023-08-25 03:57:19,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 03:57:19,764 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 03:57:19,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 03:57:19,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 03:57:19,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 03:57:19,765 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 138 [2023-08-25 03:57:19,766 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 22 transitions, 85 flow. Second operand has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 3 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:57:19,766 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 03:57:19,766 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 138 [2023-08-25 03:57:19,766 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 03:57:19,795 INFO L124 PetriNetUnfolderBase]: 27/89 cut-off events. [2023-08-25 03:57:19,795 INFO L125 PetriNetUnfolderBase]: For 79/84 co-relation queries the response was YES. [2023-08-25 03:57:19,795 INFO L83 FinitePrefix]: Finished finitePrefix Result has 241 conditions, 89 events. 27/89 cut-off events. For 79/84 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 331 event pairs, 6 based on Foata normal form. 6/91 useless extension candidates. Maximal degree in co-relation 228. Up to 41 conditions per place. [2023-08-25 03:57:19,796 INFO L140 encePairwiseOnDemand]: 133/138 looper letters, 14 selfloop transitions, 5 changer transitions 1/27 dead transitions. [2023-08-25 03:57:19,796 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 27 transitions, 140 flow [2023-08-25 03:57:19,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 03:57:19,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 03:57:19,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 185 transitions. [2023-08-25 03:57:19,797 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4468599033816425 [2023-08-25 03:57:19,797 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 185 transitions. [2023-08-25 03:57:19,797 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 185 transitions. [2023-08-25 03:57:19,797 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 03:57:19,798 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 185 transitions. [2023-08-25 03:57:19,798 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 61.666666666666664) internal successors, (185), 3 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:57:19,799 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 138.0) internal successors, (552), 4 states have internal predecessors, (552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:57:19,800 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 138.0) internal successors, (552), 4 states have internal predecessors, (552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:57:19,800 INFO L175 Difference]: Start difference. First operand has 28 places, 22 transitions, 85 flow. Second operand 3 states and 185 transitions. [2023-08-25 03:57:19,800 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 27 transitions, 140 flow [2023-08-25 03:57:19,801 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 27 transitions, 132 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 03:57:19,801 INFO L231 Difference]: Finished difference. Result has 29 places, 24 transitions, 102 flow [2023-08-25 03:57:19,801 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=138, PETRI_DIFFERENCE_MINUEND_FLOW=79, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=102, PETRI_PLACES=29, PETRI_TRANSITIONS=24} [2023-08-25 03:57:19,802 INFO L281 CegarLoopForPetriNet]: 22 programPoint places, 7 predicate places. [2023-08-25 03:57:19,802 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 24 transitions, 102 flow [2023-08-25 03:57:19,802 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 3 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:57:19,803 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:57:19,803 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 03:57:19,803 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-25 03:57:19,803 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-08-25 03:57:19,803 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:57:19,803 INFO L85 PathProgramCache]: Analyzing trace with hash -879991116, now seen corresponding path program 2 times [2023-08-25 03:57:19,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:57:19,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2080380056] [2023-08-25 03:57:19,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:57:19,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:57:19,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:57:19,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 03:57:19,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 03:57:19,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2080380056] [2023-08-25 03:57:19,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2080380056] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 03:57:19,926 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 03:57:19,926 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-25 03:57:19,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735415048] [2023-08-25 03:57:19,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 03:57:19,927 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 03:57:19,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 03:57:19,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 03:57:19,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-08-25 03:57:19,928 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 138 [2023-08-25 03:57:19,929 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 24 transitions, 102 flow. Second operand has 5 states, 5 states have (on average 50.6) internal successors, (253), 5 states have internal predecessors, (253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:57:19,929 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 03:57:19,929 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 138 [2023-08-25 03:57:19,929 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 03:57:19,962 INFO L124 PetriNetUnfolderBase]: 5/36 cut-off events. [2023-08-25 03:57:19,962 INFO L125 PetriNetUnfolderBase]: For 14/14 co-relation queries the response was YES. [2023-08-25 03:57:19,962 INFO L83 FinitePrefix]: Finished finitePrefix Result has 111 conditions, 36 events. 