/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/weaver/popl20-prod-cons3.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-wip.dk.datarace-free-lbe-02cf818-m [2023-11-17 16:29:15,553 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-17 16:29:15,599 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 16:29:15,618 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-17 16:29:15,619 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-17 16:29:15,619 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-17 16:29:15,620 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-17 16:29:15,620 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-17 16:29:15,621 INFO L153 SettingsManager]: * Use SBE=true [2023-11-17 16:29:15,621 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-17 16:29:15,621 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-17 16:29:15,622 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-17 16:29:15,622 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-17 16:29:15,622 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-17 16:29:15,623 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-17 16:29:15,623 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-17 16:29:15,623 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-17 16:29:15,624 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-17 16:29:15,624 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-17 16:29:15,624 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-17 16:29:15,625 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-17 16:29:15,625 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-17 16:29:15,626 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-17 16:29:15,626 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-11-17 16:29:15,626 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-17 16:29:15,627 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-17 16:29:15,627 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-17 16:29:15,627 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-17 16:29:15,628 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-17 16:29:15,628 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-17 16:29:15,628 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-17 16:29:15,629 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-17 16:29:15,629 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-11-17 16:29:15,864 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-17 16:29:15,888 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-17 16:29:15,891 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-17 16:29:15,892 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-17 16:29:15,895 INFO L274 PluginConnector]: CDTParser initialized [2023-11-17 16:29:15,896 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-prod-cons3.wvr.c [2023-11-17 16:29:17,025 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-17 16:29:17,229 INFO L384 CDTParser]: Found 1 translation units. [2023-11-17 16:29:17,230 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-prod-cons3.wvr.c [2023-11-17 16:29:17,238 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b18915366/e2a042b29b8e4d42b3ce0bb4228c1cb3/FLAGa64ec6e3a [2023-11-17 16:29:17,255 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b18915366/e2a042b29b8e4d42b3ce0bb4228c1cb3 [2023-11-17 16:29:17,257 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-17 16:29:17,258 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-11-17 16:29:17,261 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-17 16:29:17,261 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-17 16:29:17,264 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-17 16:29:17,264 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 04:29:17" (1/1) ... [2023-11-17 16:29:17,265 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20ab0f8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 04:29:17, skipping insertion in model container [2023-11-17 16:29:17,265 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 04:29:17" (1/1) ... [2023-11-17 16:29:17,291 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-17 16:29:17,416 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-prod-cons3.wvr.c[4059,4072] [2023-11-17 16:29:17,424 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-17 16:29:17,431 INFO L202 MainTranslator]: Completed pre-run [2023-11-17 16:29:17,464 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-prod-cons3.wvr.c[4059,4072] [2023-11-17 16:29:17,467 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-17 16:29:17,474 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-17 16:29:17,474 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-17 16:29:17,480 INFO L206 MainTranslator]: Completed translation [2023-11-17 16:29:17,480 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 04:29:17 WrapperNode [2023-11-17 16:29:17,480 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-17 16:29:17,481 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-17 16:29:17,481 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-17 16:29:17,481 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-17 16:29:17,487 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 04:29:17" (1/1) ... [2023-11-17 16:29:17,495 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 04:29:17" (1/1) ... [2023-11-17 16:29:17,520 INFO L138 Inliner]: procedures = 26, calls = 73, calls flagged for inlining = 15, calls inlined = 17, statements flattened = 279 [2023-11-17 16:29:17,520 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-17 16:29:17,520 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-17 16:29:17,521 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-17 16:29:17,521 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-17 16:29:17,527 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 04:29:17" (1/1) ... [2023-11-17 16:29:17,527 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 04:29:17" (1/1) ... [2023-11-17 16:29:17,531 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 04:29:17" (1/1) ... [2023-11-17 16:29:17,531 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 04:29:17" (1/1) ... [2023-11-17 16:29:17,551 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 04:29:17" (1/1) ... [2023-11-17 16:29:17,563 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 04:29:17" (1/1) ... [2023-11-17 16:29:17,565 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 04:29:17" (1/1) ... [2023-11-17 16:29:17,566 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 04:29:17" (1/1) ... [2023-11-17 16:29:17,569 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-17 16:29:17,569 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-17 16:29:17,569 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-17 16:29:17,570 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-17 16:29:17,570 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 04:29:17" (1/1) ... [2023-11-17 16:29:17,574 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-17 16:29:17,595 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-17 16:29:17,610 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 16:29:17,614 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 16:29:17,641 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-17 16:29:17,641 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-17 16:29:17,641 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-17 16:29:17,641 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-17 16:29:17,641 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-17 16:29:17,641 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-17 16:29:17,641 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-17 16:29:17,641 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-17 16:29:17,642 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-17 16:29:17,642 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-17 16:29:17,642 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2023-11-17 16:29:17,642 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2023-11-17 16:29:17,642 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-17 16:29:17,642 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-17 16:29:17,642 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-17 16:29:17,642 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-17 