/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-SemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_24-multiple-protecting_true.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-wip.dk.datarace-free-lbe-02cf818-m [2023-11-17 15:32:38,871 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-17 15:32:38,963 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 15:32:38,994 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-17 15:32:38,995 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-17 15:32:38,995 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-17 15:32:38,996 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-17 15:32:38,996 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-17 15:32:38,996 INFO L153 SettingsManager]: * Use SBE=true [2023-11-17 15:32:39,000 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-17 15:32:39,001 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-17 15:32:39,001 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-17 15:32:39,001 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-17 15:32:39,002 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-17 15:32:39,003 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-17 15:32:39,003 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-17 15:32:39,003 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-17 15:32:39,003 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-17 15:32:39,004 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-17 15:32:39,004 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-17 15:32:39,004 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-17 15:32:39,005 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-17 15:32:39,005 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-17 15:32:39,005 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-11-17 15:32:39,005 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-17 15:32:39,006 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-17 15:32:39,006 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-17 15:32:39,006 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-17 15:32:39,006 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-17 15:32:39,007 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-17 15:32:39,007 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-17 15:32:39,008 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-17 15:32:39,008 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-11-17 15:32:39,236 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-17 15:32:39,259 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-17 15:32:39,261 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-17 15:32:39,262 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-17 15:32:39,262 INFO L274 PluginConnector]: CDTParser initialized [2023-11-17 15:32:39,263 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_24-multiple-protecting_true.i [2023-11-17 15:32:40,410 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-17 15:32:40,688 INFO L384 CDTParser]: Found 1 translation units. [2023-11-17 15:32:40,693 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_24-multiple-protecting_true.i [2023-11-17 15:32:40,705 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/712f3e125/89ef26bc229b408eba4f293c778e61dd/FLAG385b2e8a1 [2023-11-17 15:32:40,720 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/712f3e125/89ef26bc229b408eba4f293c778e61dd [2023-11-17 15:32:40,722 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-17 15:32:40,723 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-11-17 15:32:40,724 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-17 15:32:40,724 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-17 15:32:40,728 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-17 15:32:40,729 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 03:32:40" (1/1) ... [2023-11-17 15:32:40,729 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65727add and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:32:40, skipping insertion in model container [2023-11-17 15:32:40,729 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 03:32:40" (1/1) ... [2023-11-17 15:32:40,772 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-17 15:32:40,906 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_24-multiple-protecting_true.i[1096,1109] [2023-11-17 15:32:41,079 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-17 15:32:41,096 INFO L202 MainTranslator]: Completed pre-run [2023-11-17 15:32:41,108 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_24-multiple-protecting_true.i[1096,1109] [2023-11-17 15:32:41,149 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-17 15:32:41,188 INFO L206 MainTranslator]: Completed translation [2023-11-17 15:32:41,189 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:32:41 WrapperNode [2023-11-17 15:32:41,189 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-17 15:32:41,190 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-17 15:32:41,190 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-17 15:32:41,190 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-17 15:32:41,197 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:32:41" (1/1) ... [2023-11-17 15:32:41,212 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:32:41" (1/1) ... [2023-11-17 15:32:41,234 INFO L138 Inliner]: procedures = 163, calls = 58, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 107 [2023-11-17 15:32:41,235 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-17 15:32:41,235 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-17 15:32:41,235 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-17 15:32:41,235 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-17 15:32:41,244 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:32:41" (1/1) ... [2023-11-17 15:32:41,244 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:32:41" (1/1) ... [2023-11-17 15:32:41,247 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:32:41" (1/1) ... [2023-11-17 15:32:41,248 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:32:41" (1/1) ... [2023-11-17 15:32:41,253 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:32:41" (1/1) ... [2023-11-17 15:32:41,255 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:32:41" (1/1) ... [2023-11-17 15:32:41,257 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:32:41" (1/1) ... [2023-11-17 15:32:41,258 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:32:41" (1/1) ... [2023-11-17 15:32:41,261 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-17 15:32:41,262 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-17 15:32:41,262 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-17 15:32:41,262 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-17 15:32:41,263 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:32:41" (1/1) ... [2023-11-17 15:32:41,271 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-17 15:32:41,283 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-17 15:32:41,298 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 15:32:41,300 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 15:32:41,320 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-17 15:32:41,320 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-17 15:32:41,320 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-17 15:32:41,320 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-17 15:32:41,321 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-17 15:32:41,321 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-11-17 15:32:41,321 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-11-17 15:32:41,321 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-17 15:32:41,322 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-17 15:32:41,322 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-17 15:32:41,322 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-17 15:32:41,322 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-17 15:32:41,324 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 15:32:41,440 INFO L239 CfgBuilder]: Building ICFG [2023-11-17 15:32:41,442 INFO L265 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-17 15:32:41,671 INFO L280 CfgBuilder]: Performing block encoding [2023-11-17 15:32:41,740 INFO L302 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-17 15:32:41,740 INFO L307 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-17 15:32:41,741 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 03:32:41 BoogieIcfgContainer [2023-11-17 15:32:41,742 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-17 15:32:41,744 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-17 15:32:41,745 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-17 15:32:41,748 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-17 15:32:41,748 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 03:32:40" (1/3) ... [2023-11-17 15:32:41,749 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c714a40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 03:32:41, skipping insertion in model container [2023-11-17 15:32:41,749 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:32:41" (2/3) ... [2023-11-17 15:32:41,750 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c714a40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 03:32:41, skipping insertion in model container [2023-11-17 15:32:41,750 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 03:32:41" (3/3) ... [2023-11-17 15:32:41,751 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_24-multiple-protecting_true.i [2023-11-17 15:32:41,766 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-17 15:32:41,766 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-11-17 15:32:41,766 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-17 15:32:41,852 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-11-17 15:32:41,906 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 151 places, 151 transitions, 309 flow [2023-11-17 15:32:41,993 INFO L124 PetriNetUnfolderBase]: 4/150 cut-off events. [2023-11-17 15:32:41,993 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-17 15:32:41,999 INFO L83 FinitePrefix]: Finished finitePrefix Result has 155 conditions, 150 events. 