/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 --rcfgbuilder.only.consider.context.switches.at.boundaries.of.atomic.blocks true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_20-publish-regression_true.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-wip.dk.datarace-free-lbe-02cf818-m [2023-11-17 11:34:37,139 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-17 11:34:37,209 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 11:34:37,230 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-17 11:34:37,231 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-17 11:34:37,231 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-17 11:34:37,232 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-17 11:34:37,233 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-17 11:34:37,233 INFO L153 SettingsManager]: * Use SBE=true [2023-11-17 11:34:37,234 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-17 11:34:37,234 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-17 11:34:37,234 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-17 11:34:37,235 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-17 11:34:37,235 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-17 11:34:37,235 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-17 11:34:37,236 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-17 11:34:37,236 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-17 11:34:37,236 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-17 11:34:37,237 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-17 11:34:37,237 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-17 11:34:37,237 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-17 11:34:37,238 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-17 11:34:37,238 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-17 11:34:37,239 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-11-17 11:34:37,239 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-17 11:34:37,239 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-17 11:34:37,240 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-17 11:34:37,240 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-17 11:34:37,240 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-17 11:34:37,241 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-17 11:34:37,241 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-17 11:34:37,241 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-17 11:34:37,242 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Only consider context switches at boundaries of atomic blocks -> true [2023-11-17 11:34:37,493 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-17 11:34:37,517 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-17 11:34:37,520 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-17 11:34:37,521 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-17 11:34:37,522 INFO L274 PluginConnector]: CDTParser initialized [2023-11-17 11:34:37,523 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_20-publish-regression_true.i [2023-11-17 11:34:38,690 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-17 11:34:38,954 INFO L384 CDTParser]: Found 1 translation units. [2023-11-17 11:34:38,955 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_20-publish-regression_true.i [2023-11-17 11:34:38,972 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/12a5095c5/9725955dfdb748dc9c171286c76fed0b/FLAGea473f554 [2023-11-17 11:34:38,993 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/12a5095c5/9725955dfdb748dc9c171286c76fed0b [2023-11-17 11:34:38,995 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-17 11:34:38,996 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-11-17 11:34:38,997 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-17 11:34:38,997 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-17 11:34:39,003 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-17 11:34:39,004 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 11:34:38" (1/1) ... [2023-11-17 11:34:39,005 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c64087f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:34:39, skipping insertion in model container [2023-11-17 11:34:39,005 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 11:34:38" (1/1) ... [2023-11-17 11:34:39,049 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-17 11:34:39,180 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_20-publish-regression_true.i[1095,1108] [2023-11-17 11:34:39,320 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-17 11:34:39,335 INFO L202 MainTranslator]: Completed pre-run [2023-11-17 11:34:39,348 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_20-publish-regression_true.i[1095,1108] [2023-11-17 11:34:39,389 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-17 11:34:39,430 INFO L206 MainTranslator]: Completed translation [2023-11-17 11:34:39,432 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:34:39 WrapperNode [2023-11-17 11:34:39,432 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-17 11:34:39,433 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-17 11:34:39,434 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-17 11:34:39,434 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-17 11:34:39,440 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:34:39" (1/1) ... [2023-11-17 11:34:39,468 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:34:39" (1/1) ... [2023-11-17 11:34:39,500 INFO L138 Inliner]: procedures = 163, calls = 35, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 86 [2023-11-17 11:34:39,501 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-17 11:34:39,501 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-17 11:34:39,502 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-17 11:34:39,502 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-17 11:34:39,510 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:34:39" (1/1) ... [2023-11-17 11:34:39,510 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:34:39" (1/1) ... [2023-11-17 11:34:39,517 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:34:39" (1/1) ... [2023-11-17 11:34:39,517 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:34:39" (1/1) ... [2023-11-17 11:34:39,531 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:34:39" (1/1) ... [2023-11-17 11:34:39,532 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:34:39" (1/1) ... [2023-11-17 