16:29:17,643 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-17 16:29:17,643 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-17 16:29:17,643 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-17 16:29:17,644 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 16:29:17,739 INFO L239 CfgBuilder]: Building ICFG [2023-11-17 16:29:17,742 INFO L265 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-17 16:29:18,177 INFO L280 CfgBuilder]: Performing block encoding [2023-11-17 16:29:18,286 INFO L302 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-17 16:29:18,286 INFO L307 CfgBuilder]: Removed 5 assume(true) statements. [2023-11-17 16:29:18,288 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 04:29:18 BoogieIcfgContainer [2023-11-17 16:29:18,288 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-17 16:29:18,290 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-17 16:29:18,290 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-17 16:29:18,293 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-17 16:29:18,293 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 04:29:17" (1/3) ... [2023-11-17 16:29:18,294 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49400ef6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 04:29:18, skipping insertion in model container [2023-11-17 16:29:18,294 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 04:29:17" (2/3) ... [2023-11-17 16:29:18,294 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49400ef6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 04:29:18, skipping insertion in model container [2023-11-17 16:29:18,295 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 04:29:18" (3/3) ... [2023-11-17 16:29:18,296 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-prod-cons3.wvr.c [2023-11-17 16:29:18,312 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-17 16:29:18,313 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-17 16:29:18,313 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-17 16:29:18,409 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2023-11-17 16:29:18,451 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 244 places, 249 transitions, 526 flow [2023-11-17 16:29:18,542 INFO L124 PetriNetUnfolderBase]: 18/245 cut-off events. [2023-11-17 16:29:18,542 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-11-17 16:29:18,548 INFO L83 FinitePrefix]: Finished finitePrefix Result has 262 conditions, 245 events. 18/245 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 145 event pairs, 0 based on Foata normal form. 0/226 useless extension candidates. Maximal degree in co-relation 210. Up to 3 conditions per place. [2023-11-17 16:29:18,548 INFO L82 GeneralOperation]: Start removeDead. Operand has 244 places, 249 transitions, 526 flow [2023-11-17 16:29:18,558 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 227 places, 232 transitions, 488 flow [2023-11-17 16:29:18,570 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-11-17 16:29:18,585 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 227 places, 232 transitions, 488 flow [2023-11-17 16:29:18,588 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 227 places, 232 transitions, 488 flow [2023-11-17 16:29:18,589 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 227 places, 232 transitions, 488 flow [2023-11-17 16:29:18,654 INFO L124 PetriNetUnfolderBase]: 18/232 cut-off events. [2023-11-17 16:29:18,654 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-11-17 16:29:18,656 INFO L83 FinitePrefix]: Finished finitePrefix Result has 249 conditions, 232 events. 18/232 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 146 event pairs, 0 based on Foata normal form. 0/214 useless extension candidates. Maximal degree in co-relation 210. Up to 3 conditions per place. [2023-11-17 16:29:18,659 INFO L119 LiptonReduction]: Number of co-enabled transitions 2746 [2023-11-17 16:29:26,513 INFO L134 LiptonReduction]: Checked pairs total: 4566 [2023-11-17 16:29:26,513 INFO L136 LiptonReduction]: Total number of compositions: 239 [2023-11-17 16:29:26,526 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-17 16:29:26,531 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;@78af345e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-17 16:29:26,531 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2023-11-17 16:29:26,537 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-17 16:29:26,537 INFO L124 PetriNetUnfolderBase]: 5/35 cut-off events. [2023-11-17 16:29:26,537 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-11-17 16:29:26,537 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 16:29:26,538 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 16:29:26,538 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-11-17 16:29:26,542 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 16:29:26,542 INFO L85 PathProgramCache]: Analyzing trace with hash 1396490786, now seen corresponding path program 1 times [2023-11-17 16:29:26,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 16:29:26,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974036743] [2023-11-17 16:29:26,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 16:29:26,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 16:29:26,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 16:29:27,041 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 16:29:27,042 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 16:29:27,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [974036743] [2023-11-17 16:29:27,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [974036743] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 16:29:27,042 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 16:29:27,043 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-17 16:29:27,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145827298] [2023-11-17 16:29:27,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 16:29:27,051 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-17 16:29:27,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 16:29:27,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-17 16:29:27,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-17 16:29:27,074 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 213 out of 488 [2023-11-17 16:29:27,077 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 36 transitions, 96 flow. Second operand has 4 states, 4 states have (on average 219.5) internal successors, (878), 4 states have internal predecessors, (878), 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 16:29:27,077 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 16:29:27,077 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 213 of 488 [2023-11-17 16:29:27,078 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 16:29:27,416 INFO L124 PetriNetUnfolderBase]: 1705/2492 cut-off events. [2023-11-17 16:29:27,417 INFO L125 PetriNetUnfolderBase]: For 215/215 co-relation queries the response was YES. [2023-11-17 16:29:27,421 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5072 conditions, 2492 events. 