4/150 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 127 event pairs, 0 based on Foata normal form. 0/142 useless extension candidates. Maximal degree in co-relation 106. Up to 2 conditions per place. [2023-11-17 15:32:42,000 INFO L82 GeneralOperation]: Start removeDead. Operand has 151 places, 151 transitions, 309 flow [2023-11-17 15:32:42,012 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 133 places, 132 transitions, 267 flow [2023-11-17 15:32:42,017 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-11-17 15:32:42,038 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 133 places, 132 transitions, 267 flow [2023-11-17 15:32:42,041 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 133 places, 132 transitions, 267 flow [2023-11-17 15:32:42,041 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 133 places, 132 transitions, 267 flow [2023-11-17 15:32:42,083 INFO L124 PetriNetUnfolderBase]: 3/132 cut-off events. [2023-11-17 15:32:42,083 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-17 15:32:42,084 INFO L83 FinitePrefix]: Finished finitePrefix Result has 136 conditions, 132 events. 3/132 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 120 event pairs, 0 based on Foata normal form. 0/126 useless extension candidates. Maximal degree in co-relation 96. Up to 2 conditions per place. [2023-11-17 15:32:42,087 INFO L119 LiptonReduction]: Number of co-enabled transitions 4446 [2023-11-17 15:32:45,623 INFO L134 LiptonReduction]: Checked pairs total: 12094 [2023-11-17 15:32:45,624 INFO L136 LiptonReduction]: Total number of compositions: 118 [2023-11-17 15:32:45,638 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-17 15:32:45,643 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;@51f20abd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-17 15:32:45,643 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2023-11-17 15:32:45,647 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-17 15:32:45,647 INFO L124 PetriNetUnfolderBase]: 0/11 cut-off events. [2023-11-17 15:32:45,647 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-17 15:32:45,647 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 15:32:45,648 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-11-17 15:32:45,648 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-11-17 15:32:45,652 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 15:32:45,652 INFO L85 PathProgramCache]: Analyzing trace with hash 572020953, now seen corresponding path program 1 times [2023-11-17 15:32:45,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 15:32:45,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326295582] [2023-11-17 15:32:45,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 15:32:45,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 15:32:45,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 15:32:45,811 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 15:32:45,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 15:32:45,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326295582] [2023-11-17 15:32:45,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1326295582] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 15:32:45,812 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 15:32:45,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-17 15:32:45,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693162834] [2023-11-17 15:32:45,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 15:32:45,823 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-17 15:32:45,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 15:32:45,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-17 15:32:45,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-17 15:32:45,852 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 269 [2023-11-17 15:32:45,854 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 37 transitions, 77 flow. Second operand has 2 states, 2 states have (on average 119.5) internal successors, (239), 2 states have internal predecessors, (239), 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 15:32:45,855 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 15:32:45,855 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 269 [2023-11-17 15:32:45,856 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 15:32:45,987 INFO L124 PetriNetUnfolderBase]: 272/579 cut-off events. [2023-11-17 15:32:45,988 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-17 15:32:45,991 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1163 conditions, 579 events. 272/579 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 2236 event pairs, 272 based on Foata normal form. 0/528 useless extension candidates. Maximal degree in co-relation 1154. Up to 580 conditions per place. [2023-11-17 15:32:45,997 INFO L140 encePairwiseOnDemand]: 267/269 looper letters, 35 selfloop transitions, 0 changer transitions 0/35 dead transitions. [2023-11-17 15:32:45,997 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 35 transitions, 143 flow [2023-11-17 15:32:45,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 15:32:46,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-17 15:32:46,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 271 transitions. [2023-11-17 15:32:46,015 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5037174721189591 [2023-11-17 15:32:46,016 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 271 transitions. [2023-11-17 15:32:46,016 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 271 transitions. [2023-11-17 15:32:46,017 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 15:32:46,019 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 271 transitions. [2023-11-17 15:32:46,022 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 135.5) internal successors, (271), 2 states have internal predecessors, (271), 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 15:32:46,025 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 269.0) internal successors, (807), 3 states have internal predecessors, (807), 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 15:32:46,026 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 269.0) internal successors, (807), 3 states have internal predecessors, (807), 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 15:32:46,027 INFO L175 Difference]: Start difference. First operand has 39 places, 37 transitions, 77 flow. Second operand 2 states and 271 transitions. [2023-11-17 15:32:46,028 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 35 transitions, 143 flow [2023-11-17 15:32:46,030 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 35 transitions, 142 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-17 15:32:46,031 INFO L231 Difference]: Finished difference. Result has 39 places, 35 transitions, 72 flow [2023-11-17 15:32:46,033 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=269, PETRI_DIFFERENCE_MINUEND_FLOW=72, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=72, PETRI_PLACES=39, PETRI_TRANSITIONS=35} [2023-11-17 15:32:46,036 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 0 predicate places. [2023-11-17 15:32:46,036 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 35 transitions, 72 flow [2023-11-17 15:32:46,037 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 119.5) internal successors, (239), 2 states have internal predecessors, (239), 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 15:32:46,037 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 15:32:46,037 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-11-17 15:32:46,037 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-17 15:32:46,037 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-11-17 15:32:46,038 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 15:32:46,038 INFO L85 PathProgramCache]: Analyzing trace with hash 571975322, now seen corresponding path program 1 times [2023-11-17 15:32:46,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 15:32:46,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669162732] [2023-11-17 15:32:46,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 15:32:46,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 15:32:46,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 