/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/bench-exp3x3-opt.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-wip.dk.datarace-free-lbe-02cf818-m [2023-11-17 15:44:59,486 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-17 15:44:59,547 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-SemanticLbe.epf [2023-11-17 15:44:59,581 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-17 15:44:59,582 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-17 15:44:59,582 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-17 15:44:59,582 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-17 15:44:59,583 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-17 15:44:59,583 INFO L153 SettingsManager]: * Use SBE=true [2023-11-17 15:44:59,586 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-17 15:44:59,587 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-17 15:44:59,587 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-17 15:44:59,587 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-17 15:44:59,588 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-17 15:44:59,588 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-17 15:44:59,588 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-17 15:44:59,589 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-17 15:44:59,589 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-17 15:44:59,589 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-17 15:44:59,589 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-17 15:44:59,589 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-17 15:44:59,590 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-17 15:44:59,590 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-17 15:44:59,590 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-11-17 15:44:59,590 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-17 15:44:59,590 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-17 15:44:59,591 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-17 15:44:59,591 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-17 15:44:59,591 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-17 15:44:59,591 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-17 15:44:59,592 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-17 15:44:59,592 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-17 15:44:59,592 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-11-17 15:44:59,750 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-17 15:44:59,768 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-17 15:44:59,770 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-17 15:44:59,771 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-17 15:44:59,771 INFO L274 PluginConnector]: CDTParser initialized [2023-11-17 15:44:59,772 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/bench-exp3x3-opt.wvr.c [2023-11-17 15:45:00,731 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-17 15:45:00,915 INFO L384 CDTParser]: Found 1 translation units. [2023-11-17 15:45:00,916 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/bench-exp3x3-opt.wvr.c [2023-11-17 15:45:00,921 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/24f40929b/ecd8f0046b05469bb778a852f943c5f6/FLAGfde090d86 [2023-11-17 15:45:00,935 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/24f40929b/ecd8f0046b05469bb778a852f943c5f6 [2023-11-17 15:45:00,937 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-17 15:45:00,938 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-11-17 15:45:00,940 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-17 15:45:00,940 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-17 15:45:00,944 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-17 15:45:00,944 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 03:45:00" (1/1) ... [2023-11-17 15:45:00,945 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2017a02f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:45:00, skipping insertion in model container [2023-11-17 15:45:00,945 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 03:45:00" (1/1) ... [2023-11-17 15:45:00,966 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-17 15:45:01,089 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/bench-exp3x3-opt.wvr.c[2904,2917] [2023-11-17 15:45:01,092 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-17 15:45:01,099 INFO L202 MainTranslator]: Completed pre-run [2023-11-17 15:45:01,114 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/bench-exp3x3-opt.wvr.c[2904,2917] [2023-11-17 15:45:01,115 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-17 15:45:01,125 INFO L206 MainTranslator]: Completed translation [2023-11-17 15:45:01,125 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:45:01 WrapperNode [2023-11-17 15:45:01,125 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-17 15:45:01,126 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-17 15:45:01,126 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-17 15:45:01,126 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-17 15:45:01,131 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:45:01" (1/1) ... [2023-11-17 15:45:01,137 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:45:01" (1/1) ... [2023-11-17 15:45:01,158 INFO L138 Inliner]: procedures = 25, calls = 44, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 131 [2023-11-17 15:45:01,159 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-17 15:45:01,160 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-17 15:45:01,160 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-17 15:45:01,160 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-17 15:45:01,170 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:45:01" (1/1) ... [2023-11-17 15:45:01,170 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:45:01" (1/1) ... [2023-11-17 15:45:01,172 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:45:01" (1/1) ... [2023-11-17 15:45:01,173 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:45:01" (1/1) ... [2023-11-17 15:45:01,177 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:45:01" (1/1) ... [2023-11-17 15:45:01,179 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:45:01" (1/1) ... [2023-11-17 15:45:01,181 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:45:01" (1/1) ... [2023-11-17 15:45:01,182 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:45:01" (1/1) ... [2023-11-17 15:45:01,183 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-17 15:45:01,184 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-17 15:45:01,184 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-17 15:45:01,184 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-17 15:45:01,185 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:45:01" (1/1) ... [2023-11-17 15:45:01,188 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-17 15:45:01,198 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-17 15:45:01,209 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-17 15:45:01,220 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-17 15:45:01,236 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-17 15:45:01,236 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-17 15:45:01,236 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-17 15:45:01,236 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-17 15:45:01,236 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-17 15:45:01,236 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-17 15:45:01,236 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-17 15:45:01,236 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-17 15:45:01,237 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-17 15:45:01,237 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-17 15:45:01,237 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2023-11-17 15:45:01,237 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2023-11-17 15:45:01,237 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-17 15:45:01,237 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2023-11-17 15:45:01,237 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2023-11-17 15:45:01,237 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2023-11-17 15:45:01,237 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2023-11-17 15:45:01,237 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-17 15:45:01,237 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-17 15:45:01,237 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-17 15:45:01,238 WARN L211 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-17 15:45:01,348 INFO L239 CfgBuilder]: Building ICFG [2023-11-17 15:45:01,350 INFO L265 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-17 15:45:01,621 INFO L280 CfgBuilder]: Performing block encoding [2023-11-17 15:45:01,630 INFO L302 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-17 15:45:01,630 INFO L307 CfgBuilder]: Removed 6 assume(true) statements. [2023-11-17 15:45:01,631 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 03:45:01 BoogieIcfgContainer [2023-11-17 15:45:01,631 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-17 15:45:01,633 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-17 15:45:01,633 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-17 15:45:01,635 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-17 15:45:01,635 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 03:45:00" (1/3) ... [2023-11-17 15:45:01,636 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2950f6bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 03:45:01, skipping insertion in model container [2023-11-17 15:45:01,636 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:45:01" (2/3) ... [2023-11-17 15:45:01,636 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2950f6bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 03:45:01, skipping insertion in model container [2023-11-17 15:45:01,636 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 03:45:01" (3/3) ... [2023-11-17 15:45:01,637 INFO L112 eAbstractionObserver]: Analyzing ICFG bench-exp3x3-opt.wvr.c [2023-11-17 15:45:01,649 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-17 15:45:01,649 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-17 15:45:01,650 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-17 15:45:01,739 INFO L144 ThreadInstanceAdder]: Constructed 6 joinOtherThreadTransitions. [2023-11-17 15:45:01,769 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 183 places, 178 transitions, 398 flow [2023-11-17 15:45:01,821 INFO L124 PetriNetUnfolderBase]: 14/172 cut-off events. [2023-11-17 15:45:01,822 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-11-17 15:45:01,828 INFO L83 FinitePrefix]: Finished finitePrefix Result has 197 conditions, 172 events. 14/172 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 82 event pairs, 0 based on Foata normal form. 0/157 useless extension candidates. Maximal degree in co-relation 128. Up to 2 conditions per place. [2023-11-17 15:45:01,828 INFO L82 GeneralOperation]: Start removeDead. Operand has 183 places, 178 transitions, 398 flow [2023-11-17 15:45:01,832 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 160 places, 155 transitions, 346 flow [2023-11-17 15:45:01,838 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-11-17 15:45:01,846 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 160 places, 155 transitions, 346 flow [2023-11-17 15:45:01,848 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 160 places, 155 transitions, 346 flow [2023-11-17 15:45:01,848 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 160 places, 155 transitions, 346 flow [2023-11-17 15:45:01,880 INFO L124 PetriNetUnfolderBase]: 14/155 cut-off events. [2023-11-17 15:45:01,880 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-11-17 15:45:01,882 INFO L83 FinitePrefix]: Finished finitePrefix Result has 180 conditions, 155 events. 