1705/2492 cut-off events. For 215/215 co-relation queries the response was YES. Maximal size of possible extension queue 127. Compared 10701 event pairs, 181 based on Foata normal form. 0/2184 useless extension candidates. Maximal degree in co-relation 4280. Up to 805 conditions per place. [2023-11-17 16:29:27,431 INFO L140 encePairwiseOnDemand]: 483/488 looper letters, 80 selfloop transitions, 5 changer transitions 0/86 dead transitions. [2023-11-17 16:29:27,432 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 86 transitions, 387 flow [2023-11-17 16:29:27,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-17 16:29:27,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-17 16:29:27,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1152 transitions. [2023-11-17 16:29:27,447 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4721311475409836 [2023-11-17 16:29:27,447 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1152 transitions. [2023-11-17 16:29:27,447 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1152 transitions. [2023-11-17 16:29:27,450 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 16:29:27,451 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1152 transitions. [2023-11-17 16:29:27,456 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 230.4) internal successors, (1152), 5 states have internal predecessors, (1152), 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 16:29:27,463 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 488.0) internal successors, (2928), 6 states have internal predecessors, (2928), 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 16:29:27,464 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 488.0) internal successors, (2928), 6 states have internal predecessors, (2928), 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 16:29:27,465 INFO L175 Difference]: Start difference. First operand has 44 places, 36 transitions, 96 flow. Second operand 5 states and 1152 transitions. [2023-11-17 16:29:27,466 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 86 transitions, 387 flow [2023-11-17 16:29:27,470 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 86 transitions, 354 flow, removed 0 selfloop flow, removed 9 redundant places. [2023-11-17 16:29:27,471 INFO L231 Difference]: Finished difference. Result has 42 places, 39 transitions, 108 flow [2023-11-17 16:29:27,473 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=488, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=108, PETRI_PLACES=42, PETRI_TRANSITIONS=39} [2023-11-17 16:29:27,475 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, -2 predicate places. [2023-11-17 16:29:27,475 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 39 transitions, 108 flow [2023-11-17 16:29:27,476 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 219.5) internal successors, (878), 4 states have internal predecessors, (878), 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 16:29:27,476 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 16:29:27,476 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 16:29:27,477 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-17 16:29:27,477 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-11-17 16:29:27,477 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 16:29:27,477 INFO L85 PathProgramCache]: Analyzing trace with hash -1941538840, now seen corresponding path program 2 times [2023-11-17 16:29:27,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 16:29:27,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395063427] [2023-11-17 16:29:27,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 16:29:27,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 16:29:27,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 16:29:27,582 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 16:29:27,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 16:29:27,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [395063427] [2023-11-17 16:29:27,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [395063427] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 16:29:27,583 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 16:29:27,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-17 16:29:27,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110865520] [2023-11-17 16:29:27,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 16:29:27,584 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-17 16:29:27,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 16:29:27,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-17 16:29:27,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-17 16:29:27,586 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 213 out of 488 [2023-11-17 16:29:27,587 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 39 transitions, 108 flow. Second operand has 4 states, 4 states have (on average 219.5) internal successors, (878), 4 states have internal predecessors, (878), 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 16:29:27,587 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 16:29:27,587 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 213 of 488 [2023-11-17 16:29:27,587 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 16:29:27,896 INFO L124 PetriNetUnfolderBase]: 1935/2752 cut-off events. [2023-11-17 16:29:27,896 INFO L125 PetriNetUnfolderBase]: For 918/918 co-relation queries the response was YES. [2023-11-17 16:29:27,899 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6346 conditions, 2752 events. 1935/2752 cut-off events. For 918/918 co-relation queries the response was YES. Maximal size of possible extension queue 144. Compared 11557 event pairs, 199 based on Foata normal form. 0/2532 useless extension candidates. Maximal degree in co-relation 3646. Up to 1139 conditions per place. [2023-11-17 16:29:27,910 INFO L140 encePairwiseOnDemand]: 483/488 looper letters, 75 selfloop transitions, 7 changer transitions 0/83 dead transitions. [2023-11-17 16:29:27,910 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 83 transitions, 389 flow [2023-11-17 16:29:27,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-17 16:29:27,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-17 16:29:27,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1145 transitions. [2023-11-17 16:29:27,913 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4692622950819672 [2023-11-17 16:29:27,914 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1145 transitions. [2023-11-17 16:29:27,914 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1145 transitions. [2023-11-17 16:29:27,914 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 16:29:27,914 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1145 transitions. [2023-11-17 16:29:27,917 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 229.0) internal successors, (1145), 5 states have internal predecessors, (1145), 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 16:29:27,920 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 488.0) internal successors, (2928), 6 states have internal predecessors, (2928), 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 16:29:27,922 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 488.0) internal successors, (2928), 6 states have internal predecessors, (2928), 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 16:29:27,922 INFO L175 Difference]: Start difference. First operand has 42 places, 39 transitions, 108 flow. Second operand 5 states and 1145 transitions. [2023-11-17 16:29:27,922 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 83 transitions, 389 flow [2023-11-17 16:29:27,926 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 83 transitions, 384 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-17 16:29:27,927 INFO L231 Difference]: Finished difference. Result has 48 places, 43 transitions, 149 flow [2023-11-17 16:29:27,927 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=488, PETRI_DIFFERENCE_MINUEND_FLOW=105, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=149, PETRI_PLACES=48, PETRI_TRANSITIONS=43} [2023-11-17 16:29:27,928 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 4 predicate places. [2023-11-17 16:29:27,928 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 43 transitions, 149 flow [2023-11-17 16:29:27,929 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 219.5) internal successors, (878), 4 states have internal predecessors, (878), 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 16:29:27,929 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 16:29:27,929 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 16:29:27,930 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-17 16:29:27,930 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-11-17 16:29:27,930 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 16:29:27,930 INFO L85 PathProgramCache]: Analyzing trace with hash -1356592870, now seen corresponding path program 3 times [2023-11-17 16:29:27,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 16:29:27,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170465572] [2023-11-17 16:29:27,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 16:29:27,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 16:29:27,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 16:29:28,148 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 16:29:28,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 16:29:28,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170465572] [2023-11-17 