11:34:39,534 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:34:39" (1/1) ... [2023-11-17 11:34:39,535 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:34:39" (1/1) ... [2023-11-17 11:34:39,536 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-17 11:34:39,537 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-17 11:34:39,537 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-17 11:34:39,537 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-17 11:34:39,538 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:34:39" (1/1) ... [2023-11-17 11:34:39,545 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-17 11:34:39,555 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-17 11:34:39,575 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 11:34:39,597 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 11:34:39,607 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-17 11:34:39,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-17 11:34:39,608 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-17 11:34:39,608 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-17 11:34:39,608 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-17 11:34:39,608 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-11-17 11:34:39,609 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-11-17 11:34:39,609 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-17 11:34:39,610 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-17 11:34:39,610 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-17 11:34:39,610 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-17 11:34:39,610 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-17 11:34:39,611 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 11:34:39,731 INFO L239 CfgBuilder]: Building ICFG [2023-11-17 11:34:39,734 INFO L265 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-17 11:34:39,872 INFO L280 CfgBuilder]: Performing block encoding [2023-11-17 11:34:39,976 INFO L302 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-17 11:34:39,976 INFO L307 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-17 11:34:39,977 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 11:34:39 BoogieIcfgContainer [2023-11-17 11:34:39,978 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-17 11:34:39,993 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-17 11:34:40,003 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-17 11:34:40,006 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-17 11:34:40,006 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 11:34:38" (1/3) ... [2023-11-17 11:34:40,007 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4451fc78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 11:34:40, skipping insertion in model container [2023-11-17 11:34:40,007 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:34:39" (2/3) ... [2023-11-17 11:34:40,007 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4451fc78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 11:34:40, skipping insertion in model container [2023-11-17 11:34:40,008 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 11:34:39" (3/3) ... [2023-11-17 11:34:40,009 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_20-publish-regression_true.i [2023-11-17 11:34:40,026 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-17 11:34:40,026 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2023-11-17 11:34:40,026 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-17 11:34:40,077 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-11-17 11:34:40,109 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 39 places, 38 transitions, 83 flow [2023-11-17 11:34:40,138 INFO L124 PetriNetUnfolderBase]: 3/37 cut-off events. [2023-11-17 11:34:40,138 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-17 11:34:40,142 INFO L83 FinitePrefix]: Finished finitePrefix Result has 42 conditions, 37 events. 3/37 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 28 event pairs, 0 based on Foata normal form. 0/31 useless extension candidates. Maximal degree in co-relation 28. Up to 2 conditions per place. [2023-11-17 11:34:40,142 INFO L82 GeneralOperation]: Start removeDead. Operand has 39 places, 38 transitions, 83 flow [2023-11-17 11:34:40,144 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 36 places, 35 transitions, 73 flow [2023-11-17 11:34:40,147 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-11-17 11:34:40,165 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 36 places, 35 transitions, 73 flow [2023-11-17 11:34:40,170 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 36 places, 35 transitions, 73 flow [2023-11-17 11:34:40,170 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 36 places, 35 transitions, 73 flow [2023-11-17 11:34:40,188 INFO L124 PetriNetUnfolderBase]: 3/35 cut-off events. [2023-11-17 11:34:40,189 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-17 11:34:40,190 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39 conditions, 35 events. 3/35 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 28 event pairs, 0 based on Foata normal form. 0/29 useless extension candidates. Maximal degree in co-relation 28. Up to 2 conditions per place. [2023-11-17 11:34:40,191 INFO L119 LiptonReduction]: Number of co-enabled transitions 360 [2023-11-17 11:34:41,596 INFO L134 LiptonReduction]: Checked pairs total: 1813 [2023-11-17 11:34:41,596 INFO L136 LiptonReduction]: Total number of compositions: 39 [2023-11-17 11:34:41,618 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-17 11:34:41,624 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;@2e5d9fff, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-17 11:34:41,625 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2023-11-17 11:34:41,626 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-17 11:34:41,626 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-11-17 11:34:41,626 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-17 11:34:41,626 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 11:34:41,627 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-11-17 11:34:41,627 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-11-17 11:34:41,631 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 11:34:41,632 INFO L85 PathProgramCache]: Analyzing trace with hash 299, now seen corresponding path program 1 times [2023-11-17 