14/155 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 83 event pairs, 0 based on Foata normal form. 0/141 useless extension candidates. Maximal degree in co-relation 128. Up to 2 conditions per place. [2023-11-17 15:45:01,884 INFO L119 LiptonReduction]: Number of co-enabled transitions 3612 [2023-11-17 15:45:05,398 INFO L134 LiptonReduction]: Checked pairs total: 4231 [2023-11-17 15:45:05,398 INFO L136 LiptonReduction]: Total number of compositions: 126 [2023-11-17 15:45:05,408 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-17 15:45:05,412 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;@1291de28, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-17 15:45:05,413 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2023-11-17 15:45:05,420 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-17 15:45:05,420 INFO L124 PetriNetUnfolderBase]: 6/42 cut-off events. [2023-11-17 15:45:05,420 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-11-17 15:45:05,420 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 15:45:05,421 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, 1] [2023-11-17 15:45:05,421 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 4 more)] === [2023-11-17 15:45:05,428 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 15:45:05,428 INFO L85 PathProgramCache]: Analyzing trace with hash -913393960, now seen corresponding path program 1 times [2023-11-17 15:45:05,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 15:45:05,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [556338337] [2023-11-17 15:45:05,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 15:45:05,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 15:45:05,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 15:45:05,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 15:45:05,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 15:45:05,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [556338337] [2023-11-17 15:45:05,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [556338337] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 15:45:05,811 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 15:45:05,811 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-17 15:45:05,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632074126] [2023-11-17 15:45:05,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 15:45:05,819 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-17 15:45:05,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 15:45:05,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-17 15:45:05,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-17 15:45:05,843 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 145 out of 304 [2023-11-17 15:45:05,847 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 43 transitions, 122 flow. Second operand has 3 states, 3 states have (on average 155.33333333333334) internal successors, (466), 3 states have internal predecessors, (466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 15:45:05,847 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 15:45:05,847 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 145 of 304 [2023-11-17 15:45:05,848 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 15:45:07,514 INFO L124 PetriNetUnfolderBase]: 24493/28515 cut-off events. [2023-11-17 15:45:07,515 INFO L125 PetriNetUnfolderBase]: For 1333/1333 co-relation queries the response was YES. [2023-11-17 15:45:07,577 INFO L83 FinitePrefix]: Finished finitePrefix Result has 58163 conditions, 28515 events. 24493/28515 cut-off events. For 1333/1333 co-relation queries the response was YES. Maximal size of possible extension queue 939. Compared 100535 event pairs, 4411 based on Foata normal form. 1/15700 useless extension candidates. Maximal degree in co-relation 44684. Up to 18741 conditions per place. [2023-11-17 15:45:07,680 INFO L140 encePairwiseOnDemand]: 300/304 looper letters, 59 selfloop transitions, 3 changer transitions 1/69 dead transitions. [2023-11-17 15:45:07,680 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 69 transitions, 321 flow [2023-11-17 15:45:07,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-17 15:45:07,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-17 15:45:07,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 499 transitions. [2023-11-17 15:45:07,691 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5471491228070176 [2023-11-17 15:45:07,691 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 499 transitions. [2023-11-17 15:45:07,692 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 499 transitions. [2023-11-17 15:45:07,693 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 15:45:07,694 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 499 transitions. [2023-11-17 15:45:07,697 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 166.33333333333334) internal successors, (499), 3 states have internal predecessors, (499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 15:45:07,701 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 304.0) internal successors, (1216), 4 states have internal predecessors, (1216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 15:45:07,701 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 304.0) internal successors, (1216), 4 states have internal predecessors, (1216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 15:45:07,702 INFO L175 Difference]: Start difference. First operand has 56 places, 43 transitions, 122 flow. Second operand 3 states and 499 transitions. [2023-11-17 15:45:07,703 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 69 transitions, 321 flow [2023-11-17 15:45:07,744 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 69 transitions, 283 flow, removed 0 selfloop flow, removed 12 redundant places. [2023-11-17 15:45:07,746 INFO L231 Difference]: Finished difference. Result has 47 places, 45 transitions, 117 flow [2023-11-17 15:45:07,747 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=304, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=117, PETRI_PLACES=47, PETRI_TRANSITIONS=45} [2023-11-17 15:45:07,749 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, -9 predicate places. [2023-11-17 15:45:07,749 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 45 transitions, 117 flow [2023-11-17 15:45:07,750 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 155.33333333333334) internal successors, (466), 3 states have internal predecessors, (466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 15:45:07,750 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 15:45:07,750 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, 1, 1] [2023-11-17 15:45:07,750 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-17 15:45:07,750 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 4 more)] === [2023-11-17 15:45:07,750 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 15:45:07,751 INFO L85 PathProgramCache]: Analyzing trace with hash -1822759954, now seen corresponding path program 1 times [2023-11-17 15:45:07,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 15:45:07,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501334540] [2023-11-17 15:45:07,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 15:45:07,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 15:45:07,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 15:45:07,850 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-17 15:45:07,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 15:45:07,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1501334540] [2023-11-17 15:45:07,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1501334540] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 15:45:07,851 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 15:45:07,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-17 15:45:07,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711222864] [2023-11-17 15:45:07,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 15:45:07,852 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-17 15:45:07,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 15:45:07,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-17 15:45:07,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-17 15:45:07,853 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 145 out of 304 [2023-11-17 15:45:07,854 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 45 transitions, 117 flow. Second operand has 3 states, 3 states have (on average 155.66666666666666) internal successors, (467), 3 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 15:45:07,854 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 15:45:07,854 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 145 of 304 [2023-11-17 15:45:07,854 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 15:45:09,597 INFO L124 PetriNetUnfolderBase]: 31065/36311 cut-off events. [2023-11-17 15:45:09,598 INFO L125 PetriNetUnfolderBase]: For 5008/5008 co-relation queries the response was YES. [2023-11-17 15:45:09,655 INFO L83 FinitePrefix]: Finished finitePrefix Result has 79506 conditions, 36311 events. 31065/36311 cut-off events. For 5008/5008 co-relation queries the response was YES. Maximal size of possible extension queue 1204. Compared 135651 event pairs, 4902 based on Foata normal form. 1/24903 useless extension candidates. Maximal degree in co-relation 25204. Up to 26312 conditions per place. [2023-11-17 15:45:09,781 INFO L140 encePairwiseOnDemand]: 300/304 looper letters, 63 selfloop transitions, 3 changer transitions 5/77 dead transitions. [2023-11-17 15:45:09,781 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 77 transitions, 342 flow [2023-11-17 15:45:09,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-17 15:45:09,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-17 15:45:09,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 503 transitions. [2023-11-17 15:45:09,784 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5515350877192983 [2023-11-17 15:45:09,784 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 503 transitions. [2023-11-17 15:45:09,784 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 503 transitions. [2023-11-17 15:45:09,784 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 15:45:09,784 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 503 transitions. [2023-11-17 15:45:09,785 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 167.66666666666666) internal successors, (503), 3 states have internal predecessors, (503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 15:45:09,787 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 304.0) internal successors, (1216), 4 states have internal predecessors, (1216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 15:45:09,787 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 304.0) internal successors, (1216), 4 states have internal predecessors, (1216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 15:45:09,787 INFO L175 Difference]: Start difference. First operand has 47 places, 45 transitions, 117 flow. Second operand 3 states and 503 transitions. [2023-11-17 15:45:09,787 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 77 transitions, 342 flow [2023-11-17 15:45:09,788 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 77 transitions, 337 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-17 15:45:09,789 INFO L231 Difference]: Finished difference. Result has 49 places, 47 transitions, 133 flow [2023-11-17 15:45:09,789 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=304, PETRI_DIFFERENCE_MINUEND_FLOW=114, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=133, PETRI_PLACES=49, PETRI_TRANSITIONS=47} [2023-11-17 15:45:09,790 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, -7 predicate places. [2023-11-17 15:45:09,790 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 47 transitions, 133 flow [2023-11-17 15:45:09,791 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 155.66666666666666) internal successors, (467), 3 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 15:45:09,791 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 15:45:09,791 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, 1, 1, 1] [2023-11-17 15:45:09,791 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-17 15:45:09,791 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 4 more)] === [2023-11-17 15:45:09,791 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 15:45:09,792 INFO L85 PathProgramCache]: Analyzing trace with hash 1229229423, now seen corresponding path program 1 times [2023-11-17 15:45:09,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 15:45:09,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193568706] [2023-11-17 15:45:09,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 15:45:09,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 15:45:09,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 15:45:09,903 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-17 15:45:09,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 15:45:09,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [193568706] [2023-11-17 15:45:09,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [193568706] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 15:45:09,904 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 15:45:09,904 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-17 15:45:09,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320120751] [2023-11-17 15:45:09,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 15:45:09,904 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-17 15:45:09,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 15:45:09,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-17 15:45:09,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-17 15:45:09,905 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 145 out of 304 [2023-11-17 15:45:09,906 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 47 transitions, 133 flow. Second operand has 3 states, 3 states have (on average 156.0) internal successors, (468), 3 states have internal predecessors, (468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 15:45:09,906 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 15:45:09,906 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 145 of 304 [2023-11-17 15:45:09,906 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 15:45:12,275 INFO L124 PetriNetUnfolderBase]: 42537/50110 cut-off events. [2023-11-17 15:45:12,275 INFO L125 PetriNetUnfolderBase]: For 15230/15230 co-relation queries the response was YES. [2023-11-17 15:45:12,354 INFO L83 FinitePrefix]: Finished finitePrefix Result has 118639 conditions, 50110 events. 