15:32:46,196 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 15:32:46,196 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 15:32:46,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [669162732] [2023-11-17 15:32:46,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [669162732] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 15:32:46,197 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 15:32:46,197 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-17 15:32:46,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720311926] [2023-11-17 15:32:46,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 15:32:46,199 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-17 15:32:46,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 15:32:46,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-17 15:32:46,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-17 15:32:46,202 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 269 [2023-11-17 15:32:46,203 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 35 transitions, 72 flow. Second operand has 3 states, 3 states have (on average 110.66666666666667) internal successors, (332), 3 states have internal predecessors, (332), 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 15:32:46,203 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 15:32:46,203 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 269 [2023-11-17 15:32:46,203 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 15:32:46,387 INFO L124 PetriNetUnfolderBase]: 405/871 cut-off events. [2023-11-17 15:32:46,388 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-17 15:32:46,389 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1747 conditions, 871 events. 405/871 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 4326 event pairs, 67 based on Foata normal form. 17/829 useless extension candidates. Maximal degree in co-relation 1744. Up to 472 conditions per place. [2023-11-17 15:32:46,391 INFO L140 encePairwiseOnDemand]: 261/269 looper letters, 57 selfloop transitions, 5 changer transitions 0/62 dead transitions. [2023-11-17 15:32:46,392 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 62 transitions, 250 flow [2023-11-17 15:32:46,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-17 15:32:46,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-17 15:32:46,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 392 transitions. [2023-11-17 15:32:46,394 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4857496902106567 [2023-11-17 15:32:46,394 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 392 transitions. [2023-11-17 15:32:46,394 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 392 transitions. [2023-11-17 15:32:46,395 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 15:32:46,395 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 392 transitions. [2023-11-17 15:32:46,396 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 130.66666666666666) internal successors, (392), 3 states have internal predecessors, (392), 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 15:32:46,399 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 269.0) internal successors, (1076), 4 states have internal predecessors, (1076), 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 15:32:46,400 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 269.0) internal successors, (1076), 4 states have internal predecessors, (1076), 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 15:32:46,401 INFO L175 Difference]: Start difference. First operand has 39 places, 35 transitions, 72 flow. Second operand 3 states and 392 transitions. [2023-11-17 15:32:46,401 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 62 transitions, 250 flow [2023-11-17 15:32:46,402 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 62 transitions, 250 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-17 15:32:46,403 INFO L231 Difference]: Finished difference. Result has 43 places, 38 transitions, 110 flow [2023-11-17 15:32:46,403 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=269, PETRI_DIFFERENCE_MINUEND_FLOW=72, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=110, PETRI_PLACES=43, PETRI_TRANSITIONS=38} [2023-11-17 15:32:46,404 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 4 predicate places. [2023-11-17 15:32:46,404 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 38 transitions, 110 flow [2023-11-17 15:32:46,404 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 110.66666666666667) internal successors, (332), 3 states have internal predecessors, (332), 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 15:32:46,405 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 15:32:46,405 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 15:32:46,405 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-17 15:32:46,407 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-11-17 15:32:46,409 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 15:32:46,410 INFO L85 PathProgramCache]: Analyzing trace with hash 206389660, now seen corresponding path program 1 times [2023-11-17 15:32:46,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 15:32:46,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703492389] [2023-11-17 15:32:46,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 15:32:46,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 15:32:46,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 15:32:46,500 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 15:32:46,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 15:32:46,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703492389] [2023-11-17 15:32:46,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [703492389] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 15:32:46,501 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 15:32:46,501 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-17 15:32:46,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547026434] [2023-11-17 15:32:46,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 15:32:46,501 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-17 15:32:46,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 15:32:46,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-17 15:32:46,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-17 15:32:46,503 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 269 [2023-11-17 15:32:46,503 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 38 transitions, 110 flow. Second operand has 3 states, 3 states have (on average 113.66666666666667) internal successors, (341), 3 states have internal predecessors, (341), 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 15:32:46,503 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 15:32:46,503 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 269 [2023-11-17 15:32:46,503 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 15:32:46,677 INFO L124 PetriNetUnfolderBase]: 438/950 cut-off events. [2023-11-17 15:32:46,677 INFO L125 PetriNetUnfolderBase]: For 184/184 co-relation queries the response was YES. [2023-11-17 15:32:46,680 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2131 conditions, 950 events. 438/950 cut-off events. For 184/184 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 4770 event pairs, 237 based on Foata normal form. 6/922 useless extension candidates. Maximal degree in co-relation 2126. Up to 809 conditions per place. [2023-11-17 15:32:46,684 INFO L140 encePairwiseOnDemand]: 257/269 looper letters, 59 selfloop transitions, 12 changer transitions 0/71 dead transitions. [2023-11-17 15:32:46,684 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 71 transitions, 344 flow [2023-11-17 15:32:46,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-17 15:32:46,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-17 15:32:46,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 401 transitions. [2023-11-17 15:32:46,686 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4969021065675341 [2023-11-17 15:32:46,686 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 401 transitions. [2023-11-17 15:32:46,686 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 401 transitions. [2023-11-17 15:32:46,686 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 15:32:46,686 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 401 transitions. [2023-11-17 15:32:46,687 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 133.66666666666666) internal successors, (401), 3 states have internal predecessors, (401), 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 15:32:46,689 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 269.0) internal successors, (1076), 4 states have internal predecessors, (1076), 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 15:32:46,690 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 269.0) internal successors, (1076), 4 states have internal predecessors, (1076), 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 15:32:46,690 INFO L175 Difference]: Start difference. First operand has 43 places, 38 transitions, 110 flow. Second operand 3 states and 401 transitions. [2023-11-17 15:32:46,690 