/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/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-SemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_69-refine-protected-loop-interval_true.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-wip.dk.datarace-free-lbe-02cf818-m [2023-11-17 15:33:48,550 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-17 15:33:48,638 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-SemanticLbe.epf [2023-11-17 15:33:48,671 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-17 15:33:48,673 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-17 15:33:48,673 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-17 15:33:48,674 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-17 15:33:48,674 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-17 15:33:48,675 INFO L153 SettingsManager]: * Use SBE=true [2023-11-17 15:33:48,678 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-17 15:33:48,679 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-17 15:33:48,679 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-17 15:33:48,679 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-17 15:33:48,681 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-17 15:33:48,681 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-17 15:33:48,681 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-17 15:33:48,681 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-17 15:33:48,682 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-17 15:33:48,682 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-17 15:33:48,682 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-17 15:33:48,683 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-17 15:33:48,683 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-17 15:33:48,684 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-17 15:33:48,684 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-11-17 15:33:48,684 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-17 15:33:48,684 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-17 15:33:48,685 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-17 15:33:48,686 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-17 15:33:48,686 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-17 15:33:48,686 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-17 15:33:48,687 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-17 15:33:48,687 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-17 15:33:48,687 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-11-17 15:33:48,922 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-17 15:33:48,946 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-17 15:33:48,949 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-17 15:33:48,950 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-17 15:33:48,950 INFO L274 PluginConnector]: CDTParser initialized [2023-11-17 15:33:48,951 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_69-refine-protected-loop-interval_true.i [2023-11-17 15:33:50,205 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-17 15:33:50,489 INFO L384 CDTParser]: Found 1 translation units. [2023-11-17 15:33:50,495 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_69-refine-protected-loop-interval_true.i [2023-11-17 15:33:50,507 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f193070f7/a9bc22dcceed433eae4472090d450929/FLAG84c50070f [2023-11-17 15:33:50,520 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f193070f7/a9bc22dcceed433eae4472090d450929 [2023-11-17 15:33:50,522 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-17 15:33:50,523 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-11-17 15:33:50,524 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-17 15:33:50,524 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-17 15:33:50,528 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-17 15:33:50,528 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 03:33:50" (1/1) ... [2023-11-17 15:33:50,529 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42b3e76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:33:50, skipping insertion in model container [2023-11-17 15:33:50,530 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 03:33:50" (1/1) ... [2023-11-17 15:33:50,576 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-17 15:33:50,721 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_69-refine-protected-loop-interval_true.i[1107,1120] [2023-11-17 15:33:50,898 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-17 15:33:50,911 INFO L202 MainTranslator]: Completed pre-run [2023-11-17 15:33:50,923 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_69-refine-protected-loop-interval_true.i[1107,1120] [2023-11-17 15:33:50,957 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-17 15:33:50,989 INFO L206 MainTranslator]: Completed translation [2023-11-17 15:33:50,989 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:33:50 WrapperNode [2023-11-17 15:33:50,989 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-17 15:33:50,993 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-17 15:33:50,993 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-17 15:33:50,993 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-17 15:33:50,999 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:33:50" (1/1) ... [2023-11-17 15:33:51,020 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:33:50" (1/1) ... [2023-11-17 15:33:51,040 INFO L138 Inliner]: procedures = 166, calls = 27, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 105 [2023-11-17 15:33:51,041 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-17 15:33:51,042 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-17 15:33:51,042 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-17 15:33:51,042 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-17 15:33:51,051 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:33:50" (1/1) ... [2023-11-17 15:33:51,051 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:33:50" (1/1) ... [2023-11-17 15:33:51,053 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:33:50" (1/1) ... [2023-11-17 15:33:51,053 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:33:50" (1/1) ... [2023-11-17 15:33:51,058 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:33:50" (1/1) ... [2023-11-17 15:33:51,062 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:33:50" (1/1) ... [2023-11-17 15:33:51,063 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:33:50" (1/1) ... [2023-11-17 15:33:51,065 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:33:50" (1/1) ... [2023-11-17 15:33:51,067 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-17 15:33:51,068 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-17 15:33:51,068 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-17 15:33:51,068 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-17 15:33:51,069 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:33:50" (1/1) ... [2023-11-17 15:33:51,073 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-17 15:33:51,090 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-17 15:33:51,102 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) [2023-11-17 15:33:51,105 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 [2023-11-17 15:33:51,124 INFO L130 BoogieDeclarations]: Found specification of procedure worker [2023-11-17 