16:29:28,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1170465572] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 16:29:28,148 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 16:29:28,149 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-17 16:29:28,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318177670] [2023-11-17 16:29:28,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 16:29:28,149 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-17 16:29:28,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 16:29:28,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-17 16:29:28,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-17 16:29:28,152 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 206 out of 488 [2023-11-17 16:29:28,153 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 43 transitions, 149 flow. Second operand has 6 states, 6 states have (on average 210.33333333333334) internal successors, (1262), 6 states have internal predecessors, (1262), 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 16:29:28,153 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 16:29:28,153 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 206 of 488 [2023-11-17 16:29:28,153 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 16:29:28,838 INFO L124 PetriNetUnfolderBase]: 4673/6496 cut-off events. [2023-11-17 16:29:28,838 INFO L125 PetriNetUnfolderBase]: For 3423/3423 co-relation queries the response was YES. [2023-11-17 16:29:28,848 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16042 conditions, 6496 events. 4673/6496 cut-off events. For 3423/3423 co-relation queries the response was YES. Maximal size of possible extension queue 262. Compared 29730 event pairs, 443 based on Foata normal form. 110/6232 useless extension candidates. Maximal degree in co-relation 9185. Up to 1928 conditions per place. [2023-11-17 16:29:28,864 INFO L140 encePairwiseOnDemand]: 481/488 looper letters, 99 selfloop transitions, 9 changer transitions 16/124 dead transitions. [2023-11-17 16:29:28,864 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 124 transitions, 637 flow [2023-11-17 16:29:28,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-17 16:29:28,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-11-17 16:29:28,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1762 transitions. [2023-11-17 16:29:28,869 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45133196721311475 [2023-11-17 16:29:28,869 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1762 transitions. [2023-11-17 16:29:28,869 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1762 transitions. [2023-11-17 16:29:28,870 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 16:29:28,870 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1762 transitions. [2023-11-17 16:29:28,874 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 220.25) internal successors, (1762), 8 states have internal predecessors, (1762), 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 16:29:28,879 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 488.0) internal successors, (4392), 9 states have internal predecessors, (4392), 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 16:29:28,881 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 488.0) internal successors, (4392), 9 states have internal predecessors, (4392), 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 16:29:28,881 INFO L175 Difference]: Start difference. First operand has 48 places, 43 transitions, 149 flow. Second operand 8 states and 1762 transitions. [2023-11-17 16:29:28,881 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 124 transitions, 637 flow [2023-11-17 16:29:28,887 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 124 transitions, 630 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-17 16:29:28,888 INFO L231 Difference]: Finished difference. Result has 58 places, 43 transitions, 180 flow [2023-11-17 16:29:28,889 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=488, PETRI_DIFFERENCE_MINUEND_FLOW=145, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=180, PETRI_PLACES=58, PETRI_TRANSITIONS=43} [2023-11-17 16:29:28,889 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 14 predicate places. [2023-11-17 16:29:28,889 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 43 transitions, 180 flow [2023-11-17 16:29:28,890 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 210.33333333333334) internal successors, (1262), 6 states have internal predecessors, (1262), 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 16:29:28,890 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 16:29:28,891 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 16:29:28,891 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-17 16:29:28,891 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-11-17 16:29:28,891 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 16:29:28,891 INFO L85 PathProgramCache]: Analyzing trace with hash 843415496, now seen corresponding path program 1 times [2023-11-17 16:29:28,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 16:29:28,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327640183] [2023-11-17 16:29:28,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 16:29:28,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 16:29:28,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 16:29:28,960 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 16:29:28,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 16:29:28,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1327640183] [2023-11-17 16:29:28,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1327640183] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 16:29:28,961 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 16:29:28,961 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-17 16:29:28,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133931234] [2023-11-17 16:29:28,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 16:29:28,962 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-17 16:29:28,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 16:29:28,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-17 16:29:28,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-17 16:29:28,963 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 220 out of 488 [2023-11-17 16:29:28,964 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 43 transitions, 180 flow. Second operand has 3 states, 3 states have (on average 229.0) internal successors, (687), 3 states have internal predecessors, (687), 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 16:29:28,964 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 16:29:28,964 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 220 of 488 [2023-11-17 16:29:28,964 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 16:29:29,230 INFO L124 PetriNetUnfolderBase]: 1489/2364 cut-off events. [2023-11-17 16:29:29,231 INFO L125 PetriNetUnfolderBase]: For 2664/2664 co-relation queries the response was YES. [2023-11-17 16:29:29,237 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6208 conditions, 2364 events. 