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 71 transitions, 344 flow [2023-11-17 15:32:46,694 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 71 transitions, 326 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-17 15:32:46,696 INFO L231 Difference]: Finished difference. Result has 44 places, 48 transitions, 176 flow [2023-11-17 15:32:46,696 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=269, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=176, PETRI_PLACES=44, PETRI_TRANSITIONS=48} [2023-11-17 15:32:46,697 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 5 predicate places. [2023-11-17 15:32:46,698 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 48 transitions, 176 flow [2023-11-17 15:32:46,698 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 113.66666666666667) internal successors, (341), 3 states have internal predecessors, (341), 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 15:32:46,698 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 15:32:46,699 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 15:32:46,699 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-17 15:32:46,699 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-11-17 15:32:46,699 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 15:32:46,700 INFO L85 PathProgramCache]: Analyzing trace with hash -2064845719, now seen corresponding path program 1 times [2023-11-17 15:32:46,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 15:32:46,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617734673] [2023-11-17 15:32:46,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 15:32:46,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 15:32:46,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 15:32:46,892 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 15:32:46,893 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 15:32:46,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [617734673] [2023-11-17 15:32:46,894 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [617734673] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 15:32:46,894 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 15:32:46,894 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-17 15:32:46,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166681075] [2023-11-17 15:32:46,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 15:32:46,894 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-17 15:32:46,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 15:32:46,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-17 15:32:46,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-17 15:32:46,897 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 269 [2023-11-17 15:32:46,898 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 48 transitions, 176 flow. Second operand has 4 states, 4 states have (on average 107.25) internal successors, (429), 4 states have internal predecessors, (429), 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 15:32:46,898 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 15:32:46,899 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 269 [2023-11-17 15:32:46,899 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 15:32:47,018 INFO L124 PetriNetUnfolderBase]: 165/407 cut-off events. [2023-11-17 15:32:47,018 INFO L125 PetriNetUnfolderBase]: For 98/98 co-relation queries the response was YES. [2023-11-17 15:32:47,019 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1048 conditions, 407 events. 165/407 cut-off events. For 98/98 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1781 event pairs, 41 based on Foata normal form. 13/395 useless extension candidates. Maximal degree in co-relation 1042. Up to 285 conditions per place. [2023-11-17 15:32:47,021 INFO L140 encePairwiseOnDemand]: 263/269 looper letters, 52 selfloop transitions, 7 changer transitions 3/62 dead transitions. [2023-11-17 15:32:47,021 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 62 transitions, 327 flow [2023-11-17 15:32:47,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-17 15:32:47,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-17 15:32:47,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 479 transitions. [2023-11-17 15:32:47,023 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4451672862453532 [2023-11-17 15:32:47,023 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 479 transitions. [2023-11-17 15:32:47,023 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 479 transitions. [2023-11-17 15:32:47,023 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 15:32:47,023 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 479 transitions. [2023-11-17 15:32:47,024 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 119.75) internal successors, (479), 4 states have internal predecessors, (479), 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 15:32:47,026 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 269.0) internal successors, (1345), 5 states have internal predecessors, (1345), 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 15:32:47,027 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 269.0) internal successors, (1345), 5 states have internal predecessors, (1345), 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 15:32:47,027 INFO L175 Difference]: Start difference. First operand has 44 places, 48 transitions, 176 flow. Second operand 4 states and 479 transitions. [2023-11-17 15:32:47,027 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 62 transitions, 327 flow [2023-11-17 15:32:47,029 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 62 transitions, 312 flow, removed 4 selfloop flow, removed 1 redundant places. [2023-11-17 15:32:47,030 INFO L231 Difference]: Finished difference. Result has 46 places, 40 transitions, 148 flow [2023-11-17 15:32:47,031 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=269, PETRI_DIFFERENCE_MINUEND_FLOW=122, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=148, PETRI_PLACES=46, PETRI_TRANSITIONS=40} [2023-11-17 15:32:47,031 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 7 predicate places. [2023-11-17 15:32:47,032 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 40 transitions, 148 flow [2023-11-17 15:32:47,032 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 107.25) internal successors, (429), 4 states have internal predecessors, (429), 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 15:32:47,032 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 15:32:47,032 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 15:32:47,032 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-17 15:32:47,033 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-11-17 15:32:47,033 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 15:32:47,033 INFO L85 PathProgramCache]: Analyzing trace with hash -77366371, now seen corresponding path program 1 times [2023-11-17 15:32:47,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 15:32:47,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754943489] [2023-11-17 15:32:47,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 15:32:47,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 15:32:47,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 15:32:47,086 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 15:32:47,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 15:32:47,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1754943489] [2023-11-17 15:32:47,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1754943489] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 15:32:47,087 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 15:32:47,087 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-17 15:32:47,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102946176] [2023-11-17 15:32:47,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 15:32:47,087 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-17 15:32:47,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 15:32:47,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-17 15:32:47,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-17 15:32:47,089 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 269 [2023-11-17 15:32:47,089 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 40 transitions, 148 flow. Second operand has 3 states, 3 states have (on average 115.0) internal successors, (345), 3 states have internal predecessors, (345), 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 15:32:47,089 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 15:32:47,089 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 269 [2023-11-17 15:32:47,089 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 15:32:47,187 INFO L124 PetriNetUnfolderBase]: 174/436 cut-off events. [2023-11-17 15:32:47,187 INFO L125 PetriNetUnfolderBase]: For 118/118 co-relation queries the response was YES. [2023-11-17 15:32:47,188 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1182 conditions, 436 events. 