15:33:51,125 INFO L138 BoogieDeclarations]: Found implementation of procedure worker [2023-11-17 15:33:51,125 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-17 15:33:51,125 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-17 15:33:51,125 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-17 15:33:51,125 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-17 15:33:51,125 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-17 15:33:51,125 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-17 15:33:51,125 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-17 15:33:51,126 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-17 15:33:51,126 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-17 15:33:51,127 WARN L211 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-17 15:33:51,251 INFO L239 CfgBuilder]: Building ICFG [2023-11-17 15:33:51,253 INFO L265 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-17 15:33:51,422 INFO L280 CfgBuilder]: Performing block encoding [2023-11-17 15:33:51,444 INFO L302 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-17 15:33:51,445 INFO L307 CfgBuilder]: Removed 3 assume(true) statements. [2023-11-17 15:33:51,446 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 03:33:51 BoogieIcfgContainer [2023-11-17 15:33:51,446 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-17 15:33:51,448 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-17 15:33:51,448 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-17 15:33:51,451 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-17 15:33:51,451 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 03:33:50" (1/3) ... [2023-11-17 15:33:51,452 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e45c998 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 03:33:51, skipping insertion in model container [2023-11-17 15:33:51,452 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:33:50" (2/3) ... [2023-11-17 15:33:51,453 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e45c998 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 03:33:51, skipping insertion in model container [2023-11-17 15:33:51,453 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 03:33:51" (3/3) ... [2023-11-17 15:33:51,454 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_69-refine-protected-loop-interval_true.i [2023-11-17 15:33:51,467 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-17 15:33:51,468 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-17 15:33:51,468 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-17 15:33:51,520 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-17 15:33:51,554 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 108 places, 114 transitions, 232 flow [2023-11-17 15:33:51,597 INFO L124 PetriNetUnfolderBase]: 10/113 cut-off events. [2023-11-17 15:33:51,597 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-17 15:33:51,604 INFO L83 FinitePrefix]: Finished finitePrefix Result has 117 conditions, 113 events. 10/113 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 201 event pairs, 0 based on Foata normal form. 0/101 useless extension candidates. Maximal degree in co-relation 82. Up to 2 conditions per place. [2023-11-17 15:33:51,604 INFO L82 GeneralOperation]: Start removeDead. Operand has 108 places, 114 transitions, 232 flow [2023-11-17 15:33:51,608 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 107 places, 113 transitions, 229 flow [2023-11-17 15:33:51,611 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-11-17 15:33:51,622 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 107 places, 113 transitions, 229 flow [2023-11-17 15:33:51,625 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 107 places, 113 transitions, 229 flow [2023-11-17 15:33:51,626 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 107 places, 113 transitions, 229 flow [2023-11-17 15:33:51,651 INFO L124 PetriNetUnfolderBase]: 10/113 cut-off events. [2023-11-17 15:33:51,652 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-17 15:33:51,653 INFO L83 FinitePrefix]: Finished finitePrefix Result has 117 conditions, 113 events. 10/113 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 202 event pairs, 0 based on Foata normal form. 0/101 useless extension candidates. Maximal degree in co-relation 82. Up to 2 conditions per place. [2023-11-17 15:33:51,655 INFO L119 LiptonReduction]: Number of co-enabled transitions 3234 [2023-11-17 15:33:54,560 INFO L134 LiptonReduction]: Checked pairs total: 5464 [2023-11-17 15:33:54,561 INFO L136 LiptonReduction]: Total number of compositions: 108 [2023-11-17 15:33:54,576 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-17 15:33:54,582 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=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;@59bf4592, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-17 15:33:54,582 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2023-11-17 15:33:54,587 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-17 15:33:54,587 INFO L124 PetriNetUnfolderBase]: 3/17 cut-off events. [2023-11-17 15:33:54,587 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-17 15:33:54,587 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 15:33:54,588 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-17 15:33:54,589 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-11-17 15:33:54,593 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 15:33:54,593 INFO L85 PathProgramCache]: Analyzing trace with hash 1329022659, now seen corresponding path program 1 times [2023-11-17 15:33:54,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 15:33:54,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643682724] [2023-11-17 15:33:54,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 15:33:54,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 15:33:54,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 15:33:54,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 15:33:54,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 15:33:54,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643682724] [2023-11-17 15:33:54,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1643682724] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 15:33:54,916 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 15:33:54,916 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-17 15:33:54,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559149866] [2023-11-17 15:33:54,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 15:33:54,926 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-17 15:33:54,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 15:33:54,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-17 15:33:54,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-17 15:33:54,957 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 222 [2023-11-17 15:33:54,961 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 27 transitions, 57 flow. Second operand has 3 states, 3 states have (on average 87.66666666666667) internal successors, (263), 3 states have internal predecessors, (263), 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) [2023-11-17 15:33:54,962 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 15:33:54,962 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 222 [2023-11-17 15:33:54,963 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 15:33:55,067 INFO L124 PetriNetUnfolderBase]: 133/241 cut-off events. [2023-11-17 15:33:55,068 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-17 15:33:55,069 INFO L83 FinitePrefix]: Finished finitePrefix Result has 486 conditions, 241 events. 