1489/2364 cut-off events. For 2664/2664 co-relation queries the response was YES. Maximal size of possible extension queue 127. Compared 10970 event pairs, 437 based on Foata normal form. 54/2257 useless extension candidates. Maximal degree in co-relation 6195. Up to 1611 conditions per place. [2023-11-17 16:29:29,247 INFO L140 encePairwiseOnDemand]: 485/488 looper letters, 45 selfloop transitions, 2 changer transitions 0/53 dead transitions. [2023-11-17 16:29:29,247 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 53 transitions, 275 flow [2023-11-17 16:29:29,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-17 16:29:29,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-17 16:29:29,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 708 transitions. [2023-11-17 16:29:29,249 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48360655737704916 [2023-11-17 16:29:29,250 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 708 transitions. [2023-11-17 16:29:29,250 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 708 transitions. [2023-11-17 16:29:29,250 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 16:29:29,250 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 708 transitions. [2023-11-17 16:29:29,252 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 236.0) internal successors, (708), 3 states have internal predecessors, (708), 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 16:29:29,254 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 488.0) internal successors, (1952), 4 states have internal predecessors, (1952), 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 16:29:29,255 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 488.0) internal successors, (1952), 4 states have internal predecessors, (1952), 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 16:29:29,255 INFO L175 Difference]: Start difference. First operand has 58 places, 43 transitions, 180 flow. Second operand 3 states and 708 transitions. [2023-11-17 16:29:29,255 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 53 transitions, 275 flow [2023-11-17 16:29:29,261 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 53 transitions, 244 flow, removed 2 selfloop flow, removed 12 redundant places. [2023-11-17 16:29:29,262 INFO L231 Difference]: Finished difference. Result has 48 places, 40 transitions, 130 flow [2023-11-17 16:29:29,262 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=488, PETRI_DIFFERENCE_MINUEND_FLOW=118, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=130, PETRI_PLACES=48, PETRI_TRANSITIONS=40} [2023-11-17 16:29:29,263 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 4 predicate places. [2023-11-17 16:29:29,263 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 40 transitions, 130 flow [2023-11-17 16:29:29,263 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 229.0) internal successors, (687), 3 states have internal predecessors, (687), 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 16:29:29,263 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 16:29:29,264 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 16:29:29,264 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-17 16:29:29,264 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-11-17 16:29:29,264 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 16:29:29,264 INFO L85 PathProgramCache]: Analyzing trace with hash -2064022664, now seen corresponding path program 1 times [2023-11-17 16:29:29,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 16:29:29,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316889013] [2023-11-17 16:29:29,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 16:29:29,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 16:29:29,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 16:29:29,332 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-17 16:29:29,332 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 16:29:29,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316889013] [2023-11-17 16:29:29,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1316889013] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 16:29:29,332 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 16:29:29,332 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-17 16:29:29,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642055067] [2023-11-17 16:29:29,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 16:29:29,333 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-17 16:29:29,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 16:29:29,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-17 16:29:29,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-17 16:29:29,335 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 220 out of 488 [2023-11-17 16:29:29,335 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 40 transitions, 130 flow. Second operand has 3 states, 3 states have (on average 229.66666666666666) internal successors, (689), 3 states have internal predecessors, (689), 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 16:29:29,335 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 16:29:29,336 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 220 of 488 [2023-11-17 16:29:29,336 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 16:29:29,555 INFO L124 PetriNetUnfolderBase]: 1309/2062 cut-off events. [2023-11-17 16:29:29,555 INFO L125 PetriNetUnfolderBase]: For 1293/1294 co-relation queries the response was YES. [2023-11-17 16:29:29,560 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5212 conditions, 2062 events. 1309/2062 cut-off events. For 1293/1294 co-relation queries the response was YES. Maximal size of possible extension queue 116. Compared 9129 event pairs, 606 based on Foata normal form. 44/1896 useless extension candidates. Maximal degree in co-relation 5202. Up to 1593 conditions per place. [2023-11-17 16:29:29,568 INFO L140 encePairwiseOnDemand]: 485/488 looper letters, 43 selfloop transitions, 2 changer transitions 3/54 dead transitions. [2023-11-17 16:29:29,568 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 54 transitions, 262 flow [2023-11-17 16:29:29,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-17 16:29:29,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-17 16:29:29,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 708 transitions. [2023-11-17 16:29:29,570 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48360655737704916 [2023-11-17 16:29:29,570 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 708 transitions. [2023-11-17 16:29:29,570 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 708 transitions. [2023-11-17 16:29:29,571 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 16:29:29,571 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 708 transitions. [2023-11-17 16:29:29,572 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 236.0) internal successors, (708), 3 states have internal predecessors, (708), 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 16:29:29,574 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 488.0) internal successors, (1952), 4 states have internal predecessors, (1952), 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 16:29:29,575 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 488.0) internal successors, (1952), 4 states have internal predecessors, (1952), 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 16:29:29,575 INFO L175 Difference]: Start difference. First operand has 48 places, 40 transitions, 130 flow. Second operand 3 states and 708 transitions. [2023-11-17 16:29:29,575 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 54 transitions, 262 flow [2023-11-17 16:29:29,577 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 54 transitions, 260 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-17 16:29:29,577 INFO L231 Difference]: Finished difference. Result has 50 places, 41 transitions, 140 flow [2023-11-17 16:29:29,578 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=488, PETRI_DIFFERENCE_MINUEND_FLOW=128, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=140, PETRI_PLACES=50, PETRI_TRANSITIONS=41} [2023-11-17 16:29:29,578 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 6 predicate places. [2023-11-17 16:29:29,578 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 41 transitions, 140 flow [2023-11-17 16:29:29,579 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 229.66666666666666) internal successors, (689), 3 states have internal predecessors, (689), 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 16:29:29,579 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 16:29:29,579 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 16:29:29,579 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-17 16:29:29,579 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-11-17 16:29:29,580 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 16:29:29,580 INFO L85 PathProgramCache]: Analyzing trace with hash -2102531579, now seen corresponding path program 1 times [2023-11-17 16:29:29,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 16:29:29,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41309403] [2023-11-17 16:29:29,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 16:29:29,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 16:29:29,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 16:29:29,709 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-17 16:29:29,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 