5/36 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 52 event pairs, 0 based on Foata normal form. 1/35 useless extension candidates. Maximal degree in co-relation 98. Up to 20 conditions per place. [2023-08-25 03:57:19,962 INFO L140 encePairwiseOnDemand]: 134/138 looper letters, 12 selfloop transitions, 4 changer transitions 2/21 dead transitions. [2023-08-25 03:57:19,962 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 21 transitions, 124 flow [2023-08-25 03:57:19,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 03:57:19,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 03:57:19,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 212 transitions. [2023-08-25 03:57:19,965 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.38405797101449274 [2023-08-25 03:57:19,965 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 212 transitions. [2023-08-25 03:57:19,965 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 212 transitions. [2023-08-25 03:57:19,965 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 03:57:19,965 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 212 transitions. [2023-08-25 03:57:19,966 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 53.0) internal successors, (212), 4 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:57:19,983 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 138.0) internal successors, (690), 5 states have internal predecessors, (690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:57:19,988 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 138.0) internal successors, (690), 5 states have internal predecessors, (690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:57:19,989 INFO L175 Difference]: Start difference. First operand has 29 places, 24 transitions, 102 flow. Second operand 4 states and 212 transitions. [2023-08-25 03:57:19,989 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 21 transitions, 124 flow [2023-08-25 03:57:19,989 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 21 transitions, 105 flow, removed 3 selfloop flow, removed 5 redundant places. [2023-08-25 03:57:19,990 INFO L231 Difference]: Finished difference. Result has 25 places, 17 transitions, 62 flow [2023-08-25 03:57:19,990 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=138, PETRI_DIFFERENCE_MINUEND_FLOW=57, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=62, PETRI_PLACES=25, PETRI_TRANSITIONS=17} [2023-08-25 03:57:19,991 INFO L281 CegarLoopForPetriNet]: 22 programPoint places, 3 predicate places. [2023-08-25 03:57:19,991 INFO L495 AbstractCegarLoop]: Abstraction has has 25 places, 17 transitions, 62 flow [2023-08-25 03:57:19,991 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 50.6) internal successors, (253), 5 states have internal predecessors, (253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:57:19,991 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:57:19,991 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 03:57:19,991 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-25 03:57:19,992 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-08-25 03:57:19,992 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:57:19,992 INFO L85 PathProgramCache]: Analyzing trace with hash -545462915, now seen corresponding path program 1 times [2023-08-25 03:57:19,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:57:19,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815860906] [2023-08-25 03:57:19,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:57:19,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:57:20,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:57:20,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 03:57:20,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 03:57:20,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815860906] [2023-08-25 03:57:20,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1815860906] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 03:57:20,115 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 03:57:20,115 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 03:57:20,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570343376] [2023-08-25 03:57:20,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 03:57:20,116 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 03:57:20,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 03:57:20,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 03:57:20,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-25 03:57:20,117 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 138 [2023-08-25 03:57:20,117 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 17 transitions, 62 flow. Second operand has 4 states, 4 states have (on average 51.75) internal successors, (207), 4 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:57:20,117 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 03:57:20,118 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 138 [2023-08-25 03:57:20,118 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 03:57:20,135 INFO L124 PetriNetUnfolderBase]: 0/21 cut-off events. [2023-08-25 03:57:20,135 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-25 03:57:20,135 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59 conditions, 21 events. 