11:34:41,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 11:34:41,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105694054] [2023-11-17 11:34:41,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 11:34:41,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 11:34:41,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 11:34:41,753 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 11:34:41,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 11:34:41,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [105694054] [2023-11-17 11:34:41,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [105694054] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 11:34:41,755 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 11:34:41,755 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-11-17 11:34:41,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285321690] [2023-11-17 11:34:41,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 11:34:41,766 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-17 11:34:41,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 11:34:41,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-17 11:34:41,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-17 11:34:41,795 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 77 [2023-11-17 11:34:41,797 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 20 places, 18 transitions, 39 flow. Second operand has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 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 11:34:41,798 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 11:34:41,798 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 77 [2023-11-17 11:34:41,798 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 11:34:41,864 INFO L124 PetriNetUnfolderBase]: 36/87 cut-off events. [2023-11-17 11:34:41,864 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-17 11:34:41,866 INFO L83 FinitePrefix]: Finished finitePrefix Result has 179 conditions, 87 events. 36/87 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 219 event pairs, 36 based on Foata normal form. 0/72 useless extension candidates. Maximal degree in co-relation 170. Up to 88 conditions per place. [2023-11-17 11:34:41,868 INFO L140 encePairwiseOnDemand]: 74/77 looper letters, 15 selfloop transitions, 0 changer transitions 0/15 dead transitions. [2023-11-17 11:34:41,868 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 20 places, 15 transitions, 63 flow [2023-11-17 11:34:41,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 11:34:41,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-17 11:34:41,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 46 transitions. [2023-11-17 11:34:41,880 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.2987012987012987 [2023-11-17 11:34:41,880 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 46 transitions. [2023-11-17 11:34:41,881 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 46 transitions. [2023-11-17 11:34:41,882 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 11:34:41,884 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 46 transitions. [2023-11-17 11:34:41,886 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 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 11:34:41,892 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 77.0) internal successors, (231), 3 states have internal predecessors, (231), 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 11:34:41,893 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 77.0) internal successors, (231), 3 states have internal predecessors, (231), 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 11:34:41,894 INFO L175 Difference]: Start difference. First operand has 20 places, 18 transitions, 39 flow. Second operand 2 states and 46 transitions. [2023-11-17 11:34:41,896 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 20 places, 15 transitions, 63 flow [2023-11-17 11:34:41,898 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 19 places, 15 transitions, 62 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-17 11:34:41,900 INFO L231 Difference]: Finished difference. Result has 19 places, 15 transitions, 32 flow [2023-11-17 11:34:41,901 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=77, PETRI_DIFFERENCE_MINUEND_FLOW=32, PETRI_DIFFERENCE_MINUEND_PLACES=18, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=15, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=32, PETRI_PLACES=19, PETRI_TRANSITIONS=15} [2023-11-17 11:34:41,906 INFO L281 CegarLoopForPetriNet]: 20 programPoint places, -1 predicate places. [2023-11-17 11:34:41,907 INFO L495 AbstractCegarLoop]: Abstraction has has 19 places, 15 transitions, 32 flow [2023-11-17 11:34:41,908 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 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 11:34:41,908 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 11:34:41,908 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-11-17 11:34:41,908 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-17 11:34:41,908 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-11-17 11:34:41,909 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 11:34:41,909 INFO L85 PathProgramCache]: Analyzing trace with hash 9511756, now seen corresponding path program 1 times [2023-11-17 11:34:41,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 11:34:41,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352443459] [2023-11-17 11:34:41,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 11:34:41,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 11:34:41,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 11:34:42,138 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 11:34:42,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 11:34:42,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352443459] [2023-11-17 11:34:42,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1352443459] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 11:34:42,139 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 11:34:42,139 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-17 11:34:42,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796814984] [2023-11-17 11:34:42,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 11:34:42,141 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-17 11:34:42,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 11:34:42,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-17 11:34:42,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-17 11:34:42,143 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 77 [2023-11-17 11:34:42,143 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 19 places, 15 transitions, 32 flow. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 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 11:34:42,143 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 11:34:42,143 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 77 [2023-11-17 11:34:42,143 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 11:34:42,204 INFO L124 PetriNetUnfolderBase]: 32/88 cut-off events. [2023-11-17 11:34:42,204 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-17 11:34:42,205 INFO L83 FinitePrefix]: Finished finitePrefix Result has 181 conditions, 88 events. 32/88 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 267 event pairs, 18 based on Foata normal form. 2/79 useless extension candidates. Maximal degree in co-relation 178. Up to 57 conditions per place. [2023-11-17 11:34:42,206 INFO L140 encePairwiseOnDemand]: 72/77 looper letters, 16 selfloop transitions, 4 changer transitions 1/21 dead transitions. [2023-11-17 11:34:42,206 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 21 places, 21 transitions, 86 flow [2023-11-17 11:34:42,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-17 11:34:42,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-17 11:34:42,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 65 transitions. [2023-11-17 11:34:42,209 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.2813852813852814 [2023-11-17 11:34:42,209 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 65 transitions. [2023-11-17 11:34:42,210 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 65 transitions. [2023-11-17 11:34:42,210 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 11:34:42,210 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 65 transitions. [2023-11-17 11:34:42,211 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 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 11:34:42,212 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 77.0) internal successors, (308), 4 states have internal predecessors, (308), 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 11:34:42,213 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 77.0) internal successors, (308), 4 states have internal predecessors, (308), 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 11:34:42,213 INFO L175 Difference]: Start difference. First operand has 19 places, 15 transitions, 32 flow. Second operand 3 states and 65 transitions. [2023-11-17 11:34:42,213 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 21 places, 21 transitions, 86 flow [2023-11-17 11:34:42,213 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 21 places, 21 transitions, 86 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-17 11:34:42,214 INFO L231 Difference]: Finished difference. Result has 23 places, 16 transitions, 54 flow [2023-11-17 11:34:42,214 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=77, PETRI_DIFFERENCE_MINUEND_FLOW=32, PETRI_DIFFERENCE_MINUEND_PLACES=19, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=15, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=54, PETRI_PLACES=23, PETRI_TRANSITIONS=16} [2023-11-17 11:34:42,215 INFO L281 CegarLoopForPetriNet]: 20 programPoint places, 3 predicate places. [2023-11-17 11:34:42,215 INFO L495 AbstractCegarLoop]: Abstraction has has 23 places, 16 transitions, 54 flow [2023-11-17 11:34:42,216 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 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 11:34:42,216 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 11:34:42,216 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-17 11:34:42,216 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-17 11:34:42,217 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-11-17 11:34:42,219 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 11:34:42,220 INFO L85 PathProgramCache]: Analyzing trace with hash -103285945, now seen corresponding path program 1 times [2023-11-17 11:34:42,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 11:34:42,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587145978] [2023-11-17 11:34:42,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 11:34:42,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 11:34:42,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 11:34:42,297 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 11:34:42,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 11:34:42,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1587145978] [2023-11-17 11:34:42,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1587145978] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 11:34:42,298 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 11:34:42,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-17 11:34:42,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833096605] [2023-11-17 11:34:42,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 11:34:42,299 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-17 11:34:42,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 11:34:42,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-17 11:34:42,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-17 11:34:42,300 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 77 [2023-11-17 11:34:42,300 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 23 places, 16 transitions, 54 flow. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 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 11:34:42,300 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 11:34:42,300 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 77 [2023-11-17 11:34:42,300 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 11:34:42,366 INFO L124 PetriNetUnfolderBase]: 18/66 cut-off events. [2023-11-17 11:34:42,367 INFO L125 PetriNetUnfolderBase]: For 13/13 co-relation queries the response was YES. [2023-11-17 11:34:42,367 INFO L83 FinitePrefix]: Finished finitePrefix Result has 168 conditions, 66 events. 