174/436 cut-off events. For 118/118 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1834 event pairs, 59 based on Foata normal form. 0/415 useless extension candidates. Maximal degree in co-relation 1175. Up to 255 conditions per place. [2023-11-17 15:32:47,190 INFO L140 encePairwiseOnDemand]: 264/269 looper letters, 50 selfloop transitions, 2 changer transitions 9/61 dead transitions. [2023-11-17 15:32:47,190 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 61 transitions, 347 flow [2023-11-17 15:32:47,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-17 15:32:47,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-17 15:32:47,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 388 transitions. [2023-11-17 15:32:47,192 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48079306071871125 [2023-11-17 15:32:47,192 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 388 transitions. [2023-11-17 15:32:47,192 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 388 transitions. [2023-11-17 15:32:47,192 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 15:32:47,192 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 388 transitions. [2023-11-17 15:32:47,193 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 129.33333333333334) internal successors, (388), 3 states have internal predecessors, (388), 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 15:32:47,195 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 269.0) internal successors, (1076), 4 states have internal predecessors, (1076), 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 15:32:47,196 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 269.0) internal successors, (1076), 4 states have internal predecessors, (1076), 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 15:32:47,196 INFO L175 Difference]: Start difference. First operand has 46 places, 40 transitions, 148 flow. Second operand 3 states and 388 transitions. [2023-11-17 15:32:47,196 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 61 transitions, 347 flow [2023-11-17 15:32:47,197 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 61 transitions, 346 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-17 15:32:47,198 INFO L231 Difference]: Finished difference. Result has 49 places, 40 transitions, 161 flow [2023-11-17 15:32:47,199 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=269, PETRI_DIFFERENCE_MINUEND_FLOW=147, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=161, PETRI_PLACES=49, PETRI_TRANSITIONS=40} [2023-11-17 15:32:47,199 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 10 predicate places. [2023-11-17 15:32:47,199 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 40 transitions, 161 flow [2023-11-17 15:32:47,200 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 115.0) internal successors, (345), 3 states have internal predecessors, (345), 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 15:32:47,200 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 15:32:47,200 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 15:32:47,200 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-17 15:32:47,200 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-11-17 15:32:47,201 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 15:32:47,201 INFO L85 PathProgramCache]: Analyzing trace with hash -1761649476, now seen corresponding path program 1 times [2023-11-17 15:32:47,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 15:32:47,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410782228] [2023-11-17 15:32:47,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 15:32:47,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 15:32:47,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 15:32:47,354 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 15:32:47,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 15:32:47,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1410782228] [2023-11-17 15:32:47,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1410782228] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 15:32:47,355 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 15:32:47,355 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-17 15:32:47,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739653067] [2023-11-17 15:32:47,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 15:32:47,355 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-17 15:32:47,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 15:32:47,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-17 15:32:47,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-17 15:32:47,357 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 269 [2023-11-17 15:32:47,358 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 40 transitions, 161 flow. Second operand has 5 states, 5 states have (on average 110.6) internal successors, (553), 5 states have internal predecessors, (553), 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 15:32:47,358 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 15:32:47,358 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 269 [2023-11-17 15:32:47,358 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 15:32:47,463 INFO L124 PetriNetUnfolderBase]: 131/353 cut-off events. [2023-11-17 15:32:47,463 INFO L125 PetriNetUnfolderBase]: For 144/144 co-relation queries the response was YES. [2023-11-17 15:32:47,464 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1008 conditions, 353 events. 131/353 cut-off events. For 144/144 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1418 event pairs, 116 based on Foata normal form. 11/364 useless extension candidates. Maximal degree in co-relation 1000. Up to 332 conditions per place. [2023-11-17 15:32:47,465 INFO L140 encePairwiseOnDemand]: 263/269 looper letters, 37 selfloop transitions, 4 changer transitions 0/41 dead transitions. [2023-11-17 15:32:47,466 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 41 transitions, 243 flow [2023-11-17 15:32:47,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-17 15:32:47,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-17 15:32:47,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 577 transitions. [2023-11-17 15:32:47,468 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.428996282527881 [2023-11-17 15:32:47,468 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 577 transitions. [2023-11-17 15:32:47,468 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 577 transitions. [2023-11-17 15:32:47,468 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 15:32:47,469 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 577 transitions. [2023-11-17 15:32:47,470 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 115.4) internal successors, (577), 5 states have internal predecessors, (577), 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 15:32:47,472 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 269.0) internal successors, (1614), 6 states have internal predecessors, (1614), 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 15:32:47,473 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 269.0) internal successors, (1614), 6 states have internal predecessors, (1614), 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 15:32:47,473 INFO L175 Difference]: Start difference. First operand has 49 places, 40 transitions, 161 flow. Second operand 5 states and 577 transitions. [2023-11-17 15:32:47,473 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 41 transitions, 243 flow [2023-11-17 15:32:47,474 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 41 transitions, 239 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-17 15:32:47,475 INFO L231 Difference]: Finished difference. Result has 51 places, 39 transitions, 166 flow [2023-11-17 15:32:47,475 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=269, PETRI_DIFFERENCE_MINUEND_FLOW=153, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=166, PETRI_PLACES=51, PETRI_TRANSITIONS=39} [2023-11-17 15:32:47,476 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 12 predicate places. [2023-11-17 15:32:47,476 INFO L495 AbstractCegarLoop]: Abstraction has has 51 places, 39 transitions, 166 flow [2023-11-17 15:32:47,477 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 110.6) internal successors, (553), 5 states have internal predecessors, (553), 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 15:32:47,477 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 15:32:47,477 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 15:32:47,477 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-17 15:32:47,477 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-11-17 15:32:47,478 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 15:32:47,478 INFO L85 PathProgramCache]: Analyzing trace with hash -853166681, now seen corresponding path program 1 times [2023-11-17 15:32:47,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 15:32:47,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895033652] [2023-11-17 15:32:47,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 15:32:47,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 15:32:47,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 15:32:47,535 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 15:32:47,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 15:32:47,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [895033652] [2023-11-17 