42537/50110 cut-off events. For 15230/15230 co-relation queries the response was YES. Maximal size of possible extension queue 1656. Compared 202499 event pairs, 7513 based on Foata normal form. 1/43236 useless extension candidates. Maximal degree in co-relation 37986. Up to 34724 conditions per place. [2023-11-17 15:45:12,508 INFO L140 encePairwiseOnDemand]: 300/304 looper letters, 67 selfloop transitions, 3 changer transitions 9/85 dead transitions. [2023-11-17 15:45:12,509 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 85 transitions, 396 flow [2023-11-17 15:45:12,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-17 15:45:12,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-17 15:45:12,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 507 transitions. [2023-11-17 15:45:12,510 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.555921052631579 [2023-11-17 15:45:12,510 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 507 transitions. [2023-11-17 15:45:12,510 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 507 transitions. [2023-11-17 15:45:12,511 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 15:45:12,511 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 507 transitions. [2023-11-17 15:45:12,512 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 169.0) internal successors, (507), 3 states have internal predecessors, (507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 15:45:12,514 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 304.0) internal successors, (1216), 4 states have internal predecessors, (1216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 15:45:12,514 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 304.0) internal successors, (1216), 4 states have internal predecessors, (1216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 15:45:12,514 INFO L175 Difference]: Start difference. First operand has 49 places, 47 transitions, 133 flow. Second operand 3 states and 507 transitions. [2023-11-17 15:45:12,515 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 85 transitions, 396 flow [2023-11-17 15:45:12,518 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 85 transitions, 391 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-17 15:45:12,519 INFO L231 Difference]: Finished difference. Result has 51 places, 49 transitions, 149 flow [2023-11-17 15:45:12,520 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=304, PETRI_DIFFERENCE_MINUEND_FLOW=130, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=149, PETRI_PLACES=51, PETRI_TRANSITIONS=49} [2023-11-17 15:45:12,520 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, -5 predicate places. [2023-11-17 15:45:12,521 INFO L495 AbstractCegarLoop]: Abstraction has has 51 places, 49 transitions, 149 flow [2023-11-17 15:45:12,521 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 156.0) internal successors, (468), 3 states have internal predecessors, (468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 15:45:12,521 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 15:45:12,521 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, 1, 1, 1, 1] [2023-11-17 15:45:12,521 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-17 15:45:12,521 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 4 more)] === [2023-11-17 15:45:12,522 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 15:45:12,522 INFO L85 PathProgramCache]: Analyzing trace with hash -835301838, now seen corresponding path program 1 times [2023-11-17 15:45:12,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 15:45:12,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1859794008] [2023-11-17 15:45:12,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 15:45:12,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 15:45:12,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 15:45:12,663 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 15:45:12,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 15:45:12,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1859794008] [2023-11-17 15:45:12,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1859794008] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 15:45:12,663 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 15:45:12,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-17 15:45:12,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150491616] [2023-11-17 15:45:12,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 15:45:12,664 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-17 15:45:12,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 15:45:12,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-17 15:45:12,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-17 15:45:12,665 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 304 [2023-11-17 15:45:12,665 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 49 transitions, 149 flow. Second operand has 4 states, 4 states have (on average 143.5) internal successors, (574), 4 states have internal predecessors, (574), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 15:45:12,666 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 15:45:12,666 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 304 [2023-11-17 15:45:12,666 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 15:45:14,932 INFO L124 PetriNetUnfolderBase]: 42133/49597 cut-off events. [2023-11-17 15:45:14,932 INFO L125 PetriNetUnfolderBase]: For 19842/19842 co-relation queries the response was YES. [2023-11-17 15:45:15,021 INFO L83 FinitePrefix]: Finished finitePrefix Result has 122744 conditions, 49597 events. 42133/49597 cut-off events. For 19842/19842 co-relation queries the response was YES. Maximal size of possible extension queue 1625. Compared 197618 event pairs, 1119 based on Foata normal form. 706/50247 useless extension candidates. Maximal degree in co-relation 39498. Up to 19267 conditions per place. [2023-11-17 15:45:15,204 INFO L140 encePairwiseOnDemand]: 299/304 looper letters, 108 selfloop transitions, 6 changer transitions 16/136 dead transitions. [2023-11-17 15:45:15,205 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 136 transitions, 657 flow [2023-11-17 15:45:15,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-17 15:45:15,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-17 15:45:15,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 790 transitions. [2023-11-17 15:45:15,207 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5197368421052632 [2023-11-17 15:45:15,207 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 790 transitions. [2023-11-17 15:45:15,207 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 790 transitions. [2023-11-17 15:45:15,207 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 15:45:15,207 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 790 transitions. [2023-11-17 15:45:15,209 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 158.0) internal successors, (790), 5 states have internal predecessors, (790), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 15:45:15,210 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 304.0) internal successors, (1824), 6 states have internal predecessors, (1824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 15:45:15,211 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 304.0) internal successors, (1824), 6 states have internal predecessors, (1824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 15:45:15,211 INFO L175 Difference]: Start difference. First operand has 51 places, 49 transitions, 149 flow. Second operand 5 states and 790 transitions. [2023-11-17 15:45:15,211 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 136 transitions, 657 flow [2023-11-17 15:45:15,215 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 136 transitions, 653 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-17 15:45:15,216 INFO L231 Difference]: Finished difference. Result has 55 places, 51 transitions, 170 flow [2023-11-17 15:45:15,216 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=304, PETRI_DIFFERENCE_MINUEND_FLOW=146, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=170, PETRI_PLACES=55, PETRI_TRANSITIONS=51} [2023-11-17 15:45:15,217 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, -1 predicate places. [2023-11-17 15:45:15,217 INFO L495 AbstractCegarLoop]: Abstraction has has 55 places, 51 transitions, 170 flow [2023-11-17 15:45:15,217 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 143.5) internal successors, (574), 4 states have internal predecessors, (574), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 15:45:15,217 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 15:45:15,218 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, 1, 1, 1, 1] [2023-11-17 15:45:15,218 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-17 15:45:15,218 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 4 more)] === [2023-11-17 15:45:15,218 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 15:45:15,218 INFO L85 PathProgramCache]: Analyzing trace with hash -980600290, now seen corresponding path program 1 times [2023-11-17 15:45:15,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 15:45:15,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329050818] [2023-11-17 15:45:15,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 15:45:15,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 15:45:15,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 15:45:15,296 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-17 15:45:15,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 15:45:15,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1329050818] [2023-11-17 15:45:15,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1329050818] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-17 15:45:15,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1328316133] [2023-11-17 15:45:15,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 15:45:15,297 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-17 15:45:15,297 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-17 15:45:15,302 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-17 15:45:15,305 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-17 15:45:15,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 15:45:15,408 INFO L262 TraceCheckSpWp]: Trace formula consists of 330 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-17 15:45:15,413 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-17 15:45:15,506 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-17 15:45:15,507 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-17 15:45:15,573 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-17 15:45:15,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1328316133] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-17 15:45:15,574 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-17 15:45:15,574 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 4 [2023-11-17 15:45:15,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317975744] [2023-11-17 15:45:15,574 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-17 15:45:15,574 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-17 15:45:15,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 15:45:15,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-17 15:45:15,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-17 15:45:15,577 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 304 [2023-11-17 15:45:15,578 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 51 transitions, 170 flow. Second operand has 5 states, 5 states have (on average 143.2) internal successors, (716), 5 states have internal predecessors, (716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 15:45:15,578 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 15:45:15,578 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 304 [2023-11-17 15:45:15,578 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 15:45:17,899 INFO L124 PetriNetUnfolderBase]: 41757/49796 cut-off events. [2023-11-17 15:45:17,900 INFO L125 PetriNetUnfolderBase]: For 28176/28176 co-relation queries the response was YES. [2023-11-17 15:45:17,989 INFO L83 FinitePrefix]: Finished finitePrefix Result has 132163 conditions, 49796 events. 