133/241 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 728 event pairs, 64 based on Foata normal form. 0/186 useless extension candidates. Maximal degree in co-relation 477. Up to 191 conditions per place. [2023-11-17 15:33:55,071 INFO L140 encePairwiseOnDemand]: 214/222 looper letters, 30 selfloop transitions, 3 changer transitions 1/35 dead transitions. [2023-11-17 15:33:55,071 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 35 transitions, 141 flow [2023-11-17 15:33:55,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-17 15:33:55,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-17 15:33:55,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 299 transitions. [2023-11-17 15:33:55,084 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44894894894894893 [2023-11-17 15:33:55,085 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 299 transitions. [2023-11-17 15:33:55,085 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 299 transitions. [2023-11-17 15:33:55,087 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 15:33:55,089 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 299 transitions. [2023-11-17 15:33:55,093 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 99.66666666666667) internal successors, (299), 3 states have internal predecessors, (299), 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) [2023-11-17 15:33:55,097 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 222.0) internal successors, (888), 4 states have internal predecessors, (888), 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) [2023-11-17 15:33:55,097 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 222.0) internal successors, (888), 4 states have internal predecessors, (888), 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) [2023-11-17 15:33:55,099 INFO L175 Difference]: Start difference. First operand has 25 places, 27 transitions, 57 flow. Second operand 3 states and 299 transitions. [2023-11-17 15:33:55,100 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 35 transitions, 141 flow [2023-11-17 15:33:55,102 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 35 transitions, 140 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-17 15:33:55,104 INFO L231 Difference]: Finished difference. Result has 27 places, 27 transitions, 78 flow [2023-11-17 15:33:55,105 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=52, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=78, PETRI_PLACES=27, PETRI_TRANSITIONS=27} [2023-11-17 15:33:55,108 INFO L281 CegarLoopForPetriNet]: 25 programPoint places, 2 predicate places. [2023-11-17 15:33:55,109 INFO L495 AbstractCegarLoop]: Abstraction has has 27 places, 27 transitions, 78 flow [2023-11-17 15:33:55,109 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 87.66666666666667) internal successors, (263), 3 states have internal predecessors, (263), 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) [2023-11-17 15:33:55,109 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 15:33:55,109 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 15:33:55,110 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-17 15:33:55,110 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-11-17 15:33:55,110 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 15:33:55,110 INFO L85 PathProgramCache]: Analyzing trace with hash -1852511783, now seen corresponding path program 1 times [2023-11-17 15:33:55,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 15:33:55,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744336988] [2023-11-17 15:33:55,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 15:33:55,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 15:33:55,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 15:33:55,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 15:33:55,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 15:33:55,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1744336988] [2023-11-17 15:33:55,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1744336988] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 15:33:55,189 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 15:33:55,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-17 15:33:55,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61074777] [2023-11-17 15:33:55,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 15:33:55,191 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-17 15:33:55,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 15:33:55,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-17 15:33:55,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-17 15:33:55,193 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 222 [2023-11-17 15:33:55,193 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 27 transitions, 78 flow. Second operand has 3 states, 3 states have (on average 95.33333333333333) internal successors, (286), 3 states have internal predecessors, (286), 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) [2023-11-17 15:33:55,193 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 15:33:55,193 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 222 [2023-11-17 15:33:55,193 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 15:33:55,240 INFO L124 PetriNetUnfolderBase]: 23/71 cut-off events. [2023-11-17 15:33:55,240 INFO L125 PetriNetUnfolderBase]: For 12/12 co-relation queries the response was YES. [2023-11-17 15:33:55,241 INFO L83 FinitePrefix]: Finished finitePrefix Result has 151 conditions, 71 events. 23/71 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 142 event pairs, 1 based on Foata normal form. 8/72 useless extension candidates. Maximal degree in co-relation 139. Up to 41 conditions per place. [2023-11-17 15:33:55,243 INFO L140 encePairwiseOnDemand]: 216/222 looper letters, 13 selfloop transitions, 6 changer transitions 3/29 dead transitions. [2023-11-17 15:33:55,243 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 29 transitions, 126 flow [2023-11-17 15:33:55,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-17 15:33:55,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-17 15:33:55,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 302 transitions. [2023-11-17 15:33:55,248 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45345345345345345 [2023-11-17 15:33:55,248 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 302 transitions. [2023-11-17 15:33:55,249 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 302 transitions. [2023-11-17 15:33:55,249 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 15:33:55,249 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 302 transitions. [2023-11-17 15:33:55,250 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 100.66666666666667) internal successors, (302), 3 states have internal predecessors, (302), 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) [2023-11-17 15:33:55,252 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 222.0) internal successors, (888), 4 states have internal predecessors, (888), 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) [2023-11-17 15:33:55,253 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 222.0) internal successors, (888), 