0/21 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 12 event pairs, 0 based on Foata normal form. 1/22 useless extension candidates. Maximal degree in co-relation 0. Up to 10 conditions per place. [2023-08-25 03:57:20,135 INFO L140 encePairwiseOnDemand]: 133/138 looper letters, 7 selfloop transitions, 5 changer transitions 0/15 dead transitions. [2023-08-25 03:57:20,136 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 15 transitions, 78 flow [2023-08-25 03:57:20,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 03:57:20,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 03:57:20,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 209 transitions. [2023-08-25 03:57:20,137 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3786231884057971 [2023-08-25 03:57:20,137 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 209 transitions. [2023-08-25 03:57:20,137 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 209 transitions. [2023-08-25 03:57:20,137 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 03:57:20,137 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 209 transitions. [2023-08-25 03:57:20,138 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 52.25) internal successors, (209), 4 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:57:20,139 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 138.0) internal successors, (690), 5 states have internal predecessors, (690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:57:20,139 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 138.0) internal successors, (690), 5 states have internal predecessors, (690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:57:20,139 INFO L175 Difference]: Start difference. First operand has 25 places, 17 transitions, 62 flow. Second operand 4 states and 209 transitions. [2023-08-25 03:57:20,140 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 15 transitions, 78 flow [2023-08-25 03:57:20,140 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 15 transitions, 68 flow, removed 1 selfloop flow, removed 3 redundant places. [2023-08-25 03:57:20,140 INFO L231 Difference]: Finished difference. Result has 24 places, 15 transitions, 54 flow [2023-08-25 03:57:20,141 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=138, PETRI_DIFFERENCE_MINUEND_FLOW=44, PETRI_DIFFERENCE_MINUEND_PLACES=21, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=15, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=54, PETRI_PLACES=24, PETRI_TRANSITIONS=15} [2023-08-25 03:57:20,141 INFO L281 CegarLoopForPetriNet]: 22 programPoint places, 2 predicate places. [2023-08-25 03:57:20,141 INFO L495 AbstractCegarLoop]: Abstraction has has 24 places, 15 transitions, 54 flow [2023-08-25 03:57:20,142 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 51.75) internal successors, (207), 4 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:57:20,142 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:57:20,142 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 03:57:20,142 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-25 03:57:20,142 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-08-25 03:57:20,142 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:57:20,143 INFO L85 PathProgramCache]: Analyzing trace with hash 1220876838, now seen corresponding path program 1 times [2023-08-25 03:57:20,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:57:20,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364062266] [2023-08-25 03:57:20,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:57:20,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:57:20,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 03:57:20,157 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-25 03:57:20,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 03:57:20,180 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-25 03:57:20,180 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-25 03:57:20,181 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONASSERT (4 of 5 remaining) [2023-08-25 03:57:20,183 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (3 of 5 remaining) [2023-08-25 03:57:20,183 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2023-08-25 03:57:20,183 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 5 remaining) [2023-08-25 03:57:20,183 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (0 of 5 remaining) [2023-08-25 03:57:20,183 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-25 03:57:20,184 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1] [2023-08-25 03:57:20,189 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-25 03:57:20,189 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-25 03:57:20,214 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.08 03:57:20 BasicIcfg [2023-08-25 03:57:20,214 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-25 03:57:20,215 INFO L158 Benchmark]: Toolchain (without parser) took 4630.13ms. Allocated memory was 367.0MB in the beginning and 474.0MB in the end (delta: 107.0MB). Free memory was 342.2MB in the beginning and 409.2MB in the end (delta: -67.1MB). Peak memory consumption was 41.4MB. Max. memory is 16.0GB. [2023-08-25 03:57:20,215 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 367.0MB. Free memory is still 344.9MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-25 03:57:20,216 INFO L158 Benchmark]: CACSL2BoogieTranslator took 433.25ms. Allocated memory is still 367.0MB. Free memory was 342.2MB in the beginning and 322.8MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2023-08-25 03:57:20,216 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.72ms. Allocated memory is still 367.0MB. Free memory was 322.8MB in the beginning and 321.