15:32:47,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [895033652] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 15:32:47,536 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 15:32:47,536 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-17 15:32:47,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6786914] [2023-11-17 15:32:47,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 15:32:47,536 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-17 15:32:47,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 15:32:47,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-17 15:32:47,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-17 15:32:47,537 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 269 [2023-11-17 15:32:47,538 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 39 transitions, 166 flow. Second operand has 3 states, 3 states have (on average 117.33333333333333) internal successors, (352), 3 states have internal predecessors, (352), 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 15:32:47,538 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 15:32:47,538 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 269 [2023-11-17 15:32:47,538 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 15:32:47,627 INFO L124 PetriNetUnfolderBase]: 54/243 cut-off events. [2023-11-17 15:32:47,628 INFO L125 PetriNetUnfolderBase]: For 111/111 co-relation queries the response was YES. [2023-11-17 15:32:47,628 INFO L83 FinitePrefix]: Finished finitePrefix Result has 717 conditions, 243 events. 54/243 cut-off events. For 111/111 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1015 event pairs, 19 based on Foata normal form. 47/290 useless extension candidates. Maximal degree in co-relation 708. Up to 131 conditions per place. [2023-11-17 15:32:47,629 INFO L140 encePairwiseOnDemand]: 251/269 looper letters, 29 selfloop transitions, 20 changer transitions 8/57 dead transitions. [2023-11-17 15:32:47,629 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 57 transitions, 364 flow [2023-11-17 15:32:47,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-17 15:32:47,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-17 15:32:47,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 390 transitions. [2023-11-17 15:32:47,631 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.483271375464684 [2023-11-17 15:32:47,631 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 390 transitions. [2023-11-17 15:32:47,631 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 390 transitions. [2023-11-17 15:32:47,631 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 15:32:47,631 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 390 transitions. [2023-11-17 15:32:47,632 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 130.0) internal successors, (390), 3 states have internal predecessors, (390), 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 15:32:47,633 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 269.0) internal successors, (1076), 4 states have internal predecessors, (1076), 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 15:32:47,634 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 269.0) internal successors, (1076), 4 states have internal predecessors, (1076), 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 15:32:47,634 INFO L175 Difference]: Start difference. First operand has 51 places, 39 transitions, 166 flow. Second operand 3 states and 390 transitions. [2023-11-17 15:32:47,634 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 57 transitions, 364 flow [2023-11-17 15:32:47,635 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 57 transitions, 348 flow, removed 4 selfloop flow, removed 4 redundant places. [2023-11-17 15:32:47,636 INFO L231 Difference]: Finished difference. Result has 50 places, 43 transitions, 248 flow [2023-11-17 15:32:47,636 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=269, PETRI_DIFFERENCE_MINUEND_FLOW=152, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=248, PETRI_PLACES=50, PETRI_TRANSITIONS=43} [2023-11-17 15:32:47,637 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 11 predicate places. [2023-11-17 15:32:47,637 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 43 transitions, 248 flow [2023-11-17 15:32:47,637 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 117.33333333333333) internal successors, (352), 3 states have internal predecessors, (352), 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 15:32:47,637 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 15:32:47,637 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] [2023-11-17 15:32:47,637 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-17 15:32:47,638 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-11-17 15:32:47,638 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 15:32:47,638 INFO L85 PathProgramCache]: Analyzing trace with hash -618817442, now seen corresponding path program 1 times [2023-11-17 15:32:47,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 15:32:47,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953416734] [2023-11-17 15:32:47,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 15:32:47,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 15:32:47,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 15:32:47,833 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 15:32:47,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 15:32:47,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [953416734] [2023-11-17 15:32:47,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [953416734] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 15:32:47,834 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 15:32:47,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-17 15:32:47,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049312838] [2023-11-17 15:32:47,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 15:32:47,834 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-17 15:32:47,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 15:32:47,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-17 15:32:47,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-17 15:32:47,836 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 269 [2023-11-17 15:32:47,836 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 43 transitions, 248 flow. Second operand has 5 states, 5 states have (on average 103.0) internal successors, (515), 5 states have internal predecessors, (515), 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 15:32:47,836 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 15:32:47,836 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 269 [2023-11-17 15:32:47,837 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 15:32:47,909 INFO L124 PetriNetUnfolderBase]: 43/187 cut-off events. [2023-11-17 15:32:47,909 INFO L125 PetriNetUnfolderBase]: For 167/167 co-relation queries the response was YES. [2023-11-17 15:32:47,909 INFO L83 FinitePrefix]: Finished finitePrefix Result has 685 conditions, 187 events. 43/187 cut-off events. For 167/167 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 670 event pairs, 11 based on Foata normal form. 2/189 useless extension candidates. Maximal degree in co-relation 675. Up to 176 conditions per place. [2023-11-17 15:32:47,910 INFO L140 encePairwiseOnDemand]: 265/269 looper letters, 40 selfloop transitions, 4 changer transitions 6/50 dead transitions. [2023-11-17 15:32:47,910 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 50 transitions, 382 flow [2023-11-17 15:32:47,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-17 15:32:47,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-17 15:32:47,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 437 transitions. [2023-11-17 15:32:47,912 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40613382899628253 [2023-11-17 15:32:47,912 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 437 transitions. [2023-11-17 15:32:47,912 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 437 transitions. [2023-11-17 15:32:47,912 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 15:32:47,912 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 437 transitions. [2023-11-17 15:32:47,913 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 109.25) internal successors, (437), 4 states have internal predecessors, (437), 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 15:32:47,915 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 269.0) internal successors, (1345), 5 states have internal predecessors, (1345), 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 15:32:47,915 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 269.0) internal successors, (1345), 5 states have internal predecessors, (1345), 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 15:32:47,915 INFO L175 Difference]: Start difference. First operand has 50 places, 43 transitions, 248 flow. Second operand 4 states and 437 transitions. [2023-11-17 15:32:47,915 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 50 transitions, 382 flow [2023-11-17 15:32:47,916 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 50 transitions, 353 