4 states have internal predecessors, (888), 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) [2023-11-17 15:33:55,253 INFO L175 Difference]: Start difference. First operand has 27 places, 27 transitions, 78 flow. Second operand 3 states and 302 transitions. [2023-11-17 15:33:55,253 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 29 transitions, 126 flow [2023-11-17 15:33:55,254 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 29 transitions, 120 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-17 15:33:55,255 INFO L231 Difference]: Finished difference. Result has 27 places, 25 transitions, 76 flow [2023-11-17 15:33:55,255 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=72, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=76, PETRI_PLACES=27, PETRI_TRANSITIONS=25} [2023-11-17 15:33:55,256 INFO L281 CegarLoopForPetriNet]: 25 programPoint places, 2 predicate places. [2023-11-17 15:33:55,256 INFO L495 AbstractCegarLoop]: Abstraction has has 27 places, 25 transitions, 76 flow [2023-11-17 15:33:55,256 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 95.33333333333333) internal successors, (286), 3 states have internal predecessors, (286), 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) [2023-11-17 15:33:55,257 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 15:33:55,257 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 15:33:55,257 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-17 15:33:55,257 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-11-17 15:33:55,258 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 15:33:55,258 INFO L85 PathProgramCache]: Analyzing trace with hash -2135988395, now seen corresponding path program 1 times [2023-11-17 15:33:55,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 15:33:55,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348111050] [2023-11-17 15:33:55,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 15:33:55,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 15:33:55,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 15:33:55,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 15:33:55,322 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 15:33:55,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348111050] [2023-11-17 15:33:55,323 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1348111050] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 15:33:55,323 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 15:33:55,323 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-17 15:33:55,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935584859] [2023-11-17 15:33:55,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 15:33:55,324 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-17 15:33:55,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 15:33:55,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-17 15:33:55,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-17 15:33:55,325 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 222 [2023-11-17 15:33:55,326 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 25 transitions, 76 flow. Second operand has 5 states, 5 states have (on average 85.2) internal successors, (426), 5 states have internal predecessors, (426), 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) [2023-11-17 15:33:55,326 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 15:33:55,326 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 222 [2023-11-17 15:33:55,326 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 15:33:55,427 INFO L124 PetriNetUnfolderBase]: 27/86 cut-off events. [2023-11-17 15:33:55,427 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-11-17 15:33:55,427 INFO L83 FinitePrefix]: Finished finitePrefix Result has 216 conditions, 86 events. 27/86 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 170 event pairs, 13 based on Foata normal form. 2/86 useless extension candidates. Maximal degree in co-relation 205. Up to 37 conditions per place. [2023-11-17 15:33:55,428 INFO L140 encePairwiseOnDemand]: 213/222 looper letters, 26 selfloop transitions, 8 changer transitions 3/38 dead transitions. [2023-11-17 15:33:55,428 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 38 transitions, 190 flow [2023-11-17 15:33:55,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-17 15:33:55,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-17 15:33:55,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 537 transitions. [2023-11-17 15:33:55,430 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40315315315315314 [2023-11-17 15:33:55,430 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 537 transitions. [2023-11-17 15:33:55,430 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 537 transitions. [2023-11-17 15:33:55,431 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 15:33:55,431 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 537 transitions. [2023-11-17 15:33:55,432 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 89.5) internal successors, (537), 6 states have internal predecessors, (537), 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) [2023-11-17 15:33:55,434 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 222.0) internal successors, (1554), 7 states have internal predecessors, (1554), 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) [2023-11-17 15:33:55,435 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 222.0) internal successors, (1554), 7 states have internal predecessors, (1554), 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) [2023-11-17 15:33:55,435 INFO L175 Difference]: Start difference. First operand has 27 places, 25 transitions, 76 flow. Second operand 6 states and 537 transitions. [2023-11-17 15:33:55,435 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 38 transitions, 190 flow [2023-11-17 15:33:55,436 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 38 transitions, 180 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-17 15:33:55,437 INFO L231 Difference]: Finished difference. Result has 34 places, 28 transitions, 124 flow [2023-11-17 15:33:55,437 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=65, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=124, PETRI_PLACES=34, PETRI_TRANSITIONS=28} [2023-11-17 15:33:55,438 INFO L281 CegarLoopForPetriNet]: 25 programPoint places, 9 predicate places. [2023-11-17 15:33:55,438 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 28 transitions, 124 flow [2023-11-17 15:33:55,439 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 85.2) internal successors, (426), 5 states have internal predecessors, (426), 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) [2023-11-17 15:33:55,439 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 15:33:55,439 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 15:33:55,439 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-17 15:33:55,439 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting workerErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-11-17 15:33:55,440 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 15:33:55,440 INFO L85 PathProgramCache]: Analyzing trace with hash -1791130266, now seen corresponding path program 1 times [2023-11-17 15:33:55,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 15:33:55,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312610966] [2023-11-17 