16:29:29,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [41309403] [2023-11-17 16:29:29,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [41309403] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 16:29:29,710 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 16:29:29,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-17 16:29:29,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640294929] [2023-11-17 16:29:29,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 16:29:29,711 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-17 16:29:29,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 16:29:29,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-17 16:29:29,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-17 16:29:29,713 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 195 out of 488 [2023-11-17 16:29:29,713 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 41 transitions, 140 flow. Second operand has 4 states, 4 states have (on average 202.75) internal successors, (811), 4 states have internal predecessors, (811), 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 16:29:29,714 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 16:29:29,714 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 195 of 488 [2023-11-17 16:29:29,714 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 16:29:29,998 INFO L124 PetriNetUnfolderBase]: 1448/2332 cut-off events. [2023-11-17 16:29:29,998 INFO L125 PetriNetUnfolderBase]: For 1721/1721 co-relation queries the response was YES. [2023-11-17 16:29:30,004 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6135 conditions, 2332 events. 1448/2332 cut-off events. For 1721/1721 co-relation queries the response was YES. Maximal size of possible extension queue 110. Compared 10333 event pairs, 1097 based on Foata normal form. 22/2152 useless extension candidates. Maximal degree in co-relation 6124. Up to 1820 conditions per place. [2023-11-17 16:29:30,012 INFO L140 encePairwiseOnDemand]: 484/488 looper letters, 34 selfloop transitions, 2 changer transitions 18/60 dead transitions. [2023-11-17 16:29:30,012 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 60 transitions, 295 flow [2023-11-17 16:29:30,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-17 16:29:30,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-17 16:29:30,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 833 transitions. [2023-11-17 16:29:30,015 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42674180327868855 [2023-11-17 16:29:30,015 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 833 transitions. [2023-11-17 16:29:30,015 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 833 transitions. [2023-11-17 16:29:30,015 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 16:29:30,015 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 833 transitions. [2023-11-17 16:29:30,017 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 208.25) internal successors, (833), 4 states have internal predecessors, (833), 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 16:29:30,020 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 488.0) internal successors, (2440), 5 states have internal predecessors, (2440), 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 16:29:30,020 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 488.0) internal successors, (2440), 5 states have internal predecessors, (2440), 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 16:29:30,020 INFO L175 Difference]: Start difference. First operand has 50 places, 41 transitions, 140 flow. Second operand 4 states and 833 transitions. [2023-11-17 16:29:30,020 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 60 transitions, 295 flow [2023-11-17 16:29:30,023 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 60 transitions, 293 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-17 16:29:30,024 INFO L231 Difference]: Finished difference. Result has 54 places, 42 transitions, 152 flow [2023-11-17 16:29:30,024 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=488, PETRI_DIFFERENCE_MINUEND_FLOW=138, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=152, PETRI_PLACES=54, PETRI_TRANSITIONS=42} [2023-11-17 16:29:30,025 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 10 predicate places. [2023-11-17 16:29:30,025 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 42 transitions, 152 flow [2023-11-17 16:29:30,025 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 202.75) internal successors, (811), 4 states have internal predecessors, (811), 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 16:29:30,025 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 16:29:30,026 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 16:29:30,026 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-17 16:29:30,026 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-11-17 16:29:30,026 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 16:29:30,026 INFO L85 PathProgramCache]: Analyzing trace with hash 45503135, now seen corresponding path program 1 times [2023-11-17 16:29:30,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 16:29:30,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645547118] [2023-11-17 16:29:30,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 16:29:30,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 16:29:30,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 16:29:30,160 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-17 16:29:30,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 16:29:30,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [645547118] [2023-11-17 16:29:30,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [645547118] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 16:29:30,160 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 16:29:30,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-17 16:29:30,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117401079] [2023-11-17 16:29:30,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 16:29:30,161 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-17 16:29:30,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 16:29:30,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-17 16:29:30,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-17 16:29:30,162 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 195 out of 488 [2023-11-17 16:29:30,163 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 42 transitions, 152 flow. Second operand has 4 states, 4 states have (on average 203.0) internal successors, (812), 4 states have internal predecessors, (812), 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 16:29:30,163 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 16:29:30,163 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 195 of 488 [2023-11-17 16:29:30,164 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 16:29:30,478 INFO L124 PetriNetUnfolderBase]: 1657/2649 cut-off events. [2023-11-17 16:29:30,478 INFO L125 PetriNetUnfolderBase]: For 2001/2001 co-relation queries the response was YES. [2023-11-17 16:29:30,484 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6950 conditions, 2649 events. 