41757/49796 cut-off events. For 28176/28176 co-relation queries the response was YES. Maximal size of possible extension queue 1651. Compared 210515 event pairs, 5662 based on Foata normal form. 1085/50656 useless extension candidates. Maximal degree in co-relation 43327. Up to 24256 conditions per place. [2023-11-17 15:45:18,092 INFO L140 encePairwiseOnDemand]: 298/304 looper letters, 121 selfloop transitions, 6 changer transitions 11/144 dead transitions. [2023-11-17 15:45:18,092 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 144 transitions, 759 flow [2023-11-17 15:45:18,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-17 15:45:18,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-17 15:45:18,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 792 transitions. [2023-11-17 15:45:18,094 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5210526315789473 [2023-11-17 15:45:18,094 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 792 transitions. [2023-11-17 15:45:18,094 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 792 transitions. [2023-11-17 15:45:18,095 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 15:45:18,095 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 792 transitions. [2023-11-17 15:45:18,096 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 158.4) internal successors, (792), 5 states have internal predecessors, (792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 15:45:18,098 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 304.0) internal successors, (1824), 6 states have internal predecessors, (1824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 15:45:18,098 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 304.0) internal successors, (1824), 6 states have internal predecessors, (1824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 15:45:18,099 INFO L175 Difference]: Start difference. First operand has 55 places, 51 transitions, 170 flow. Second operand 5 states and 792 transitions. [2023-11-17 15:45:18,099 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 144 transitions, 759 flow [2023-11-17 15:45:18,102 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 144 transitions, 746 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-17 15:45:18,103 INFO L231 Difference]: Finished difference. Result has 60 places, 54 transitions, 203 flow [2023-11-17 15:45:18,103 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=304, PETRI_DIFFERENCE_MINUEND_FLOW=166, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=203, PETRI_PLACES=60, PETRI_TRANSITIONS=54} [2023-11-17 15:45:18,104 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, 4 predicate places. [2023-11-17 15:45:18,104 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 54 transitions, 203 flow [2023-11-17 15:45:18,104 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 143.2) internal successors, (716), 5 states have internal predecessors, (716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 15:45:18,104 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 15:45:18,104 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, 1, 1, 1, 1] [2023-11-17 15:45:18,110 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-17 15:45:18,309 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-17 15:45:18,309 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 4 more)] === [2023-11-17 15:45:18,310 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 15:45:18,310 INFO L85 PathProgramCache]: Analyzing trace with hash 483326117, now seen corresponding path program 1 times [2023-11-17 15:45:18,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 15:45:18,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1439519386] [2023-11-17 15:45:18,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 15:45:18,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 15:45:18,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 15:45:18,416 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 15:45:18,416 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 15:45:18,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1439519386] [2023-11-17 15:45:18,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1439519386] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 15:45:18,416 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 15:45:18,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-17 15:45:18,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492867547] [2023-11-17 15:45:18,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 15:45:18,417 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-17 15:45:18,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 15:45:18,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-17 15:45:18,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-17 15:45:18,418 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 304 [2023-11-17 15:45:18,419 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 54 transitions, 203 flow. Second operand has 4 states, 4 states have (on average 143.5) internal successors, (574), 4 states have internal predecessors, (574), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 15:45:18,420 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 15:45:18,420 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 304 [2023-11-17 15:45:18,420 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 15:45:21,531 INFO L124 PetriNetUnfolderBase]: 48415/58315 cut-off events. [2023-11-17 15:45:21,531 INFO L125 PetriNetUnfolderBase]: For 59957/59975 co-relation queries the response was YES. [2023-11-17 15:45:21,653 INFO L83 FinitePrefix]: Finished finitePrefix Result has 173045 conditions, 58315 events. 48415/58315 cut-off events. For 59957/59975 co-relation queries the response was YES. Maximal size of possible extension queue 1943. Compared 261750 event pairs, 6345 based on Foata normal form. 1312/58970 useless extension candidates. Maximal degree in co-relation 75464. Up to 28590 conditions per place. [2023-11-17 15:45:21,758 INFO L140 encePairwiseOnDemand]: 298/304 looper letters, 122 selfloop transitions, 6 changer transitions 23/157 dead transitions. [2023-11-17 15:45:21,758 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 157 transitions, 876 flow [2023-11-17 15:45:21,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-17 15:45:21,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-17 15:45:21,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 800 transitions. [2023-11-17 15:45:21,761 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5263157894736842 [2023-11-17 15:45:21,761 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 800 transitions. [2023-11-17 15:45:21,761 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 800 transitions. [2023-11-17 15:45:21,762 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 15:45:21,762 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 800 transitions. [2023-11-17 15:45:21,763 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 160.0) internal successors, (800), 5 states have internal predecessors, (800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 15:45:21,764 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 304.0) internal successors, (1824), 6 states have internal predecessors, (1824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 15:45:21,765 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 304.0) internal successors, (1824), 6 states have internal predecessors, (1824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 15:45:21,765 INFO L175 Difference]: Start difference. First operand has 60 places, 54 transitions, 203 flow. Second operand 5 states and 800 transitions. [2023-11-17 15:45:21,765 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 157 transitions, 876 flow [2023-11-17 15:45:21,781 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 157 transitions, 859 flow, removed 4 selfloop flow, removed 1 redundant places. [2023-11-17 15:45:21,782 INFO L231 Difference]: Finished difference. Result has 65 places, 55 transitions, 227 flow [2023-11-17 15:45:21,782 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=304, PETRI_DIFFERENCE_MINUEND_FLOW=198, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=227, PETRI_PLACES=65, PETRI_TRANSITIONS=55} [2023-11-17 15:45:21,783 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, 9 predicate places. [2023-11-17 15:45:21,783 INFO L495 AbstractCegarLoop]: Abstraction has has 65 places, 55 transitions, 227 flow [2023-11-17 15:45:21,783 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 143.5) internal successors, (574), 4 states have internal predecessors, (574), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 15:45:21,783 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 15:45:21,783 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, 1, 1, 1, 1] [2023-11-17 15:45:21,783 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-17 15:45:21,784 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 4 more)] === [2023-11-17 15:45:21,784 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 15:45:21,784 INFO L85 PathProgramCache]: Analyzing trace with hash 1734756253, now seen corresponding path program 1 times [2023-11-17 15:45:21,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 15:45:21,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455124845] [2023-11-17 15:45:21,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 15:45:21,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 15:45:21,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 15:45:21,874 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 15:45:21,874 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 15:45:21,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455124845] [2023-11-17 15:45:21,875 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [455124845] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 15:45:21,875 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 15:45:21,875 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-17 15:45:21,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609056980] [2023-11-17 15:45:21,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 15:45:21,875 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-17 15:45:21,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 15:45:21,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-17 15:45:21,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-17 15:45:21,876 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 304 [2023-11-17 15:45:21,877 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 55 transitions, 227 flow. Second operand has 4 states, 4 states have (on average 143.5) internal successors, (574), 4 states have internal predecessors, (574), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 15:45:21,877 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 15:45:21,877 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 304 [2023-11-17 15:45:21,877 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 15:45:24,022 INFO L124 PetriNetUnfolderBase]: 31893/37915 cut-off events. [2023-11-17 15:45:24,023 INFO L125 PetriNetUnfolderBase]: For 50003/50003 co-relation queries the response was YES. [2023-11-17 15:45:24,103 INFO L83 FinitePrefix]: Finished finitePrefix Result has 124382 conditions, 37915 events. 31893/37915 cut-off events. For 50003/50003 co-relation queries the response was YES. Maximal size of possible extension queue 1283. Compared 151946 event pairs, 749 based on Foata normal form. 426/38284 useless extension candidates. Maximal degree in co-relation 59933. Up to 14817 conditions per place. [2023-11-17 15:45:24,189 INFO L140 encePairwiseOnDemand]: 299/304 looper letters, 99 selfloop transitions, 4 changer transitions 39/148 dead transitions. [2023-11-17 15:45:24,189 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 148 transitions, 899 flow [2023-11-17 15:45:24,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-17 15:45:24,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-17 15:45:24,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 786 transitions. [2023-11-17 15:45:24,191 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5171052631578947 [2023-11-17 15:45:24,191 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 786 transitions. [2023-11-17 15:45:24,191 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 786 transitions. [2023-11-17 15:45:24,192 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 15:45:24,192 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 786 transitions. [2023-11-17 15:45:24,193 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 157.2) internal successors, (786), 5 states have internal predecessors, (786), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 15:45:24,194 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 304.0) internal successors, (1824), 6 states have internal predecessors, (1824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 15:45:24,195 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 304.0) internal successors, (1824), 6 states have internal predecessors, (1824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 15:45:24,195 INFO L175 Difference]: Start difference. First operand has 65 places, 55 transitions, 227 flow. Second operand 5 states and 786 transitions. [2023-11-17 15:45:24,195 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 148 transitions, 899 flow [2023-11-17 15:45:24,407 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 148 transitions, 870 flow, removed 10 selfloop flow, removed 1 redundant places. [2023-11-17 15:45:24,408 INFO L231 Difference]: Finished difference. Result has 68 places, 55 transitions, 229 flow [2023-11-17 15:45:24,408 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=304, PETRI_DIFFERENCE_MINUEND_FLOW=216, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=229, PETRI_PLACES=68, PETRI_TRANSITIONS=55} [2023-11-17 15:45:24,409 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, 12 predicate places. [2023-11-17 15:45:24,409 INFO L495 AbstractCegarLoop]: Abstraction has has 68 places, 55 transitions, 229 flow [2023-11-17 15:45:24,409 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 143.5) internal successors, (574), 4 states have internal predecessors, (574), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 15:45:24,409 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 15:45:24,409 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, 1, 1, 1, 1] [2023-11-17 15:45:24,409 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-17 15:45:24,409 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 4 more)] === [2023-11-17 15:45:24,410 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 15:45:24,410 INFO L85 PathProgramCache]: Analyzing trace with hash 1788701847, now seen corresponding path program 2 times [2023-11-17 15:45:24,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 15:45:24,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374514184] [2023-11-17 15:45:24,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 15:45:24,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 15:45:24,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 15:45:24,480 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 15:45:24,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 15:45:24,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [374514184] [2023-11-17 15:45:24,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [374514184] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 15:45:24,481 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 15:45:24,481 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-17 15:45:24,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255390324] [2023-11-17 15:45:24,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 15:45:24,481 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-17 15:45:24,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 15:45:24,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-17 15:45:24,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-17 15:45:24,482 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 304 [2023-11-17 15:45:24,482 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 55 transitions, 229 flow. Second operand has 4 states, 4 states have (on average 143.5) internal successors, (574), 4 states have internal predecessors, (574), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 15:45:24,482 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 15:45:24,483 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 304 [2023-11-17 15:45:24,483 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 15:45:25,900 INFO L124 PetriNetUnfolderBase]: 20863/24697 cut-off events. [2023-11-17 15:45:25,900 INFO L125 PetriNetUnfolderBase]: For 34716/34722 co-relation queries the response was YES. [2023-11-17 15:45:25,962 INFO L83 FinitePrefix]: Finished finitePrefix Result has 84761 conditions, 24697 events. 