flow, removed 1 selfloop flow, removed 2 redundant places. [2023-11-17 15:32:47,917 INFO L231 Difference]: Finished difference. Result has 50 places, 37 transitions, 200 flow [2023-11-17 15:32:47,917 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=269, PETRI_DIFFERENCE_MINUEND_FLOW=217, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=200, PETRI_PLACES=50, PETRI_TRANSITIONS=37} [2023-11-17 15:32:47,918 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 11 predicate places. [2023-11-17 15:32:47,918 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 37 transitions, 200 flow [2023-11-17 15:32:47,918 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 103.0) internal successors, (515), 5 states have internal predecessors, (515), 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 15:32:47,919 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 15:32:47,919 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] [2023-11-17 15:32:47,919 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-17 15:32:47,919 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-11-17 15:32:47,919 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 15:32:47,919 INFO L85 PathProgramCache]: Analyzing trace with hash 92653457, now seen corresponding path program 1 times [2023-11-17 15:32:47,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 15:32:47,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [332077957] [2023-11-17 15:32:47,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 15:32:47,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 15:32:47,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 15:32:48,120 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 15:32:48,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 15:32:48,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [332077957] [2023-11-17 15:32:48,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [332077957] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 15:32:48,121 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 15:32:48,121 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-17 15:32:48,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967738229] [2023-11-17 15:32:48,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 15:32:48,122 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-17 15:32:48,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 15:32:48,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-17 15:32:48,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-17 15:32:48,123 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 269 [2023-11-17 15:32:48,124 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 37 transitions, 200 flow. Second operand has 6 states, 6 states have (on average 103.0) internal successors, (618), 6 states have internal predecessors, (618), 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 15:32:48,124 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 15:32:48,124 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 269 [2023-11-17 15:32:48,124 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 15:32:48,180 INFO L124 PetriNetUnfolderBase]: 19/98 cut-off events. [2023-11-17 15:32:48,180 INFO L125 PetriNetUnfolderBase]: For 124/124 co-relation queries the response was YES. [2023-11-17 15:32:48,180 INFO L83 FinitePrefix]: Finished finitePrefix Result has 358 conditions, 98 events. 19/98 cut-off events. For 124/124 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 243 event pairs, 2 based on Foata normal form. 12/110 useless extension candidates. Maximal degree in co-relation 349. Up to 65 conditions per place. [2023-11-17 15:32:48,181 INFO L140 encePairwiseOnDemand]: 265/269 looper letters, 33 selfloop transitions, 8 changer transitions 0/41 dead transitions. [2023-11-17 15:32:48,181 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 41 transitions, 305 flow [2023-11-17 15:32:48,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-17 15:32:48,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-17 15:32:48,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 430 transitions. [2023-11-17 15:32:48,182 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3996282527881041 [2023-11-17 15:32:48,183 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 430 transitions. [2023-11-17 15:32:48,183 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 430 transitions. [2023-11-17 15:32:48,183 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 15:32:48,183 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 430 transitions. [2023-11-17 15:32:48,184 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 107.5) internal successors, (430), 4 states have internal predecessors, (430), 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 15:32:48,185 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 269.0) internal successors, (1345), 5 states have internal predecessors, (1345), 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 15:32:48,186 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 269.0) internal successors, (1345), 5 states have internal predecessors, (1345), 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 15:32:48,186 INFO L175 Difference]: Start difference. First operand has 50 places, 37 transitions, 200 flow. Second operand 4 states and 430 transitions. [2023-11-17 15:32:48,186 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 41 transitions, 305 flow [2023-11-17 15:32:48,187 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 41 transitions, 283 flow, removed 1 selfloop flow, removed 5 redundant places. [2023-11-17 15:32:48,188 INFO L231 Difference]: Finished difference. Result has 44 places, 36 transitions, 191 flow [2023-11-17 15:32:48,188 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=269, PETRI_DIFFERENCE_MINUEND_FLOW=175, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=191, PETRI_PLACES=44, PETRI_TRANSITIONS=36} [2023-11-17 15:32:48,188 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 5 predicate places. [2023-11-17 15:32:48,189 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 36 transitions, 191 flow [2023-11-17 15:32:48,189 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 103.0) internal successors, (618), 6 states have internal predecessors, (618), 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 15:32:48,189 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 15:32:48,189 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] [2023-11-17 15:32:48,189 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-17 15:32:48,190 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-11-17 15:32:48,190 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 15:32:48,190 INFO L85 PathProgramCache]: Analyzing trace with hash 868565613, now seen corresponding path program 1 times [2023-11-17 15:32:48,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 15:32:48,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [740666317] [2023-11-17 15:32:48,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 15:32:48,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 15:32:48,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 15:32:48,331 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 15:32:48,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 15:32:48,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [740666317] [2023-11-17 15:32:48,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [740666317] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 15:32:48,331 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 15:32:48,332 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-17 15:32:48,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675842308] [2023-11-17 15:32:48,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 15:32:48,332 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-17 15:32:48,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 15:32:48,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-17 15:32:48,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-17 15:32:48,334 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 269 [2023-11-17 15:32:48,336 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 36 transitions, 191 flow. Second operand has 5 states, 5 states have (on average 115.6) internal successors, (578), 5 states have internal predecessors, (578), 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 15:32:48,336 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 15:32:48,336 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 269 [2023-11-17 15:32:48,336 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 15:32:48,401 INFO L124 PetriNetUnfolderBase]: 19/96 cut-off events. [2023-11-17 15:32:48,401 INFO L125 PetriNetUnfolderBase]: For 106/106 co-relation queries the response was YES. [2023-11-17 15:32:48,401 INFO L83 FinitePrefix]: Finished finitePrefix Result has 335 conditions, 96 events. 