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 03:57:20,216 INFO L158 Benchmark]: Boogie Preprocessor took 23.79ms. Allocated memory is still 367.0MB. Free memory was 321.1MB in the beginning and 319.6MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-25 03:57:20,216 INFO L158 Benchmark]: RCFGBuilder took 322.05ms. Allocated memory is still 367.0MB. Free memory was 319.6MB in the beginning and 307.1MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. [2023-08-25 03:57:20,217 INFO L158 Benchmark]: TraceAbstraction took 3790.22ms. Allocated memory was 367.0MB in the beginning and 474.0MB in the end (delta: 107.0MB). Free memory was 306.0MB in the beginning and 409.2MB in the end (delta: -103.2MB). Peak memory consumption was 5.8MB. Max. memory is 16.0GB. [2023-08-25 03:57:20,219 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 367.0MB. Free memory is still 344.9MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 433.25ms. Allocated memory is still 367.0MB. Free memory was 342.2MB in the beginning and 322.8MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 55.72ms. Allocated memory is still 367.0MB. Free memory was 322.8MB in the beginning and 321.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 23.79ms. Allocated memory is still 367.0MB. Free memory was 321.1MB in the beginning and 319.6MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.0GB. * RCFGBuilder took 322.05ms. Allocated memory is still 367.0MB. Free memory was 319.6MB in the beginning and 307.1MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. * TraceAbstraction took 3790.22ms. Allocated memory was 367.0MB in the beginning and 474.0MB in the end (delta: 107.0MB). Free memory was 306.0MB in the beginning and 409.2MB in the end (delta: -103.2MB). Peak memory consumption was 5.8MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 231]: Unsoundness Warning unspecified type, defaulting to int C: short [231] - GenericResultAtLocation [Line: 232]: Unsoundness Warning unspecified type, defaulting to int C: short [232] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.4s, 73 PlacesBefore, 22 PlacesAfterwards, 71 TransitionsBefore, 19 TransitionsAfterwards, 810 CoEnabledTransitionPairs, 7 FixpointIterations, 27 TrivialSequentialCompositions, 32 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 1 ChoiceCompositions, 66 TotalNumberOfCompositions, 2800 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1445, independent: 1230, independent conditional: 0, independent unconditional: 1230, dependent: 215, dependent conditional: 0, dependent unconditional: 215, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 484, independent: 452, independent conditional: 0, independent unconditional: 452, dependent: 32, dependent conditional: 0, dependent unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1445, independent: 778, independent conditional: 0, independent unconditional: 778, dependent: 183, dependent conditional: 0, dependent unconditional: 183, unknown: 484, unknown conditional: 0, unknown unconditional: 484] , Statistics on independence cache: Total cache size (in pairs): 49, Positive cache size: 36, Positive conditional cache size: 0, Positive unconditional cache size: 36, Negative cache size: 13, Negative conditional cache size: 0, Negative unconditional cache size: 13, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - CounterExampleResult [Line: 18]: assertion can be violated assertion can be violated We found a FailurePath: [L681] 0 int g = 0; [L682] 0 pthread_mutex_t A = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t D = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L693] 0 pthread_t id; [L694] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [A={3:0}, D={4:0}, arg={0:0}, g=0, id={5:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1] [L687] 1 g = 17 VAL [A={3:0}, D={4:0}, arg={0:0}, arg={0:0}, g=17] [L690] 1 return ((void *)0); [L698] EXPR 0 g == 0 [L698] CALL 0 __VERIFIER_assert(g == 0) [L19] COND TRUE 0 !(cond) [L19] CALL 0 reach_error() [L18] COND FALSE 0 !(0) [L18] 0 __assert_fail ("0", "13-privatized_41-traces-ex-7_unknown_1_pos.c", 3, __extension__ __PRETTY_FUNCTION__) VAL [A={3:0}, D={4:0}, \result={0:0}, arg={0:0}, arg={0:0}, g=17] - UnprovableResult [Line: 698]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 694]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 687]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 88 locations, 5 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 3.7s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.5s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 37 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 37 mSDsluCounter, 8 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 159 IncrementalHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 8 mSDtfsCounter, 159 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 18 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=102occurred in iteration=4, InterpolantAutomatonStates: 20, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 73 NumberOfCodeBlocks, 73 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 52 ConstructedInterpolants, 0 QuantifiedInterpolants, 185 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 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 proved your program to be incorrect! [2023-08-25 03:57:20,240 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...