20863/24697 cut-off events. For 34716/34722 co-relation queries the response was YES. Maximal size of possible extension queue 778. Compared 93915 event pairs, 986 based on Foata normal form. 629/25294 useless extension candidates. Maximal degree in co-relation 46906. Up to 19385 conditions per place. [2023-11-17 15:45:26,058 INFO L140 encePairwiseOnDemand]: 299/304 looper letters, 121 selfloop transitions, 6 changer transitions 0/133 dead transitions. [2023-11-17 15:45:26,059 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 133 transitions, 813 flow [2023-11-17 15:45:26,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-17 15:45:26,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-17 15:45:26,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 773 transitions. [2023-11-17 15:45:26,061 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5085526315789474 [2023-11-17 15:45:26,061 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 773 transitions. [2023-11-17 15:45:26,061 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 773 transitions. [2023-11-17 15:45:26,062 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 15:45:26,062 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 773 transitions. [2023-11-17 15:45:26,063 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 154.6) internal successors, (773), 5 states have internal predecessors, (773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 15:45:26,064 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 304.0) internal successors, (1824), 6 states have internal predecessors, (1824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 15:45:26,065 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 304.0) internal successors, (1824), 6 states have internal predecessors, (1824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 15:45:26,065 INFO L175 Difference]: Start difference. First operand has 68 places, 55 transitions, 229 flow. Second operand 5 states and 773 transitions. [2023-11-17 15:45:26,065 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 133 transitions, 813 flow [2023-11-17 15:45:26,125 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 133 transitions, 800 flow, removed 2 selfloop flow, removed 1 redundant places. [2023-11-17 15:45:26,127 INFO L231 Difference]: Finished difference. Result has 72 places, 58 transitions, 263 flow [2023-11-17 15:45:26,127 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=304, PETRI_DIFFERENCE_MINUEND_FLOW=222, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=263, PETRI_PLACES=72, PETRI_TRANSITIONS=58} [2023-11-17 15:45:26,127 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, 16 predicate places. [2023-11-17 15:45:26,127 INFO L495 AbstractCegarLoop]: Abstraction has has 72 places, 58 transitions, 263 flow [2023-11-17 15:45:26,128 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 143.5) internal successors, (574), 4 states have internal predecessors, (574), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 15:45:26,128 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 15:45:26,128 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, 1, 1, 1, 1, 1] [2023-11-17 15:45:26,128 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-17 15:45:26,128 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-17 15:45:26,128 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 15:45:26,128 INFO L85 PathProgramCache]: Analyzing trace with hash -2103990155, now seen corresponding path program 1 times [2023-11-17 15:45:26,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 15:45:26,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204276934] [2023-11-17 15:45:26,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 15:45:26,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 15:45:26,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 15:45:26,205 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-17 15:45:26,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 15:45:26,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1204276934] [2023-11-17 15:45:26,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1204276934] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 15:45:26,206 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 15:45:26,206 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-17 15:45:26,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088397390] [2023-11-17 15:45:26,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 15:45:26,206 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-17 15:45:26,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 15:45:26,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-17 15:45:26,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-17 15:45:26,208 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 304 [2023-11-17 15:45:26,208 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 58 transitions, 263 flow. Second operand has 4 states, 4 states have (on average 143.75) internal successors, (575), 4 states have internal predecessors, (575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 15:45:26,208 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 15:45:26,208 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 304 [2023-11-17 15:45:26,208 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 15:45:27,614 INFO L124 PetriNetUnfolderBase]: 20061/23909 cut-off events. [2023-11-17 15:45:27,614 INFO L125 PetriNetUnfolderBase]: For 43375/43375 co-relation queries the response was YES. [2023-11-17 15:45:27,674 INFO L83 FinitePrefix]: Finished finitePrefix Result has 87109 conditions, 23909 events. 20061/23909 cut-off events. For 43375/43375 co-relation queries the response was YES. Maximal size of possible extension queue 747. Compared 91514 event pairs, 769 based on Foata normal form. 804/24665 useless extension candidates. Maximal degree in co-relation 75121. Up to 17269 conditions per place. [2023-11-17 15:45:27,753 INFO L140 encePairwiseOnDemand]: 299/304 looper letters, 133 selfloop transitions, 6 changer transitions 0/145 dead transitions. [2023-11-17 15:45:27,753 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 145 transitions, 982 flow [2023-11-17 15:45:27,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-17 15:45:27,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-17 15:45:27,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 773 transitions. [2023-11-17 15:45:27,755 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5085526315789474 [2023-11-17 15:45:27,755 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 773 transitions. [2023-11-17 15:45:27,755 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 773 transitions. [2023-11-17 15:45:27,755 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 15:45:27,756 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 773 transitions. [2023-11-17 15:45:27,757 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 154.6) internal successors, (773), 5 states have internal predecessors, (773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 15:45:27,758 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 304.0) internal successors, (1824), 6 states have internal predecessors, (1824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 15:45:27,759 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 304.0) internal successors, (1824), 6 states have internal predecessors, (1824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 15:45:27,759 INFO L175 Difference]: Start difference. First operand has 72 places, 58 transitions, 263 flow. Second operand 5 states and 773 transitions. [2023-11-17 15:45:27,759 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 145 transitions, 982 flow [2023-11-17 15:45:27,905 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 145 transitions, 949 flow, removed 12 selfloop flow, removed 1 redundant places. [2023-11-17 15:45:27,907 INFO L231 Difference]: Finished difference. Result has 77 places, 61 transitions, 295 flow [2023-11-17 15:45:27,907 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=304, PETRI_DIFFERENCE_MINUEND_FLOW=254, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=295, PETRI_PLACES=77, PETRI_TRANSITIONS=61} [2023-11-17 15:45:27,907 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, 21 predicate places. [2023-11-17 15:45:27,907 INFO L495 AbstractCegarLoop]: Abstraction has has 77 places, 61 transitions, 295 flow [2023-11-17 15:45:27,908 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 143.75) internal successors, (575), 4 states have internal predecessors, (575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 15:45:27,908 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 15:45:27,908 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, 1, 1, 1, 1, 1, 1] [2023-11-17 15:45:27,908 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-17 15:45:27,908 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-17 15:45:27,908 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 15:45:27,908 INFO L85 PathProgramCache]: Analyzing trace with hash -264802222, now seen corresponding path program 1 times [2023-11-17 15:45:27,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 15:45:27,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882566390] [2023-11-17 15:45:27,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 15:45:27,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 15:45:27,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 15:45:28,002 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-17 15:45:28,002 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 15:45:28,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [882566390] [2023-11-17 15:45:28,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [882566390] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 15:45:28,003 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 15:45:28,003 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-17 15:45:28,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378586591] [2023-11-17 15:45:28,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 15:45:28,003 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-17 15:45:28,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 15:45:28,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-17 15:45:28,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-17 15:45:28,005 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 304 [2023-11-17 15:45:28,005 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 61 transitions, 295 flow. Second operand has 4 states, 4 states have (on average 144.0) internal successors, (576), 4 states have internal predecessors, (576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 15:45:28,005 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 15:45:28,005 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 304 [2023-11-17 15:45:28,005 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 15:45:29,632 INFO L124 PetriNetUnfolderBase]: 21673/26159 cut-off events. [2023-11-17 15:45:29,632 INFO L125 PetriNetUnfolderBase]: For 77596/77642 co-relation queries the response was YES. [2023-11-17 15:45:29,703 INFO L83 FinitePrefix]: Finished finitePrefix Result has 102950 conditions, 26159 events. 