18/66 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 197 event pairs, 5 based on Foata normal form. 5/65 useless extension candidates. Maximal degree in co-relation 163. Up to 36 conditions per place. [2023-11-17 11:34:42,368 INFO L140 encePairwiseOnDemand]: 71/77 looper letters, 13 selfloop transitions, 5 changer transitions 5/23 dead transitions. [2023-11-17 11:34:42,368 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 23 transitions, 120 flow [2023-11-17 11:34:42,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-17 11:34:42,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-17 11:34:42,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 66 transitions. [2023-11-17 11:34:42,371 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.2857142857142857 [2023-11-17 11:34:42,371 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 66 transitions. [2023-11-17 11:34:42,371 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 66 transitions. [2023-11-17 11:34:42,372 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 11:34:42,372 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 66 transitions. [2023-11-17 11:34:42,373 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 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 11:34:42,374 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 77.0) internal successors, (308), 4 states have internal predecessors, (308), 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 11:34:42,374 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 77.0) internal successors, (308), 4 states have internal predecessors, (308), 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 11:34:42,374 INFO L175 Difference]: Start difference. First operand has 23 places, 16 transitions, 54 flow. Second operand 3 states and 66 transitions. [2023-11-17 11:34:42,374 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 23 transitions, 120 flow [2023-11-17 11:34:42,375 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 23 transitions, 110 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-17 11:34:42,376 INFO L231 Difference]: Finished difference. Result has 24 places, 16 transitions, 63 flow [2023-11-17 11:34:42,376 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=77, PETRI_DIFFERENCE_MINUEND_FLOW=46, PETRI_DIFFERENCE_MINUEND_PLACES=21, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=63, PETRI_PLACES=24, PETRI_TRANSITIONS=16} [2023-11-17 11:34:42,377 INFO L281 CegarLoopForPetriNet]: 20 programPoint places, 4 predicate places. [2023-11-17 11:34:42,377 INFO L495 AbstractCegarLoop]: Abstraction has has 24 places, 16 transitions, 63 flow [2023-11-17 11:34:42,378 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 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 11:34:42,378 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 11:34:42,378 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-17 11:34:42,378 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-17 11:34:42,378 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-11-17 11:34:42,379 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 11:34:42,379 INFO L85 PathProgramCache]: Analyzing trace with hash -106313062, now seen corresponding path program 1 times [2023-11-17 11:34:42,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 11:34:42,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1434553712] [2023-11-17 11:34:42,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 11:34:42,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 11:34:42,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 11:34:42,443 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 11:34:42,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 11:34:42,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1434553712] [2023-11-17 11:34:42,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1434553712] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 11:34:42,444 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 11:34:42,444 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-17 11:34:42,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784735260] [2023-11-17 11:34:42,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 11:34:42,445 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-17 11:34:42,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 11:34:42,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-17 11:34:42,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-17 11:34:42,446 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 77 [2023-11-17 11:34:42,446 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 16 transitions, 63 flow. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 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 11:34:42,446 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 11:34:42,446 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 77 [2023-11-17 11:34:42,446 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 11:34:42,475 INFO L124 PetriNetUnfolderBase]: 6/36 cut-off events. [2023-11-17 11:34:42,475 INFO L125 PetriNetUnfolderBase]: For 12/12 co-relation queries the response was YES. [2023-11-17 11:34:42,475 INFO L83 FinitePrefix]: Finished finitePrefix Result has 116 conditions, 36 events. 6/36 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 65 event pairs, 5 based on Foata normal form. 0/36 useless extension candidates. Maximal degree in co-relation 110. Up to 25 conditions per place. [2023-11-17 11:34:42,475 INFO L140 encePairwiseOnDemand]: 73/77 looper letters, 10 selfloop transitions, 2 changer transitions 3/15 dead transitions. [2023-11-17 11:34:42,476 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 15 transitions, 92 flow [2023-11-17 11:34:42,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-17 11:34:42,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-17 11:34:42,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 59 transitions. [2023-11-17 11:34:42,477 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.2554112554112554 [2023-11-17 11:34:42,477 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 59 transitions. [2023-11-17 11:34:42,477 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 59 transitions. [2023-11-17 11:34:42,477 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 11:34:42,477 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 59 transitions. [2023-11-17 11:34:42,478 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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 11:34:42,479 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 77.0) internal successors, (308), 4 states have internal predecessors, (308), 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 