19/96 cut-off events. For 106/106 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 238 event pairs, 7 based on Foata normal form. 2/98 useless extension candidates. Maximal degree in co-relation 326. Up to 77 conditions per place. [2023-11-17 15:32:48,402 INFO L140 encePairwiseOnDemand]: 264/269 looper letters, 0 selfloop transitions, 0 changer transitions 41/41 dead transitions. [2023-11-17 15:32:48,402 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 41 transitions, 302 flow [2023-11-17 15:32:48,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-17 15:32:48,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-17 15:32:48,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 583 transitions. [2023-11-17 15:32:48,405 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.433457249070632 [2023-11-17 15:32:48,405 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 583 transitions. [2023-11-17 15:32:48,405 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 583 transitions. [2023-11-17 15:32:48,405 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 15:32:48,405 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 583 transitions. [2023-11-17 15:32:48,406 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 116.6) internal successors, (583), 5 states have internal predecessors, (583), 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 15:32:48,408 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 269.0) internal successors, (1614), 6 states have internal predecessors, (1614), 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 15:32:48,409 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 269.0) internal successors, (1614), 6 states have internal predecessors, (1614), 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 15:32:48,409 INFO L175 Difference]: Start difference. First operand has 44 places, 36 transitions, 191 flow. Second operand 5 states and 583 transitions. [2023-11-17 15:32:48,409 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 41 transitions, 302 flow [2023-11-17 15:32:48,410 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 41 transitions, 292 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-17 15:32:48,410 INFO L231 Difference]: Finished difference. Result has 44 places, 0 transitions, 0 flow [2023-11-17 15:32:48,411 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=269, PETRI_DIFFERENCE_MINUEND_FLOW=177, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=44, PETRI_TRANSITIONS=0} [2023-11-17 15:32:48,412 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 5 predicate places. [2023-11-17 15:32:48,413 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 0 transitions, 0 flow [2023-11-17 15:32:48,413 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 115.6) internal successors, (578), 5 states have internal predecessors, (578), 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 15:32:48,415 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2023-11-17 15:32:48,416 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining) [2023-11-17 15:32:48,416 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (2 of 5 remaining) [2023-11-17 15:32:48,416 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (1 of 5 remaining) [2023-11-17 15:32:48,416 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2023-11-17 15:32:48,416 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-17 15:32:48,417 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 15:32:48,419 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-17 15:32:48,419 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-17 15:32:48,424 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.11 03:32:48 BasicIcfg [2023-11-17 15:32:48,424 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-17 15:32:48,425 INFO L158 Benchmark]: Toolchain (without parser) took 7701.56ms. Allocated memory was 246.4MB in the beginning and 295.7MB in the end (delta: 49.3MB). Free memory was 196.4MB in the beginning and 141.4MB in the end (delta: 55.0MB). Peak memory consumption was 105.6MB. Max. memory is 8.0GB. [2023-11-17 15:32:48,425 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 178.3MB. Free memory is still 131.6MB. There was no memory consumed. Max. memory is 8.0GB. [2023-11-17 15:32:48,425 INFO L158 Benchmark]: CACSL2BoogieTranslator took 465.22ms. Allocated memory is still 246.4MB. Free memory was 196.1MB in the beginning and 176.4MB in the end (delta: 19.8MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. [2023-11-17 15:32:48,425 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.50ms. Allocated memory is still 246.4MB. Free memory was 176.4MB in the beginning and 174.1MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-11-17 15:32:48,427 INFO L158 Benchmark]: Boogie Preprocessor took 25.93ms. Allocated memory is still 246.4MB. Free memory was 174.1MB in the beginning and 172.7MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-11-17 15:32:48,428 INFO L158 Benchmark]: RCFGBuilder took 479.88ms. Allocated memory is still 246.4MB. Free memory was 172.7MB in the beginning and 150.0MB in the end (delta: 22.7MB). Peak memory consumption was 22.0MB. Max. memory is 8.0GB. [2023-11-17 15:32:48,429 INFO L158 Benchmark]: TraceAbstraction took 6680.49ms. Allocated memory was 246.4MB in the beginning and 295.7MB in the end (delta: 49.3MB). Free memory was 149.2MB in the beginning and 141.4MB in the end (delta: 7.8MB). Peak memory consumption was 58.4MB. Max. memory is 8.0GB. [2023-11-17 15:32:48,430 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 178.3MB. Free memory is still 131.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 465.22ms. Allocated memory is still 246.4MB. Free memory was 196.1MB in the beginning and 176.4MB in the end (delta: 19.8MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 44.50ms. Allocated memory is still 246.4MB. Free memory was 176.4MB in the beginning and 174.1MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 25.93ms. Allocated memory is still 246.4MB. Free memory was 174.1MB in the beginning and 172.7MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 479.88ms. Allocated memory is still 246.4MB. Free memory was 172.7MB in the beginning and 150.0MB in the end (delta: 22.7MB). Peak memory consumption was 22.0MB. Max. memory is 8.0GB. * TraceAbstraction took 6680.49ms. Allocated memory was 246.4MB in the beginning and 295.7MB in the end (delta: 49.3MB). Free memory was 149.2MB in the beginning and 141.4MB in the end (delta: 7.8MB). Peak memory consumption was 58.4MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.6s, 133 PlacesBefore, 39 PlacesAfterwards, 132 TransitionsBefore, 37 TransitionsAfterwards, 4446 CoEnabledTransitionPairs, 8 FixpointIterations, 34 TrivialSequentialCompositions, 75 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 1 ChoiceCompositions, 118 TotalNumberOfCompositions, 12094 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4404, independent: 3956, independent conditional: 0, independent unconditional: 3956, dependent: 448, dependent conditional: 0, dependent unconditional: 448, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2936, independent: 2839, independent conditional: 0, independent unconditional: 2839, dependent: 97, dependent conditional: 0, dependent unconditional: 97, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2936, independent: 2751, independent conditional: 0, independent unconditional: 2751, dependent: 185, dependent conditional: 0, dependent unconditional: 185, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 185, independent: 88, independent conditional: 0, independent unconditional: 88, dependent: 97, dependent conditional: 0, dependent unconditional: 97, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 243, independent: 73, independent conditional: 0, independent unconditional: 73, dependent: 170, dependent conditional: 0, dependent unconditional: 170, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 4404, independent: 1117, independent conditional: 0, independent unconditional: 1117, dependent: 351, dependent conditional: 0, dependent unconditional: 351, unknown: 2936, unknown conditional: 0, unknown unconditional: 2936] , Statistics on independence cache: Total cache size (in pairs): 220, Positive cache size: 163, Positive conditional cache size: 0, Positive unconditional cache size: 163, Negative cache size: 57, Negative conditional cache size: 0, Negative unconditional cache size: 57, 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 - 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, 189 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: 6.5s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.7s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 180 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 180 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 94 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 701 IncrementalHoareTripleChecker+Invalid, 795 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 94 mSolverCounterUnsat, 0 mSDtfsCounter, 701 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 44 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=248occurred in iteration=7, InterpolantAutomatonStates: 36, 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, 1.1s InterpolantComputationTime, 143 NumberOfCodeBlocks, 143 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 133 ConstructedInterpolants, 0 QuantifiedInterpolants, 669 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-17 15:32:48,447 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...