21673/26159 cut-off events. For 77596/77642 co-relation queries the response was YES. Maximal size of possible extension queue 846. Compared 104035 event pairs, 3345 based on Foata normal form. 494/26470 useless extension candidates. Maximal degree in co-relation 90077. Up to 10449 conditions per place. [2023-11-17 15:45:29,799 INFO L140 encePairwiseOnDemand]: 298/304 looper letters, 161 selfloop transitions, 6 changer transitions 3/176 dead transitions. [2023-11-17 15:45:29,799 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 176 transitions, 1297 flow [2023-11-17 15:45:29,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-17 15:45:29,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-17 15:45:29,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 784 transitions. [2023-11-17 15:45:29,801 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5157894736842106 [2023-11-17 15:45:29,802 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 784 transitions. [2023-11-17 15:45:29,802 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 784 transitions. [2023-11-17 15:45:29,802 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 15:45:29,802 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 784 transitions. [2023-11-17 15:45:29,803 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 156.8) internal successors, (784), 5 states have internal predecessors, (784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 15:45:29,805 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 304.0) internal successors, (1824), 6 states have internal predecessors, (1824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 15:45:29,805 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 304.0) internal successors, (1824), 6 states have internal predecessors, (1824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 15:45:29,805 INFO L175 Difference]: Start difference. First operand has 77 places, 61 transitions, 295 flow. Second operand 5 states and 784 transitions. [2023-11-17 15:45:29,805 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 176 transitions, 1297 flow [2023-11-17 15:45:29,833 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 176 transitions, 1264 flow, removed 12 selfloop flow, removed 1 redundant places. [2023-11-17 15:45:29,835 INFO L231 Difference]: Finished difference. Result has 82 places, 64 transitions, 323 flow [2023-11-17 15:45:29,835 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=304, PETRI_DIFFERENCE_MINUEND_FLOW=286, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=323, PETRI_PLACES=82, PETRI_TRANSITIONS=64} [2023-11-17 15:45:29,835 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, 26 predicate places. [2023-11-17 15:45:29,836 INFO L495 AbstractCegarLoop]: Abstraction has has 82 places, 64 transitions, 323 flow [2023-11-17 15:45:29,836 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 144.0) internal successors, (576), 4 states have internal predecessors, (576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 15:45:29,836 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 15:45:29,836 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, 1, 1, 1, 1, 1, 1] [2023-11-17 15:45:29,836 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-17 15:45:29,836 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-17 15:45:29,837 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 15:45:29,837 INFO L85 PathProgramCache]: Analyzing trace with hash -243079319, now seen corresponding path program 1 times [2023-11-17 15:45:29,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 15:45:29,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921199597] [2023-11-17 15:45:29,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 15:45:29,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 15:45:29,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 15:45:29,919 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-17 15:45:29,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 15:45:29,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921199597] [2023-11-17 15:45:29,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1921199597] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 15:45:29,920 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 15:45:29,920 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-17 15:45:29,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899559803] [2023-11-17 15:45:29,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 15:45:29,920 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-17 15:45:29,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 15:45:29,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-17 15:45:29,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-17 15:45:29,921 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 304 [2023-11-17 15:45:29,921 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 64 transitions, 323 flow. Second operand has 4 states, 4 states have (on average 144.0) internal successors, (576), 4 states have internal predecessors, (576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 15:45:29,921 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 15:45:29,921 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 304 [2023-11-17 15:45:29,921 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 15:45:31,596 INFO L124 PetriNetUnfolderBase]: 21429/25852 cut-off events. [2023-11-17 15:45:31,596 INFO L125 PetriNetUnfolderBase]: For 76876/76922 co-relation queries the response was YES. [2023-11-17 15:45:31,678 INFO L83 FinitePrefix]: Finished finitePrefix Result has 108719 conditions, 25852 events. 21429/25852 cut-off events. For 76876/76922 co-relation queries the response was YES. Maximal size of possible extension queue 835. Compared 100354 event pairs, 994 based on Foata normal form. 251/25956 useless extension candidates. Maximal degree in co-relation 95406. Up to 10326 conditions per place. [2023-11-17 15:45:31,758 INFO L140 encePairwiseOnDemand]: 299/304 looper letters, 126 selfloop transitions, 4 changer transitions 44/180 dead transitions. [2023-11-17 15:45:31,758 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 180 transitions, 1329 flow [2023-11-17 15:45:31,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-17 15:45:31,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-17 15:45:31,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 782 transitions. [2023-11-17 15:45:31,761 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5144736842105263 [2023-11-17 15:45:31,761 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 782 transitions. [2023-11-17 15:45:31,761 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 782 transitions. [2023-11-17 15:45:31,761 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 15:45:31,761 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 782 transitions. [2023-11-17 15:45:31,762 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 156.4) internal successors, (782), 5 states have internal predecessors, (782), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 15:45:31,764 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 304.0) internal successors, (1824), 6 states have internal predecessors, (1824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 15:45:31,764 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 304.0) internal successors, (1824), 6 states have internal predecessors, (1824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 15:45:31,764 INFO L175 Difference]: Start difference. First operand has 82 places, 64 transitions, 323 flow. Second operand 5 states and 782 transitions. [2023-11-17 15:45:31,764 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 180 transitions, 1329 flow [2023-11-17 15:45:31,906 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 180 transitions, 1323 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-11-17 15:45:31,907 INFO L231 Difference]: Finished difference. Result has 86 places, 64 transitions, 331 flow [2023-11-17 15:45:31,907 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=304, PETRI_DIFFERENCE_MINUEND_FLOW=318, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=331, PETRI_PLACES=86, PETRI_TRANSITIONS=64} [2023-11-17 15:45:31,908 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, 30 predicate places. [2023-11-17 15:45:31,908 INFO L495 AbstractCegarLoop]: Abstraction has has 86 places, 64 transitions, 331 flow [2023-11-17 15:45:31,908 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 144.0) internal successors, (576), 4 states have internal predecessors, (576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 15:45:31,908 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 15:45:31,908 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, 1, 1, 1, 1, 1, 1] [2023-11-17 15:45:31,908 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-17 15:45:31,908 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-17 15:45:31,909 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 15:45:31,909 INFO L85 PathProgramCache]: Analyzing trace with hash -445978541, now seen corresponding path program 2 times [2023-11-17 15:45:31,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 15:45:31,912 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405671107] [2023-11-17 15:45:31,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 15:45:31,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 15:45:31,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 15:45:31,989 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-17 15:45:31,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 15:45:31,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405671107] [2023-11-17 15:45:31,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [405671107] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 15:45:31,989 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 15:45:31,989 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-17 15:45:31,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486974104] [2023-11-17 15:45:31,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 15:45:31,990 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-17 15:45:31,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 15:45:31,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-17 15:45:31,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-17 15:45:31,991 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 304 [2023-11-17 15:45:31,992 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 64 transitions, 331 flow. Second operand has 4 states, 4 states have (on average 144.0) internal successors, (576), 4 states have internal predecessors, (576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 15:45:31,992 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 15:45:31,992 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 304 [2023-11-17 15:45:31,992 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 15:45:33,239 INFO L124 PetriNetUnfolderBase]: 14584/17627 cut-off events. [2023-11-17 15:45:33,239 INFO L125 PetriNetUnfolderBase]: For 51706/51752 co-relation queries the response was YES. [2023-11-17 15:45:33,292 INFO L83 FinitePrefix]: Finished finitePrefix Result has 76770 conditions, 17627 events. 14584/17627 cut-off events. For 51706/51752 co-relation queries the response was YES. Maximal size of possible extension queue 507. Compared 65122 event pairs, 996 based on Foata normal form. 491/18034 useless extension candidates. Maximal degree in co-relation 67358. Up to 11829 conditions per place. [2023-11-17 15:45:33,363 INFO L140 encePairwiseOnDemand]: 299/304 looper letters, 157 selfloop transitions, 6 changer transitions 0/169 dead transitions. [2023-11-17 15:45:33,363 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 169 transitions, 1278 flow [2023-11-17 15:45:33,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-17 15:45:33,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-17 15:45:33,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 773 transitions. [2023-11-17 15:45:33,365 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5085526315789474 [2023-11-17 15:45:33,365 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 773 transitions. [2023-11-17 15:45:33,365 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 773 transitions. [2023-11-17 15:45:33,365 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 15:45:33,365 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 773 transitions. [2023-11-17 15:45:33,366 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 154.6) internal successors, (773), 5 states have internal predecessors, (773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 15:45:33,368 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 304.0) internal successors, (1824), 6 states have internal predecessors, (1824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 15:45:33,368 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 304.0) internal successors, (1824), 6 states have internal predecessors, (1824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 15:45:33,368 INFO L175 Difference]: Start difference. First operand has 86 places, 64 transitions, 331 flow. Second operand 5 states and 773 transitions. [2023-11-17 15:45:33,368 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 169 transitions, 1278 flow [2023-11-17 15:45:33,455 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 169 transitions, 1271 flow, removed 2 selfloop flow, removed 1 redundant places. [2023-11-17 15:45:33,456 INFO L231 Difference]: Finished difference. Result has 90 places, 67 transitions, 365 flow [2023-11-17 15:45:33,456 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=304, PETRI_DIFFERENCE_MINUEND_FLOW=324, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=365, PETRI_PLACES=90, PETRI_TRANSITIONS=67} [2023-11-17 15:45:33,457 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, 34 predicate places. [2023-11-17 15:45:33,457 INFO L495 AbstractCegarLoop]: Abstraction has has 90 places, 67 transitions, 365 flow [2023-11-17 15:45:33,457 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 144.0) internal successors, (576), 4 states have internal predecessors, (576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 15:45:33,457 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 15:45:33,457 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, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 