11:34:42,479 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 77.0) internal successors, (308), 4 states have internal predecessors, (308), 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 11:34:42,479 INFO L175 Difference]: Start difference. First operand has 24 places, 16 transitions, 63 flow. Second operand 3 states and 59 transitions. [2023-11-17 11:34:42,479 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 15 transitions, 92 flow [2023-11-17 11:34:42,480 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 15 transitions, 84 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-11-17 11:34:42,480 INFO L231 Difference]: Finished difference. Result has 24 places, 12 transitions, 46 flow [2023-11-17 11:34:42,480 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=77, PETRI_DIFFERENCE_MINUEND_FLOW=50, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=14, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=46, PETRI_PLACES=24, PETRI_TRANSITIONS=12} [2023-11-17 11:34:42,481 INFO L281 CegarLoopForPetriNet]: 20 programPoint places, 4 predicate places. [2023-11-17 11:34:42,481 INFO L495 AbstractCegarLoop]: Abstraction has has 24 places, 12 transitions, 46 flow [2023-11-17 11:34:42,481 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 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 11:34:42,481 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 11:34:42,482 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 11:34:42,482 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-17 11:34:42,482 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-11-17 11:34:42,482 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 11:34:42,482 INFO L85 PathProgramCache]: Analyzing trace with hash 999262245, now seen corresponding path program 1 times [2023-11-17 11:34:42,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 11:34:42,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243539227] [2023-11-17 11:34:42,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 11:34:42,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 11:34:42,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 11:34:42,632 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 11:34:42,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 11:34:42,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243539227] [2023-11-17 11:34:42,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [243539227] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 11:34:42,632 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 11:34:42,633 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-17 11:34:42,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091954051] [2023-11-17 11:34:42,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 11:34:42,633 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-17 11:34:42,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 11:34:42,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-17 11:34:42,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-17 11:34:42,635 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 77 [2023-11-17 11:34:42,635 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 12 transitions, 46 flow. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 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 11:34:42,636 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 11:34:42,636 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 77 [2023-11-17 11:34:42,636 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 11:34:42,667 INFO L124 PetriNetUnfolderBase]: 0/9 cut-off events. [2023-11-17 11:34:42,667 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-11-17 11:34:42,667 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34 conditions, 9 events. 0/9 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 2 event pairs, 0 based on Foata normal form. 3/12 useless extension candidates. Maximal degree in co-relation 0. Up to 7 conditions per place. [2023-11-17 11:34:42,668 INFO L140 encePairwiseOnDemand]: 74/77 looper letters, 0 selfloop transitions, 0 changer transitions 9/9 dead transitions. [2023-11-17 11:34:42,671 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 22 places, 9 transitions, 54 flow [2023-11-17 11:34:42,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-17 11:34:42,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-17 11:34:42,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 66 transitions. [2023-11-17 11:34:42,680 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.21428571428571427 [2023-11-17 11:34:42,680 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 66 transitions. [2023-11-17 11:34:42,680 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 66 transitions. [2023-11-17 11:34:42,680 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 11:34:42,680 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 66 transitions. [2023-11-17 11:34:42,681 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 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 11:34:42,682 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 77.0) internal successors, (385), 5 states have internal predecessors, (385), 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 11:34:42,682 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 77.0) internal successors, (385), 5 states have internal predecessors, (385), 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 11:34:42,682 INFO L175 Difference]: Start difference. First operand has 24 places, 12 transitions, 46 flow. Second operand 4 states and 66 transitions. [2023-11-17 11:34:42,683 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 22 places, 9 transitions, 54 flow [2023-11-17 11:34:42,683 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 17 places, 9 transitions, 41 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-17 11:34:42,683 INFO L231 Difference]: Finished difference. Result has 17 places, 0 transitions, 0 flow [2023-11-17 11:34:42,684 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=77, PETRI_DIFFERENCE_MINUEND_FLOW=23, PETRI_DIFFERENCE_MINUEND_PLACES=14, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=9, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=9, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=17, PETRI_TRANSITIONS=0} [2023-11-17 11:34:42,686 INFO L281 CegarLoopForPetriNet]: 20 programPoint places, -3 predicate places. [2023-11-17 11:34:42,686 INFO L495 AbstractCegarLoop]: Abstraction has has 17 places, 0 transitions, 0 flow [2023-11-17 11:34:42,687 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 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 11:34:42,689 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2023-11-17 11:34:42,689 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining) [2023-11-17 11:34:42,690 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2023-11-17 11:34:42,690 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 5 remaining) [2023-11-17 11:34:42,690 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 5 remaining) [2023-11-17 11:34:42,690 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-17 11:34:42,690 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-11-17 11:34:42,696 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-17 11:34:42,697 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-17 11:34:42,704 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.11 11:34:42 BasicIcfg [2023-11-17 11:34:42,704 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-17 11:34:42,706 INFO L158 Benchmark]: Toolchain (without parser) took 3708.83ms. Allocated memory is still 290.5MB. Free memory was 242.9MB in the beginning and 162.8MB in the end (delta: 80.0MB). Peak memory consumption was 80.7MB. Max. memory is 8.0GB. [2023-11-17 11:34:42,706 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 175.1MB. Free memory is still 129.4MB. There was no memory consumed. Max. memory is 8.0GB. [2023-11-17 11:34:42,708 INFO L158 Benchmark]: CACSL2BoogieTranslator took 435.65ms. Allocated memory is still 290.5MB. Free memory was 242.9MB in the beginning and 223.7MB in the end (delta: 19.2MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. [2023-11-17 11:34:42,712 INFO L158 Benchmark]: Boogie Procedure Inliner took 67.50ms. Allocated memory is still 290.5MB. Free memory was 223.3MB in the beginning and 221.6MB in the end (delta: 1.8MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-11-17 11:34:42,714 INFO L158 Benchmark]: Boogie Preprocessor took 35.10ms. Allocated memory is still 290.5MB. Free memory was 221.2MB in the beginning and 219.8MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-11-17 11:34:42,715 INFO L158 Benchmark]: RCFGBuilder took 440.54ms. Allocated memory is still 290.5MB. Free memory was 219.8MB in the beginning and 196.8MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 8.0GB. [2023-11-17 11:34:42,715 INFO L158 Benchmark]: TraceAbstraction took 2711.39ms. Allocated memory is still 290.5MB. Free memory was 260.2MB in the beginning and 162.8MB in the end (delta: 97.4MB). Peak memory consumption was 96.9MB. Max. memory is 8.0GB. [2023-11-17 11:34:42,717 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 175.1MB. Free memory is still 129.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 435.65ms. Allocated memory is still 290.5MB. Free memory was 242.9MB in the beginning and 223.7MB in the end (delta: 19.2MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 67.50ms. Allocated memory is still 290.5MB. Free memory was 223.3MB in the beginning and 221.6MB in the end (delta: 1.8MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 35.10ms. Allocated memory is still 290.5MB. Free memory was 221.2MB in the beginning and 219.8MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 440.54ms. Allocated memory is still 290.5MB. Free memory was 219.8MB in the beginning and 196.8MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 8.0GB. * TraceAbstraction took 2711.39ms. Allocated memory is still 290.5MB. Free memory was 260.2MB in the beginning and 162.8MB in the end (delta: 97.4MB). Peak memory consumption was 96.9MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.4s, 36 PlacesBefore, 20 PlacesAfterwards, 35 TransitionsBefore, 18 TransitionsAfterwards, 360 CoEnabledTransitionPairs, 10 FixpointIterations, 6 TrivialSequentialCompositions, 26 ConcurrentSequentialCompositions, 1 TrivialYvCompositions, 5 ConcurrentYvCompositions, 1 ChoiceCompositions, 39 TotalNumberOfCompositions, 1813 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 801, independent: 584, independent conditional: 0, independent unconditional: 584, dependent: 217, dependent conditional: 0, dependent unconditional: 217, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 317, independent: 293, independent conditional: 0, independent unconditional: 293, dependent: 24, dependent conditional: 0, dependent unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 317, independent: 255, independent conditional: 0, independent unconditional: 255, dependent: 62, dependent conditional: 0, dependent unconditional: 62, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 62, independent: 38, independent conditional: 0, independent unconditional: 38, dependent: 24, dependent conditional: 0, dependent unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 105, independent: 45, independent conditional: 0, independent unconditional: 45, dependent: 60, dependent conditional: 0, dependent unconditional: 60, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 801, independent: 291, independent conditional: 0, independent unconditional: 291, dependent: 193, dependent conditional: 0, dependent unconditional: 193, unknown: 317, unknown conditional: 0, unknown unconditional: 317] , Statistics on independence cache: Total cache size (in pairs): 47, Positive cache size: 32, Positive conditional cache size: 0, Positive unconditional cache size: 32, Negative cache size: 15, Negative conditional cache size: 0, Negative unconditional cache size: 15, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 55 locations, 5 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2.6s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.5s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 17 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 17 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 110 IncrementalHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 0 mSDtfsCounter, 110 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=63occurred in iteration=3, InterpolantAutomatonStates: 15, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 27 NumberOfCodeBlocks, 27 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 22 ConstructedInterpolants, 0 QuantifiedInterpolants, 83 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-17 11:34:42,733 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...