1657/2649 cut-off events. For 2001/2001 co-relation queries the response was YES. Maximal size of possible extension queue 110. Compared 11958 event pairs, 1275 based on Foata normal form. 34/2450 useless extension candidates. Maximal degree in co-relation 6937. Up to 1821 conditions per place. [2023-11-17 16:29:30,490 INFO L140 encePairwiseOnDemand]: 484/488 looper letters, 35 selfloop transitions, 2 changer transitions 19/62 dead transitions. [2023-11-17 16:29:30,490 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 62 transitions, 321 flow [2023-11-17 16:29:30,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-17 16:29:30,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-17 16:29:30,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 833 transitions. [2023-11-17 16:29:30,493 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42674180327868855 [2023-11-17 16:29:30,493 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 833 transitions. [2023-11-17 16:29:30,494 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 833 transitions. [2023-11-17 16:29:30,494 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 16:29:30,494 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 833 transitions. [2023-11-17 16:29:30,496 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 208.25) internal successors, (833), 4 states have internal predecessors, (833), 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 16:29:30,498 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 488.0) internal successors, (2440), 5 states have internal predecessors, (2440), 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 16:29:30,499 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 488.0) internal successors, (2440), 5 states have internal predecessors, (2440), 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 16:29:30,499 INFO L175 Difference]: Start difference. First operand has 54 places, 42 transitions, 152 flow. Second operand 4 states and 833 transitions. [2023-11-17 16:29:30,499 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 62 transitions, 321 flow [2023-11-17 16:29:30,503 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 62 transitions, 313 flow, removed 3 selfloop flow, removed 2 redundant places. [2023-11-17 16:29:30,505 INFO L231 Difference]: Finished difference. Result has 56 places, 43 transitions, 160 flow [2023-11-17 16:29:30,505 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=488, PETRI_DIFFERENCE_MINUEND_FLOW=146, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=160, PETRI_PLACES=56, PETRI_TRANSITIONS=43} [2023-11-17 16:29:30,506 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 12 predicate places. [2023-11-17 16:29:30,510 INFO L495 AbstractCegarLoop]: Abstraction has has 56 places, 43 transitions, 160 flow [2023-11-17 16:29:30,511 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 203.0) internal successors, (812), 4 states have internal predecessors, (812), 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 16:29:30,512 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 16:29:30,512 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 16:29:30,513 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-17 16:29:30,513 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-11-17 16:29:30,513 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 16:29:30,513 INFO L85 PathProgramCache]: Analyzing trace with hash -1500842071, now seen corresponding path program 1 times [2023-11-17 16:29:30,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 16:29:30,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174231537] [2023-11-17 16:29:30,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 16:29:30,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 16:29:30,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 16:29:32,436 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 16:29:32,436 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 16:29:32,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174231537] [2023-11-17 16:29:32,436 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1174231537] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-17 16:29:32,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1545181322] [2023-11-17 16:29:32,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 16:29:32,437 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-17 16:29:32,437 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-17 16:29:32,440 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 16:29:32,441 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 16:29:32,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 16:29:32,587 INFO L262 TraceCheckSpWp]: Trace formula consists of 341 conjuncts, 62 conjunts are in the unsatisfiable core [2023-11-17 16:29:32,598 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-17 16:29:32,652 WARN L561 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2023-11-17 16:29:32,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-17 16:29:32,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-17 16:29:32,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-17 16:29:32,705 INFO L349 Elim1Store]: treesize reduction 82, result has 16.3 percent of original size [2023-11-17 16:29:32,706 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 5 case distinctions, treesize of input 82 treesize of output 81 [2023-11-17 16:29:32,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-17 16:29:32,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-17 16:29:32,741 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-17 16:29:32,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-17 16:29:32,776 INFO L349 Elim1Store]: treesize reduction 79, result has 12.2 percent of original size [2023-11-17 16:29:32,776 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 40 treesize of output 43 [2023-11-17 16:29:32,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-17 16:29:32,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-17 16:29:32,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-17 16:29:32,860 INFO L349 Elim1Store]: treesize reduction 85, result has 15.8 percent of original size [2023-11-17 16:29:32,860 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 5 case distinctions, treesize of input 82 treesize of output 81 [2023-11-17 16:29:32,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-17 16:29:32,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-17 16:29:32,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-17 16:29:32,963 INFO L349 Elim1Store]: treesize reduction 101, result has 13.7 percent of original size [2023-11-17 16:29:32,963 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 5 case distinctions, treesize of input 51 treesize of output 47 [2023-11-17 16:29:33,140 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 1 [2023-11-17 16:29:33,262 INFO L349 Elim1Store]: treesize reduction 24, result has 41.5 percent of original size [2023-11-17 16:29:33,265 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 26 treesize of output 32 [2023-11-17 16:29:33,398 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-11-17 16:29:33,482 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-11-17 16:29:33,572 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-11-17 16:29:33,769 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-11-17 16:29:33,969 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 15 [2023-11-17 16:29:34,208 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-17 16:29:34,209 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 26 [2023-11-17 16:29:34,350 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 16:29:34,350 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-17 16:29:36,018 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-17 16:29:36,018 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 152 treesize of output 116 [2023-11-17 16:29:36,169 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-17 16:29:36,171 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 7122053 treesize of output 6990929 [2023-11-17 16:29:39,832 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-17 16:29:39,833 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 28213 treesize of output 25125 [2023-11-17 16:29:40,273 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-17 16:29:40,274 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 25045 treesize of output 24333 [2023-11-17 16:29:40,736 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-17 16:29:40,737 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 24253 treesize of output 22749 [2023-11-17 16:29:41,237 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-17 16:29:41,238 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 22449 treesize of output 16249 [2023-11-17 16:29:41,739 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-17 16:29:41,740 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 16194 treesize of output 15878 [2023-11-17 16:32:08,174 WARN L249 Executor]: External (MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) stderr output: (error "out of memory") [2023-11-17 16:32:08,175 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 101 [2023-11-17 16:32:08,178 WARN L320 FreeRefinementEngine]: Global settings require throwing the following exception [2023-11-17 16:32:08,184 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-11-17 16:32:08,378 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-17 16:32:08,379 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:262) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseSuccess(Executor.java:277) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.push(Scriptor.java:133) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.arrays.DiffWrapperScript.push(DiffWrapperScript.java:90) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.push(WrapperScript.