15:45:33,457 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-17 15:45:33,457 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-17 15:45:33,458 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 15:45:33,458 INFO L85 PathProgramCache]: Analyzing trace with hash 418549478, now seen corresponding path program 1 times [2023-11-17 15:45:33,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 15:45:33,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2134929013] [2023-11-17 15:45:33,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 15:45:33,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 15:45:33,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 15:45:34,023 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-17 15:45:34,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 15:45:34,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2134929013] [2023-11-17 15:45:34,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2134929013] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-17 15:45:34,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [316554220] [2023-11-17 15:45:34,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 15:45:34,023 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-17 15:45:34,023 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-17 15:45:34,024 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-17 15:45:34,026 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-17 15:45:34,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 15:45:34,387 INFO L262 TraceCheckSpWp]: Trace formula consists of 339 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-17 15:45:34,389 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-17 15:45:39,600 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-17 15:45:39,601 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-17 15:45:45,487 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-17 15:45:45,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [316554220] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-17 15:45:45,488 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-17 15:45:45,488 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 4] total 15 [2023-11-17 15:45:45,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923487106] [2023-11-17 15:45:45,488 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-17 15:45:45,488 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-11-17 15:45:45,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 15:45:45,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-11-17 15:45:45,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=222, Unknown=4, NotChecked=0, Total=272 [2023-11-17 15:45:45,490 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 304 [2023-11-17 15:45:45,491 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 67 transitions, 365 flow. Second operand has 17 states, 17 states have (on average 132.52941176470588) internal successors, (2253), 17 states have internal predecessors, (2253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 15:45:45,491 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 15:45:45,491 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 304 [2023-11-17 15:45:45,491 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 15:45:47,499 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-17 15:45:49,578 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-17 15:46:09,342 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-17 15:46:14,848 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-17 15:46:24,874 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-17 15:46:44,908 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-17 15:47:07,205 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-17 15:47:23,381 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-17 15:47:52,507 INFO L124 PetriNetUnfolderBase]: 87908/107197 cut-off events. [2023-11-17 15:47:52,507 INFO L125 PetriNetUnfolderBase]: For 349968/349974 co-relation queries the response was YES. [2023-11-17 15:47:53,036 INFO L83 FinitePrefix]: Finished finitePrefix Result has 486040 conditions, 107197 events. 87908/107197 cut-off events. For 349968/349974 co-relation queries the response was YES. Maximal size of possible extension queue 3043. Compared 510767 event pairs, 1860 based on Foata normal form. 953/108139 useless extension candidates. Maximal degree in co-relation 404186. Up to 18975 conditions per place. [2023-11-17 15:47:53,389 INFO L140 encePairwiseOnDemand]: 293/304 looper letters, 1058 selfloop transitions, 204 changer transitions 579/1847 dead transitions. [2023-11-17 15:47:53,389 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 153 places, 1847 transitions, 13450 flow [2023-11-17 15:47:53,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2023-11-17 15:47:53,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2023-11-17 15:47:53,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 9405 transitions. [2023-11-17 15:47:53,402 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4833984375 [2023-11-17 15:47:53,402 INFO L72 ComplementDD]: Start complementDD. Operand 64 states and 9405 transitions. [2023-11-17 15:47:53,402 INFO L73 IsDeterministic]: Start isDeterministic. Operand 64 states and 9405 transitions. [2023-11-17 15:47:53,405 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 15:47:53,405 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 64 states and 9405 transitions. [2023-11-17 15:47:53,416 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 65 states, 64 states have (on average 146.953125) internal successors, (9405), 64 states have internal predecessors, (9405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 15:47:53,541 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 65 states, 65 states have (on average 304.0) internal successors, (19760), 65 states have internal predecessors, (19760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 15:47:53,545 INFO L81 ComplementDD]: Finished complementDD. Result has 65 states, 65 states have (on average 304.0) internal successors, (19760), 65 states have internal predecessors, (19760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 15:47:53,545 INFO L175 Difference]: Start difference. First operand has 90 places, 67 transitions, 365 flow. Second operand 64 states and 9405 transitions. [2023-11-17 15:47:53,545 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 153 places, 1847 transitions, 13450 flow [2023-11-17 15:48:01,041 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 152 places, 1847 transitions, 13353 flow, removed 30 selfloop flow, removed 1 redundant places. [2023-11-17 15:48:01,050 INFO L231 Difference]: Finished difference. Result has 206 places, 279 transitions, 2810 flow [2023-11-17 15:48:01,051 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=304, PETRI_DIFFERENCE_MINUEND_FLOW=356, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=64, PETRI_FLOW=2810, PETRI_PLACES=206, PETRI_TRANSITIONS=279} [2023-11-17 15:48:01,051 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, 150 predicate places. [2023-11-17 15:48:01,051 INFO L495 AbstractCegarLoop]: Abstraction has has 206 places, 279 transitions, 2810 flow [2023-11-17 15:48:01,052 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 132.52941176470588) internal successors, (2253), 17 states have internal predecessors, (2253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 15:48:01,052 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 15:48:01,052 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, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 15:48:01,056 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-17 15:48:01,256 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-11-17 15:48:01,257 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-17 15:48:01,257 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 15:48:01,257 INFO L85 PathProgramCache]: Analyzing trace with hash -975849688, now seen corresponding path program 2 times [2023-11-17 15:48:01,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 15:48:01,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106695164] [2023-11-17 15:48:01,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 15:48:01,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 15:48:01,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 15:48:01,675 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-17 15:48:01,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 15:48:01,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2106695164] [2023-11-17 15:48:01,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2106695164] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-17 15:48:01,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2100960512] [2023-11-17 15:48:01,676 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-17 15:48:01,677 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-17 15:48:01,677 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-17 15:48:01,677 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-17 15:48:01,680 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-17 15:48:03,134 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-17 15:48:03,134 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-17 15:48:03,137 INFO L262 TraceCheckSpWp]: Trace formula consists of 339 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-17 15:48:03,138 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-17 15:48:28,753 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 1 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-17 15:48:28,753 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-17 15:48:38,047 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-17 15:48:38,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2100960512] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-17 15:48:38,047 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-17 15:48:38,047 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 3] total 14 [2023-11-17 15:48:38,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405840353] [2023-11-17 15:48:38,048 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-17 15:48:38,048 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-17 15:48:38,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 15:48:38,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-17 15:48:38,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=185, Unknown=7, NotChecked=0, Total=240 [2023-11-17 15:48:38,049 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 304 [2023-11-17 15:48:38,050 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 206 places, 279 transitions, 2810 flow. Second operand has 16 states, 16 states have (on average 132.9375) internal successors, (2127), 16 states have internal predecessors, (2127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 15:48:38,050 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 15:48:38,050 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 304 [2023-11-17 15:48:38,051 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 15:48:40,659 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-17 15:48:42,416 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-17 15:48:45,984 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-17 15:48:52,625 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-17 15:49:26,546 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-17 15:49:47,006 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-17 15:49:59,615 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-17 15:50:14,532 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-17 15:50:35,992 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-17 15:50:58,653 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-17 15:51:00,549 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-17 15:51:02,990 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-17 15:51:04,179 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-17 15:51:35,703 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-17 15:51:37,708 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-17 15:51:42,936 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-17 15:51:47,222 INFO L124 PetriNetUnfolderBase]: 152908/188527 cut-off events. [2023-11-17 15:51:47,222 INFO L125 PetriNetUnfolderBase]: For 4416040/4416040 co-relation queries the response was YES. [2023-11-17 15:51:50,345 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1421707 conditions, 188527 events. 