15:33:55,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 15:33:55,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 15:33:55,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 15:33:55,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 15:33:55,552 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 15:33:55,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [312610966] [2023-11-17 15:33:55,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [312610966] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 15:33:55,553 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 15:33:55,554 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-17 15:33:55,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035511666] [2023-11-17 15:33:55,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 15:33:55,554 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-17 15:33:55,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 15:33:55,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-17 15:33:55,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-17 15:33:55,557 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 222 [2023-11-17 15:33:55,558 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 28 transitions, 124 flow. Second operand has 4 states, 4 states have (on average 85.0) internal successors, (340), 4 states have internal predecessors, (340), 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) [2023-11-17 15:33:55,558 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 15:33:55,558 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 222 [2023-11-17 15:33:55,559 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 15:33:55,640 INFO L124 PetriNetUnfolderBase]: 30/94 cut-off events. [2023-11-17 15:33:55,640 INFO L125 PetriNetUnfolderBase]: For 48/48 co-relation queries the response was YES. [2023-11-17 15:33:55,641 INFO L83 FinitePrefix]: Finished finitePrefix Result has 270 conditions, 94 events. 30/94 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 213 event pairs, 10 based on Foata normal form. 0/94 useless extension candidates. Maximal degree in co-relation 253. Up to 55 conditions per place. [2023-11-17 15:33:55,641 INFO L140 encePairwiseOnDemand]: 214/222 looper letters, 26 selfloop transitions, 9 changer transitions 0/36 dead transitions. [2023-11-17 15:33:55,641 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 36 transitions, 228 flow [2023-11-17 15:33:55,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-17 15:33:55,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-17 15:33:55,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 358 transitions. [2023-11-17 15:33:55,643 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40315315315315314 [2023-11-17 15:33:55,644 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 358 transitions. [2023-11-17 15:33:55,644 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 358 transitions. [2023-11-17 15:33:55,644 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 15:33:55,644 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 358 transitions. [2023-11-17 15:33:55,645 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 89.5) internal successors, (358), 4 states have internal predecessors, (358), 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) [2023-11-17 15:33:55,646 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 222.0) internal successors, (1110), 5 states have internal predecessors, (1110), 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) [2023-11-17 15:33:55,647 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 222.0) internal successors, (1110), 5 states have internal predecessors, (1110), 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) [2023-11-17 15:33:55,647 INFO L175 Difference]: Start difference. First operand has 34 places, 28 transitions, 124 flow. Second operand 4 states and 358 transitions. [2023-11-17 15:33:55,647 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 36 transitions, 228 flow [2023-11-17 15:33:55,649 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 36 transitions, 226 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-17 15:33:55,650 INFO L231 Difference]: Finished difference. Result has 37 places, 30 transitions, 180 flow [2023-11-17 15:33:55,650 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=120, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=180, PETRI_PLACES=37, PETRI_TRANSITIONS=30} [2023-11-17 15:33:55,650 INFO L281 CegarLoopForPetriNet]: 25 programPoint places, 12 predicate places. [2023-11-17 15:33:55,651 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 30 transitions, 180 flow [2023-11-17 15:33:55,651 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 85.0) internal successors, (340), 4 states have internal predecessors, (340), 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) [2023-11-17 15:33:55,651 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 15:33:55,651 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 15:33:55,651 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-17 15:33:55,652 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-11-17 15:33:55,652 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 15:33:55,652 INFO L85 PathProgramCache]: Analyzing trace with hash -33053314, now seen corresponding path program 2 times [2023-11-17 15:33:55,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 15:33:55,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967404864] [2023-11-17 15:33:55,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 15:33:55,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 15:33:55,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 15:33:55,723 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 15:33:55,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 15:33:55,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967404864] [2023-11-17 15:33:55,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [967404864] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-17 15:33:55,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [888035951] [2023-11-17 15:33:55,724 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-17 15:33:55,724 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-17 15:33:55,725 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-17 15:33:55,727 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) [2023-11-17 15:33:55,751 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-17 15:33:55,816 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-17 15:33:55,816 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-17 15:33:55,818 INFO L262 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-17 15:33:55,822 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-17 15:33:55,890 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 15:33:55,891 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-17 15:33:55,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [888035951] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 15:33:55,891 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-17 15:33:55,891 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 8 [2023-11-17 15:33:55,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877573156] [2023-11-17 15:33:55,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 15:33:55,892 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-17 15:33:55,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 15:33:55,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-17 15:33:55,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-11-17 15:33:55,901 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 222 [2023-11-17 15:33:55,902 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 30 transitions, 180 flow. Second operand has 7 states, 7 states have (on average 85.28571428571429) internal successors, (597), 7 states have internal predecessors, (597), 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) [2023-11-17 15:33:55,902 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 15:33:55,902 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 222 [2023-11-17 15:33:55,903 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 15:33:56,036 INFO L124 PetriNetUnfolderBase]: 38/118 cut-off events. [2023-11-17 15:33:56,036 INFO L125 PetriNetUnfolderBase]: For 169/169 co-relation queries the response was YES. [2023-11-17 15:33:56,037 INFO L83 FinitePrefix]: Finished finitePrefix Result has 390 conditions, 118 events. 38/118 cut-off events. For 169/169 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 286 event pairs, 15 based on Foata normal form. 2/120 useless extension candidates. Maximal degree in co-relation 372. Up to 46 conditions per place. [2023-11-17 15:33:56,037 INFO L140 encePairwiseOnDemand]: 214/222 looper letters, 36 selfloop transitions, 13 changer transitions 3/53 dead transitions. [2023-11-17 15:33:56,037 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 53 transitions, 383 flow [2023-11-17 15:33:56,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-17 15:33:56,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-11-17 15:33:56,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 797 transitions. [2023-11-17 15:33:56,040 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3988988988988989 [2023-11-17 15:33:56,040 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 797 transitions. [2023-11-17 15:33:56,040 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 797 transitions. [2023-11-17 15:33:56,041 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 15:33:56,041 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 797 transitions. [2023-11-17 15:33:56,043 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 88.55555555555556) internal successors, (797), 9 states have internal predecessors, (797), 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) [2023-11-17 15:33:56,045 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 222.0) internal successors, (2220), 10 states have internal predecessors, (2220), 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) [2023-11-17 15:33:56,046 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 222.0) internal successors, (2220), 10 states have internal predecessors, (2220), 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) [2023-11-17 15:33:56,046 INFO L175 Difference]: Start difference. First operand has 37 places, 30 transitions, 180 flow. Second operand 9 states and 797 transitions. [2023-11-17 15:33:56,046 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 53 transitions, 383 flow [2023-11-17 15:33:56,048 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 53 transitions, 373 flow, removed 3 selfloop flow, removed 1 redundant places. [2023-11-17 15:33:56,050 INFO L231 Difference]: Finished difference. Result has 47 places, 36 transitions, 268 flow [2023-11-17 15:33:56,050 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=172, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=268, PETRI_PLACES=47, PETRI_TRANSITIONS=36} [2023-11-17 15:33:56,050 INFO L281 CegarLoopForPetriNet]: 25 programPoint places, 22 predicate places. [2023-11-17 15:33:56,051 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 36 transitions, 268 flow [2023-11-17 15:33:56,051 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 85.28571428571429) internal successors, (597), 7 states have internal predecessors, (597), 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) [2023-11-17 15:33:56,051 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 15:33:56,051 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 15:33:56,064 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-17 15:33:56,257 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-17 15:33:56,258 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-11-17 15:33:56,258 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 15:33:56,258 INFO L85 PathProgramCache]: Analyzing trace with hash -985230253, now seen corresponding path program 1 times [2023-11-17 15:33:56,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 15:33:56,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797428502] [2023-11-17 15:33:56,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 15:33:56,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 15:33:56,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 15:33:56,349 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 15:33:56,349 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 15:33:56,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797428502] [2023-11-17 15:33:56,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1797428502] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 15:33:56,349 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 15:33:56,350 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-17 15:33:56,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491238626] [2023-11-17 15:33:56,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 15:33:56,350 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-17 15:33:56,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 15:33:56,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-17 15:33:56,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-17 15:33:56,352 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 222 [2023-11-17 15:33:56,352 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 36 transitions, 268 flow. Second operand has 6 states, 6 states have (on average 86.0) internal successors, (516), 6 states have internal predecessors, (516), 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) [2023-11-17 15:33:56,352 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 15:33:56,352 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 222 [2023-11-17 15:33:56,352 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 15:33:56,432 INFO L124 PetriNetUnfolderBase]: 43/132 cut-off events. [2023-11-17 15:33:56,433 INFO L125 PetriNetUnfolderBase]: For 335/335 co-relation queries the response was YES. [2023-11-17 15:33:56,433 INFO L83 FinitePrefix]: Finished finitePrefix Result has 483 conditions, 132 events. 43/132 cut-off events. For 335/335 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 312 event pairs, 13 based on Foata normal form. 2/134 useless extension candidates. Maximal degree in co-relation 460. Up to 46 conditions per place. [2023-11-17 15:33:56,434 INFO L140 encePairwiseOnDemand]: 214/222 looper letters, 33 selfloop transitions, 15 changer transitions 7/56 dead transitions. [2023-11-17 15:33:56,434 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 56 transitions, 473 flow [2023-11-17 15:33:56,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-17 15:33:56,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-17 15:33:56,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 544 transitions. [2023-11-17 15:33:56,436 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4084084084084084 [2023-11-17 15:33:56,436 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 544 transitions. [2023-11-17 15:33:56,436 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 544 transitions. [2023-11-17 15:33:56,436 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 15:33:56,437 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 544 transitions. [2023-11-17 15:33:56,438 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 90.66666666666667) internal successors, (544), 6 states have internal predecessors, (544), 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) [2023-11-17 15:33:56,439 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 222.0) internal successors, (1554), 7 states have internal predecessors, (1554), 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) [2023-11-17 15:33:56,440 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 222.0) internal successors, (1554), 7 states have internal predecessors, (1554), 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) [2023-11-17 15:33:56,440 INFO L175 Difference]: Start difference. First operand has 47 places, 36 transitions, 268 flow. Second operand 6 states and 544 transitions. [2023-11-17 15:33:56,440 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 56 transitions, 473 flow [2023-11-17 15:33:56,442 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 56 transitions, 449 flow, removed 8 selfloop flow, removed 4 redundant places. [2023-11-17 15:33:56,443 INFO L231 Difference]: Finished difference. Result has 50 places, 39 transitions, 328 flow [2023-11-17 15:33:56,444 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=248, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=328, PETRI_PLACES=50, PETRI_TRANSITIONS=39} [2023-11-17 15:33:56,444 INFO L281 CegarLoopForPetriNet]: 25 programPoint places, 25 predicate places. [2023-11-17 15:33:56,444 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 39 transitions, 328 flow [2023-11-17 15:33:56,445 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 86.0) internal successors, (516), 6 states have internal predecessors, (516), 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) [2023-11-17 15:33:56,445 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 15:33:56,445 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 15:33:56,445 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-17 15:33:56,445 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-11-17 15:33:56,446 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 15:33:56,446 INFO L85 PathProgramCache]: Analyzing trace with hash -650283978, now seen corresponding path program 2 times [2023-11-17 15:33:56,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 15:33:56,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805662100] [2023-11-17 15:33:56,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 15:33:56,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 15:33:56,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 15:33:56,509 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 15:33:56,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 15:33:56,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805662100] [2023-11-17 15:33:56,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1805662100] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 15:33:56,510 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 15:33:56,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-17 15:33:56,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012594521] [2023-11-17 15:33:56,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 15:33:56,510 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-17 15:33:56,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 15:33:56,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-17 15:33:56,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-17 15:33:56,512 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 222 [2023-11-17 15:33:56,512 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 39 transitions, 328 flow. Second operand has 6 states, 6 states have (on average 83.83333333333333) internal successors, (503), 6 states have internal predecessors, (503), 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) [2023-11-17 15:33:56,512 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 15:33:56,512 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 222 [2023-11-17 15:33:56,512 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 15:33:56,583 INFO L124 PetriNetUnfolderBase]: 40/123 cut-off events. [2023-11-17 15:33:56,583 INFO L125 PetriNetUnfolderBase]: For 425/425 co-relation queries the response was YES. [2023-11-17 15:33:56,583 INFO L83 FinitePrefix]: Finished finitePrefix Result has 475 conditions, 123 events. 40/123 cut-off events. For 425/425 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 288 event pairs, 16 based on Foata normal form. 2/125 useless extension candidates. Maximal degree in co-relation 450. Up to 71 conditions per place. [2023-11-17 15:33:56,584 INFO L140 encePairwiseOnDemand]: 213/222 looper letters, 0 selfloop transitions, 0 changer transitions 44/44 dead transitions. [2023-11-17 15:33:56,584 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 44 transitions, 420 flow [2023-11-17 15:33:56,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-17 15:33:56,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-17 15:33:56,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 589 transitions. [2023-11-17 15:33:56,586 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.379021879021879 [2023-11-17 15:33:56,586 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 589 transitions. [2023-11-17 15:33:56,586 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 589 transitions. [2023-11-17 15:33:56,587 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 15:33:56,587 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 589 transitions. [2023-11-17 15:33:56,588 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 84.14285714285714) internal successors, (589), 7 states have internal predecessors, (589), 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) [2023-11-17 15:33:56,590 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 222.0) internal successors, (1776), 8 states have internal predecessors, (1776), 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) [2023-11-17 15:33:56,590 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 222.0) internal successors, (1776), 8 states have internal predecessors, (1776), 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) [2023-11-17 15:33:56,591 INFO L175 Difference]: Start difference. First operand has 50 places, 39 transitions, 328 flow. Second operand 7 states and 589 transitions. [2023-11-17 15:33:56,591 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 44 transitions, 420 flow [2023-11-17 15:33:56,592 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 44 transitions, 366 flow, removed 6 selfloop flow, removed 6 redundant places. [2023-11-17 15:33:56,593 INFO L231 Difference]: Finished difference. Result has 49 places, 0 transitions, 0 flow [2023-11-17 15:33:56,593 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=264, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=0, PETRI_PLACES=49, PETRI_TRANSITIONS=0} [2023-11-17 15:33:56,594 INFO L281 CegarLoopForPetriNet]: 25 programPoint places, 24 predicate places. [2023-11-17 15:33:56,594 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 0 transitions, 0 flow [2023-11-17 15:33:56,594 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 83.83333333333333) internal successors, (503), 6 states have internal predecessors, (503), 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) [2023-11-17 15:33:56,596 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 5 remaining) [2023-11-17 15:33:56,597 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining) [2023-11-17 15:33:56,597 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr1ASSERT_VIOLATIONERROR_FUNCTION (2 of 5 remaining) [2023-11-17 15:33:56,597 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 5 remaining) [2023-11-17 15:33:56,597 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr1ASSERT_VIOLATIONERROR_FUNCTION (0 of 5 remaining) [2023-11-17 15:33:56,597 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-17 15:33:56,598 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1] [2023-11-17 15:33:56,602 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-17 15:33:56,602 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-17 15:33:56,605 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.11 03:33:56 BasicIcfg [2023-11-17 15:33:56,605 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-17 15:33:56,606 INFO L158 Benchmark]: Toolchain (without parser) took 6083.32ms. Allocated memory was 206.6MB in the beginning and 253.8MB in the end (delta: 47.2MB). Free memory was 161.3MB in the beginning and 100.6MB in the end (delta: 60.7MB). Peak memory consumption was 108.9MB. Max. memory is 8.0GB. [2023-11-17 15:33:56,606 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 206.6MB. Free memory is still 166.1MB. There was no memory consumed. Max. memory is 8.0GB. [2023-11-17 15:33:56,607 INFO L158 Benchmark]: CACSL2BoogieTranslator took 468.67ms. Allocated memory is still 206.6MB. Free memory was 161.3MB in the beginning and 141.6MB in the end (delta: 19.7MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. [2023-11-17 15:33:56,607 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.95ms. Allocated memory is still 206.6MB. Free memory was 141.6MB in the beginning and 139.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-11-17 15:33:56,607 INFO L158 Benchmark]: Boogie Preprocessor took 25.68ms. Allocated memory is still 206.6MB. Free memory was 139.2MB in the beginning and 137.8MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-11-17 15:33:56,608 INFO L158 Benchmark]: RCFGBuilder took 378.54ms. Allocated memory is still 206.6MB. Free memory was 137.8MB in the beginning and 177.6MB in the end (delta: -39.8MB). Peak memory consumption was 17.7MB. Max. memory is 8.0GB. [2023-11-17 15:33:56,608 INFO L158 Benchmark]: TraceAbstraction took 5157.44ms. Allocated memory was 206.6MB in the beginning and 253.8MB in the end (delta: 47.2MB). Free memory was 176.6MB in the beginning and 100.6MB in the end (delta: 76.0MB). Peak memory consumption was 122.7MB. Max. memory is 8.0GB. [2023-11-17 15:33:56,610 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 206.6MB. Free memory is still 166.1MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 468.67ms. Allocated memory is still 206.6MB. Free memory was 161.3MB in the beginning and 141.6MB in the end (delta: 19.7MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 47.95ms. Allocated memory is still 206.6MB. Free memory was 141.6MB in the beginning and 139.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 25.68ms. Allocated memory is still 206.6MB. Free memory was 139.2MB in the beginning and 137.8MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 378.54ms. Allocated memory is still 206.6MB. Free memory was 137.8MB in the beginning and 177.6MB in the end (delta: -39.8MB). Peak memory consumption was 17.7MB. Max. memory is 8.0GB. * TraceAbstraction took 5157.44ms. Allocated memory was 206.6MB in the beginning and 253.8MB in the end (delta: 47.2MB). Free memory was 176.6MB in the beginning and 100.6MB in the end (delta: 76.0MB). Peak memory consumption was 122.7MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.9s, 107 PlacesBefore, 25 PlacesAfterwards, 113 TransitionsBefore, 27 TransitionsAfterwards, 3234 CoEnabledTransitionPairs, 6 FixpointIterations, 29 TrivialSequentialCompositions, 50 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 25 ConcurrentYvCompositions, 4 ChoiceCompositions, 108 TotalNumberOfCompositions, 5464 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4156, independent: 3977, independent conditional: 0, independent unconditional: 3977, dependent: 179, dependent conditional: 0, dependent unconditional: 179, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2354, independent: 2300, independent conditional: 0, independent unconditional: 2300, dependent: 54, dependent conditional: 0, dependent unconditional: 54, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2354, independent: 2287, independent conditional: 0, independent unconditional: 2287, dependent: 67, dependent conditional: 0, dependent unconditional: 67, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 67, independent: 13, independent conditional: 0, independent unconditional: 13, dependent: 54, dependent conditional: 0, dependent unconditional: 54, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 159, independent: 34, independent conditional: 0, independent unconditional: 34, dependent: 125, dependent conditional: 0, dependent unconditional: 125, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 4156, independent: 1677, independent conditional: 0, independent unconditional: 1677, dependent: 125, dependent conditional: 0, dependent unconditional: 125, unknown: 2354, unknown conditional: 0, unknown unconditional: 2354] , Statistics on independence cache: Total cache size (in pairs): 182, Positive cache size: 162, Positive conditional cache size: 0, Positive unconditional cache size: 162, Negative cache size: 20, Negative conditional cache size: 0, Negative unconditional cache size: 20, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 149 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: 5.0s, OverallIterations: 7, TraceHistogramMax: 2, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 108 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 108 mSDsluCounter, 20 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 8 mSDsCounter, 20 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 508 IncrementalHoareTripleChecker+Invalid, 528 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 20 mSolverCounterUnsat, 12 mSDtfsCounter, 508 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 57 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=328occurred in iteration=6, InterpolantAutomatonStates: 38, 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, 0.7s InterpolantComputationTime, 119 NumberOfCodeBlocks, 119 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 111 ConstructedInterpolants, 0 QuantifiedInterpolants, 265 SizeOfPredicates, 4 NumberOfNonLiveVariables, 147 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 8 InterpolantComputations, 7 PerfectInterpolantSequences, 15/19 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 - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-17 15:33:56,627 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...