/usr/bin/java -Xmx16000000000 -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-VariableLbe.epf --traceabstraction.order.of.the.error.locations.to.be.checked PROGRAM_FIRST -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true -i ../../../trunk/examples/svcomp/weaver/chl-match-trans.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-27 12:49:59,009 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-27 12:49:59,082 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-VariableLbe.epf [2023-08-27 12:49:59,089 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-27 12:49:59,090 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-27 12:49:59,124 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-27 12:49:59,125 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-27 12:49:59,125 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-27 12:49:59,126 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-27 12:49:59,129 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-27 12:49:59,129 INFO L153 SettingsManager]: * Use SBE=true [2023-08-27 12:49:59,130 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-27 12:49:59,130 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-27 12:49:59,131 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-27 12:49:59,131 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-27 12:49:59,131 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-27 12:49:59,132 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-27 12:49:59,132 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-27 12:49:59,132 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-27 12:49:59,132 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-27 12:49:59,133 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-27 12:49:59,133 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-27 12:49:59,133 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-27 12:49:59,134 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-27 12:49:59,134 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-27 12:49:59,134 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-27 12:49:59,135 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-27 12:49:59,135 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-27 12:49:59,135 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-27 12:49:59,135 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-27 12:49:59,136 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-27 12:49:59,136 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-27 12:49:59,136 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-27 12:49:59,136 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-27 12:49:59,137 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-27 12:49:59,137 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> PROGRAM_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2023-08-27 12:49:59,411 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-27 12:49:59,427 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-27 12:49:59,429 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-27 12:49:59,430 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-27 12:49:59,430 INFO L274 PluginConnector]: CDTParser initialized [2023-08-27 12:49:59,431 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-match-trans.wvr.c [2023-08-27 12:50:00,535 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-27 12:50:00,728 INFO L384 CDTParser]: Found 1 translation units. [2023-08-27 12:50:00,728 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-match-trans.wvr.c [2023-08-27 12:50:00,734 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8b558471b/5dbb3492a6bf4cb5bae07b0652c8cd6b/FLAGabc8afd31 [2023-08-27 12:50:00,743 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8b558471b/5dbb3492a6bf4cb5bae07b0652c8cd6b [2023-08-27 12:50:00,745 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-27 12:50:00,746 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-27 12:50:00,747 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-27 12:50:00,747 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-27 12:50:00,749 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-27 12:50:00,750 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 12:50:00" (1/1) ... [2023-08-27 12:50:00,750 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44c92dc8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 12:50:00, skipping insertion in model container [2023-08-27 12:50:00,750 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 12:50:00" (1/1) ... [2023-08-27 12:50:00,769 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-27 12:50:00,939 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-27 12:50:00,951 INFO L201 MainTranslator]: Completed pre-run [2023-08-27 12:50:00,987 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-27 12:50:01,002 INFO L206 MainTranslator]: Completed translation [2023-08-27 12:50:01,003 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 12:50:01 WrapperNode [2023-08-27 12:50:01,003 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-27 12:50:01,004 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-27 12:50:01,004 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-27 12:50:01,004 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-27 12:50:01,009 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 12:50:01" (1/1) ... [2023-08-27 12:50:01,025 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 12:50:01" (1/1) ... [2023-08-27 12:50:01,065 INFO L138 Inliner]: procedures = 23, calls = 34, calls flagged for inlining = 12, calls inlined = 22, statements flattened = 297 [2023-08-27 12:50:01,066 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-27 12:50:01,066 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-27 12:50:01,066 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-27 12:50:01,067 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-27 12:50:01,075 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 12:50:01" (1/1) ... [2023-08-27 12:50:01,075 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 12:50:01" (1/1) ... [2023-08-27 12:50:01,083 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 12:50:01" (1/1) ... [2023-08-27 12:50:01,084 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 12:50:01" (1/1) ... [2023-08-27 12:50:01,090 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 12:50:01" (1/1) ... [2023-08-27 12:50:01,099 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 12:50:01" (1/1) ... [2023-08-27 12:50:01,100 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 12:50:01" (1/1) ... [2023-08-27 12:50:01,101 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 12:50:01" (1/1) ... [2023-08-27 12:50:01,113 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-27 12:50:01,114 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-27 12:50:01,114 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-27 12:50:01,114 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-27 12:50:01,115 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 12:50:01" (1/1) ... [2023-08-27 12:50:01,119 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-27 12:50:01,130 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-27 12:50:01,150 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) [2023-08-27 12:50:01,174 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 [2023-08-27 12:50:01,189 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-27 12:50:01,189 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-27 12:50:01,189 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-27 12:50:01,189 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-27 12:50:01,189 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-27 12:50:01,189 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-08-27 12:50:01,190 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-08-27 12:50:01,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-27 12:50:01,190 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-27 12:50:01,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-27 12:50:01,191 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-27 12:50:01,191 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-27 12:50:01,191 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-27 12:50:01,191 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-27 12:50:01,192 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-27 12:50:01,313 INFO L236 CfgBuilder]: Building ICFG [2023-08-27 12:50:01,317 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-27 12:50:01,775 INFO L277 CfgBuilder]: Performing block encoding [2023-08-27 12:50:01,786 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-27 12:50:01,787 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-27 12:50:01,789 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 12:50:01 BoogieIcfgContainer [2023-08-27 12:50:01,789 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-27 12:50:01,792 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-27 12:50:01,792 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-27 12:50:01,795 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-27 12:50:01,795 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.08 12:50:00" (1/3) ... [2023-08-27 12:50:01,796 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fcd4789 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 12:50:01, skipping insertion in model container [2023-08-27 12:50:01,796 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 12:50:01" (2/3) ... [2023-08-27 12:50:01,796 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fcd4789 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 12:50:01, skipping insertion in model container [2023-08-27 12:50:01,796 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 12:50:01" (3/3) ... [2023-08-27 12:50:01,797 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-match-trans.wvr.c [2023-08-27 12:50:01,812 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-27 12:50:01,812 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 37 error locations. [2023-08-27 12:50:01,813 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-27 12:50:01,968 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-08-27 12:50:02,013 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 367 places, 382 transitions, 788 flow [2023-08-27 12:50:02,194 INFO L124 PetriNetUnfolderBase]: 25/379 cut-off events. [2023-08-27 12:50:02,194 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-08-27 12:50:02,209 INFO L83 FinitePrefix]: Finished finitePrefix Result has 392 conditions, 379 events. 25/379 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 880 event pairs, 0 based on Foata normal form. 0/317 useless extension candidates. Maximal degree in co-relation 292. Up to 2 conditions per place. [2023-08-27 12:50:02,209 INFO L82 GeneralOperation]: Start removeDead. Operand has 367 places, 382 transitions, 788 flow [2023-08-27 12:50:02,223 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 353 places, 368 transitions, 754 flow [2023-08-27 12:50:02,226 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 12:50:02,244 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 353 places, 368 transitions, 754 flow [2023-08-27 12:50:02,247 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 353 places, 368 transitions, 754 flow [2023-08-27 12:50:02,248 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 353 places, 368 transitions, 754 flow [2023-08-27 12:50:02,348 INFO L124 PetriNetUnfolderBase]: 25/368 cut-off events. [2023-08-27 12:50:02,349 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-08-27 12:50:02,351 INFO L83 FinitePrefix]: Finished finitePrefix Result has 381 conditions, 368 events. 25/368 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 885 event pairs, 0 based on Foata normal form. 0/307 useless extension candidates. Maximal degree in co-relation 292. Up to 2 conditions per place. [2023-08-27 12:50:02,374 INFO L119 LiptonReduction]: Number of co-enabled transitions 56238 [2023-08-27 12:50:36,281 INFO L134 LiptonReduction]: Checked pairs total: 56186 [2023-08-27 12:50:36,281 INFO L136 LiptonReduction]: Total number of compositions: 516 [2023-08-27 12:50:36,292 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-27 12:50:36,297 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=LoopsAndPotentialCycles, 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;@43181d42, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 12:50:36,298 INFO L358 AbstractCegarLoop]: Starting to check reachability of 76 error locations. [2023-08-27 12:50:36,301 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 12:50:36,301 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events. [2023-08-27 12:50:36,301 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 12:50:36,301 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 12:50:36,302 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-27 12:50:36,302 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 73 more)] === [2023-08-27 12:50:36,306 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 12:50:36,307 INFO L85 PathProgramCache]: Analyzing trace with hash 1630310, now seen corresponding path program 1 times [2023-08-27 12:50:36,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 12:50:36,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848374317] [2023-08-27 12:50:36,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 12:50:36,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 12:50:36,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 12:50:36,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 12:50:36,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 12:50:36,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1848374317] [2023-08-27 12:50:36,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1848374317] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 12:50:36,551 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 12:50:36,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 12:50:36,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983560872] [2023-08-27 12:50:36,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 12:50:36,559 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 12:50:36,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 12:50:36,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 12:50:36,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 12:50:36,589 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 358 out of 898 [2023-08-27 12:50:36,594 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 52 transitions, 122 flow. Second operand has 3 states, 3 states have (on average 359.0) internal successors, (1077), 3 states have internal predecessors, (1077), 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) [2023-08-27 12:50:36,595 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 12:50:36,595 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 358 of 898 [2023-08-27 12:50:36,596 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 12:50:38,156 INFO L124 PetriNetUnfolderBase]: 4205/6224 cut-off events. [2023-08-27 12:50:38,157 INFO L125 PetriNetUnfolderBase]: For 181/181 co-relation queries the response was YES. [2023-08-27 12:50:38,160 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12753 conditions, 6224 events. 4205/6224 cut-off events. For 181/181 co-relation queries the response was YES. Maximal size of possible extension queue 803. Compared 36311 event pairs, 4205 based on Foata normal form. 0/1812 useless extension candidates. Maximal degree in co-relation 11566. Up to 6224 conditions per place. [2023-08-27 12:50:38,192 INFO L140 encePairwiseOnDemand]: 883/898 looper letters, 37 selfloop transitions, 1 changer transitions 0/38 dead transitions. [2023-08-27 12:50:38,193 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 38 transitions, 170 flow [2023-08-27 12:50:38,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 12:50:38,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 12:50:38,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1126 transitions. [2023-08-27 12:50:38,208 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4179658500371195 [2023-08-27 12:50:38,208 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1126 transitions. [2023-08-27 12:50:38,209 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1126 transitions. [2023-08-27 12:50:38,211 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 12:50:38,213 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1126 transitions. [2023-08-27 12:50:38,218 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 375.3333333333333) internal successors, (1126), 3 states have internal predecessors, (1126), 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) [2023-08-27 12:50:38,226 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 898.0) internal successors, (3592), 4 states have internal predecessors, (3592), 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) [2023-08-27 12:50:38,227 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 898.0) internal successors, (3592), 4 states have internal predecessors, (3592), 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) [2023-08-27 12:50:38,229 INFO L175 Difference]: Start difference. First operand has 62 places, 52 transitions, 122 flow. Second operand 3 states and 1126 transitions. [2023-08-27 12:50:38,230 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 38 transitions, 170 flow [2023-08-27 12:50:38,234 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 38 transitions, 158 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-08-27 12:50:38,235 INFO L231 Difference]: Finished difference. Result has 44 places, 38 transitions, 84 flow [2023-08-27 12:50:38,237 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=898, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=84, PETRI_PLACES=44, PETRI_TRANSITIONS=38} [2023-08-27 12:50:38,239 INFO L281 CegarLoopForPetriNet]: 62 programPoint places, -18 predicate places. [2023-08-27 12:50:38,240 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 38 transitions, 84 flow [2023-08-27 12:50:38,240 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 359.0) internal successors, (1077), 3 states have internal predecessors, (1077), 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) [2023-08-27 12:50:38,241 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 12:50:38,241 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-27 12:50:38,241 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-27 12:50:38,241 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 73 more)] === [2023-08-27 12:50:38,242 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 12:50:38,242 INFO L85 PathProgramCache]: Analyzing trace with hash 1630419, now seen corresponding path program 1 times [2023-08-27 12:50:38,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 12:50:38,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [80040929] [2023-08-27 12:50:38,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 12:50:38,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 12:50:38,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 12:50:38,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 12:50:38,365 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 12:50:38,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [80040929] [2023-08-27 12:50:38,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [80040929] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 12:50:38,366 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 12:50:38,366 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 12:50:38,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831035052] [2023-08-27 12:50:38,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 12:50:38,367 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 12:50:38,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 12:50:38,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 12:50:38,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 12:50:38,369 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 358 out of 898 [2023-08-27 12:50:38,370 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 38 transitions, 84 flow. Second operand has 3 states, 3 states have (on average 359.0) internal successors, (1077), 3 states have internal predecessors, (1077), 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) [2023-08-27 12:50:38,370 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 12:50:38,370 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 358 of 898 [2023-08-27 12:50:38,371 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 12:50:39,383 INFO L124 PetriNetUnfolderBase]: 3363/5002 cut-off events. [2023-08-27 12:50:39,384 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 12:50:39,386 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10089 conditions, 5002 events. 3363/5002 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 642. Compared 28238 event pairs, 3363 based on Foata normal form. 0/1516 useless extension candidates. Maximal degree in co-relation 10083. Up to 5002 conditions per place. [2023-08-27 12:50:39,407 INFO L140 encePairwiseOnDemand]: 895/898 looper letters, 35 selfloop transitions, 1 changer transitions 0/36 dead transitions. [2023-08-27 12:50:39,407 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 36 transitions, 152 flow [2023-08-27 12:50:39,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 12:50:39,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 12:50:39,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1112 transitions. [2023-08-27 12:50:39,410 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41276911655530807 [2023-08-27 12:50:39,410 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1112 transitions. [2023-08-27 12:50:39,411 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1112 transitions. [2023-08-27 12:50:39,411 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 12:50:39,411 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1112 transitions. [2023-08-27 12:50:39,413 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 370.6666666666667) internal successors, (1112), 3 states have internal predecessors, (1112), 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) [2023-08-27 12:50:39,418 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 898.0) internal successors, (3592), 4 states have internal predecessors, (3592), 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) [2023-08-27 12:50:39,420 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 898.0) internal successors, (3592), 4 states have internal predecessors, (3592), 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) [2023-08-27 12:50:39,420 INFO L175 Difference]: Start difference. First operand has 44 places, 38 transitions, 84 flow. Second operand 3 states and 1112 transitions. [2023-08-27 12:50:39,420 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 36 transitions, 152 flow [2023-08-27 12:50:39,420 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 36 transitions, 151 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 12:50:39,421 INFO L231 Difference]: Finished difference. Result has 43 places, 36 transitions, 81 flow [2023-08-27 12:50:39,421 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=898, PETRI_DIFFERENCE_MINUEND_FLOW=79, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=81, PETRI_PLACES=43, PETRI_TRANSITIONS=36} [2023-08-27 12:50:39,422 INFO L281 CegarLoopForPetriNet]: 62 programPoint places, -19 predicate places. [2023-08-27 12:50:39,422 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 36 transitions, 81 flow [2023-08-27 12:50:39,423 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 359.0) internal successors, (1077), 3 states have internal predecessors, (1077), 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) [2023-08-27 12:50:39,423 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 12:50:39,423 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-27 12:50:39,423 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-27 12:50:39,424 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 73 more)] === [2023-08-27 12:50:39,424 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 12:50:39,424 INFO L85 PathProgramCache]: Analyzing trace with hash 1630420, now seen corresponding path program 1 times [2023-08-27 12:50:39,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 12:50:39,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1335822441] [2023-08-27 12:50:39,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 12:50:39,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 12:50:39,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 12:50:39,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 12:50:39,501 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 12:50:39,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1335822441] [2023-08-27 12:50:39,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1335822441] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 12:50:39,501 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 12:50:39,501 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 12:50:39,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659752251] [2023-08-27 12:50:39,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 12:50:39,502 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 12:50:39,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 12:50:39,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 12:50:39,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 12:50:39,504 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 358 out of 898 [2023-08-27 12:50:39,505 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 36 transitions, 81 flow. Second operand has 3 states, 3 states have (on average 359.0) internal successors, (1077), 3 states have internal predecessors, (1077), 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) [2023-08-27 12:50:39,505 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 12:50:39,505 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 358 of 898 [2023-08-27 12:50:39,505 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 12:50:40,333 INFO L124 PetriNetUnfolderBase]: 2615/3914 cut-off events. [2023-08-27 12:50:40,333 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 12:50:40,335 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7897 conditions, 3914 events. 2615/3914 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 499. Compared 21427 event pairs, 2615 based on Foata normal form. 0/1246 useless extension candidates. Maximal degree in co-relation 7890. Up to 3914 conditions per place. [2023-08-27 12:50:40,350 INFO L140 encePairwiseOnDemand]: 895/898 looper letters, 33 selfloop transitions, 1 changer transitions 0/34 dead transitions. [2023-08-27 12:50:40,350 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 34 transitions, 145 flow [2023-08-27 12:50:40,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 12:50:40,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 12:50:40,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1110 transitions. [2023-08-27 12:50:40,354 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41202672605790647 [2023-08-27 12:50:40,354 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1110 transitions. [2023-08-27 12:50:40,354 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1110 transitions. [2023-08-27 12:50:40,355 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 12:50:40,355 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1110 transitions. [2023-08-27 12:50:40,357 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 370.0) internal successors, (1110), 3 states have internal predecessors, (1110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 12:50:40,361 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 898.0) internal successors, (3592), 4 states have internal predecessors, (3592), 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) [2023-08-27 12:50:40,363 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 898.0) internal successors, (3592), 4 states have internal predecessors, (3592), 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) [2023-08-27 12:50:40,363 INFO L175 Difference]: Start difference. First operand has 43 places, 36 transitions, 81 flow. Second operand 3 states and 1110 transitions. [2023-08-27 12:50:40,363 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 34 transitions, 145 flow [2023-08-27 12:50:40,364 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 34 transitions, 144 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 12:50:40,365 INFO L231 Difference]: Finished difference. Result has 42 places, 34 transitions, 78 flow [2023-08-27 12:50:40,365 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=898, PETRI_DIFFERENCE_MINUEND_FLOW=76, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=78, PETRI_PLACES=42, PETRI_TRANSITIONS=34} [2023-08-27 12:50:40,366 INFO L281 CegarLoopForPetriNet]: 62 programPoint places, -20 predicate places. [2023-08-27 12:50:40,366 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 34 transitions, 78 flow [2023-08-27 12:50:40,367 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 359.0) internal successors, (1077), 3 states have internal predecessors, (1077), 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) [2023-08-27 12:50:40,367 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 12:50:40,367 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-27 12:50:40,367 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-27 12:50:40,367 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 73 more)] === [2023-08-27 12:50:40,367 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 12:50:40,368 INFO L85 PathProgramCache]: Analyzing trace with hash 1630421, now seen corresponding path program 1 times [2023-08-27 12:50:40,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 12:50:40,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419699585] [2023-08-27 12:50:40,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 12:50:40,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 12:50:40,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 12:50:40,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 12:50:40,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 12:50:40,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419699585] [2023-08-27 12:50:40,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1419699585] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 12:50:40,486 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 12:50:40,486 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 12:50:40,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986454496] [2023-08-27 12:50:40,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 12:50:40,487 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 12:50:40,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 12:50:40,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 12:50:40,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 12:50:40,488 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 358 out of 898 [2023-08-27 12:50:40,490 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 34 transitions, 78 flow. Second operand has 3 states, 3 states have (on average 359.0) internal successors, (1077), 3 states have internal predecessors, (1077), 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) [2023-08-27 12:50:40,490 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 12:50:40,490 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 358 of 898 [2023-08-27 12:50:40,490 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 12:50:41,102 INFO L124 PetriNetUnfolderBase]: 1961/2960 cut-off events. [2023-08-27 12:50:41,102 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 12:50:41,104 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5975 conditions, 2960 events. 1961/2960 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 374. Compared 15571 event pairs, 1961 based on Foata normal form. 0/1002 useless extension candidates. Maximal degree in co-relation 5967. Up to 2960 conditions per place. [2023-08-27 12:50:41,113 INFO L140 encePairwiseOnDemand]: 895/898 looper letters, 31 selfloop transitions, 1 changer transitions 0/32 dead transitions. [2023-08-27 12:50:41,114 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 32 transitions, 138 flow [2023-08-27 12:50:41,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 12:50:41,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 12:50:41,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1108 transitions. [2023-08-27 12:50:41,117 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4112843355605048 [2023-08-27 12:50:41,117 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1108 transitions. [2023-08-27 12:50:41,117 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1108 transitions. [2023-08-27 12:50:41,118 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 12:50:41,118 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1108 transitions. [2023-08-27 12:50:41,120 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 369.3333333333333) internal successors, (1108), 3 states have internal predecessors, (1108), 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) [2023-08-27 12:50:41,124 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 898.0) internal successors, (3592), 4 states have internal predecessors, (3592), 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) [2023-08-27 12:50:41,126 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 898.0) internal successors, (3592), 4 states have internal predecessors, (3592), 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) [2023-08-27 12:50:41,126 INFO L175 Difference]: Start difference. First operand has 42 places, 34 transitions, 78 flow. Second operand 3 states and 1108 transitions. [2023-08-27 12:50:41,126 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 32 transitions, 138 flow [2023-08-27 12:50:41,127 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 32 transitions, 137 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 12:50:41,127 INFO L231 Difference]: Finished difference. Result has 41 places, 32 transitions, 75 flow [2023-08-27 12:50:41,127 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=898, PETRI_DIFFERENCE_MINUEND_FLOW=73, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=75, PETRI_PLACES=41, PETRI_TRANSITIONS=32} [2023-08-27 12:50:41,128 INFO L281 CegarLoopForPetriNet]: 62 programPoint places, -21 predicate places. [2023-08-27 12:50:41,128 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 32 transitions, 75 flow [2023-08-27 12:50:41,129 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 359.0) internal successors, (1077), 3 states have internal predecessors, (1077), 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) [2023-08-27 12:50:41,129 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 12:50:41,129 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-27 12:50:41,129 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-27 12:50:41,129 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 73 more)] === [2023-08-27 12:50:41,130 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 12:50:41,130 INFO L85 PathProgramCache]: Analyzing trace with hash 1630383, now seen corresponding path program 1 times [2023-08-27 12:50:41,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 12:50:41,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1448230163] [2023-08-27 12:50:41,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 12:50:41,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 12:50:41,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 12:50:41,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 12:50:41,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 12:50:41,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1448230163] [2023-08-27 12:50:41,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1448230163] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 12:50:41,215 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 12:50:41,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 12:50:41,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860499314] [2023-08-27 12:50:41,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 12:50:41,216 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 12:50:41,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 12:50:41,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 12:50:41,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 12:50:41,217 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 358 out of 898 [2023-08-27 12:50:41,218 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 32 transitions, 75 flow. Second operand has 3 states, 3 states have (on average 359.0) internal successors, (1077), 3 states have internal predecessors, (1077), 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) [2023-08-27 12:50:41,219 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 12:50:41,219 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 358 of 898 [2023-08-27 12:50:41,219 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 12:50:41,691 INFO L124 PetriNetUnfolderBase]: 1471/2242 cut-off events. [2023-08-27 12:50:41,692 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 12:50:41,693 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4532 conditions, 2242 events. 1471/2242 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 277. Compared 11257 event pairs, 1471 based on Foata normal form. 0/812 useless extension candidates. Maximal degree in co-relation 4523. Up to 2242 conditions per place. [2023-08-27 12:50:41,698 INFO L140 encePairwiseOnDemand]: 895/898 looper letters, 29 selfloop transitions, 1 changer transitions 0/30 dead transitions. [2023-08-27 12:50:41,699 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 30 transitions, 131 flow [2023-08-27 12:50:41,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 12:50:41,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 12:50:41,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1106 transitions. [2023-08-27 12:50:41,702 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4105419450631032 [2023-08-27 12:50:41,702 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1106 transitions. [2023-08-27 12:50:41,702 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1106 transitions. [2023-08-27 12:50:41,703 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 12:50:41,703 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1106 transitions. [2023-08-27 12:50:41,705 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 368.6666666666667) internal successors, (1106), 3 states have internal predecessors, (1106), 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) [2023-08-27 12:50:41,709 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 898.0) internal successors, (3592), 4 states have internal predecessors, (3592), 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) [2023-08-27 12:50:41,711 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 898.0) internal successors, (3592), 4 states have internal predecessors, (3592), 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) [2023-08-27 12:50:41,711 INFO L175 Difference]: Start difference. First operand has 41 places, 32 transitions, 75 flow. Second operand 3 states and 1106 transitions. [2023-08-27 12:50:41,711 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 30 transitions, 131 flow [2023-08-27 12:50:41,712 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 30 transitions, 130 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 12:50:41,712 INFO L231 Difference]: Finished difference. Result has 40 places, 30 transitions, 72 flow [2023-08-27 12:50:41,712 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=898, PETRI_DIFFERENCE_MINUEND_FLOW=70, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=72, PETRI_PLACES=40, PETRI_TRANSITIONS=30} [2023-08-27 12:50:41,713 INFO L281 CegarLoopForPetriNet]: 62 programPoint places, -22 predicate places. [2023-08-27 12:50:41,713 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 30 transitions, 72 flow [2023-08-27 12:50:41,714 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 359.0) internal successors, (1077), 3 states have internal predecessors, (1077), 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) [2023-08-27 12:50:41,714 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 12:50:41,714 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-27 12:50:41,714 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-27 12:50:41,714 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 73 more)] === [2023-08-27 12:50:41,715 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 12:50:41,715 INFO L85 PathProgramCache]: Analyzing trace with hash 1630382, now seen corresponding path program 1 times [2023-08-27 12:50:41,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 12:50:41,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854519279] [2023-08-27 12:50:41,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 12:50:41,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 12:50:41,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 12:50:41,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 12:50:41,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 12:50:41,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1854519279] [2023-08-27 12:50:41,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1854519279] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 12:50:41,740 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 12:50:41,741 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 12:50:41,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512085770] [2023-08-27 12:50:41,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 12:50:41,741 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 12:50:41,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 12:50:41,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 12:50:41,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 12:50:41,743 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 358 out of 898 [2023-08-27 12:50:41,744 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 30 transitions, 72 flow. Second operand has 3 states, 3 states have (on average 359.0) internal successors, (1077), 3 states have internal predecessors, (1077), 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) [2023-08-27 12:50:41,744 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 12:50:41,744 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 358 of 898 [2023-08-27 12:50:41,744 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 12:50:42,110 INFO L124 PetriNetUnfolderBase]: 1047/1618 cut-off events. [2023-08-27 12:50:42,111 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 12:50:42,111 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3277 conditions, 1618 events. 1047/1618 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 194. Compared 7738 event pairs, 1047 based on Foata normal form. 0/640 useless extension candidates. Maximal degree in co-relation 3267. Up to 1618 conditions per place. [2023-08-27 12:50:42,114 INFO L140 encePairwiseOnDemand]: 895/898 looper letters, 27 selfloop transitions, 1 changer transitions 0/28 dead transitions. [2023-08-27 12:50:42,115 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 28 transitions, 124 flow [2023-08-27 12:50:42,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 12:50:42,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 12:50:42,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1104 transitions. [2023-08-27 12:50:42,123 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40979955456570155 [2023-08-27 12:50:42,123 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1104 transitions. [2023-08-27 12:50:42,124 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1104 transitions. [2023-08-27 12:50:42,124 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 12:50:42,124 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1104 transitions. [2023-08-27 12:50:42,126 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 368.0) internal successors, (1104), 3 states have internal predecessors, (1104), 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) [2023-08-27 12:50:42,130 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 898.0) internal successors, (3592), 4 states have internal predecessors, (3592), 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) [2023-08-27 12:50:42,133 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 898.0) internal successors, (3592), 4 states have internal predecessors, (3592), 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) [2023-08-27 12:50:42,133 INFO L175 Difference]: Start difference. First operand has 40 places, 30 transitions, 72 flow. Second operand 3 states and 1104 transitions. [2023-08-27 12:50:42,133 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 28 transitions, 124 flow [2023-08-27 12:50:42,134 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 28 transitions, 123 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 12:50:42,135 INFO L231 Difference]: Finished difference. Result has 39 places, 28 transitions, 69 flow [2023-08-27 12:50:42,135 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=898, PETRI_DIFFERENCE_MINUEND_FLOW=67, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=69, PETRI_PLACES=39, PETRI_TRANSITIONS=28} [2023-08-27 12:50:42,137 INFO L281 CegarLoopForPetriNet]: 62 programPoint places, -23 predicate places. [2023-08-27 12:50:42,141 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 28 transitions, 69 flow [2023-08-27 12:50:42,142 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 359.0) internal successors, (1077), 3 states have internal predecessors, (1077), 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) [2023-08-27 12:50:42,142 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 12:50:42,142 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-27 12:50:42,142 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-27 12:50:42,143 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 73 more)] === [2023-08-27 12:50:42,143 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 12:50:42,143 INFO L85 PathProgramCache]: Analyzing trace with hash 1630385, now seen corresponding path program 1 times [2023-08-27 12:50:42,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 12:50:42,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895869611] [2023-08-27 12:50:42,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 12:50:42,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 12:50:42,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 12:50:42,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 12:50:42,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 12:50:42,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [895869611] [2023-08-27 12:50:42,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [895869611] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 12:50:42,193 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 12:50:42,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 12:50:42,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469495723] [2023-08-27 12:50:42,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 12:50:42,194 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 12:50:42,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 12:50:42,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 12:50:42,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 12:50:42,196 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 358 out of 898 [2023-08-27 12:50:42,197 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 28 transitions, 69 flow. Second operand has 3 states, 3 states have (on average 359.0) internal successors, (1077), 3 states have internal predecessors, (1077), 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) [2023-08-27 12:50:42,197 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 12:50:42,197 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 358 of 898 [2023-08-27 12:50:42,197 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 12:50:42,461 INFO L124 PetriNetUnfolderBase]: 689/1088 cut-off events. [2023-08-27 12:50:42,461 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 12:50:42,462 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2210 conditions, 1088 events. 689/1088 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 125. Compared 4846 event pairs, 689 based on Foata normal form. 0/486 useless extension candidates. Maximal degree in co-relation 2199. Up to 1088 conditions per place. [2023-08-27 12:50:42,465 INFO L140 encePairwiseOnDemand]: 895/898 looper letters, 25 selfloop transitions, 1 changer transitions 0/26 dead transitions. [2023-08-27 12:50:42,465 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 26 transitions, 117 flow [2023-08-27 12:50:42,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 12:50:42,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 12:50:42,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1102 transitions. [2023-08-27 12:50:42,491 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40905716406829995 [2023-08-27 12:50:42,491 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1102 transitions. [2023-08-27 12:50:42,491 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1102 transitions. [2023-08-27 12:50:42,492 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 12:50:42,492 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1102 transitions. [2023-08-27 12:50:42,495 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 367.3333333333333) internal successors, (1102), 3 states have internal predecessors, (1102), 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) [2023-08-27 12:50:42,499 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 898.0) internal successors, (3592), 4 states have internal predecessors, (3592), 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) [2023-08-27 12:50:42,500 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 898.0) internal successors, (3592), 4 states have internal predecessors, (3592), 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) [2023-08-27 12:50:42,500 INFO L175 Difference]: Start difference. First operand has 39 places, 28 transitions, 69 flow. Second operand 3 states and 1102 transitions. [2023-08-27 12:50:42,500 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 26 transitions, 117 flow [2023-08-27 12:50:42,501 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 26 transitions, 116 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 12:50:42,501 INFO L231 Difference]: Finished difference. Result has 38 places, 26 transitions, 66 flow [2023-08-27 12:50:42,502 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=898, PETRI_DIFFERENCE_MINUEND_FLOW=64, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=66, PETRI_PLACES=38, PETRI_TRANSITIONS=26} [2023-08-27 12:50:42,502 INFO L281 CegarLoopForPetriNet]: 62 programPoint places, -24 predicate places. [2023-08-27 12:50:42,502 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 26 transitions, 66 flow [2023-08-27 12:50:42,503 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 359.0) internal successors, (1077), 3 states have internal predecessors, (1077), 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) [2023-08-27 12:50:42,503 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 12:50:42,503 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-27 12:50:42,503 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-27 12:50:42,503 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 73 more)] === [2023-08-27 12:50:42,504 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 12:50:42,504 INFO L85 PathProgramCache]: Analyzing trace with hash 1630396, now seen corresponding path program 1 times [2023-08-27 12:50:42,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 12:50:42,504 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832521688] [2023-08-27 12:50:42,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 12:50:42,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 12:50:42,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 12:50:42,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 12:50:42,534 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 12:50:42,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1832521688] [2023-08-27 12:50:42,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1832521688] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 12:50:42,535 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 12:50:42,535 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 12:50:42,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659114452] [2023-08-27 12:50:42,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 12:50:42,535 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 12:50:42,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 12:50:42,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 12:50:42,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 12:50:42,537 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 358 out of 898 [2023-08-27 12:50:42,539 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 26 transitions, 66 flow. Second operand has 3 states, 3 states have (on average 359.0) internal successors, (1077), 3 states have internal predecessors, (1077), 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) [2023-08-27 12:50:42,539 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 12:50:42,539 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 358 of 898 [2023-08-27 12:50:42,539 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 12:50:42,769 INFO L124 PetriNetUnfolderBase]: 405/664 cut-off events. [2023-08-27 12:50:42,769 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 12:50:42,769 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1353 conditions, 664 events. 405/664 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 2717 event pairs, 405 based on Foata normal form. 0/352 useless extension candidates. Maximal degree in co-relation 1341. Up to 664 conditions per place. [2023-08-27 12:50:42,771 INFO L140 encePairwiseOnDemand]: 895/898 looper letters, 23 selfloop transitions, 1 changer transitions 0/24 dead transitions. [2023-08-27 12:50:42,771 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 24 transitions, 110 flow [2023-08-27 12:50:42,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 12:50:42,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 12:50:42,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1100 transitions. [2023-08-27 12:50:42,775 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4083147735708983 [2023-08-27 12:50:42,775 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1100 transitions. [2023-08-27 12:50:42,775 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1100 transitions. [2023-08-27 12:50:42,775 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 12:50:42,775 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1100 transitions. [2023-08-27 12:50:42,778 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 366.6666666666667) internal successors, (1100), 3 states have internal predecessors, (1100), 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) [2023-08-27 12:50:42,781 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 898.0) internal successors, (3592), 4 states have internal predecessors, (3592), 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) [2023-08-27 12:50:42,782 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 898.0) internal successors, (3592), 4 states have internal predecessors, (3592), 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) [2023-08-27 12:50:42,782 INFO L175 Difference]: Start difference. First operand has 38 places, 26 transitions, 66 flow. Second operand 3 states and 1100 transitions. [2023-08-27 12:50:42,782 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 24 transitions, 110 flow [2023-08-27 12:50:42,783 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 24 transitions, 109 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 12:50:42,783 INFO L231 Difference]: Finished difference. Result has 37 places, 24 transitions, 63 flow [2023-08-27 12:50:42,783 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=898, PETRI_DIFFERENCE_MINUEND_FLOW=61, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=63, PETRI_PLACES=37, PETRI_TRANSITIONS=24} [2023-08-27 12:50:42,784 INFO L281 CegarLoopForPetriNet]: 62 programPoint places, -25 predicate places. [2023-08-27 12:50:42,784 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 24 transitions, 63 flow [2023-08-27 12:50:42,784 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 359.0) internal successors, (1077), 3 states have internal predecessors, (1077), 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) [2023-08-27 12:50:42,785 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 12:50:42,785 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-27 12:50:42,785 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-27 12:50:42,785 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread2Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 73 more)] === [2023-08-27 12:50:42,785 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 12:50:42,785 INFO L85 PathProgramCache]: Analyzing trace with hash 1566685277, now seen corresponding path program 1 times [2023-08-27 12:50:42,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 12:50:42,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856532351] [2023-08-27 12:50:42,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 12:50:42,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 12:50:42,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 12:50:42,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 12:50:42,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 12:50:42,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856532351] [2023-08-27 12:50:42,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [856532351] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 12:50:42,819 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 12:50:42,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 12:50:42,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246359875] [2023-08-27 12:50:42,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 12:50:42,820 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 12:50:42,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 12:50:42,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 12:50:42,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 12:50:42,822 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 358 out of 898 [2023-08-27 12:50:42,823 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 24 transitions, 63 flow. Second operand has 3 states, 3 states have (on average 359.6666666666667) internal successors, (1079), 3 states have internal predecessors, (1079), 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) [2023-08-27 12:50:42,823 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 12:50:42,823 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 358 of 898 [2023-08-27 12:50:42,823 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 12:50:42,995 INFO L124 PetriNetUnfolderBase]: 277/464 cut-off events. [2023-08-27 12:50:42,995 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 12:50:42,996 INFO L83 FinitePrefix]: Finished finitePrefix Result has 952 conditions, 464 events. 277/464 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 1750 event pairs, 277 based on Foata normal form. 0/266 useless extension candidates. Maximal degree in co-relation 939. Up to 464 conditions per place. [2023-08-27 12:50:42,997 INFO L140 encePairwiseOnDemand]: 895/898 looper letters, 21 selfloop transitions, 1 changer transitions 0/22 dead transitions. [2023-08-27 12:50:42,997 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 22 transitions, 103 flow [2023-08-27 12:50:42,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 12:50:42,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 12:50:43,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1098 transitions. [2023-08-27 12:50:43,001 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40757238307349664 [2023-08-27 12:50:43,001 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1098 transitions. [2023-08-27 12:50:43,001 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1098 transitions. [2023-08-27 12:50:43,001 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 12:50:43,001 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1098 transitions. [2023-08-27 12:50:43,015 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 366.0) internal successors, (1098), 3 states have internal predecessors, (1098), 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) [2023-08-27 12:50:43,019 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 898.0) internal successors, (3592), 4 states have internal predecessors, (3592), 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) [2023-08-27 12:50:43,020 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 898.0) internal successors, (3592), 4 states have internal predecessors, (3592), 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) [2023-08-27 12:50:43,020 INFO L175 Difference]: Start difference. First operand has 37 places, 24 transitions, 63 flow. Second operand 3 states and 1098 transitions. [2023-08-27 12:50:43,020 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 22 transitions, 103 flow [2023-08-27 12:50:43,021 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 22 transitions, 102 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 12:50:43,023 INFO L231 Difference]: Finished difference. Result has 36 places, 22 transitions, 60 flow [2023-08-27 12:50:43,023 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=898, PETRI_DIFFERENCE_MINUEND_FLOW=58, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=60, PETRI_PLACES=36, PETRI_TRANSITIONS=22} [2023-08-27 12:50:43,023 INFO L281 CegarLoopForPetriNet]: 62 programPoint places, -26 predicate places. [2023-08-27 12:50:43,024 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 22 transitions, 60 flow [2023-08-27 12:50:43,024 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 359.6666666666667) internal successors, (1079), 3 states have internal predecessors, (1079), 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) [2023-08-27 12:50:43,024 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 12:50:43,024 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-27 12:50:43,024 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-27 12:50:43,024 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread2Err11ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 73 more)] === [2023-08-27 12:50:43,025 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 12:50:43,025 INFO L85 PathProgramCache]: Analyzing trace with hash 1566685299, now seen corresponding path program 1 times [2023-08-27 12:50:43,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 12:50:43,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418082148] [2023-08-27 12:50:43,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 12:50:43,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 12:50:43,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 12:50:43,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 12:50:43,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 12:50:43,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1418082148] [2023-08-27 12:50:43,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1418082148] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 12:50:43,136 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 12:50:43,137 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 12:50:43,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489602987] [2023-08-27 12:50:43,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 12:50:43,137 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 12:50:43,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 12:50:43,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 12:50:43,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 12:50:43,139 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 358 out of 898 [2023-08-27 12:50:43,140 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 22 transitions, 60 flow. Second operand has 3 states, 3 states have (on average 359.6666666666667) internal successors, (1079), 3 states have internal predecessors, (1079), 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) [2023-08-27 12:50:43,140 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 12:50:43,140 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 358 of 898 [2023-08-27 12:50:43,140 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 12:50:43,260 INFO L124 PetriNetUnfolderBase]: 173/300 cut-off events. [2023-08-27 12:50:43,260 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 12:50:43,261 INFO L83 FinitePrefix]: Finished finitePrefix Result has 623 conditions, 300 events. 173/300 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 997 event pairs, 173 based on Foata normal form. 0/192 useless extension candidates. Maximal degree in co-relation 609. Up to 300 conditions per place. [2023-08-27 12:50:43,262 INFO L140 encePairwiseOnDemand]: 895/898 looper letters, 19 selfloop transitions, 1 changer transitions 0/20 dead transitions. [2023-08-27 12:50:43,262 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 20 transitions, 96 flow [2023-08-27 12:50:43,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 12:50:43,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 12:50:43,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1096 transitions. [2023-08-27 12:50:43,265 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40682999257609503 [2023-08-27 12:50:43,265 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1096 transitions. [2023-08-27 12:50:43,265 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1096 transitions. [2023-08-27 12:50:43,266 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 12:50:43,266 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1096 transitions. [2023-08-27 12:50:43,268 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 365.3333333333333) internal successors, (1096), 3 states have internal predecessors, (1096), 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) [2023-08-27 12:50:43,271 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 898.0) internal successors, (3592), 4 states have internal predecessors, (3592), 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) [2023-08-27 12:50:43,271 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 898.0) internal successors, (3592), 4 states have internal predecessors, (3592), 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) [2023-08-27 12:50:43,271 INFO L175 Difference]: Start difference. First operand has 36 places, 22 transitions, 60 flow. Second operand 3 states and 1096 transitions. [2023-08-27 12:50:43,271 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 20 transitions, 96 flow [2023-08-27 12:50:43,272 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 20 transitions, 95 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 12:50:43,273 INFO L231 Difference]: Finished difference. Result has 35 places, 20 transitions, 57 flow [2023-08-27 12:50:43,273 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=898, PETRI_DIFFERENCE_MINUEND_FLOW=55, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=57, PETRI_PLACES=35, PETRI_TRANSITIONS=20} [2023-08-27 12:50:43,275 INFO L281 CegarLoopForPetriNet]: 62 programPoint places, -27 predicate places. [2023-08-27 12:50:43,275 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 20 transitions, 57 flow [2023-08-27 12:50:43,275 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 359.6666666666667) internal successors, (1079), 3 states have internal predecessors, (1079), 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) [2023-08-27 12:50:43,275 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 12:50:43,276 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-27 12:50:43,276 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-27 12:50:43,276 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread2Err8ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 73 more)] === [2023-08-27 12:50:43,276 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 12:50:43,276 INFO L85 PathProgramCache]: Analyzing trace with hash 1566685300, now seen corresponding path program 1 times [2023-08-27 12:50:43,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 12:50:43,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1394287705] [2023-08-27 12:50:43,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 12:50:43,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 12:50:43,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 12:50:43,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 12:50:43,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 12:50:43,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1394287705] [2023-08-27 12:50:43,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1394287705] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 12:50:43,314 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 12:50:43,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 12:50:43,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584087198] [2023-08-27 12:50:43,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 12:50:43,315 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 12:50:43,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 12:50:43,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 12:50:43,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 12:50:43,316 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 358 out of 898 [2023-08-27 12:50:43,317 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 20 transitions, 57 flow. Second operand has 3 states, 3 states have (on average 359.6666666666667) internal successors, (1079), 3 states have internal predecessors, (1079), 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) [2023-08-27 12:50:43,317 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 12:50:43,317 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 358 of 898 [2023-08-27 12:50:43,317 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 12:50:43,397 INFO L124 PetriNetUnfolderBase]: 93/172 cut-off events. [2023-08-27 12:50:43,398 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 12:50:43,398 INFO L83 FinitePrefix]: Finished finitePrefix Result has 366 conditions, 172 events. 93/172 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 472 event pairs, 93 based on Foata normal form. 0/130 useless extension candidates. Maximal degree in co-relation 351. Up to 172 conditions per place. [2023-08-27 12:50:43,399 INFO L140 encePairwiseOnDemand]: 895/898 looper letters, 17 selfloop transitions, 1 changer transitions 0/18 dead transitions. [2023-08-27 12:50:43,399 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 18 transitions, 89 flow [2023-08-27 12:50:43,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 12:50:43,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 12:50:43,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1094 transitions. [2023-08-27 12:50:43,402 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4060876020786934 [2023-08-27 12:50:43,402 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1094 transitions. [2023-08-27 12:50:43,402 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1094 transitions. [2023-08-27 12:50:43,403 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 12:50:43,403 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1094 transitions. [2023-08-27 12:50:43,405 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 364.6666666666667) internal successors, (1094), 3 states have internal predecessors, (1094), 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) [2023-08-27 12:50:43,408 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 898.0) internal successors, (3592), 4 states have internal predecessors, (3592), 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) [2023-08-27 12:50:43,408 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 898.0) internal successors, (3592), 4 states have internal predecessors, (3592), 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) [2023-08-27 12:50:43,409 INFO L175 Difference]: Start difference. First operand has 35 places, 20 transitions, 57 flow. Second operand 3 states and 1094 transitions. [2023-08-27 12:50:43,409 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 18 transitions, 89 flow [2023-08-27 12:50:43,409 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 18 transitions, 88 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 12:50:43,410 INFO L231 Difference]: Finished difference. Result has 34 places, 18 transitions, 54 flow [2023-08-27 12:50:43,410 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=898, PETRI_DIFFERENCE_MINUEND_FLOW=52, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=54, PETRI_PLACES=34, PETRI_TRANSITIONS=18} [2023-08-27 12:50:43,412 INFO L281 CegarLoopForPetriNet]: 62 programPoint places, -28 predicate places. [2023-08-27 12:50:43,412 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 18 transitions, 54 flow [2023-08-27 12:50:43,412 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 359.6666666666667) internal successors, (1079), 3 states have internal predecessors, (1079), 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) [2023-08-27 12:50:43,412 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 12:50:43,412 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-27 12:50:43,412 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-27 12:50:43,413 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread2Err10ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 73 more)] === [2023-08-27 12:50:43,413 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 12:50:43,413 INFO L85 PathProgramCache]: Analyzing trace with hash 1566685297, now seen corresponding path program 1 times [2023-08-27 12:50:43,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 12:50:43,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030928278] [2023-08-27 12:50:43,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 12:50:43,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 12:50:43,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 12:50:43,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 12:50:43,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 12:50:43,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030928278] [2023-08-27 12:50:43,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1030928278] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 12:50:43,448 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 12:50:43,448 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 12:50:43,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092956696] [2023-08-27 12:50:43,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 12:50:43,449 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 12:50:43,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 12:50:43,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 12:50:43,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 12:50:43,450 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 358 out of 898 [2023-08-27 12:50:43,451 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 18 transitions, 54 flow. Second operand has 3 states, 3 states have (on average 359.6666666666667) internal successors, (1079), 3 states have internal predecessors, (1079), 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) [2023-08-27 12:50:43,451 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 12:50:43,451 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 358 of 898 [2023-08-27 12:50:43,451 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 12:50:43,507 INFO L124 PetriNetUnfolderBase]: 37/80 cut-off events. [2023-08-27 12:50:43,507 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 12:50:43,507 INFO L83 FinitePrefix]: Finished finitePrefix Result has 181 conditions, 80 events. 37/80 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 150 event pairs, 37 based on Foata normal form. 0/80 useless extension candidates. Maximal degree in co-relation 165. Up to 80 conditions per place. [2023-08-27 12:50:43,507 INFO L140 encePairwiseOnDemand]: 895/898 looper letters, 15 selfloop transitions, 1 changer transitions 0/16 dead transitions. [2023-08-27 12:50:43,507 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 16 transitions, 82 flow [2023-08-27 12:50:43,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 12:50:43,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 12:50:43,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1092 transitions. [2023-08-27 12:50:43,510 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4053452115812918 [2023-08-27 12:50:43,511 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1092 transitions. [2023-08-27 12:50:43,511 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1092 transitions. [2023-08-27 12:50:43,511 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 12:50:43,511 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1092 transitions. [2023-08-27 12:50:43,513 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 364.0) internal successors, (1092), 3 states have internal predecessors, (1092), 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) [2023-08-27 12:50:43,516 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 898.0) internal successors, (3592), 4 states have internal predecessors, (3592), 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) [2023-08-27 12:50:43,517 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 898.0) internal successors, (3592), 4 states have internal predecessors, (3592), 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) [2023-08-27 12:50:43,517 INFO L175 Difference]: Start difference. First operand has 34 places, 18 transitions, 54 flow. Second operand 3 states and 1092 transitions. [2023-08-27 12:50:43,517 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 16 transitions, 82 flow [2023-08-27 12:50:43,517 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 16 transitions, 81 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 12:50:43,518 INFO L231 Difference]: Finished difference. Result has 33 places, 16 transitions, 51 flow [2023-08-27 12:50:43,518 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=898, PETRI_DIFFERENCE_MINUEND_FLOW=49, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=51, PETRI_PLACES=33, PETRI_TRANSITIONS=16} [2023-08-27 12:50:43,520 INFO L281 CegarLoopForPetriNet]: 62 programPoint places, -29 predicate places. [2023-08-27 12:50:43,520 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 16 transitions, 51 flow [2023-08-27 12:50:43,520 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 359.6666666666667) internal successors, (1079), 3 states have internal predecessors, (1079), 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) [2023-08-27 12:50:43,520 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 12:50:43,520 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 12:50:43,520 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-27 12:50:43,520 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 73 more)] === [2023-08-27 12:50:43,521 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 12:50:43,521 INFO L85 PathProgramCache]: Analyzing trace with hash 1313744900, now seen corresponding path program 1 times [2023-08-27 12:50:43,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 12:50:43,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2035188295] [2023-08-27 12:50:43,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 12:50:43,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 12:50:43,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 12:50:45,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 12:50:45,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 12:50:45,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2035188295] [2023-08-27 12:50:45,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2035188295] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 12:50:45,752 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 12:50:45,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-27 12:50:45,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942103954] [2023-08-27 12:50:45,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 12:50:45,752 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-27 12:50:45,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 12:50:45,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-27 12:50:45,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-27 12:50:45,754 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 331 out of 898 [2023-08-27 12:50:45,755 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 16 transitions, 51 flow. Second operand has 5 states, 5 states have (on average 334.2) internal successors, (1671), 5 states have internal predecessors, (1671), 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) [2023-08-27 12:50:45,756 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 12:50:45,756 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 331 of 898 [2023-08-27 12:50:45,756 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 12:50:45,976 INFO L124 PetriNetUnfolderBase]: 40/106 cut-off events. [2023-08-27 12:50:45,976 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-08-27 12:50:45,977 INFO L83 FinitePrefix]: Finished finitePrefix Result has 235 conditions, 106 events. 40/106 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 335 event pairs, 1 based on Foata normal form. 1/107 useless extension candidates. Maximal degree in co-relation 218. Up to 48 conditions per place. [2023-08-27 12:50:45,977 INFO L140 encePairwiseOnDemand]: 893/898 looper letters, 30 selfloop transitions, 5 changer transitions 9/44 dead transitions. [2023-08-27 12:50:45,977 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 44 transitions, 205 flow [2023-08-27 12:50:45,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-27 12:50:45,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-27 12:50:45,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2031 transitions. [2023-08-27 12:50:45,982 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3769487750556793 [2023-08-27 12:50:45,982 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2031 transitions. [2023-08-27 12:50:45,982 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2031 transitions. [2023-08-27 12:50:45,983 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 12:50:45,984 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2031 transitions. [2023-08-27 12:50:45,987 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 338.5) internal successors, (2031), 6 states have internal predecessors, (2031), 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) [2023-08-27 12:50:45,992 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 898.0) internal successors, (6286), 7 states have internal predecessors, (6286), 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) [2023-08-27 12:50:45,994 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 898.0) internal successors, (6286), 7 states have internal predecessors, (6286), 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) [2023-08-27 12:50:45,994 INFO L175 Difference]: Start difference. First operand has 33 places, 16 transitions, 51 flow. Second operand 6 states and 2031 transitions. [2023-08-27 12:50:45,994 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 44 transitions, 205 flow [2023-08-27 12:50:45,994 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 44 transitions, 204 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 12:50:45,995 INFO L231 Difference]: Finished difference. Result has 39 places, 18 transitions, 69 flow [2023-08-27 12:50:45,995 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=898, PETRI_DIFFERENCE_MINUEND_FLOW=50, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=69, PETRI_PLACES=39, PETRI_TRANSITIONS=18} [2023-08-27 12:50:45,996 INFO L281 CegarLoopForPetriNet]: 62 programPoint places, -23 predicate places. [2023-08-27 12:50:45,996 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 18 transitions, 69 flow [2023-08-27 12:50:45,996 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 334.2) internal successors, (1671), 5 states have internal predecessors, (1671), 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) [2023-08-27 12:50:45,997 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 12:50:45,997 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 12:50:45,997 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-27 12:50:45,997 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 73 more)] === [2023-08-27 12:50:45,997 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 12:50:45,997 INFO L85 PathProgramCache]: Analyzing trace with hash 1766429654, now seen corresponding path program 2 times [2023-08-27 12:50:45,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 12:50:45,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408271617] [2023-08-27 12:50:45,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 12:50:45,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 12:50:46,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 12:50:47,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 12:50:47,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 12:50:47,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1408271617] [2023-08-27 12:50:47,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1408271617] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 12:50:47,471 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 12:50:47,471 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-27 12:50:47,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388865615] [2023-08-27 12:50:47,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 12:50:47,471 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-27 12:50:47,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 12:50:47,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-27 12:50:47,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-27 12:50:47,473 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 331 out of 898 [2023-08-27 12:50:47,474 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 18 transitions, 69 flow. Second operand has 5 states, 5 states have (on average 334.2) internal successors, (1671), 5 states have internal predecessors, (1671), 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) [2023-08-27 12:50:47,474 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 12:50:47,474 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 331 of 898 [2023-08-27 12:50:47,474 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 12:50:47,657 INFO L124 PetriNetUnfolderBase]: 36/114 cut-off events. [2023-08-27 12:50:47,657 INFO L125 PetriNetUnfolderBase]: For 55/55 co-relation queries the response was YES. [2023-08-27 12:50:47,658 INFO L83 FinitePrefix]: Finished finitePrefix Result has 305 conditions, 114 events. 36/114 cut-off events. For 55/55 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 401 event pairs, 2 based on Foata normal form. 1/115 useless extension candidates. Maximal degree in co-relation 291. Up to 45 conditions per place. [2023-08-27 12:50:47,658 INFO L140 encePairwiseOnDemand]: 893/898 looper letters, 32 selfloop transitions, 6 changer transitions 9/47 dead transitions. [2023-08-27 12:50:47,658 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 47 transitions, 247 flow [2023-08-27 12:50:47,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-27 12:50:47,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-27 12:50:47,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2032 transitions. [2023-08-27 12:50:47,664 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3771343726800297 [2023-08-27 12:50:47,664 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2032 transitions. [2023-08-27 12:50:47,664 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2032 transitions. [2023-08-27 12:50:47,665 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 12:50:47,665 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2032 transitions. [2023-08-27 12:50:47,668 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 338.6666666666667) internal successors, (2032), 6 states have internal predecessors, (2032), 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) [2023-08-27 12:50:47,674 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 898.0) internal successors, (6286), 7 states have internal predecessors, (6286), 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) [2023-08-27 12:50:47,675 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 898.0) internal successors, (6286), 7 states have internal predecessors, (6286), 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) [2023-08-27 12:50:47,675 INFO L175 Difference]: Start difference. First operand has 39 places, 18 transitions, 69 flow. Second operand 6 states and 2032 transitions. [2023-08-27 12:50:47,675 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 47 transitions, 247 flow [2023-08-27 12:50:47,676 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 47 transitions, 243 flow, removed 2 selfloop flow, removed 1 redundant places. [2023-08-27 12:50:47,677 INFO L231 Difference]: Finished difference. Result has 46 places, 21 transitions, 107 flow [2023-08-27 12:50:47,678 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=898, PETRI_DIFFERENCE_MINUEND_FLOW=67, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=107, PETRI_PLACES=46, PETRI_TRANSITIONS=21} [2023-08-27 12:50:47,678 INFO L281 CegarLoopForPetriNet]: 62 programPoint places, -16 predicate places. [2023-08-27 12:50:47,678 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 21 transitions, 107 flow [2023-08-27 12:50:47,679 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 334.2) internal successors, (1671), 5 states have internal predecessors, (1671), 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) [2023-08-27 12:50:47,679 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 12:50:47,679 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 12:50:47,679 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-08-27 12:50:47,679 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 73 more)] === [2023-08-27 12:50:47,679 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 12:50:47,679 INFO L85 PathProgramCache]: Analyzing trace with hash -1116597358, now seen corresponding path program 3 times [2023-08-27 12:50:47,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 12:50:47,680 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769646604] [2023-08-27 12:50:47,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 12:50:47,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 12:50:47,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 12:50:48,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 12:50:48,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 12:50:48,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [769646604] [2023-08-27 12:50:48,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [769646604] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 12:50:48,978 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 12:50:48,978 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-27 12:50:48,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536911442] [2023-08-27 12:50:48,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 12:50:48,979 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-27 12:50:48,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 12:50:48,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-27 12:50:48,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-27 12:50:48,981 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 331 out of 898 [2023-08-27 12:50:48,982 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 21 transitions, 107 flow. Second operand has 5 states, 5 states have (on average 334.2) internal successors, (1671), 5 states have internal predecessors, (1671), 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) [2023-08-27 12:50:48,982 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 12:50:48,982 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 331 of 898 [2023-08-27 12:50:48,982 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 12:50:49,131 INFO L124 PetriNetUnfolderBase]: 33/101 cut-off events. [2023-08-27 12:50:49,132 INFO L125 PetriNetUnfolderBase]: For 157/157 co-relation queries the response was YES. [2023-08-27 12:50:49,132 INFO L83 FinitePrefix]: Finished finitePrefix Result has 339 conditions, 101 events. 33/101 cut-off events. For 157/157 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 326 event pairs, 7 based on Foata normal form. 1/102 useless extension candidates. Maximal degree in co-relation 324. Up to 48 conditions per place. [2023-08-27 12:50:49,132 INFO L140 encePairwiseOnDemand]: 893/898 looper letters, 23 selfloop transitions, 8 changer transitions 10/41 dead transitions. [2023-08-27 12:50:49,132 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 41 transitions, 255 flow [2023-08-27 12:50:49,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-27 12:50:49,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-27 12:50:49,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1693 transitions. [2023-08-27 12:50:49,137 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3770601336302895 [2023-08-27 12:50:49,137 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1693 transitions. [2023-08-27 12:50:49,137 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1693 transitions. [2023-08-27 12:50:49,138 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 12:50:49,138 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1693 transitions. [2023-08-27 12:50:49,141 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 338.6) internal successors, (1693), 5 states have internal predecessors, (1693), 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) [2023-08-27 12:50:49,147 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 898.0) internal successors, (5388), 6 states have internal predecessors, (5388), 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) [2023-08-27 12:50:49,148 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 898.0) internal successors, (5388), 6 states have internal predecessors, (5388), 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) [2023-08-27 12:50:49,148 INFO L175 Difference]: Start difference. First operand has 46 places, 21 transitions, 107 flow. Second operand 5 states and 1693 transitions. [2023-08-27 12:50:49,148 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 41 transitions, 255 flow [2023-08-27 12:50:49,151 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 41 transitions, 243 flow, removed 5 selfloop flow, removed 2 redundant places. [2023-08-27 12:50:49,151 INFO L231 Difference]: Finished difference. Result has 48 places, 21 transitions, 126 flow [2023-08-27 12:50:49,151 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=898, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=126, PETRI_PLACES=48, PETRI_TRANSITIONS=21} [2023-08-27 12:50:49,152 INFO L281 CegarLoopForPetriNet]: 62 programPoint places, -14 predicate places. [2023-08-27 12:50:49,152 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 21 transitions, 126 flow [2023-08-27 12:50:49,152 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 334.2) internal successors, (1671), 5 states have internal predecessors, (1671), 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) [2023-08-27 12:50:49,152 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 12:50:49,152 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 12:50:49,152 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-08-27 12:50:49,153 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 73 more)] === [2023-08-27 12:50:49,153 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 12:50:49,153 INFO L85 PathProgramCache]: Analyzing trace with hash -1213169028, now seen corresponding path program 4 times [2023-08-27 12:50:49,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 12:50:49,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475997609] [2023-08-27 12:50:49,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 12:50:49,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 12:50:49,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 12:50:50,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 12:50:50,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 12:50:50,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1475997609] [2023-08-27 12:50:50,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1475997609] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 12:50:50,448 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 12:50:50,448 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-27 12:50:50,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913399] [2023-08-27 12:50:50,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 12:50:50,448 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-27 12:50:50,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 12:50:50,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-27 12:50:50,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-27 12:50:50,450 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 331 out of 898 [2023-08-27 12:50:50,451 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 21 transitions, 126 flow. Second operand has 5 states, 5 states have (on average 334.2) internal successors, (1671), 5 states have internal predecessors, (1671), 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) [2023-08-27 12:50:50,451 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 12:50:50,451 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 331 of 898 [2023-08-27 12:50:50,451 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 12:50:50,572 INFO L124 PetriNetUnfolderBase]: 17/57 cut-off events. [2023-08-27 12:50:50,572 INFO L125 PetriNetUnfolderBase]: For 105/105 co-relation queries the response was YES. [2023-08-27 12:50:50,572 INFO L83 FinitePrefix]: Finished finitePrefix Result has 230 conditions, 57 events. 17/57 cut-off events. For 105/105 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 128 event pairs, 2 based on Foata normal form. 1/58 useless extension candidates. Maximal degree in co-relation 204. Up to 22 conditions per place. [2023-08-27 12:50:50,573 INFO L140 encePairwiseOnDemand]: 893/898 looper letters, 18 selfloop transitions, 5 changer transitions 9/32 dead transitions. [2023-08-27 12:50:50,573 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 32 transitions, 217 flow [2023-08-27 12:50:50,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-27 12:50:50,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-27 12:50:50,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1685 transitions. [2023-08-27 12:50:50,577 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3752783964365256 [2023-08-27 12:50:50,577 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1685 transitions. [2023-08-27 12:50:50,578 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1685 transitions. [2023-08-27 12:50:50,578 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 12:50:50,579 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1685 transitions. [2023-08-27 12:50:50,581 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 337.0) internal successors, (1685), 5 states have internal predecessors, (1685), 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) [2023-08-27 12:50:50,585 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 898.0) internal successors, (5388), 6 states have internal predecessors, (5388), 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) [2023-08-27 12:50:50,586 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 898.0) internal successors, (5388), 6 states have internal predecessors, (5388), 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) [2023-08-27 12:50:50,586 INFO L175 Difference]: Start difference. First operand has 48 places, 21 transitions, 126 flow. Second operand 5 states and 1685 transitions. [2023-08-27 12:50:50,586 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 32 transitions, 217 flow [2023-08-27 12:50:50,587 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 32 transitions, 192 flow, removed 4 selfloop flow, removed 6 redundant places. [2023-08-27 12:50:50,587 INFO L231 Difference]: Finished difference. Result has 46 places, 19 transitions, 102 flow [2023-08-27 12:50:50,587 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=898, PETRI_DIFFERENCE_MINUEND_FLOW=102, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=102, PETRI_PLACES=46, PETRI_TRANSITIONS=19} [2023-08-27 12:50:50,588 INFO L281 CegarLoopForPetriNet]: 62 programPoint places, -16 predicate places. [2023-08-27 12:50:50,588 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 19 transitions, 102 flow [2023-08-27 12:50:50,588 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 334.2) internal successors, (1671), 5 states have internal predecessors, (1671), 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) [2023-08-27 12:50:50,588 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 12:50:50,588 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 12:50:50,589 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-08-27 12:50:50,589 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 73 more)] === [2023-08-27 12:50:50,589 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 12:50:50,589 INFO L85 PathProgramCache]: Analyzing trace with hash -2053080942, now seen corresponding path program 5 times [2023-08-27 12:50:50,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 12:50:50,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359715427] [2023-08-27 12:50:50,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 12:50:50,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 12:50:50,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 12:50:51,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 12:50:51,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 12:50:51,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1359715427] [2023-08-27 12:50:51,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1359715427] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 12:50:51,964 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 12:50:51,964 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-27 12:50:51,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81969381] [2023-08-27 12:50:51,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 12:50:51,965 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-27 12:50:51,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 12:50:51,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-27 12:50:51,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-27 12:50:51,967 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 331 out of 898 [2023-08-27 12:50:51,968 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 19 transitions, 102 flow. Second operand has 5 states, 5 states have (on average 334.2) internal successors, (1671), 5 states have internal predecessors, (1671), 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) [2023-08-27 12:50:51,968 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 12:50:51,968 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 331 of 898 [2023-08-27 12:50:51,968 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 12:50:52,115 INFO L124 PetriNetUnfolderBase]: 8/40 cut-off events. [2023-08-27 12:50:52,115 INFO L125 PetriNetUnfolderBase]: For 35/35 co-relation queries the response was YES. [2023-08-27 12:50:52,115 INFO L83 FinitePrefix]: Finished finitePrefix Result has 153 conditions, 40 events. 8/40 cut-off events. For 35/35 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 60 event pairs, 0 based on Foata normal form. 1/41 useless extension candidates. Maximal degree in co-relation 129. Up to 19 conditions per place. [2023-08-27 12:50:52,116 INFO L140 encePairwiseOnDemand]: 893/898 looper letters, 15 selfloop transitions, 3 changer transitions 12/30 dead transitions. [2023-08-27 12:50:52,116 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 30 transitions, 187 flow [2023-08-27 12:50:52,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-27 12:50:52,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-27 12:50:52,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2017 transitions. [2023-08-27 12:50:52,122 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.37435040831477356 [2023-08-27 12:50:52,122 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2017 transitions. [2023-08-27 12:50:52,122 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2017 transitions. [2023-08-27 12:50:52,123 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 12:50:52,123 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2017 transitions. [2023-08-27 12:50:52,127 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 336.1666666666667) internal successors, (2017), 6 states have internal predecessors, (2017), 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) [2023-08-27 12:50:52,132 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 898.0) internal successors, (6286), 7 states have internal predecessors, (6286), 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) [2023-08-27 12:50:52,133 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 898.0) internal successors, (6286), 7 states have internal predecessors, (6286), 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) [2023-08-27 12:50:52,133 INFO L175 Difference]: Start difference. First operand has 46 places, 19 transitions, 102 flow. Second operand 6 states and 2017 transitions. [2023-08-27 12:50:52,133 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 30 transitions, 187 flow [2023-08-27 12:50:52,134 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 30 transitions, 162 flow, removed 1 selfloop flow, removed 7 redundant places. [2023-08-27 12:50:52,136 INFO L231 Difference]: Finished difference. Result has 45 places, 16 transitions, 69 flow [2023-08-27 12:50:52,137 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=898, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=69, PETRI_PLACES=45, PETRI_TRANSITIONS=16} [2023-08-27 12:50:52,137 INFO L281 CegarLoopForPetriNet]: 62 programPoint places, -17 predicate places. [2023-08-27 12:50:52,137 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 16 transitions, 69 flow [2023-08-27 12:50:52,138 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 334.2) internal successors, (1671), 5 states have internal predecessors, (1671), 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) [2023-08-27 12:50:52,138 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 12:50:52,138 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 12:50:52,138 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-08-27 12:50:52,138 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 73 more)] === [2023-08-27 12:50:52,138 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 12:50:52,139 INFO L85 PathProgramCache]: Analyzing trace with hash -1135130752, now seen corresponding path program 6 times [2023-08-27 12:50:52,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 12:50:52,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674301769] [2023-08-27 12:50:52,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 12:50:52,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 12:50:52,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 12:50:53,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 12:50:53,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 12:50:53,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1674301769] [2023-08-27 12:50:53,348 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1674301769] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 12:50:53,348 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 12:50:53,348 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-27 12:50:53,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95330143] [2023-08-27 12:50:53,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 12:50:53,348 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-27 12:50:53,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 12:50:53,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-27 12:50:53,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-27 12:50:53,351 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 331 out of 898 [2023-08-27 12:50:53,352 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 16 transitions, 69 flow. Second operand has 5 states, 5 states have (on average 334.2) internal successors, (1671), 5 states have internal predecessors, (1671), 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) [2023-08-27 12:50:53,352 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 12:50:53,352 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 331 of 898 [2023-08-27 12:50:53,352 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 12:50:53,456 INFO L124 PetriNetUnfolderBase]: 3/21 cut-off events. [2023-08-27 12:50:53,457 INFO L125 PetriNetUnfolderBase]: For 9/9 co-relation queries the response was YES. [2023-08-27 12:50:53,457 INFO L83 FinitePrefix]: Finished finitePrefix Result has 80 conditions, 21 events. 3/21 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 11 event pairs, 0 based on Foata normal form. 1/22 useless extension candidates. Maximal degree in co-relation 75. Up to 8 conditions per place. [2023-08-27 12:50:53,457 INFO L140 encePairwiseOnDemand]: 893/898 looper letters, 0 selfloop transitions, 0 changer transitions 18/18 dead transitions. [2023-08-27 12:50:53,457 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 18 transitions, 107 flow [2023-08-27 12:50:53,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-27 12:50:53,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-27 12:50:53,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2005 transitions. [2023-08-27 12:50:53,463 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.37212323682256865 [2023-08-27 12:50:53,463 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2005 transitions. [2023-08-27 12:50:53,463 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2005 transitions. [2023-08-27 12:50:53,464 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 12:50:53,465 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2005 transitions. [2023-08-27 12:50:53,469 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 334.1666666666667) internal successors, (2005), 6 states have internal predecessors, (2005), 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) [2023-08-27 12:50:53,473 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 898.0) internal successors, (6286), 7 states have internal predecessors, (6286), 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) [2023-08-27 12:50:53,474 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 898.0) internal successors, (6286), 7 states have internal predecessors, (6286), 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) [2023-08-27 12:50:53,474 INFO L175 Difference]: Start difference. First operand has 45 places, 16 transitions, 69 flow. Second operand 6 states and 2005 transitions. [2023-08-27 12:50:53,474 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 18 transitions, 107 flow [2023-08-27 12:50:53,475 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 18 transitions, 91 flow, removed 0 selfloop flow, removed 7 redundant places. [2023-08-27 12:50:53,475 INFO L231 Difference]: Finished difference. Result has 40 places, 0 transitions, 0 flow [2023-08-27 12:50:53,475 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=898, PETRI_DIFFERENCE_MINUEND_FLOW=49, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=15, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=40, PETRI_TRANSITIONS=0} [2023-08-27 12:50:53,476 INFO L281 CegarLoopForPetriNet]: 62 programPoint places, -22 predicate places. [2023-08-27 12:50:53,476 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 0 transitions, 0 flow [2023-08-27 12:50:53,476 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 334.2) internal successors, (1671), 5 states have internal predecessors, (1671), 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) [2023-08-27 12:50:53,479 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (75 of 76 remaining) [2023-08-27 12:50:53,479 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (74 of 76 remaining) [2023-08-27 12:50:53,479 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (73 of 76 remaining) [2023-08-27 12:50:53,482 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (72 of 76 remaining) [2023-08-27 12:50:53,482 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (71 of 76 remaining) [2023-08-27 12:50:53,482 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (70 of 76 remaining) [2023-08-27 12:50:53,482 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (69 of 76 remaining) [2023-08-27 12:50:53,482 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (68 of 76 remaining) [2023-08-27 12:50:53,482 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (67 of 76 remaining) [2023-08-27 12:50:53,482 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (66 of 76 remaining) [2023-08-27 12:50:53,482 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (65 of 76 remaining) [2023-08-27 12:50:53,483 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (64 of 76 remaining) [2023-08-27 12:50:53,483 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (63 of 76 remaining) [2023-08-27 12:50:53,483 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (62 of 76 remaining) [2023-08-27 12:50:53,483 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (61 of 76 remaining) [2023-08-27 12:50:53,483 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (60 of 76 remaining) [2023-08-27 12:50:53,483 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (59 of 76 remaining) [2023-08-27 12:50:53,483 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (58 of 76 remaining) [2023-08-27 12:50:53,483 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (57 of 76 remaining) [2023-08-27 12:50:53,483 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (56 of 76 remaining) [2023-08-27 12:50:53,483 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (55 of 76 remaining) [2023-08-27 12:50:53,484 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (54 of 76 remaining) [2023-08-27 12:50:53,484 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (53 of 76 remaining) [2023-08-27 12:50:53,484 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (52 of 76 remaining) [2023-08-27 12:50:53,484 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (51 of 76 remaining) [2023-08-27 12:50:53,484 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (50 of 76 remaining) [2023-08-27 12:50:53,484 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (49 of 76 remaining) [2023-08-27 12:50:53,484 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (48 of 76 remaining) [2023-08-27 12:50:53,484 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (47 of 76 remaining) [2023-08-27 12:50:53,484 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (46 of 76 remaining) [2023-08-27 12:50:53,484 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (45 of 76 remaining) [2023-08-27 12:50:53,484 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (44 of 76 remaining) [2023-08-27 12:50:53,485 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (43 of 76 remaining) [2023-08-27 12:50:53,485 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (42 of 76 remaining) [2023-08-27 12:50:53,486 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (41 of 76 remaining) [2023-08-27 12:50:53,486 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (40 of 76 remaining) [2023-08-27 12:50:53,486 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (39 of 76 remaining) [2023-08-27 12:50:53,486 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (38 of 76 remaining) [2023-08-27 12:50:53,486 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (37 of 76 remaining) [2023-08-27 12:50:53,486 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (36 of 76 remaining) [2023-08-27 12:50:53,486 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (35 of 76 remaining) [2023-08-27 12:50:53,486 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (34 of 76 remaining) [2023-08-27 12:50:53,486 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (33 of 76 remaining) [2023-08-27 12:50:53,487 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (32 of 76 remaining) [2023-08-27 12:50:53,487 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (31 of 76 remaining) [2023-08-27 12:50:53,487 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (30 of 76 remaining) [2023-08-27 12:50:53,487 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 76 remaining) [2023-08-27 12:50:53,487 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 76 remaining) [2023-08-27 12:50:53,487 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 76 remaining) [2023-08-27 12:50:53,487 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 76 remaining) [2023-08-27 12:50:53,487 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 76 remaining) [2023-08-27 12:50:53,487 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 76 remaining) [2023-08-27 12:50:53,488 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 76 remaining) [2023-08-27 12:50:53,488 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 76 remaining) [2023-08-27 12:50:53,488 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 76 remaining) [2023-08-27 12:50:53,488 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 76 remaining) [2023-08-27 12:50:53,488 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 76 remaining) [2023-08-27 12:50:53,488 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 76 remaining) [2023-08-27 12:50:53,488 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 76 remaining) [2023-08-27 12:50:53,488 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 76 remaining) [2023-08-27 12:50:53,488 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 76 remaining) [2023-08-27 12:50:53,488 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 76 remaining) [2023-08-27 12:50:53,489 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 76 remaining) [2023-08-27 12:50:53,489 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 76 remaining) [2023-08-27 12:50:53,489 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 76 remaining) [2023-08-27 12:50:53,489 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 76 remaining) [2023-08-27 12:50:53,489 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 76 remaining) [2023-08-27 12:50:53,489 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 76 remaining) [2023-08-27 12:50:53,489 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 76 remaining) [2023-08-27 12:50:53,489 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 76 remaining) [2023-08-27 12:50:53,489 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 76 remaining) [2023-08-27 12:50:53,489 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 76 remaining) [2023-08-27 12:50:53,489 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 76 remaining) [2023-08-27 12:50:53,490 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 76 remaining) [2023-08-27 12:50:53,490 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 76 remaining) [2023-08-27 12:50:53,490 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 76 remaining) [2023-08-27 12:50:53,490 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-08-27 12:50:53,490 INFO L445 BasicCegarLoop]: Path program histogram: [6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 12:50:53,496 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-27 12:50:53,496 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-27 12:50:53,499 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.08 12:50:53 BasicIcfg [2023-08-27 12:50:53,499 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-27 12:50:53,499 INFO L158 Benchmark]: Toolchain (without parser) took 52753.00ms. Allocated memory was 373.3MB in the beginning and 1.1GB in the end (delta: 763.4MB). Free memory was 350.1MB in the beginning and 980.2MB in the end (delta: -630.1MB). Peak memory consumption was 135.0MB. Max. memory is 16.0GB. [2023-08-27 12:50:53,500 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 373.3MB. Free memory is still 350.5MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-27 12:50:53,500 INFO L158 Benchmark]: CACSL2BoogieTranslator took 255.98ms. Allocated memory is still 373.3MB. Free memory was 350.1MB in the beginning and 338.5MB in the end (delta: 11.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. [2023-08-27 12:50:53,500 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.91ms. Allocated memory is still 373.3MB. Free memory was 338.5MB in the beginning and 335.8MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. [2023-08-27 12:50:53,500 INFO L158 Benchmark]: Boogie Preprocessor took 46.68ms. Allocated memory is still 373.3MB. Free memory was 335.8MB in the beginning and 334.0MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-27 12:50:53,500 INFO L158 Benchmark]: RCFGBuilder took 675.63ms. Allocated memory is still 373.3MB. Free memory was 334.0MB in the beginning and 305.7MB in the end (delta: 28.3MB). Peak memory consumption was 29.4MB. Max. memory is 16.0GB. [2023-08-27 12:50:53,500 INFO L158 Benchmark]: TraceAbstraction took 51707.03ms. Allocated memory was 373.3MB in the beginning and 1.1GB in the end (delta: 763.4MB). Free memory was 305.0MB in the beginning and 980.2MB in the end (delta: -675.2MB). Peak memory consumption was 90.9MB. Max. memory is 16.0GB. [2023-08-27 12:50:53,502 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 373.3MB. Free memory is still 350.5MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 255.98ms. Allocated memory is still 373.3MB. Free memory was 350.1MB in the beginning and 338.5MB in the end (delta: 11.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 61.91ms. Allocated memory is still 373.3MB. Free memory was 338.5MB in the beginning and 335.8MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. * Boogie Preprocessor took 46.68ms. Allocated memory is still 373.3MB. Free memory was 335.8MB in the beginning and 334.0MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.0GB. * RCFGBuilder took 675.63ms. Allocated memory is still 373.3MB. Free memory was 334.0MB in the beginning and 305.7MB in the end (delta: 28.3MB). Peak memory consumption was 29.4MB. Max. memory is 16.0GB. * TraceAbstraction took 51707.03ms. Allocated memory was 373.3MB in the beginning and 1.1GB in the end (delta: 763.4MB). Free memory was 305.0MB in the beginning and 980.2MB in the end (delta: -675.2MB). Peak memory consumption was 90.9MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 34.0s, 353 PlacesBefore, 62 PlacesAfterwards, 368 TransitionsBefore, 52 TransitionsAfterwards, 56238 CoEnabledTransitionPairs, 10 FixpointIterations, 69 TrivialSequentialCompositions, 356 ConcurrentSequentialCompositions, 3 TrivialYvCompositions, 63 ConcurrentYvCompositions, 25 ChoiceCompositions, 516 TotalNumberOfCompositions, 56186 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 56186, independent: 56186, independent conditional: 0, independent unconditional: 56186, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 32456, independent: 32456, independent conditional: 0, independent unconditional: 32456, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 56186, independent: 23730, independent conditional: 0, independent unconditional: 23730, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 32456, unknown conditional: 0, unknown unconditional: 32456] , Statistics on independence cache: Total cache size (in pairs): 198, Positive cache size: 198, Positive conditional cache size: 0, Positive unconditional cache size: 198, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 94]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 94]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 95]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 95]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 96]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 96]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 94]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 94]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 95]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 95]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 96]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 96]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 94]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 94]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 95]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 95]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 96]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 96]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 94]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 94]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 95]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 95]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 96]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 96]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 94]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 94]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 95]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 95]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 96]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 96]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 94]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 94]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 95]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 95]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 96]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 96]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 21]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 613 locations, 76 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: 51.5s, OverallIterations: 18, TraceHistogramMax: 1, PathProgramHistogramMax: 6, EmptinessCheckTime: 0.0s, AutomataDifference: 7.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 34.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 486 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 486 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 23 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 697 IncrementalHoareTripleChecker+Invalid, 720 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 23 mSolverCounterUnsat, 0 mSDtfsCounter, 697 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 58 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=126occurred in iteration=15, InterpolantAutomatonStates: 70, 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, 0.8s SatisfiabilityAnalysisTime, 8.8s InterpolantComputationTime, 140 NumberOfCodeBlocks, 140 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 122 ConstructedInterpolants, 0 QuantifiedInterpolants, 1270 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 18 InterpolantComputations, 18 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 37 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-27 12:50:53,528 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...