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.HistoryRecordingScript.push(HistoryRecordingScript.java:107) at de.uni_freiburg.informatik.ultimate.logic.Util.checkSat(Util.java:48) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.checkRedundancy(SimplifyDDA2.java:268) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.convertForPreprocessedInputTerms(SimplifyDDA2.java:410) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.convert(SimplifyDDA2.java:394) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.convert(SimplifyDDA2.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:88) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:84) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.simplify(SimplifyDDA2.java:500) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplify(SmtUtils.java:252) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplifyWithStatistics(SmtUtils.java:324) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify(QuantifierPusher.java:731) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:133) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:209) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:100) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:84) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:297) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushUtilsForSubsetPush.pushMinionEliminatees(QuantifierPushUtilsForSubsetPush.java:255) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushUtilsForSubsetPush.sequentialSubsetPush(QuantifierPushUtilsForSubsetPush.java:151) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:338) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:189) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:209) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:100) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:84) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:297) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:283) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.PartialQuantifierElimination.eliminate(PartialQuantifierElimination.java:51) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:238) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:420) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeBackwardSequence(IterativePredicateTransformer.java:399) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeWeakestPreconditionSequence(IterativePredicateTransformer.java:271) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:341) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:184) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:225) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:173) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1518) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:701) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:258) ... 69 more [2023-11-17 16:32:08,382 INFO L158 Benchmark]: Toolchain (without parser) took 171123.67ms. Allocated memory was 202.4MB in the beginning and 1.1GB in the end (delta: 903.9MB). Free memory was 151.3MB in the beginning and 435.1MB in the end (delta: -283.9MB). Peak memory consumption was 676.4MB. Max. memory is 8.0GB. [2023-11-17 16:32:08,382 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 202.4MB. Free memory is still 153.2MB. There was no memory consumed. Max. memory is 8.0GB. [2023-11-17 16:32:08,383 INFO L158 Benchmark]: CACSL2BoogieTranslator took 219.68ms. Allocated memory is still 202.4MB. Free memory was 151.0MB in the beginning and 138.6MB in the end (delta: 12.5MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2023-11-17 16:32:08,383 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.87ms. Allocated memory is still 202.4MB. Free memory was 138.4MB in the beginning and 135.8MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-11-17 16:32:08,383 INFO L158 Benchmark]: Boogie Preprocessor took 48.26ms. Allocated memory is still 202.4MB. Free memory was 135.8MB in the beginning and 133.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-11-17 16:32:08,383 INFO L158 Benchmark]: RCFGBuilder took 718.52ms. Allocated memory was 202.4MB in the beginning and 255.9MB in the end (delta: 53.5MB). Free memory was 133.7MB in the beginning and 212.3MB in the end (delta: -78.6MB). Peak memory consumption was 29.4MB. Max. memory is 8.0GB. [2023-11-17 16:32:08,383 INFO L158 Benchmark]: TraceAbstraction took 170091.68ms. Allocated memory was 255.9MB in the beginning and 1.1GB in the end (delta: 850.4MB). Free memory was 211.8MB in the beginning and 435.1MB in the end (delta: -223.3MB). Peak memory consumption was 682.6MB. Max. memory is 8.0GB. [2023-11-17 16:32:08,385 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 202.4MB. Free memory is still 153.2MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 219.68ms. Allocated memory is still 202.4MB. Free memory was 151.0MB in the beginning and 138.6MB in the end (delta: 12.5MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 38.87ms. Allocated memory is still 202.4MB. Free memory was 138.4MB in the beginning and 135.8MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 48.26ms. Allocated memory is still 202.4MB. Free memory was 135.8MB in the beginning and 133.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 718.52ms. Allocated memory was 202.4MB in the beginning and 255.9MB in the end (delta: 53.5MB). Free memory was 133.7MB in the beginning and 212.3MB in the end (delta: -78.6MB). Peak memory consumption was 29.4MB. Max. memory is 8.0GB. * TraceAbstraction took 170091.68ms. Allocated memory was 255.9MB in the beginning and 1.1GB in the end (delta: 850.4MB). Free memory was 211.8MB in the beginning and 435.1MB in the end (delta: -223.3MB). Peak memory consumption was 682.6MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7.9s, 227 PlacesBefore, 44 PlacesAfterwards, 232 TransitionsBefore, 36 TransitionsAfterwards, 2746 CoEnabledTransitionPairs, 7 FixpointIterations, 147 TrivialSequentialCompositions, 37 ConcurrentSequentialCompositions, 33 TrivialYvCompositions, 9 ConcurrentYvCompositions, 13 ChoiceCompositions, 239 TotalNumberOfCompositions, 4566 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3567, independent: 3463, independent conditional: 0, independent unconditional: 3463, dependent: 104, dependent conditional: 0, dependent unconditional: 104, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1947, independent: 1905, independent conditional: 0, independent unconditional: 1905, dependent: 42, dependent conditional: 0, dependent unconditional: 42, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1947, independent: 1902, independent conditional: 0, independent unconditional: 1902, dependent: 45, dependent conditional: 0, dependent unconditional: 45, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 45, independent: 3, independent conditional: 0, independent unconditional: 3, dependent: 42, dependent conditional: 0, dependent unconditional: 42, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 124, independent: 9, independent conditional: 0, independent unconditional: 9, dependent: 115, dependent conditional: 0, dependent unconditional: 115, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 3567, independent: 1558, independent conditional: 0, independent unconditional: 1558, dependent: 62, dependent conditional: 0, dependent unconditional: 62, unknown: 1947, unknown conditional: 0, unknown unconditional: 1947] , Statistics on independence cache: Total cache size (in pairs): 217, Positive cache size: 203, Positive conditional cache size: 0, Positive unconditional cache size: 203, Negative cache size: 14, Negative conditional cache size: 0, Negative unconditional cache size: 14, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - ExceptionOrErrorResult: SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") : de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:262) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...