152908/188527 cut-off events. For 4416040/4416040 co-relation queries the response was YES. Maximal size of possible extension queue 5387. Compared 986374 event pairs, 6995 based on Foata normal form. 2062/190584 useless extension candidates. Maximal degree in co-relation 1421581. Up to 69947 conditions per place. [2023-11-17 15:51:51,225 INFO L140 encePairwiseOnDemand]: 292/304 looper letters, 1241 selfloop transitions, 604 changer transitions 607/2458 dead transitions. [2023-11-17 15:51:51,225 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 253 places, 2458 transitions, 28744 flow [2023-11-17 15:51:51,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2023-11-17 15:51:51,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2023-11-17 15:51:51,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 8959 transitions. [2023-11-17 15:51:51,232 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48312122519413286 [2023-11-17 15:51:51,232 INFO L72 ComplementDD]: Start complementDD. Operand 61 states and 8959 transitions. [2023-11-17 15:51:51,232 INFO L73 IsDeterministic]: Start isDeterministic. Operand 61 states and 8959 transitions. [2023-11-17 15:51:51,234 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 15:51:51,234 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 61 states and 8959 transitions. [2023-11-17 15:51:51,242 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 62 states, 61 states have (on average 146.86885245901638) internal successors, (8959), 61 states have internal predecessors, (8959), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 15:51:51,256 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 62 states, 62 states have (on average 304.0) internal successors, (18848), 62 states have internal predecessors, (18848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 15:51:51,258 INFO L81 ComplementDD]: Finished complementDD. Result has 62 states, 62 states have (on average 304.0) internal successors, (18848), 62 states have internal predecessors, (18848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 15:51:51,258 INFO L175 Difference]: Start difference. First operand has 206 places, 279 transitions, 2810 flow. Second operand 61 states and 8959 transitions. [2023-11-17 15:51:51,258 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 253 places, 2458 transitions, 28744 flow [2023-11-17 15:54:06,628 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 237 places, 2458 transitions, 26153 flow, removed 1174 selfloop flow, removed 16 redundant places. [2023-11-17 15:54:06,644 INFO L231 Difference]: Finished difference. Result has 293 places, 833 transitions, 11079 flow [2023-11-17 15:54:06,645 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=304, PETRI_DIFFERENCE_MINUEND_FLOW=2339, PETRI_DIFFERENCE_MINUEND_PLACES=177, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=279, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=90, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=135, PETRI_DIFFERENCE_SUBTRAHEND_STATES=61, PETRI_FLOW=11079, PETRI_PLACES=293, PETRI_TRANSITIONS=833} [2023-11-17 15:54:06,645 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, 237 predicate places. [2023-11-17 15:54:06,645 INFO L495 AbstractCegarLoop]: Abstraction has has 293 places, 833 transitions, 11079 flow [2023-11-17 15:54:06,646 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 132.9375) internal successors, (2127), 16 states have internal predecessors, (2127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 15:54:06,646 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 15:54:06,646 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 15:54:06,653 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-17 15:54:06,851 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-17 15:54:06,851 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-17 15:54:06,852 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 15:54:06,852 INFO L85 PathProgramCache]: Analyzing trace with hash -1055800174, now seen corresponding path program 3 times [2023-11-17 15:54:06,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 15:54:06,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330517634] [2023-11-17 15:54:06,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 15:54:06,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 15:54:06,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 15:54:07,142 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-17 15:54:07,142 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 15:54:07,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330517634] [2023-11-17 15:54:07,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [330517634] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-17 15:54:07,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1814891802] [2023-11-17 15:54:07,142 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-17 15:54:07,142 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-17 15:54:07,143 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-17 15:54:07,143 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-17 15:54:07,145 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-17 15:54:17,100 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-17 15:54:17,101 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-17 15:54:17,105 INFO L262 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-17 15:54:17,106 INFO L285 TraceCheckSpWp]: Computing forward predicates... Received shutdown request... [2023-11-17 15:54:18,147 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-11-17 15:54:18,161 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-11-17 15:54:19,170 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-17 15:54:19,276 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (6 of 7 remaining) [2023-11-17 15:54:19,276 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-17 15:54:19,277 WARN L619 AbstractCegarLoop]: Verification canceled: while CegarLoopForPetriNet was analyzing trace of length 46 with TraceHistMax 3,while TraceCheckSpWp was constructing forward predicates,while executing Executor. [2023-11-17 15:54:19,277 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 7 remaining) [2023-11-17 15:54:19,278 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 7 remaining) [2023-11-17 15:54:19,278 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 7 remaining) [2023-11-17 15:54:19,278 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 7 remaining) [2023-11-17 15:54:19,278 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr4INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 7 remaining) [2023-11-17 15:54:19,278 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 7 remaining) [2023-11-17 15:54:19,278 INFO L445 BasicCegarLoop]: Path program histogram: [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 15:54:19,280 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-17 15:54:19,280 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-17 15:54:19,282 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.11 03:54:19 BasicIcfg [2023-11-17 15:54:19,282 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-17 15:54:19,282 INFO L158 Benchmark]: Toolchain (without parser) took 558344.07ms. Allocated memory was 180.4MB in the beginning and 7.6GB in the end (delta: 7.4GB). Free memory was 148.0MB in the beginning and 3.3GB in the end (delta: -3.2GB). Peak memory consumption was 4.2GB. Max. memory is 8.0GB. [2023-11-17 15:54:19,282 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 180.4MB. Free memory is still 139.0MB. There was no memory consumed. Max. memory is 8.0GB. [2023-11-17 15:54:19,282 INFO L158 Benchmark]: CACSL2BoogieTranslator took 185.30ms. Allocated memory is still 180.4MB. Free memory was 148.0MB in the beginning and 135.9MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2023-11-17 15:54:19,282 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.07ms. Allocated memory is still 180.4MB. Free memory was 135.9MB in the beginning and 133.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-11-17 15:54:19,283 INFO L158 Benchmark]: Boogie Preprocessor took 23.88ms. Allocated memory is still 180.4MB. Free memory was 133.8MB in the beginning and 132.3MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-11-17 15:54:19,283 INFO L158 Benchmark]: RCFGBuilder took 447.49ms. Allocated memory is still 180.4MB. Free memory was 132.3MB in the beginning and 113.9MB in the end (delta: 18.4MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. [2023-11-17 15:54:19,283 INFO L158 Benchmark]: TraceAbstraction took 557648.79ms. Allocated memory was 180.4MB in the beginning and 7.6GB in the end (delta: 7.4GB). Free memory was 113.3MB in the beginning and 3.3GB in the end (delta: -3.2GB). Peak memory consumption was 4.2GB. Max. memory is 8.0GB. [2023-11-17 15:54:19,284 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### [2023-11-17 15:54:19,289 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 180.4MB. Free memory is still 139.0MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 185.30ms. Allocated memory is still 180.4MB. Free memory was 148.0MB in the beginning and 135.9MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 33.07ms. Allocated memory is still 180.4MB. Free memory was 135.9MB in the beginning and 133.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 23.88ms. Allocated memory is still 180.4MB. Free memory was 133.8MB in the beginning and 132.3MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 447.49ms. Allocated memory is still 180.4MB. Free memory was 132.3MB in the beginning and 113.9MB in the end (delta: 18.4MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. * TraceAbstraction took 557648.79ms. Allocated memory was 180.4MB in the beginning and 7.6GB in the end (delta: 7.4GB). Free memory was 113.3MB in the beginning and 3.3GB in the end (delta: -3.2GB). Peak memory consumption was 4.2GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.6s, 160 PlacesBefore, 56 PlacesAfterwards, 155 TransitionsBefore, 43 TransitionsAfterwards, 3612 CoEnabledTransitionPairs, 7 FixpointIterations, 59 TrivialSequentialCompositions, 39 ConcurrentSequentialCompositions, 8 TrivialYvCompositions, 12 ConcurrentYvCompositions, 8 ChoiceCompositions, 126 TotalNumberOfCompositions, 4231 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4231, independent: 4231, independent conditional: 0, independent unconditional: 4231, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2385, independent: 2385, independent conditional: 0, independent unconditional: 2385, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2385, independent: 2385, independent conditional: 0, independent unconditional: 2385, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 4231, independent: 1846, independent conditional: 0, independent unconditional: 1846, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 2385, unknown conditional: 0, unknown unconditional: 2385] , Statistics on independence cache: Total cache size (in pairs): 264, Positive cache size: 264, Positive conditional cache size: 0, Positive unconditional cache size: 264, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - TimeoutResultAtElement [Line: 117]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable Cancelled while CegarLoopForPetriNet was analyzing trace of length 46 with TraceHistMax 3,while TraceCheckSpWp was constructing forward predicates,while executing Executor. - TimeoutResultAtElement [Line: 105]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message) Cancelled while CegarLoopForPetriNet was analyzing trace of length 46 with TraceHistMax 3,while TraceCheckSpWp was constructing forward predicates,while executing Executor. - TimeoutResultAtElement [Line: 106]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message) Cancelled while CegarLoopForPetriNet was analyzing trace of length 46 with TraceHistMax 3,while TraceCheckSpWp was constructing forward predicates,while executing Executor. - TimeoutResultAtElement [Line: 104]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message) Cancelled while CegarLoopForPetriNet was analyzing trace of length 46 with TraceHistMax 3,while TraceCheckSpWp was constructing forward predicates,while executing Executor. - TimeoutResultAtElement [Line: 103]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message) Cancelled while CegarLoopForPetriNet was analyzing trace of length 46 with TraceHistMax 3,while TraceCheckSpWp was constructing forward predicates,while executing Executor. - TimeoutResultAtElement [Line: 107]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message) Cancelled while CegarLoopForPetriNet was analyzing trace of length 46 with TraceHistMax 3,while TraceCheckSpWp was constructing forward predicates,while executing Executor. - TimeoutResultAtElement [Line: 108]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message) Cancelled while CegarLoopForPetriNet was analyzing trace of length 46 with TraceHistMax 3,while TraceCheckSpWp was constructing forward predicates,while executing Executor. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 13 procedures, 207 locations, 7 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 557.5s, OverallIterations: 15, TraceHistogramMax: 3, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 490.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.6s, HoareTripleCheckerStatistics: 10 mSolverCounterUnknown, 2241 SdHoareTripleChecker+Valid, 154.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2241 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 151.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 71 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 8309 IncrementalHoareTripleChecker+Invalid, 8390 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 71 mSolverCounterUnsat, 0 mSDtfsCounter, 8309 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 408 GetRequests, 238 SyntacticMatches, 4 SemanticMatches, 166 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3198 ImplicationChecksByTransitivity, 165.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11079occurred in iteration=14, InterpolantAutomatonStates: 179, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 2.1s SatisfiabilityAnalysisTime, 48.0s InterpolantComputationTime, 693 NumberOfCodeBlocks, 693 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 799 ConstructedInterpolants, 0 QuantifiedInterpolants, 12532 SizeOfPredicates, 24 NumberOfNonLiveVariables, 1008 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 20 InterpolantComputations, 11 PerfectInterpolantSequences, 62/79 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown