/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 -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-node-subst.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-26 23:40:02,266 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-26 23:40:02,330 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 [2023-08-26 23:40:02,335 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-26 23:40:02,336 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-26 23:40:02,359 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-26 23:40:02,359 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-26 23:40:02,359 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-26 23:40:02,360 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-26 23:40:02,362 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-26 23:40:02,363 INFO L153 SettingsManager]: * Use SBE=true [2023-08-26 23:40:02,363 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-26 23:40:02,363 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-26 23:40:02,364 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-26 23:40:02,364 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-26 23:40:02,364 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-26 23:40:02,364 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-26 23:40:02,364 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-26 23:40:02,365 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-26 23:40:02,365 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-26 23:40:02,365 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-26 23:40:02,365 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-26 23:40:02,365 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-26 23:40:02,366 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-26 23:40:02,366 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-26 23:40:02,366 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-26 23:40:02,366 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-26 23:40:02,366 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 23:40:02,366 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-26 23:40:02,366 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-26 23:40:02,367 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-26 23:40:02,367 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-26 23:40:02,367 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-26 23:40:02,367 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-26 23:40:02,368 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-26 23:40:02,368 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2023-08-26 23:40:02,615 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-26 23:40:02,629 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-26 23:40:02,631 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-26 23:40:02,632 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-26 23:40:02,633 INFO L274 PluginConnector]: CDTParser initialized [2023-08-26 23:40:02,634 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-node-subst.wvr.c [2023-08-26 23:40:03,532 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-26 23:40:03,724 INFO L384 CDTParser]: Found 1 translation units. [2023-08-26 23:40:03,724 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-node-subst.wvr.c [2023-08-26 23:40:03,731 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2cb8dc40f/0865030f6d94414b8845168c4881552d/FLAG2b79357c7 [2023-08-26 23:40:03,741 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2cb8dc40f/0865030f6d94414b8845168c4881552d [2023-08-26 23:40:03,743 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-26 23:40:03,744 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-26 23:40:03,744 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-26 23:40:03,744 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-26 23:40:03,746 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-26 23:40:03,747 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 11:40:03" (1/1) ... [2023-08-26 23:40:03,748 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e4fefdd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 11:40:03, skipping insertion in model container [2023-08-26 23:40:03,748 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 11:40:03" (1/1) ... [2023-08-26 23:40:03,774 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-26 23:40:03,894 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 23:40:03,900 INFO L201 MainTranslator]: Completed pre-run [2023-08-26 23:40:03,922 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 23:40:03,931 INFO L206 MainTranslator]: Completed translation [2023-08-26 23:40:03,931 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 11:40:03 WrapperNode [2023-08-26 23:40:03,932 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-26 23:40:03,932 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-26 23:40:03,932 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-26 23:40:03,932 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-26 23:40:03,936 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 11:40:03" (1/1) ... [2023-08-26 23:40:03,944 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 11:40:03" (1/1) ... [2023-08-26 23:40:03,964 INFO L138 Inliner]: procedures = 27, calls = 67, calls flagged for inlining = 23, calls inlined = 35, statements flattened = 505 [2023-08-26 23:40:03,965 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-26 23:40:03,965 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-26 23:40:03,965 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-26 23:40:03,965 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-26 23:40:03,971 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 11:40:03" (1/1) ... [2023-08-26 23:40:03,971 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 11:40:03" (1/1) ... [2023-08-26 23:40:03,975 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 11:40:03" (1/1) ... [2023-08-26 23:40:03,975 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 11:40:03" (1/1) ... [2023-08-26 23:40:03,982 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 11:40:03" (1/1) ... [2023-08-26 23:40:03,986 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 11:40:03" (1/1) ... [2023-08-26 23:40:03,987 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 11:40:03" (1/1) ... [2023-08-26 23:40:03,989 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 11:40:03" (1/1) ... [2023-08-26 23:40:03,991 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-26 23:40:03,992 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-26 23:40:03,992 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-26 23:40:03,992 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-26 23:40:03,993 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 11:40:03" (1/1) ... [2023-08-26 23:40:03,996 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 23:40:04,004 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 23:40:04,016 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) [2023-08-26 23:40:04,031 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 [2023-08-26 23:40:04,058 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-26 23:40:04,058 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-26 23:40:04,058 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-26 23:40:04,058 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-26 23:40:04,058 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-26 23:40:04,059 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-26 23:40:04,059 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-26 23:40:04,059 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-26 23:40:04,059 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-08-26 23:40:04,059 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-08-26 23:40:04,059 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-26 23:40:04,060 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-26 23:40:04,060 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-26 23:40:04,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-26 23:40:04,060 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-26 23:40:04,062 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-26 23:40:04,180 INFO L236 CfgBuilder]: Building ICFG [2023-08-26 23:40:04,187 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-26 23:40:04,687 INFO L277 CfgBuilder]: Performing block encoding [2023-08-26 23:40:04,704 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-26 23:40:04,705 INFO L302 CfgBuilder]: Removed 6 assume(true) statements. [2023-08-26 23:40:04,707 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 11:40:04 BoogieIcfgContainer [2023-08-26 23:40:04,707 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-26 23:40:04,709 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-26 23:40:04,710 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-26 23:40:04,711 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-26 23:40:04,712 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.08 11:40:03" (1/3) ... [2023-08-26 23:40:04,712 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3be3904 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 11:40:04, skipping insertion in model container [2023-08-26 23:40:04,712 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 11:40:03" (2/3) ... [2023-08-26 23:40:04,712 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3be3904 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 11:40:04, skipping insertion in model container [2023-08-26 23:40:04,713 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 11:40:04" (3/3) ... [2023-08-26 23:40:04,713 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-node-subst.wvr.c [2023-08-26 23:40:04,724 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-26 23:40:04,724 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 43 error locations. [2023-08-26 23:40:04,724 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-26 23:40:04,829 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-08-26 23:40:04,864 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 586 places, 623 transitions, 1270 flow [2023-08-26 23:40:05,042 INFO L124 PetriNetUnfolderBase]: 47/620 cut-off events. [2023-08-26 23:40:05,042 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-08-26 23:40:05,053 INFO L83 FinitePrefix]: Finished finitePrefix Result has 633 conditions, 620 events. 47/620 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1067 event pairs, 0 based on Foata normal form. 0/530 useless extension candidates. Maximal degree in co-relation 523. Up to 2 conditions per place. [2023-08-26 23:40:05,053 INFO L82 GeneralOperation]: Start removeDead. Operand has 586 places, 623 transitions, 1270 flow [2023-08-26 23:40:05,062 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 572 places, 609 transitions, 1236 flow [2023-08-26 23:40:05,065 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-26 23:40:05,077 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 572 places, 609 transitions, 1236 flow [2023-08-26 23:40:05,079 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 572 places, 609 transitions, 1236 flow [2023-08-26 23:40:05,080 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 572 places, 609 transitions, 1236 flow [2023-08-26 23:40:05,161 INFO L124 PetriNetUnfolderBase]: 47/609 cut-off events. [2023-08-26 23:40:05,162 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-08-26 23:40:05,166 INFO L83 FinitePrefix]: Finished finitePrefix Result has 622 conditions, 609 events. 47/609 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1066 event pairs, 0 based on Foata normal form. 0/520 useless extension candidates. Maximal degree in co-relation 523. Up to 2 conditions per place. [2023-08-26 23:40:05,178 INFO L119 LiptonReduction]: Number of co-enabled transitions 34440 [2023-08-26 23:40:28,764 INFO L134 LiptonReduction]: Checked pairs total: 46663 [2023-08-26 23:40:28,764 INFO L136 LiptonReduction]: Total number of compositions: 793 [2023-08-26 23:40:28,780 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-26 23:40:28,785 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;@1dea429a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-26 23:40:28,786 INFO L358 AbstractCegarLoop]: Starting to check reachability of 64 error locations. [2023-08-26 23:40:28,788 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-26 23:40:28,788 INFO L124 PetriNetUnfolderBase]: 1/2 cut-off events. [2023-08-26 23:40:28,788 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 23:40:28,788 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 23:40:28,788 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-26 23:40:28,789 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-08-26 23:40:28,791 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 23:40:28,792 INFO L85 PathProgramCache]: Analyzing trace with hash 2484, now seen corresponding path program 1 times [2023-08-26 23:40:28,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 23:40:28,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329819469] [2023-08-26 23:40:28,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 23:40:28,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 23:40:28,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 23:40:28,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 23:40:28,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 23:40:28,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [329819469] [2023-08-26 23:40:28,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [329819469] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 23:40:28,859 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 23:40:28,859 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-26 23:40:28,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698594881] [2023-08-26 23:40:28,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 23:40:28,864 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-26 23:40:28,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 23:40:28,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-26 23:40:28,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-26 23:40:28,887 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 587 out of 1416 [2023-08-26 23:40:28,892 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 83 transitions, 184 flow. Second operand has 2 states, 2 states have (on average 587.5) internal successors, (1175), 2 states have internal predecessors, (1175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:40:28,892 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 23:40:28,892 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 587 of 1416 [2023-08-26 23:40:28,893 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 23:40:29,560 INFO L124 PetriNetUnfolderBase]: 4319/6210 cut-off events. [2023-08-26 23:40:29,561 INFO L125 PetriNetUnfolderBase]: For 325/325 co-relation queries the response was YES. [2023-08-26 23:40:29,565 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12764 conditions, 6210 events. 4319/6210 cut-off events. For 325/325 co-relation queries the response was YES. Maximal size of possible extension queue 285. Compared 30001 event pairs, 3825 based on Foata normal form. 0/3342 useless extension candidates. Maximal degree in co-relation 11792. Up to 6211 conditions per place. [2023-08-26 23:40:29,584 INFO L140 encePairwiseOnDemand]: 1408/1416 looper letters, 75 selfloop transitions, 0 changer transitions 0/75 dead transitions. [2023-08-26 23:40:29,585 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 75 transitions, 318 flow [2023-08-26 23:40:29,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-26 23:40:29,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-26 23:40:29,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 1257 transitions. [2023-08-26 23:40:29,599 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4438559322033898 [2023-08-26 23:40:29,600 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 1257 transitions. [2023-08-26 23:40:29,600 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 1257 transitions. [2023-08-26 23:40:29,602 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 23:40:29,604 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 1257 transitions. [2023-08-26 23:40:29,609 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 628.5) internal successors, (1257), 2 states have internal predecessors, (1257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:40:29,615 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 1416.0) internal successors, (4248), 3 states have internal predecessors, (4248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:40:29,616 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 1416.0) internal successors, (4248), 3 states have internal predecessors, (4248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:40:29,617 INFO L175 Difference]: Start difference. First operand has 84 places, 83 transitions, 184 flow. Second operand 2 states and 1257 transitions. [2023-08-26 23:40:29,618 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 75 transitions, 318 flow [2023-08-26 23:40:29,622 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 75 transitions, 306 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-08-26 23:40:29,623 INFO L231 Difference]: Finished difference. Result has 71 places, 75 transitions, 156 flow [2023-08-26 23:40:29,624 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1416, PETRI_DIFFERENCE_MINUEND_FLOW=156, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=156, PETRI_PLACES=71, PETRI_TRANSITIONS=75} [2023-08-26 23:40:29,626 INFO L281 CegarLoopForPetriNet]: 84 programPoint places, -13 predicate places. [2023-08-26 23:40:29,627 INFO L495 AbstractCegarLoop]: Abstraction has has 71 places, 75 transitions, 156 flow [2023-08-26 23:40:29,627 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 587.5) internal successors, (1175), 2 states have internal predecessors, (1175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:40:29,627 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 23:40:29,627 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2023-08-26 23:40:29,628 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-26 23:40:29,628 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-08-26 23:40:29,628 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 23:40:29,628 INFO L85 PathProgramCache]: Analyzing trace with hash 79239, now seen corresponding path program 1 times [2023-08-26 23:40:29,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 23:40:29,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708200001] [2023-08-26 23:40:29,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 23:40:29,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 23:40:29,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 23:40:29,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 23:40:29,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 23:40:29,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [708200001] [2023-08-26 23:40:29,784 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [708200001] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 23:40:29,785 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 23:40:29,785 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-26 23:40:29,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952427384] [2023-08-26 23:40:29,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 23:40:29,785 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 23:40:29,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 23:40:29,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 23:40:29,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 23:40:29,787 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 567 out of 1416 [2023-08-26 23:40:29,789 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 75 transitions, 156 flow. Second operand has 3 states, 3 states have (on average 567.6666666666666) internal successors, (1703), 3 states have internal predecessors, (1703), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:40:29,789 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 23:40:29,789 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 567 of 1416 [2023-08-26 23:40:29,789 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 23:40:30,348 INFO L124 PetriNetUnfolderBase]: 4319/6208 cut-off events. [2023-08-26 23:40:30,348 INFO L125 PetriNetUnfolderBase]: For 63/63 co-relation queries the response was YES. [2023-08-26 23:40:30,351 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12552 conditions, 6208 events. 4319/6208 cut-off events. For 63/63 co-relation queries the response was YES. Maximal size of possible extension queue 285. Compared 30014 event pairs, 3825 based on Foata normal form. 0/3342 useless extension candidates. Maximal degree in co-relation 12549. Up to 6208 conditions per place. [2023-08-26 23:40:30,368 INFO L140 encePairwiseOnDemand]: 1413/1416 looper letters, 72 selfloop transitions, 1 changer transitions 0/73 dead transitions. [2023-08-26 23:40:30,368 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 73 transitions, 298 flow [2023-08-26 23:40:30,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 23:40:30,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 23:40:30,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1776 transitions. [2023-08-26 23:40:30,372 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4180790960451977 [2023-08-26 23:40:30,372 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1776 transitions. [2023-08-26 23:40:30,372 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1776 transitions. [2023-08-26 23:40:30,372 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 23:40:30,372 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1776 transitions. [2023-08-26 23:40:30,375 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 592.0) internal successors, (1776), 3 states have internal predecessors, (1776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:40:30,380 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1416.0) internal successors, (5664), 4 states have internal predecessors, (5664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:40:30,382 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1416.0) internal successors, (5664), 4 states have internal predecessors, (5664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:40:30,382 INFO L175 Difference]: Start difference. First operand has 71 places, 75 transitions, 156 flow. Second operand 3 states and 1776 transitions. [2023-08-26 23:40:30,382 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 73 transitions, 298 flow [2023-08-26 23:40:30,383 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 73 transitions, 298 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-26 23:40:30,384 INFO L231 Difference]: Finished difference. Result has 71 places, 73 transitions, 154 flow [2023-08-26 23:40:30,384 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1416, PETRI_DIFFERENCE_MINUEND_FLOW=152, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=154, PETRI_PLACES=71, PETRI_TRANSITIONS=73} [2023-08-26 23:40:30,384 INFO L281 CegarLoopForPetriNet]: 84 programPoint places, -13 predicate places. [2023-08-26 23:40:30,384 INFO L495 AbstractCegarLoop]: Abstraction has has 71 places, 73 transitions, 154 flow [2023-08-26 23:40:30,385 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 567.6666666666666) internal successors, (1703), 3 states have internal predecessors, (1703), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:40:30,385 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 23:40:30,385 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2023-08-26 23:40:30,385 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-26 23:40:30,386 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-08-26 23:40:30,386 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 23:40:30,386 INFO L85 PathProgramCache]: Analyzing trace with hash 79240, now seen corresponding path program 1 times [2023-08-26 23:40:30,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 23:40:30,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756313245] [2023-08-26 23:40:30,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 23:40:30,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 23:40:30,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 23:40:30,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 23:40:30,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 23:40:30,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1756313245] [2023-08-26 23:40:30,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1756313245] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 23:40:30,457 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 23:40:30,457 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-26 23:40:30,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479500043] [2023-08-26 23:40:30,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 23:40:30,457 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 23:40:30,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 23:40:30,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 23:40:30,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 23:40:30,459 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 567 out of 1416 [2023-08-26 23:40:30,461 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 73 transitions, 154 flow. Second operand has 3 states, 3 states have (on average 567.6666666666666) internal successors, (1703), 3 states have internal predecessors, (1703), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:40:30,461 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 23:40:30,461 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 567 of 1416 [2023-08-26 23:40:30,461 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 23:40:31,016 INFO L124 PetriNetUnfolderBase]: 4319/6206 cut-off events. [2023-08-26 23:40:31,016 INFO L125 PetriNetUnfolderBase]: For 63/63 co-relation queries the response was YES. [2023-08-26 23:40:31,020 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12550 conditions, 6206 events. 4319/6206 cut-off events. For 63/63 co-relation queries the response was YES. Maximal size of possible extension queue 285. Compared 30018 event pairs, 3825 based on Foata normal form. 0/3342 useless extension candidates. Maximal degree in co-relation 12546. Up to 6206 conditions per place. [2023-08-26 23:40:31,038 INFO L140 encePairwiseOnDemand]: 1413/1416 looper letters, 70 selfloop transitions, 1 changer transitions 0/71 dead transitions. [2023-08-26 23:40:31,038 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 71 transitions, 292 flow [2023-08-26 23:40:31,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 23:40:31,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 23:40:31,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1774 transitions. [2023-08-26 23:40:31,042 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.417608286252354 [2023-08-26 23:40:31,042 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1774 transitions. [2023-08-26 23:40:31,042 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1774 transitions. [2023-08-26 23:40:31,042 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 23:40:31,042 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1774 transitions. [2023-08-26 23:40:31,045 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 591.3333333333334) internal successors, (1774), 3 states have internal predecessors, (1774), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:40:31,050 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1416.0) internal successors, (5664), 4 states have internal predecessors, (5664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:40:31,052 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1416.0) internal successors, (5664), 4 states have internal predecessors, (5664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:40:31,052 INFO L175 Difference]: Start difference. First operand has 71 places, 73 transitions, 154 flow. Second operand 3 states and 1774 transitions. [2023-08-26 23:40:31,052 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 71 transitions, 292 flow [2023-08-26 23:40:31,052 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 71 transitions, 291 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-26 23:40:31,053 INFO L231 Difference]: Finished difference. Result has 70 places, 71 transitions, 151 flow [2023-08-26 23:40:31,053 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1416, PETRI_DIFFERENCE_MINUEND_FLOW=149, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=151, PETRI_PLACES=70, PETRI_TRANSITIONS=71} [2023-08-26 23:40:31,054 INFO L281 CegarLoopForPetriNet]: 84 programPoint places, -14 predicate places. [2023-08-26 23:40:31,055 INFO L495 AbstractCegarLoop]: Abstraction has has 70 places, 71 transitions, 151 flow [2023-08-26 23:40:31,055 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 567.6666666666666) internal successors, (1703), 3 states have internal predecessors, (1703), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:40:31,055 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 23:40:31,055 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2023-08-26 23:40:31,056 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-26 23:40:31,058 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-08-26 23:40:31,059 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 23:40:31,059 INFO L85 PathProgramCache]: Analyzing trace with hash 79276, now seen corresponding path program 1 times [2023-08-26 23:40:31,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 23:40:31,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420231827] [2023-08-26 23:40:31,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 23:40:31,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 23:40:31,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 23:40:31,108 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 23:40:31,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 23:40:31,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [420231827] [2023-08-26 23:40:31,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [420231827] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 23:40:31,108 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 23:40:31,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-26 23:40:31,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337787937] [2023-08-26 23:40:31,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 23:40:31,109 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 23:40:31,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 23:40:31,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 23:40:31,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 23:40:31,110 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 563 out of 1416 [2023-08-26 23:40:31,112 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 71 transitions, 151 flow. Second operand has 3 states, 3 states have (on average 563.6666666666666) internal successors, (1691), 3 states have internal predecessors, (1691), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:40:31,112 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 23:40:31,112 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 563 of 1416 [2023-08-26 23:40:31,112 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 23:40:31,655 INFO L124 PetriNetUnfolderBase]: 4319/6203 cut-off events. [2023-08-26 23:40:31,655 INFO L125 PetriNetUnfolderBase]: For 63/63 co-relation queries the response was YES. [2023-08-26 23:40:31,660 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12545 conditions, 6203 events. 4319/6203 cut-off events. For 63/63 co-relation queries the response was YES. Maximal size of possible extension queue 285. Compared 30001 event pairs, 3825 based on Foata normal form. 0/3342 useless extension candidates. Maximal degree in co-relation 12541. Up to 6195 conditions per place. [2023-08-26 23:40:31,671 INFO L140 encePairwiseOnDemand]: 1407/1416 looper letters, 62 selfloop transitions, 6 changer transitions 0/68 dead transitions. [2023-08-26 23:40:31,671 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 68 transitions, 281 flow [2023-08-26 23:40:31,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 23:40:31,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 23:40:31,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1760 transitions. [2023-08-26 23:40:31,674 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4143126177024482 [2023-08-26 23:40:31,674 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1760 transitions. [2023-08-26 23:40:31,674 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1760 transitions. [2023-08-26 23:40:31,675 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 23:40:31,675 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1760 transitions. [2023-08-26 23:40:31,678 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 586.6666666666666) internal successors, (1760), 3 states have internal predecessors, (1760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:40:31,682 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1416.0) internal successors, (5664), 4 states have internal predecessors, (5664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:40:31,684 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1416.0) internal successors, (5664), 4 states have internal predecessors, (5664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:40:31,684 INFO L175 Difference]: Start difference. First operand has 70 places, 71 transitions, 151 flow. Second operand 3 states and 1760 transitions. [2023-08-26 23:40:31,684 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 68 transitions, 281 flow [2023-08-26 23:40:31,685 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 68 transitions, 280 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-26 23:40:31,686 INFO L231 Difference]: Finished difference. Result has 68 places, 68 transitions, 156 flow [2023-08-26 23:40:31,686 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1416, PETRI_DIFFERENCE_MINUEND_FLOW=144, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=156, PETRI_PLACES=68, PETRI_TRANSITIONS=68} [2023-08-26 23:40:31,686 INFO L281 CegarLoopForPetriNet]: 84 programPoint places, -16 predicate places. [2023-08-26 23:40:31,686 INFO L495 AbstractCegarLoop]: Abstraction has has 68 places, 68 transitions, 156 flow [2023-08-26 23:40:31,687 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 563.6666666666666) internal successors, (1691), 3 states have internal predecessors, (1691), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:40:31,687 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 23:40:31,687 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2023-08-26 23:40:31,687 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-26 23:40:31,687 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-08-26 23:40:31,688 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 23:40:31,688 INFO L85 PathProgramCache]: Analyzing trace with hash 79277, now seen corresponding path program 1 times [2023-08-26 23:40:31,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 23:40:31,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438368360] [2023-08-26 23:40:31,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 23:40:31,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 23:40:31,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 23:40:31,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 23:40:31,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 23:40:31,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1438368360] [2023-08-26 23:40:31,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1438368360] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 23:40:31,720 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 23:40:31,720 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-26 23:40:31,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286457364] [2023-08-26 23:40:31,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 23:40:31,720 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 23:40:31,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 23:40:31,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 23:40:31,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 23:40:31,722 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 563 out of 1416 [2023-08-26 23:40:31,723 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 68 transitions, 156 flow. Second operand has 3 states, 3 states have (on average 563.6666666666666) internal successors, (1691), 3 states have internal predecessors, (1691), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:40:31,723 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 23:40:31,723 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 563 of 1416 [2023-08-26 23:40:31,724 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 23:40:32,300 INFO L124 PetriNetUnfolderBase]: 4326/6213 cut-off events. [2023-08-26 23:40:32,300 INFO L125 PetriNetUnfolderBase]: For 63/63 co-relation queries the response was YES. [2023-08-26 23:40:32,304 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12576 conditions, 6213 events. 4326/6213 cut-off events. For 63/63 co-relation queries the response was YES. Maximal size of possible extension queue 285. Compared 29995 event pairs, 3825 based on Foata normal form. 0/3349 useless extension candidates. Maximal degree in co-relation 12572. Up to 6209 conditions per place. [2023-08-26 23:40:32,316 INFO L140 encePairwiseOnDemand]: 1402/1416 looper letters, 67 selfloop transitions, 11 changer transitions 0/78 dead transitions. [2023-08-26 23:40:32,316 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 78 transitions, 342 flow [2023-08-26 23:40:32,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 23:40:32,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 23:40:32,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1770 transitions. [2023-08-26 23:40:32,322 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4166666666666667 [2023-08-26 23:40:32,322 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1770 transitions. [2023-08-26 23:40:32,322 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1770 transitions. [2023-08-26 23:40:32,323 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 23:40:32,323 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1770 transitions. [2023-08-26 23:40:32,325 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 590.0) internal successors, (1770), 3 states have internal predecessors, (1770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:40:32,329 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1416.0) internal successors, (5664), 4 states have internal predecessors, (5664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:40:32,330 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1416.0) internal successors, (5664), 4 states have internal predecessors, (5664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:40:32,330 INFO L175 Difference]: Start difference. First operand has 68 places, 68 transitions, 156 flow. Second operand 3 states and 1770 transitions. [2023-08-26 23:40:32,330 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 78 transitions, 342 flow [2023-08-26 23:40:32,331 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 78 transitions, 320 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-26 23:40:32,332 INFO L231 Difference]: Finished difference. Result has 70 places, 78 transitions, 234 flow [2023-08-26 23:40:32,332 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1416, PETRI_DIFFERENCE_MINUEND_FLOW=144, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=234, PETRI_PLACES=70, PETRI_TRANSITIONS=78} [2023-08-26 23:40:32,332 INFO L281 CegarLoopForPetriNet]: 84 programPoint places, -14 predicate places. [2023-08-26 23:40:32,332 INFO L495 AbstractCegarLoop]: Abstraction has has 70 places, 78 transitions, 234 flow [2023-08-26 23:40:32,333 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 563.6666666666666) internal successors, (1691), 3 states have internal predecessors, (1691), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:40:32,333 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 23:40:32,333 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-26 23:40:32,333 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-26 23:40:32,333 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-08-26 23:40:32,333 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 23:40:32,333 INFO L85 PathProgramCache]: Analyzing trace with hash 2461162, now seen corresponding path program 1 times [2023-08-26 23:40:32,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 23:40:32,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523480301] [2023-08-26 23:40:32,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 23:40:32,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 23:40:32,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 23:40:32,404 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 23:40:32,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 23:40:32,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523480301] [2023-08-26 23:40:32,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [523480301] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-26 23:40:32,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [629577789] [2023-08-26 23:40:32,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 23:40:32,405 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 23:40:32,405 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 23:40:32,407 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-26 23:40:32,412 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-08-26 23:40:32,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 23:40:32,520 INFO L262 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 4 conjunts are in the unsatisfiable core [2023-08-26 23:40:32,522 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-26 23:40:32,546 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 23:40:32,547 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-26 23:40:32,561 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 23:40:32,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [629577789] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-26 23:40:32,564 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-26 23:40:32,564 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 5 [2023-08-26 23:40:32,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77626172] [2023-08-26 23:40:32,564 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-26 23:40:32,565 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-26 23:40:32,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 23:40:32,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-26 23:40:32,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-08-26 23:40:32,568 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 563 out of 1416 [2023-08-26 23:40:32,571 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 78 transitions, 234 flow. Second operand has 7 states, 7 states have (on average 564.1428571428571) internal successors, (3949), 7 states have internal predecessors, (3949), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:40:32,571 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 23:40:32,571 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 563 of 1416 [2023-08-26 23:40:32,571 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 23:40:33,237 INFO L124 PetriNetUnfolderBase]: 4347/6243 cut-off events. [2023-08-26 23:40:33,237 INFO L125 PetriNetUnfolderBase]: For 63/63 co-relation queries the response was YES. [2023-08-26 23:40:33,241 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12697 conditions, 6243 events. 4347/6243 cut-off events. For 63/63 co-relation queries the response was YES. Maximal size of possible extension queue 285. Compared 30065 event pairs, 3825 based on Foata normal form. 0/3364 useless extension candidates. Maximal degree in co-relation 12692. Up to 6224 conditions per place. [2023-08-26 23:40:33,253 INFO L140 encePairwiseOnDemand]: 1402/1416 looper letters, 67 selfloop transitions, 41 changer transitions 0/108 dead transitions. [2023-08-26 23:40:33,254 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 108 transitions, 582 flow [2023-08-26 23:40:33,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-26 23:40:33,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-26 23:40:33,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3495 transitions. [2023-08-26 23:40:33,260 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4113700564971751 [2023-08-26 23:40:33,260 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 3495 transitions. [2023-08-26 23:40:33,260 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 3495 transitions. [2023-08-26 23:40:33,261 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 23:40:33,261 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 3495 transitions. [2023-08-26 23:40:33,266 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 582.5) internal successors, (3495), 6 states have internal predecessors, (3495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:40:33,272 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1416.0) internal successors, (9912), 7 states have internal predecessors, (9912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:40:33,273 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1416.0) internal successors, (9912), 7 states have internal predecessors, (9912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:40:33,273 INFO L175 Difference]: Start difference. First operand has 70 places, 78 transitions, 234 flow. Second operand 6 states and 3495 transitions. [2023-08-26 23:40:33,273 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 108 transitions, 582 flow [2023-08-26 23:40:33,274 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 108 transitions, 548 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-26 23:40:33,275 INFO L231 Difference]: Finished difference. Result has 76 places, 108 transitions, 487 flow [2023-08-26 23:40:33,276 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1416, PETRI_DIFFERENCE_MINUEND_FLOW=212, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=487, PETRI_PLACES=76, PETRI_TRANSITIONS=108} [2023-08-26 23:40:33,276 INFO L281 CegarLoopForPetriNet]: 84 programPoint places, -8 predicate places. [2023-08-26 23:40:33,276 INFO L495 AbstractCegarLoop]: Abstraction has has 76 places, 108 transitions, 487 flow [2023-08-26 23:40:33,277 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 564.1428571428571) internal successors, (3949), 7 states have internal predecessors, (3949), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:40:33,277 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 23:40:33,277 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-26 23:40:33,283 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-08-26 23:40:33,482 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-08-26 23:40:33,482 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-08-26 23:40:33,482 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 23:40:33,483 INFO L85 PathProgramCache]: Analyzing trace with hash 76447894, now seen corresponding path program 1 times [2023-08-26 23:40:33,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 23:40:33,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [861949383] [2023-08-26 23:40:33,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 23:40:33,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 23:40:33,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 23:40:33,524 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-26 23:40:33,524 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 23:40:33,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [861949383] [2023-08-26 23:40:33,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [861949383] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 23:40:33,525 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 23:40:33,525 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-26 23:40:33,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859793259] [2023-08-26 23:40:33,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 23:40:33,525 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 23:40:33,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 23:40:33,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 23:40:33,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 23:40:33,527 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 567 out of 1416 [2023-08-26 23:40:33,528 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 108 transitions, 487 flow. Second operand has 3 states, 3 states have (on average 568.3333333333334) internal successors, (1705), 3 states have internal predecessors, (1705), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:40:33,528 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 23:40:33,528 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 567 of 1416 [2023-08-26 23:40:33,528 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 23:40:34,171 INFO L124 PetriNetUnfolderBase]: 4343/6237 cut-off events. [2023-08-26 23:40:34,171 INFO L125 PetriNetUnfolderBase]: For 68/68 co-relation queries the response was YES. [2023-08-26 23:40:34,176 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12746 conditions, 6237 events. 4343/6237 cut-off events. For 68/68 co-relation queries the response was YES. Maximal size of possible extension queue 286. Compared 30042 event pairs, 3825 based on Foata normal form. 0/3367 useless extension candidates. Maximal degree in co-relation 12738. Up to 6237 conditions per place. [2023-08-26 23:40:34,185 INFO L140 encePairwiseOnDemand]: 1413/1416 looper letters, 101 selfloop transitions, 1 changer transitions 0/102 dead transitions. [2023-08-26 23:40:34,186 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 102 transitions, 656 flow [2023-08-26 23:40:34,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 23:40:34,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 23:40:34,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1769 transitions. [2023-08-26 23:40:34,189 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4164312617702448 [2023-08-26 23:40:34,189 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1769 transitions. [2023-08-26 23:40:34,189 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1769 transitions. [2023-08-26 23:40:34,190 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 23:40:34,190 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1769 transitions. [2023-08-26 23:40:34,192 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 589.6666666666666) internal successors, (1769), 3 states have internal predecessors, (1769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:40:34,196 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1416.0) internal successors, (5664), 4 states have internal predecessors, (5664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:40:34,196 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1416.0) internal successors, (5664), 4 states have internal predecessors, (5664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:40:34,196 INFO L175 Difference]: Start difference. First operand has 76 places, 108 transitions, 487 flow. Second operand 3 states and 1769 transitions. [2023-08-26 23:40:34,196 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 102 transitions, 656 flow [2023-08-26 23:40:34,198 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 102 transitions, 598 flow, removed 21 selfloop flow, removed 1 redundant places. [2023-08-26 23:40:34,199 INFO L231 Difference]: Finished difference. Result has 75 places, 102 transitions, 396 flow [2023-08-26 23:40:34,199 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1416, PETRI_DIFFERENCE_MINUEND_FLOW=394, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=396, PETRI_PLACES=75, PETRI_TRANSITIONS=102} [2023-08-26 23:40:34,199 INFO L281 CegarLoopForPetriNet]: 84 programPoint places, -9 predicate places. [2023-08-26 23:40:34,199 INFO L495 AbstractCegarLoop]: Abstraction has has 75 places, 102 transitions, 396 flow [2023-08-26 23:40:34,200 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 568.3333333333334) internal successors, (1705), 3 states have internal predecessors, (1705), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:40:34,200 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 23:40:34,200 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-26 23:40:34,200 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-26 23:40:34,200 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-08-26 23:40:34,200 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 23:40:34,200 INFO L85 PathProgramCache]: Analyzing trace with hash 76447895, now seen corresponding path program 1 times [2023-08-26 23:40:34,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 23:40:34,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428199469] [2023-08-26 23:40:34,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 23:40:34,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 23:40:34,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 23:40:34,227 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-26 23:40:34,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 23:40:34,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1428199469] [2023-08-26 23:40:34,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1428199469] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 23:40:34,228 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 23:40:34,228 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-26 23:40:34,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168247583] [2023-08-26 23:40:34,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 23:40:34,228 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 23:40:34,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 23:40:34,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 23:40:34,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 23:40:34,229 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 567 out of 1416 [2023-08-26 23:40:34,230 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 102 transitions, 396 flow. Second operand has 3 states, 3 states have (on average 568.3333333333334) internal successors, (1705), 3 states have internal predecessors, (1705), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:40:34,230 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 23:40:34,230 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 567 of 1416 [2023-08-26 23:40:34,230 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 23:40:34,779 INFO L124 PetriNetUnfolderBase]: 4339/6231 cut-off events. [2023-08-26 23:40:34,779 INFO L125 PetriNetUnfolderBase]: For 72/72 co-relation queries the response was YES. [2023-08-26 23:40:34,785 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12696 conditions, 6231 events. 4339/6231 cut-off events. For 72/72 co-relation queries the response was YES. Maximal size of possible extension queue 286. Compared 30029 event pairs, 3825 based on Foata normal form. 2/3370 useless extension candidates. Maximal degree in co-relation 12687. Up to 6231 conditions per place. [2023-08-26 23:40:34,795 INFO L140 encePairwiseOnDemand]: 1413/1416 looper letters, 95 selfloop transitions, 1 changer transitions 0/96 dead transitions. [2023-08-26 23:40:34,795 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 96 transitions, 560 flow [2023-08-26 23:40:34,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 23:40:34,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 23:40:34,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1767 transitions. [2023-08-26 23:40:34,799 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4159604519774011 [2023-08-26 23:40:34,799 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1767 transitions. [2023-08-26 23:40:34,799 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1767 transitions. [2023-08-26 23:40:34,800 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 23:40:34,800 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1767 transitions. [2023-08-26 23:40:34,802 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 589.0) internal successors, (1767), 3 states have internal predecessors, (1767), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:40:34,805 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1416.0) internal successors, (5664), 4 states have internal predecessors, (5664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:40:34,806 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1416.0) internal successors, (5664), 4 states have internal predecessors, (5664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:40:34,806 INFO L175 Difference]: Start difference. First operand has 75 places, 102 transitions, 396 flow. Second operand 3 states and 1767 transitions. [2023-08-26 23:40:34,806 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 96 transitions, 560 flow [2023-08-26 23:40:34,807 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 96 transitions, 559 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-26 23:40:34,808 INFO L231 Difference]: Finished difference. Result has 74 places, 96 transitions, 369 flow [2023-08-26 23:40:34,808 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1416, PETRI_DIFFERENCE_MINUEND_FLOW=367, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=369, PETRI_PLACES=74, PETRI_TRANSITIONS=96} [2023-08-26 23:40:34,808 INFO L281 CegarLoopForPetriNet]: 84 programPoint places, -10 predicate places. [2023-08-26 23:40:34,808 INFO L495 AbstractCegarLoop]: Abstraction has has 74 places, 96 transitions, 369 flow [2023-08-26 23:40:34,809 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 568.3333333333334) internal successors, (1705), 3 states have internal predecessors, (1705), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:40:34,809 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 23:40:34,809 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-26 23:40:34,809 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-26 23:40:34,809 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-08-26 23:40:34,809 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 23:40:34,809 INFO L85 PathProgramCache]: Analyzing trace with hash 76451304, now seen corresponding path program 1 times [2023-08-26 23:40:34,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 23:40:34,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177022247] [2023-08-26 23:40:34,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 23:40:34,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 23:40:34,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 23:40:34,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 23:40:34,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 23:40:34,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1177022247] [2023-08-26 23:40:34,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1177022247] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 23:40:34,837 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 23:40:34,837 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-26 23:40:34,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064573820] [2023-08-26 23:40:34,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 23:40:34,839 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 23:40:34,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 23:40:34,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 23:40:34,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 23:40:34,840 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 567 out of 1416 [2023-08-26 23:40:34,841 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 96 transitions, 369 flow. Second operand has 3 states, 3 states have (on average 568.3333333333334) internal successors, (1705), 3 states have internal predecessors, (1705), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:40:34,841 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 23:40:34,841 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 567 of 1416 [2023-08-26 23:40:34,841 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 23:40:35,398 INFO L124 PetriNetUnfolderBase]: 4335/6226 cut-off events. [2023-08-26 23:40:35,398 INFO L125 PetriNetUnfolderBase]: For 72/72 co-relation queries the response was YES. [2023-08-26 23:40:35,404 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12677 conditions, 6226 events. 4335/6226 cut-off events. For 72/72 co-relation queries the response was YES. Maximal size of possible extension queue 286. Compared 30040 event pairs, 3825 based on Foata normal form. 0/3368 useless extension candidates. Maximal degree in co-relation 12668. Up to 6226 conditions per place. [2023-08-26 23:40:35,415 INFO L140 encePairwiseOnDemand]: 1414/1416 looper letters, 90 selfloop transitions, 1 changer transitions 0/91 dead transitions. [2023-08-26 23:40:35,415 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 91 transitions, 525 flow [2023-08-26 23:40:35,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 23:40:35,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 23:40:35,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1765 transitions. [2023-08-26 23:40:35,419 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4154896421845574 [2023-08-26 23:40:35,419 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1765 transitions. [2023-08-26 23:40:35,419 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1765 transitions. [2023-08-26 23:40:35,420 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 23:40:35,420 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1765 transitions. [2023-08-26 23:40:35,422 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 588.3333333333334) internal successors, (1765), 3 states have internal predecessors, (1765), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:40:35,426 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1416.0) internal successors, (5664), 4 states have internal predecessors, (5664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:40:35,426 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1416.0) internal successors, (5664), 4 states have internal predecessors, (5664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:40:35,426 INFO L175 Difference]: Start difference. First operand has 74 places, 96 transitions, 369 flow. Second operand 3 states and 1765 transitions. [2023-08-26 23:40:35,426 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 91 transitions, 525 flow [2023-08-26 23:40:35,427 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 91 transitions, 524 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-26 23:40:35,428 INFO L231 Difference]: Finished difference. Result has 74 places, 91 transitions, 344 flow [2023-08-26 23:40:35,428 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1416, PETRI_DIFFERENCE_MINUEND_FLOW=342, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=344, PETRI_PLACES=74, PETRI_TRANSITIONS=91} [2023-08-26 23:40:35,429 INFO L281 CegarLoopForPetriNet]: 84 programPoint places, -10 predicate places. [2023-08-26 23:40:35,431 INFO L495 AbstractCegarLoop]: Abstraction has has 74 places, 91 transitions, 344 flow [2023-08-26 23:40:35,431 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 568.3333333333334) internal successors, (1705), 3 states have internal predecessors, (1705), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:40:35,431 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 23:40:35,431 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-26 23:40:35,431 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-26 23:40:35,431 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-08-26 23:40:35,432 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 23:40:35,432 INFO L85 PathProgramCache]: Analyzing trace with hash 76451305, now seen corresponding path program 1 times [2023-08-26 23:40:35,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 23:40:35,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498148208] [2023-08-26 23:40:35,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 23:40:35,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 23:40:35,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 23:40:35,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 23:40:35,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 23:40:35,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498148208] [2023-08-26 23:40:35,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [498148208] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 23:40:35,478 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 23:40:35,478 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-26 23:40:35,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897684775] [2023-08-26 23:40:35,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 23:40:35,478 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 23:40:35,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 23:40:35,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 23:40:35,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 23:40:35,480 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 567 out of 1416 [2023-08-26 23:40:35,481 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 91 transitions, 344 flow. Second operand has 3 states, 3 states have (on average 568.3333333333334) internal successors, (1705), 3 states have internal predecessors, (1705), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:40:35,481 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 23:40:35,481 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 567 of 1416 [2023-08-26 23:40:35,481 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 23:40:36,122 INFO L124 PetriNetUnfolderBase]: 4331/6221 cut-off events. [2023-08-26 23:40:36,123 INFO L125 PetriNetUnfolderBase]: For 72/72 co-relation queries the response was YES. [2023-08-26 23:40:36,128 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12658 conditions, 6221 events. 4331/6221 cut-off events. For 72/72 co-relation queries the response was YES. Maximal size of possible extension queue 286. Compared 30014 event pairs, 3825 based on Foata normal form. 0/3368 useless extension candidates. Maximal degree in co-relation 12649. Up to 6221 conditions per place. [2023-08-26 23:40:36,137 INFO L140 encePairwiseOnDemand]: 1414/1416 looper letters, 85 selfloop transitions, 1 changer transitions 0/86 dead transitions. [2023-08-26 23:40:36,137 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 86 transitions, 490 flow [2023-08-26 23:40:36,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 23:40:36,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 23:40:36,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1764 transitions. [2023-08-26 23:40:36,141 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4152542372881356 [2023-08-26 23:40:36,141 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1764 transitions. [2023-08-26 23:40:36,141 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1764 transitions. [2023-08-26 23:40:36,141 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 23:40:36,141 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1764 transitions. [2023-08-26 23:40:36,143 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 588.0) internal successors, (1764), 3 states have internal predecessors, (1764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:40:36,147 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1416.0) internal successors, (5664), 4 states have internal predecessors, (5664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:40:36,147 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1416.0) internal successors, (5664), 4 states have internal predecessors, (5664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:40:36,147 INFO L175 Difference]: Start difference. First operand has 74 places, 91 transitions, 344 flow. Second operand 3 states and 1764 transitions. [2023-08-26 23:40:36,147 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 86 transitions, 490 flow [2023-08-26 23:40:36,148 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 86 transitions, 489 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-26 23:40:36,149 INFO L231 Difference]: Finished difference. Result has 74 places, 86 transitions, 319 flow [2023-08-26 23:40:36,149 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1416, PETRI_DIFFERENCE_MINUEND_FLOW=317, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=319, PETRI_PLACES=74, PETRI_TRANSITIONS=86} [2023-08-26 23:40:36,150 INFO L281 CegarLoopForPetriNet]: 84 programPoint places, -10 predicate places. [2023-08-26 23:40:36,151 INFO L495 AbstractCegarLoop]: Abstraction has has 74 places, 86 transitions, 319 flow [2023-08-26 23:40:36,151 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 568.3333333333334) internal successors, (1705), 3 states have internal predecessors, (1705), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:40:36,151 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 23:40:36,151 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-26 23:40:36,151 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-26 23:40:36,151 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-08-26 23:40:36,151 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 23:40:36,151 INFO L85 PathProgramCache]: Analyzing trace with hash -1924969485, now seen corresponding path program 1 times [2023-08-26 23:40:36,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 23:40:36,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658711748] [2023-08-26 23:40:36,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 23:40:36,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 23:40:36,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 23:40:36,185 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 23:40:36,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 23:40:36,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1658711748] [2023-08-26 23:40:36,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1658711748] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 23:40:36,186 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 23:40:36,186 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 23:40:36,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599351508] [2023-08-26 23:40:36,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 23:40:36,186 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 23:40:36,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 23:40:36,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 23:40:36,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 23:40:36,187 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 563 out of 1416 [2023-08-26 23:40:36,188 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 86 transitions, 319 flow. Second operand has 3 states, 3 states have (on average 564.6666666666666) internal successors, (1694), 3 states have internal predecessors, (1694), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:40:36,188 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 23:40:36,188 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 563 of 1416 [2023-08-26 23:40:36,188 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 23:40:36,766 INFO L124 PetriNetUnfolderBase]: 4334/6227 cut-off events. [2023-08-26 23:40:36,766 INFO L125 PetriNetUnfolderBase]: For 72/72 co-relation queries the response was YES. [2023-08-26 23:40:36,772 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12671 conditions, 6227 events. 4334/6227 cut-off events. For 72/72 co-relation queries the response was YES. Maximal size of possible extension queue 286. Compared 30063 event pairs, 3825 based on Foata normal form. 0/3371 useless extension candidates. Maximal degree in co-relation 12662. Up to 6219 conditions per place. [2023-08-26 23:40:36,782 INFO L140 encePairwiseOnDemand]: 1403/1416 looper letters, 81 selfloop transitions, 11 changer transitions 0/92 dead transitions. [2023-08-26 23:40:36,782 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 92 transitions, 515 flow [2023-08-26 23:40:36,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 23:40:36,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 23:40:36,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1763 transitions. [2023-08-26 23:40:36,785 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4150188323917137 [2023-08-26 23:40:36,785 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1763 transitions. [2023-08-26 23:40:36,785 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1763 transitions. [2023-08-26 23:40:36,785 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 23:40:36,786 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1763 transitions. [2023-08-26 23:40:36,788 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 587.6666666666666) internal successors, (1763), 3 states have internal predecessors, (1763), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:40:36,790 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1416.0) internal successors, (5664), 4 states have internal predecessors, (5664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:40:36,791 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1416.0) internal successors, (5664), 4 states have internal predecessors, (5664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:40:36,791 INFO L175 Difference]: Start difference. First operand has 74 places, 86 transitions, 319 flow. Second operand 3 states and 1763 transitions. [2023-08-26 23:40:36,791 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 92 transitions, 515 flow [2023-08-26 23:40:36,792 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 92 transitions, 514 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-26 23:40:36,793 INFO L231 Difference]: Finished difference. Result has 77 places, 92 transitions, 398 flow [2023-08-26 23:40:36,793 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1416, PETRI_DIFFERENCE_MINUEND_FLOW=318, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=398, PETRI_PLACES=77, PETRI_TRANSITIONS=92} [2023-08-26 23:40:36,793 INFO L281 CegarLoopForPetriNet]: 84 programPoint places, -7 predicate places. [2023-08-26 23:40:36,793 INFO L495 AbstractCegarLoop]: Abstraction has has 77 places, 92 transitions, 398 flow [2023-08-26 23:40:36,794 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 564.6666666666666) internal successors, (1694), 3 states have internal predecessors, (1694), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:40:36,794 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 23:40:36,794 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-26 23:40:36,794 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-26 23:40:36,794 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-08-26 23:40:36,794 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 23:40:36,794 INFO L85 PathProgramCache]: Analyzing trace with hash 455495527, now seen corresponding path program 1 times [2023-08-26 23:40:36,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 23:40:36,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321722263] [2023-08-26 23:40:36,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 23:40:36,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 23:40:36,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 23:40:36,839 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-26 23:40:36,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 23:40:36,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1321722263] [2023-08-26 23:40:36,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1321722263] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 23:40:36,839 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 23:40:36,839 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 23:40:36,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491550730] [2023-08-26 23:40:36,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 23:40:36,840 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 23:40:36,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 23:40:36,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 23:40:36,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 23:40:36,841 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 551 out of 1416 [2023-08-26 23:40:36,842 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 92 transitions, 398 flow. Second operand has 3 states, 3 states have (on average 553.0) internal successors, (1659), 3 states have internal predecessors, (1659), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:40:36,842 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 23:40:36,842 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 551 of 1416 [2023-08-26 23:40:36,842 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 23:40:37,411 INFO L124 PetriNetUnfolderBase]: 4333/6226 cut-off events. [2023-08-26 23:40:37,411 INFO L125 PetriNetUnfolderBase]: For 79/79 co-relation queries the response was YES. [2023-08-26 23:40:37,417 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12703 conditions, 6226 events. 4333/6226 cut-off events. For 79/79 co-relation queries the response was YES. Maximal size of possible extension queue 285. Compared 30025 event pairs, 3825 based on Foata normal form. 1/3377 useless extension candidates. Maximal degree in co-relation 12693. Up to 6226 conditions per place. [2023-08-26 23:40:37,426 INFO L140 encePairwiseOnDemand]: 1413/1416 looper letters, 89 selfloop transitions, 2 changer transitions 0/91 dead transitions. [2023-08-26 23:40:37,426 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 91 transitions, 576 flow [2023-08-26 23:40:37,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 23:40:37,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 23:40:37,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1717 transitions. [2023-08-26 23:40:37,429 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4041902071563089 [2023-08-26 23:40:37,429 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1717 transitions. [2023-08-26 23:40:37,429 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1717 transitions. [2023-08-26 23:40:37,429 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 23:40:37,429 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1717 transitions. [2023-08-26 23:40:37,431 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 572.3333333333334) internal successors, (1717), 3 states have internal predecessors, (1717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:40:37,434 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1416.0) internal successors, (5664), 4 states have internal predecessors, (5664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:40:37,434 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1416.0) internal successors, (5664), 4 states have internal predecessors, (5664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:40:37,434 INFO L175 Difference]: Start difference. First operand has 77 places, 92 transitions, 398 flow. Second operand 3 states and 1717 transitions. [2023-08-26 23:40:37,434 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 91 transitions, 576 flow [2023-08-26 23:40:37,435 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 91 transitions, 554 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-26 23:40:37,436 INFO L231 Difference]: Finished difference. Result has 77 places, 91 transitions, 376 flow [2023-08-26 23:40:37,436 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1416, PETRI_DIFFERENCE_MINUEND_FLOW=372, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=376, PETRI_PLACES=77, PETRI_TRANSITIONS=91} [2023-08-26 23:40:37,436 INFO L281 CegarLoopForPetriNet]: 84 programPoint places, -7 predicate places. [2023-08-26 23:40:37,437 INFO L495 AbstractCegarLoop]: Abstraction has has 77 places, 91 transitions, 376 flow [2023-08-26 23:40:37,437 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 553.0) internal successors, (1659), 3 states have internal predecessors, (1659), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:40:37,437 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 23:40:37,437 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1] [2023-08-26 23:40:37,437 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-26 23:40:37,437 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-08-26 23:40:37,437 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 23:40:37,437 INFO L85 PathProgramCache]: Analyzing trace with hash 309583085, now seen corresponding path program 2 times [2023-08-26 23:40:37,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 23:40:37,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56103467] [2023-08-26 23:40:37,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 23:40:37,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 23:40:37,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 23:40:37,489 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 23:40:37,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 23:40:37,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56103467] [2023-08-26 23:40:37,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [56103467] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-26 23:40:37,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1917997007] [2023-08-26 23:40:37,489 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-26 23:40:37,490 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 23:40:37,490 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 23:40:37,493 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-26 23:40:37,495 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-08-26 23:40:37,581 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-08-26 23:40:37,581 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-26 23:40:37,582 INFO L262 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 6 conjunts are in the unsatisfiable core [2023-08-26 23:40:37,582 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-26 23:40:37,594 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-08-26 23:40:37,594 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-26 23:40:37,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1917997007] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 23:40:37,595 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-26 23:40:37,595 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [5] total 6 [2023-08-26 23:40:37,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252162536] [2023-08-26 23:40:37,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 23:40:37,595 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 23:40:37,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 23:40:37,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 23:40:37,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2023-08-26 23:40:37,597 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 566 out of 1416 [2023-08-26 23:40:37,597 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 91 transitions, 376 flow. Second operand has 3 states, 3 states have (on average 567.0) internal successors, (1701), 3 states have internal predecessors, (1701), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:40:37,597 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 23:40:37,597 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 566 of 1416 [2023-08-26 23:40:37,597 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 23:40:38,175 INFO L124 PetriNetUnfolderBase]: 4333/6223 cut-off events. [2023-08-26 23:40:38,175 INFO L125 PetriNetUnfolderBase]: For 73/73 co-relation queries the response was YES. [2023-08-26 23:40:38,182 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12676 conditions, 6223 events. 4333/6223 cut-off events. For 73/73 co-relation queries the response was YES. Maximal size of possible extension queue 285. Compared 30019 event pairs, 3825 based on Foata normal form. 3/3372 useless extension candidates. Maximal degree in co-relation 12666. Up to 6223 conditions per place. [2023-08-26 23:40:38,192 INFO L140 encePairwiseOnDemand]: 1412/1416 looper letters, 87 selfloop transitions, 1 changer transitions 0/88 dead transitions. [2023-08-26 23:40:38,192 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 88 transitions, 522 flow [2023-08-26 23:40:38,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 23:40:38,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 23:40:38,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1760 transitions. [2023-08-26 23:40:38,195 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4143126177024482 [2023-08-26 23:40:38,195 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1760 transitions. [2023-08-26 23:40:38,195 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1760 transitions. [2023-08-26 23:40:38,196 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 23:40:38,196 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1760 transitions. [2023-08-26 23:40:38,198 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 586.6666666666666) internal successors, (1760), 3 states have internal predecessors, (1760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:40:38,201 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1416.0) internal successors, (5664), 4 states have internal predecessors, (5664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:40:38,201 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1416.0) internal successors, (5664), 4 states have internal predecessors, (5664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:40:38,202 INFO L175 Difference]: Start difference. First operand has 77 places, 91 transitions, 376 flow. Second operand 3 states and 1760 transitions. [2023-08-26 23:40:38,202 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 88 transitions, 522 flow [2023-08-26 23:40:38,202 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 88 transitions, 470 flow, removed 5 selfloop flow, removed 5 redundant places. [2023-08-26 23:40:38,203 INFO L231 Difference]: Finished difference. Result has 71 places, 88 transitions, 296 flow [2023-08-26 23:40:38,203 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1416, PETRI_DIFFERENCE_MINUEND_FLOW=294, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=296, PETRI_PLACES=71, PETRI_TRANSITIONS=88} [2023-08-26 23:40:38,204 INFO L281 CegarLoopForPetriNet]: 84 programPoint places, -13 predicate places. [2023-08-26 23:40:38,204 INFO L495 AbstractCegarLoop]: Abstraction has has 71 places, 88 transitions, 296 flow [2023-08-26 23:40:38,204 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 567.0) internal successors, (1701), 3 states have internal predecessors, (1701), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:40:38,204 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 23:40:38,204 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-26 23:40:38,209 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-08-26 23:40:38,409 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-08-26 23:40:38,409 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-08-26 23:40:38,409 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 23:40:38,409 INFO L85 PathProgramCache]: Analyzing trace with hash 1153057060, now seen corresponding path program 1 times [2023-08-26 23:40:38,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 23:40:38,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635672722] [2023-08-26 23:40:38,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 23:40:38,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 23:40:38,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 23:40:38,486 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-26 23:40:38,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 23:40:38,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [635672722] [2023-08-26 23:40:38,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [635672722] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 23:40:38,487 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 23:40:38,487 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-26 23:40:38,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542307142] [2023-08-26 23:40:38,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 23:40:38,488 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-26 23:40:38,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 23:40:38,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-26 23:40:38,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-26 23:40:38,490 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 531 out of 1416 [2023-08-26 23:40:38,491 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 88 transitions, 296 flow. Second operand has 4 states, 4 states have (on average 532.75) internal successors, (2131), 4 states have internal predecessors, (2131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:40:38,491 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 23:40:38,491 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 531 of 1416 [2023-08-26 23:40:38,491 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 23:40:39,219 INFO L124 PetriNetUnfolderBase]: 4332/6222 cut-off events. [2023-08-26 23:40:39,219 INFO L125 PetriNetUnfolderBase]: For 63/63 co-relation queries the response was YES. [2023-08-26 23:40:39,226 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12642 conditions, 6222 events. 4332/6222 cut-off events. For 63/63 co-relation queries the response was YES. Maximal size of possible extension queue 285. Compared 30013 event pairs, 3825 based on Foata normal form. 0/3362 useless extension candidates. Maximal degree in co-relation 12636. Up to 6217 conditions per place. [2023-08-26 23:40:39,240 INFO L140 encePairwiseOnDemand]: 1411/1416 looper letters, 80 selfloop transitions, 7 changer transitions 0/87 dead transitions. [2023-08-26 23:40:39,240 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 87 transitions, 466 flow [2023-08-26 23:40:39,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-26 23:40:39,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-26 23:40:39,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 2186 transitions. [2023-08-26 23:40:39,244 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3859463276836158 [2023-08-26 23:40:39,244 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 2186 transitions. [2023-08-26 23:40:39,244 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 2186 transitions. [2023-08-26 23:40:39,245 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 23:40:39,245 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 2186 transitions. [2023-08-26 23:40:39,247 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 546.5) internal successors, (2186), 4 states have internal predecessors, (2186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:40:39,251 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 1416.0) internal successors, (7080), 5 states have internal predecessors, (7080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:40:39,251 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 1416.0) internal successors, (7080), 5 states have internal predecessors, (7080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:40:39,251 INFO L175 Difference]: Start difference. First operand has 71 places, 88 transitions, 296 flow. Second operand 4 states and 2186 transitions. [2023-08-26 23:40:39,252 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 87 transitions, 466 flow [2023-08-26 23:40:39,252 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 87 transitions, 465 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-26 23:40:39,253 INFO L231 Difference]: Finished difference. Result has 73 places, 87 transitions, 305 flow [2023-08-26 23:40:39,253 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1416, PETRI_DIFFERENCE_MINUEND_FLOW=291, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=305, PETRI_PLACES=73, PETRI_TRANSITIONS=87} [2023-08-26 23:40:39,254 INFO L281 CegarLoopForPetriNet]: 84 programPoint places, -11 predicate places. [2023-08-26 23:40:39,254 INFO L495 AbstractCegarLoop]: Abstraction has has 73 places, 87 transitions, 305 flow [2023-08-26 23:40:39,254 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 532.75) internal successors, (2131), 4 states have internal predecessors, (2131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:40:39,254 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 23:40:39,254 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 23:40:39,254 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-08-26 23:40:39,255 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-08-26 23:40:39,255 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 23:40:39,255 INFO L85 PathProgramCache]: Analyzing trace with hash 1280792474, now seen corresponding path program 1 times [2023-08-26 23:40:39,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 23:40:39,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139540434] [2023-08-26 23:40:39,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 23:40:39,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 23:40:39,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 23:40:39,315 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-08-26 23:40:39,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 23:40:39,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139540434] [2023-08-26 23:40:39,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1139540434] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 23:40:39,316 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 23:40:39,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-26 23:40:39,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051752222] [2023-08-26 23:40:39,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 23:40:39,317 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-26 23:40:39,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 23:40:39,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-26 23:40:39,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-26 23:40:39,318 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 531 out of 1416 [2023-08-26 23:40:39,319 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 87 transitions, 305 flow. Second operand has 4 states, 4 states have (on average 533.0) internal successors, (2132), 4 states have internal predecessors, (2132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:40:39,319 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 23:40:39,319 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 531 of 1416 [2023-08-26 23:40:39,319 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 23:40:39,899 INFO L124 PetriNetUnfolderBase]: 4331/6221 cut-off events. [2023-08-26 23:40:39,899 INFO L125 PetriNetUnfolderBase]: For 63/63 co-relation queries the response was YES. [2023-08-26 23:40:39,905 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12645 conditions, 6221 events. 4331/6221 cut-off events. For 63/63 co-relation queries the response was YES. Maximal size of possible extension queue 285. Compared 29994 event pairs, 3825 based on Foata normal form. 1/3366 useless extension candidates. Maximal degree in co-relation 12639. Up to 6216 conditions per place. [2023-08-26 23:40:39,915 INFO L140 encePairwiseOnDemand]: 1411/1416 looper letters, 79 selfloop transitions, 7 changer transitions 0/86 dead transitions. [2023-08-26 23:40:39,915 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 86 transitions, 471 flow [2023-08-26 23:40:39,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-26 23:40:39,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-26 23:40:39,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 2186 transitions. [2023-08-26 23:40:39,919 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3859463276836158 [2023-08-26 23:40:39,919 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 2186 transitions. [2023-08-26 23:40:39,920 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 2186 transitions. [2023-08-26 23:40:39,920 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 23:40:39,920 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 2186 transitions. [2023-08-26 23:40:39,923 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 546.5) internal successors, (2186), 4 states have internal predecessors, (2186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:40:39,926 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 1416.0) internal successors, (7080), 5 states have internal predecessors, (7080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:40:39,927 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 1416.0) internal successors, (7080), 5 states have internal predecessors, (7080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:40:39,927 INFO L175 Difference]: Start difference. First operand has 73 places, 87 transitions, 305 flow. Second operand 4 states and 2186 transitions. [2023-08-26 23:40:39,927 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 86 transitions, 471 flow [2023-08-26 23:40:39,927 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 86 transitions, 470 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-26 23:40:39,928 INFO L231 Difference]: Finished difference. Result has 75 places, 86 transitions, 312 flow [2023-08-26 23:40:39,928 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1416, PETRI_DIFFERENCE_MINUEND_FLOW=298, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=312, PETRI_PLACES=75, PETRI_TRANSITIONS=86} [2023-08-26 23:40:39,929 INFO L281 CegarLoopForPetriNet]: 84 programPoint places, -9 predicate places. [2023-08-26 23:40:39,929 INFO L495 AbstractCegarLoop]: Abstraction has has 75 places, 86 transitions, 312 flow [2023-08-26 23:40:39,929 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 533.0) internal successors, (2132), 4 states have internal predecessors, (2132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:40:39,929 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 23:40:39,929 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 23:40:39,929 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-08-26 23:40:39,929 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-08-26 23:40:39,929 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 23:40:39,930 INFO L85 PathProgramCache]: Analyzing trace with hash 1045869786, now seen corresponding path program 1 times [2023-08-26 23:40:39,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 23:40:39,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248519259] [2023-08-26 23:40:39,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 23:40:39,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 23:40:39,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 23:40:39,974 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-08-26 23:40:39,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 23:40:39,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248519259] [2023-08-26 23:40:39,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1248519259] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-26 23:40:39,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [750202100] [2023-08-26 23:40:39,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 23:40:39,975 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 23:40:39,975 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 23:40:39,975 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-26 23:40:39,977 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-08-26 23:40:40,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 23:40:40,088 INFO L262 TraceCheckSpWp]: Trace formula consists of 272 conjuncts, 10 conjunts are in the unsatisfiable core [2023-08-26 23:40:40,089 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-26 23:40:40,138 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-26 23:40:40,138 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-26 23:40:40,193 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-26 23:40:40,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [750202100] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-26 23:40:40,193 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-26 23:40:40,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 5, 5] total 12 [2023-08-26 23:40:40,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160792111] [2023-08-26 23:40:40,193 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-26 23:40:40,194 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-26 23:40:40,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 23:40:40,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-26 23:40:40,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2023-08-26 23:40:40,197 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 498 out of 1416 [2023-08-26 23:40:40,200 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 86 transitions, 312 flow. Second operand has 13 states, 13 states have (on average 499.84615384615387) internal successors, (6498), 13 states have internal predecessors, (6498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:40:40,200 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 23:40:40,200 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 498 of 1416 [2023-08-26 23:40:40,200 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 23:40:41,449 INFO L124 PetriNetUnfolderBase]: 8666/12444 cut-off events. [2023-08-26 23:40:41,449 INFO L125 PetriNetUnfolderBase]: For 126/126 co-relation queries the response was YES. [2023-08-26 23:40:41,462 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25289 conditions, 12444 events. 8666/12444 cut-off events. For 126/126 co-relation queries the response was YES. Maximal size of possible extension queue 510. Compared 67172 event pairs, 7650 based on Foata normal form. 0/6733 useless extension candidates. Maximal degree in co-relation 25283. Up to 6209 conditions per place. [2023-08-26 23:40:41,483 INFO L140 encePairwiseOnDemand]: 1400/1416 looper letters, 134 selfloop transitions, 40 changer transitions 0/174 dead transitions. [2023-08-26 23:40:41,483 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 174 transitions, 958 flow [2023-08-26 23:40:41,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-26 23:40:41,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-26 23:40:41,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 5628 transitions. [2023-08-26 23:40:41,490 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3613251155624037 [2023-08-26 23:40:41,490 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 5628 transitions. [2023-08-26 23:40:41,490 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 5628 transitions. [2023-08-26 23:40:41,491 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 23:40:41,491 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 5628 transitions. [2023-08-26 23:40:41,496 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 511.6363636363636) internal successors, (5628), 11 states have internal predecessors, (5628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:40:41,503 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 1416.0) internal successors, (16992), 12 states have internal predecessors, (16992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:40:41,504 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 1416.0) internal successors, (16992), 12 states have internal predecessors, (16992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:40:41,504 INFO L175 Difference]: Start difference. First operand has 75 places, 86 transitions, 312 flow. Second operand 11 states and 5628 transitions. [2023-08-26 23:40:41,504 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 174 transitions, 958 flow [2023-08-26 23:40:41,505 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 174 transitions, 928 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-26 23:40:41,506 INFO L231 Difference]: Finished difference. Result has 88 places, 112 transitions, 583 flow [2023-08-26 23:40:41,506 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1416, PETRI_DIFFERENCE_MINUEND_FLOW=293, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=583, PETRI_PLACES=88, PETRI_TRANSITIONS=112} [2023-08-26 23:40:41,507 INFO L281 CegarLoopForPetriNet]: 84 programPoint places, 4 predicate places. [2023-08-26 23:40:41,507 INFO L495 AbstractCegarLoop]: Abstraction has has 88 places, 112 transitions, 583 flow [2023-08-26 23:40:41,507 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 499.84615384615387) internal successors, (6498), 13 states have internal predecessors, (6498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:40:41,507 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 23:40:41,507 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 23:40:41,529 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-08-26 23:40:41,712 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 23:40:41,712 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-08-26 23:40:41,712 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 23:40:41,712 INFO L85 PathProgramCache]: Analyzing trace with hash 52086648, now seen corresponding path program 1 times [2023-08-26 23:40:41,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 23:40:41,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004052141] [2023-08-26 23:40:41,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 23:40:41,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 23:40:41,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 23:40:41,783 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-08-26 23:40:41,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 23:40:41,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2004052141] [2023-08-26 23:40:41,784 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2004052141] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-26 23:40:41,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1361869610] [2023-08-26 23:40:41,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 23:40:41,784 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 23:40:41,784 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 23:40:41,785 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-26 23:40:41,787 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-08-26 23:40:41,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 23:40:41,899 INFO L262 TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 12 conjunts are in the unsatisfiable core [2023-08-26 23:40:41,901 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-26 23:40:41,974 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-26 23:40:41,975 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-26 23:40:42,075 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-26 23:40:42,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1361869610] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-26 23:40:42,075 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-26 23:40:42,075 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 7, 7] total 17 [2023-08-26 23:40:42,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604200936] [2023-08-26 23:40:42,075 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-26 23:40:42,076 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-08-26 23:40:42,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 23:40:42,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-08-26 23:40:42,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=242, Unknown=0, NotChecked=0, Total=306 [2023-08-26 23:40:42,079 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 498 out of 1416 [2023-08-26 23:40:42,082 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 112 transitions, 583 flow. Second operand has 18 states, 18 states have (on average 499.6111111111111) internal successors, (8993), 18 states have internal predecessors, (8993), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:40:42,082 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 23:40:42,082 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 498 of 1416 [2023-08-26 23:40:42,083 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 23:40:44,147 INFO L124 PetriNetUnfolderBase]: 12989/18646 cut-off events. [2023-08-26 23:40:44,147 INFO L125 PetriNetUnfolderBase]: For 227/227 co-relation queries the response was YES. [2023-08-26 23:40:44,171 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37971 conditions, 18646 events. 12989/18646 cut-off events. For 227/227 co-relation queries the response was YES. Maximal size of possible extension queue 728. Compared 106868 event pairs, 11475 based on Foata normal form. 17/10118 useless extension candidates. Maximal degree in co-relation 37960. Up to 12386 conditions per place. [2023-08-26 23:40:44,210 INFO L140 encePairwiseOnDemand]: 1402/1416 looper letters, 125 selfloop transitions, 56 changer transitions 0/181 dead transitions. [2023-08-26 23:40:44,210 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 181 transitions, 1198 flow [2023-08-26 23:40:44,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-08-26 23:40:44,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-08-26 23:40:44,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 7620 transitions. [2023-08-26 23:40:44,220 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3587570621468927 [2023-08-26 23:40:44,220 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 7620 transitions. [2023-08-26 23:40:44,220 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 7620 transitions. [2023-08-26 23:40:44,221 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 23:40:44,222 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 7620 transitions. [2023-08-26 23:40:44,228 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 508.0) internal successors, (7620), 15 states have internal predecessors, (7620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:40:44,239 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 1416.0) internal successors, (22656), 16 states have internal predecessors, (22656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:40:44,241 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 1416.0) internal successors, (22656), 16 states have internal predecessors, (22656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:40:44,241 INFO L175 Difference]: Start difference. First operand has 88 places, 112 transitions, 583 flow. Second operand 15 states and 7620 transitions. [2023-08-26 23:40:44,241 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 181 transitions, 1198 flow [2023-08-26 23:40:44,243 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 181 transitions, 1134 flow, removed 14 selfloop flow, removed 3 redundant places. [2023-08-26 23:40:44,244 INFO L231 Difference]: Finished difference. Result has 98 places, 122 transitions, 725 flow [2023-08-26 23:40:44,244 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1416, PETRI_DIFFERENCE_MINUEND_FLOW=474, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=38, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=725, PETRI_PLACES=98, PETRI_TRANSITIONS=122} [2023-08-26 23:40:44,245 INFO L281 CegarLoopForPetriNet]: 84 programPoint places, 14 predicate places. [2023-08-26 23:40:44,245 INFO L495 AbstractCegarLoop]: Abstraction has has 98 places, 122 transitions, 725 flow [2023-08-26 23:40:44,246 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 499.6111111111111) internal successors, (8993), 18 states have internal predecessors, (8993), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:40:44,246 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 23:40:44,246 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 23:40:44,253 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-08-26 23:40:44,450 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-08-26 23:40:44,450 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-08-26 23:40:44,451 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 23:40:44,451 INFO L85 PathProgramCache]: Analyzing trace with hash 59916300, now seen corresponding path program 1 times [2023-08-26 23:40:44,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 23:40:44,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [956137206] [2023-08-26 23:40:44,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 23:40:44,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 23:40:44,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 23:40:44,522 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-08-26 23:40:44,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 23:40:44,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [956137206] [2023-08-26 23:40:44,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [956137206] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 23:40:44,523 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 23:40:44,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-26 23:40:44,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286287692] [2023-08-26 23:40:44,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 23:40:44,523 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-26 23:40:44,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 23:40:44,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-26 23:40:44,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-26 23:40:44,525 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 534 out of 1416 [2023-08-26 23:40:44,526 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 122 transitions, 725 flow. Second operand has 4 states, 4 states have (on average 536.5) internal successors, (2146), 4 states have internal predecessors, (2146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:40:44,526 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 23:40:44,526 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 534 of 1416 [2023-08-26 23:40:44,526 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 23:40:46,261 INFO L124 PetriNetUnfolderBase]: 12986/18643 cut-off events. [2023-08-26 23:40:46,261 INFO L125 PetriNetUnfolderBase]: For 291/291 co-relation queries the response was YES. [2023-08-26 23:40:46,289 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37988 conditions, 18643 events. 12986/18643 cut-off events. For 291/291 co-relation queries the response was YES. Maximal size of possible extension queue 728. Compared 106866 event pairs, 11475 based on Foata normal form. 3/10104 useless extension candidates. Maximal degree in co-relation 37975. Up to 18631 conditions per place. [2023-08-26 23:40:46,325 INFO L140 encePairwiseOnDemand]: 1412/1416 looper letters, 103 selfloop transitions, 16 changer transitions 0/119 dead transitions. [2023-08-26 23:40:46,325 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 119 transitions, 938 flow [2023-08-26 23:40:46,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-26 23:40:46,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-26 23:40:46,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 2194 transitions. [2023-08-26 23:40:46,330 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3873587570621469 [2023-08-26 23:40:46,330 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 2194 transitions. [2023-08-26 23:40:46,330 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 2194 transitions. [2023-08-26 23:40:46,330 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 23:40:46,330 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 2194 transitions. [2023-08-26 23:40:46,332 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 548.5) internal successors, (2194), 4 states have internal predecessors, (2194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:40:46,334 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 1416.0) internal successors, (7080), 5 states have internal predecessors, (7080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:40:46,334 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 1416.0) internal successors, (7080), 5 states have internal predecessors, (7080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:40:46,335 INFO L175 Difference]: Start difference. First operand has 98 places, 122 transitions, 725 flow. Second operand 4 states and 2194 transitions. [2023-08-26 23:40:46,335 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 119 transitions, 938 flow [2023-08-26 23:40:46,337 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 119 transitions, 912 flow, removed 3 selfloop flow, removed 4 redundant places. [2023-08-26 23:40:46,339 INFO L231 Difference]: Finished difference. Result has 97 places, 119 transitions, 706 flow [2023-08-26 23:40:46,339 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1416, PETRI_DIFFERENCE_MINUEND_FLOW=674, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=119, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=706, PETRI_PLACES=97, PETRI_TRANSITIONS=119} [2023-08-26 23:40:46,339 INFO L281 CegarLoopForPetriNet]: 84 programPoint places, 13 predicate places. [2023-08-26 23:40:46,340 INFO L495 AbstractCegarLoop]: Abstraction has has 97 places, 119 transitions, 706 flow [2023-08-26 23:40:46,340 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 536.5) internal successors, (2146), 4 states have internal predecessors, (2146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:40:46,340 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 23:40:46,340 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 23:40:46,340 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-08-26 23:40:46,340 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-08-26 23:40:46,340 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 23:40:46,340 INFO L85 PathProgramCache]: Analyzing trace with hash 1608082454, now seen corresponding path program 2 times [2023-08-26 23:40:46,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 23:40:46,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430852929] [2023-08-26 23:40:46,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 23:40:46,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 23:40:46,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 23:40:46,424 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-08-26 23:40:46,425 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 23:40:46,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430852929] [2023-08-26 23:40:46,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [430852929] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-26 23:40:46,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [85504860] [2023-08-26 23:40:46,425 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-26 23:40:46,425 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 23:40:46,425 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 23:40:46,426 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-26 23:40:46,428 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-08-26 23:40:46,540 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-08-26 23:40:46,540 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-26 23:40:46,541 INFO L262 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 6 conjunts are in the unsatisfiable core [2023-08-26 23:40:46,542 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-26 23:40:46,549 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-08-26 23:40:46,550 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-26 23:40:46,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [85504860] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 23:40:46,550 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-26 23:40:46,550 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2023-08-26 23:40:46,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622356273] [2023-08-26 23:40:46,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 23:40:46,551 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 23:40:46,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 23:40:46,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 23:40:46,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-08-26 23:40:46,553 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 569 out of 1416 [2023-08-26 23:40:46,554 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 119 transitions, 706 flow. Second operand has 3 states, 3 states have (on average 572.0) internal successors, (1716), 3 states have internal predecessors, (1716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:40:46,554 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 23:40:46,554 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 569 of 1416 [2023-08-26 23:40:46,554 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 23:40:48,109 INFO L124 PetriNetUnfolderBase]: 12986/18636 cut-off events. [2023-08-26 23:40:48,110 INFO L125 PetriNetUnfolderBase]: For 288/288 co-relation queries the response was YES. [2023-08-26 23:40:48,144 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37959 conditions, 18636 events. 12986/18636 cut-off events. For 288/288 co-relation queries the response was YES. Maximal size of possible extension queue 728. Compared 106234 event pairs, 11475 based on Foata normal form. 0/10101 useless extension candidates. Maximal degree in co-relation 37947. Up to 18584 conditions per place. [2023-08-26 23:40:48,184 INFO L140 encePairwiseOnDemand]: 1412/1416 looper letters, 104 selfloop transitions, 12 changer transitions 0/116 dead transitions. [2023-08-26 23:40:48,184 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 116 transitions, 912 flow [2023-08-26 23:40:48,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 23:40:48,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 23:40:48,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1763 transitions. [2023-08-26 23:40:48,186 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4150188323917137 [2023-08-26 23:40:48,186 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1763 transitions. [2023-08-26 23:40:48,186 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1763 transitions. [2023-08-26 23:40:48,186 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 23:40:48,187 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1763 transitions. [2023-08-26 23:40:48,188 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 587.6666666666666) internal successors, (1763), 3 states have internal predecessors, (1763), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:40:48,190 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1416.0) internal successors, (5664), 4 states have internal predecessors, (5664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:40:48,190 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1416.0) internal successors, (5664), 4 states have internal predecessors, (5664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:40:48,190 INFO L175 Difference]: Start difference. First operand has 97 places, 119 transitions, 706 flow. Second operand 3 states and 1763 transitions. [2023-08-26 23:40:48,190 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 116 transitions, 912 flow [2023-08-26 23:40:48,192 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 116 transitions, 893 flow, removed 1 selfloop flow, removed 2 redundant places. [2023-08-26 23:40:48,193 INFO L231 Difference]: Finished difference. Result has 94 places, 116 transitions, 685 flow [2023-08-26 23:40:48,193 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1416, PETRI_DIFFERENCE_MINUEND_FLOW=661, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=116, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=685, PETRI_PLACES=94, PETRI_TRANSITIONS=116} [2023-08-26 23:40:48,193 INFO L281 CegarLoopForPetriNet]: 84 programPoint places, 10 predicate places. [2023-08-26 23:40:48,193 INFO L495 AbstractCegarLoop]: Abstraction has has 94 places, 116 transitions, 685 flow [2023-08-26 23:40:48,194 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 572.0) internal successors, (1716), 3 states have internal predecessors, (1716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:40:48,194 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 23:40:48,194 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 23:40:48,200 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-08-26 23:40:48,397 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 23:40:48,397 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-08-26 23:40:48,397 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 23:40:48,397 INFO L85 PathProgramCache]: Analyzing trace with hash 687451981, now seen corresponding path program 1 times [2023-08-26 23:40:48,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 23:40:48,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107612129] [2023-08-26 23:40:48,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 23:40:48,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 23:40:48,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 23:40:48,492 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-08-26 23:40:48,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 23:40:48,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [107612129] [2023-08-26 23:40:48,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [107612129] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 23:40:48,493 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 23:40:48,493 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-26 23:40:48,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846577862] [2023-08-26 23:40:48,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 23:40:48,493 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-26 23:40:48,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 23:40:48,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-26 23:40:48,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-26 23:40:48,494 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 534 out of 1416 [2023-08-26 23:40:48,495 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 116 transitions, 685 flow. Second operand has 4 states, 4 states have (on average 538.25) internal successors, (2153), 4 states have internal predecessors, (2153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:40:48,495 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 23:40:48,495 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 534 of 1416 [2023-08-26 23:40:48,495 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 23:40:50,150 INFO L124 PetriNetUnfolderBase]: 12983/18633 cut-off events. [2023-08-26 23:40:50,150 INFO L125 PetriNetUnfolderBase]: For 276/276 co-relation queries the response was YES. [2023-08-26 23:40:50,172 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37957 conditions, 18633 events. 12983/18633 cut-off events. For 276/276 co-relation queries the response was YES. Maximal size of possible extension queue 728. Compared 106156 event pairs, 11475 based on Foata normal form. 3/10101 useless extension candidates. Maximal degree in co-relation 37945. Up to 18628 conditions per place. [2023-08-26 23:40:50,202 INFO L140 encePairwiseOnDemand]: 1412/1416 looper letters, 106 selfloop transitions, 9 changer transitions 0/115 dead transitions. [2023-08-26 23:40:50,202 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 115 transitions, 911 flow [2023-08-26 23:40:50,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-26 23:40:50,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-26 23:40:50,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 2191 transitions. [2023-08-26 23:40:50,205 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3868290960451977 [2023-08-26 23:40:50,205 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 2191 transitions. [2023-08-26 23:40:50,205 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 2191 transitions. [2023-08-26 23:40:50,206 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 23:40:50,206 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 2191 transitions. [2023-08-26 23:40:50,207 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 547.75) internal successors, (2191), 4 states have internal predecessors, (2191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:40:50,210 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 1416.0) internal successors, (7080), 5 states have internal predecessors, (7080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:40:50,210 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 1416.0) internal successors, (7080), 5 states have internal predecessors, (7080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:40:50,210 INFO L175 Difference]: Start difference. First operand has 94 places, 116 transitions, 685 flow. Second operand 4 states and 2191 transitions. [2023-08-26 23:40:50,210 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 115 transitions, 911 flow [2023-08-26 23:40:50,214 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 115 transitions, 864 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-26 23:40:50,215 INFO L231 Difference]: Finished difference. Result has 95 places, 115 transitions, 652 flow [2023-08-26 23:40:50,216 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1416, PETRI_DIFFERENCE_MINUEND_FLOW=634, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=115, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=652, PETRI_PLACES=95, PETRI_TRANSITIONS=115} [2023-08-26 23:40:50,216 INFO L281 CegarLoopForPetriNet]: 84 programPoint places, 11 predicate places. [2023-08-26 23:40:50,216 INFO L495 AbstractCegarLoop]: Abstraction has has 95 places, 115 transitions, 652 flow [2023-08-26 23:40:50,216 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 538.25) internal successors, (2153), 4 states have internal predecessors, (2153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:40:50,216 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 23:40:50,216 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 23:40:50,216 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-08-26 23:40:50,217 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-08-26 23:40:50,217 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 23:40:50,217 INFO L85 PathProgramCache]: Analyzing trace with hash 916432052, now seen corresponding path program 1 times [2023-08-26 23:40:50,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 23:40:50,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260030] [2023-08-26 23:40:50,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 23:40:50,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 23:40:50,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 23:40:50,311 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-08-26 23:40:50,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 23:40:50,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260030] [2023-08-26 23:40:50,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1260030] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 23:40:50,311 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 23:40:50,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-26 23:40:50,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106983443] [2023-08-26 23:40:50,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 23:40:50,313 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-26 23:40:50,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 23:40:50,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-26 23:40:50,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-26 23:40:50,314 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 534 out of 1416 [2023-08-26 23:40:50,315 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 115 transitions, 652 flow. Second operand has 4 states, 4 states have (on average 538.5) internal successors, (2154), 4 states have internal predecessors, (2154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:40:50,315 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 23:40:50,315 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 534 of 1416 [2023-08-26 23:40:50,315 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 23:40:52,126 INFO L124 PetriNetUnfolderBase]: 12980/18630 cut-off events. [2023-08-26 23:40:52,126 INFO L125 PetriNetUnfolderBase]: For 246/246 co-relation queries the response was YES. [2023-08-26 23:40:52,154 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37928 conditions, 18630 events. 12980/18630 cut-off events. For 246/246 co-relation queries the response was YES. Maximal size of possible extension queue 728. Compared 106193 event pairs, 11475 based on Foata normal form. 3/10098 useless extension candidates. Maximal degree in co-relation 37916. Up to 18624 conditions per place. [2023-08-26 23:40:52,197 INFO L140 encePairwiseOnDemand]: 1412/1416 looper letters, 102 selfloop transitions, 10 changer transitions 0/112 dead transitions. [2023-08-26 23:40:52,197 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 112 transitions, 855 flow [2023-08-26 23:40:52,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-26 23:40:52,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-26 23:40:52,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 2191 transitions. [2023-08-26 23:40:52,201 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3868290960451977 [2023-08-26 23:40:52,201 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 2191 transitions. [2023-08-26 23:40:52,201 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 2191 transitions. [2023-08-26 23:40:52,201 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 23:40:52,201 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 2191 transitions. [2023-08-26 23:40:52,203 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 547.75) internal successors, (2191), 4 states have internal predecessors, (2191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:40:52,206 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 1416.0) internal successors, (7080), 5 states have internal predecessors, (7080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:40:52,206 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 1416.0) internal successors, (7080), 5 states have internal predecessors, (7080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:40:52,206 INFO L175 Difference]: Start difference. First operand has 95 places, 115 transitions, 652 flow. Second operand 4 states and 2191 transitions. [2023-08-26 23:40:52,206 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 112 transitions, 855 flow [2023-08-26 23:40:52,208 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 112 transitions, 839 flow, removed 3 selfloop flow, removed 2 redundant places. [2023-08-26 23:40:52,209 INFO L231 Difference]: Finished difference. Result has 96 places, 112 transitions, 635 flow [2023-08-26 23:40:52,209 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1416, PETRI_DIFFERENCE_MINUEND_FLOW=615, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=102, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=635, PETRI_PLACES=96, PETRI_TRANSITIONS=112} [2023-08-26 23:40:52,210 INFO L281 CegarLoopForPetriNet]: 84 programPoint places, 12 predicate places. [2023-08-26 23:40:52,210 INFO L495 AbstractCegarLoop]: Abstraction has has 96 places, 112 transitions, 635 flow [2023-08-26 23:40:52,210 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 538.5) internal successors, (2154), 4 states have internal predecessors, (2154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:40:52,210 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 23:40:52,210 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 23:40:52,210 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-08-26 23:40:52,210 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-08-26 23:40:52,211 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 23:40:52,211 INFO L85 PathProgramCache]: Analyzing trace with hash 2072725650, now seen corresponding path program 1 times [2023-08-26 23:40:52,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 23:40:52,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1892447889] [2023-08-26 23:40:52,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 23:40:52,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 23:40:52,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 23:40:53,153 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-26 23:40:53,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 23:40:53,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1892447889] [2023-08-26 23:40:53,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1892447889] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-26 23:40:53,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1169741702] [2023-08-26 23:40:53,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 23:40:53,154 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 23:40:53,154 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 23:40:53,155 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-26 23:40:53,157 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-08-26 23:40:53,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 23:40:53,319 INFO L262 TraceCheckSpWp]: Trace formula consists of 407 conjuncts, 48 conjunts are in the unsatisfiable core [2023-08-26 23:40:53,322 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-26 23:40:53,381 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-08-26 23:40:53,416 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-08-26 23:40:53,487 INFO L322 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2023-08-26 23:40:53,487 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2023-08-26 23:40:53,534 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2023-08-26 23:40:53,575 INFO L322 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2023-08-26 23:40:53,575 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2023-08-26 23:40:53,635 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2023-08-26 23:40:53,706 INFO L322 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2023-08-26 23:40:53,706 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 16 treesize of output 18 [2023-08-26 23:40:53,743 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2023-08-26 23:40:53,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 23:40:53,780 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2023-08-26 23:40:53,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 23:40:53,829 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2023-08-26 23:40:53,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 23:40:53,866 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2023-08-26 23:40:53,898 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-26 23:40:53,898 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-26 23:40:54,456 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-26 23:40:54,457 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 42 [2023-08-26 23:40:54,477 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-26 23:40:54,478 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 155905 treesize of output 154881 [2023-08-26 23:40:54,578 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1200 treesize of output 1104 [2023-08-26 23:40:54,605 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 549 treesize of output 537 [2023-08-26 23:40:54,630 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1092 treesize of output 900 [2023-08-26 23:40:54,657 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 441 treesize of output 435 [2023-08-26 23:40:54,688 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 435 treesize of output 411 [2023-08-26 23:40:54,715 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 458 treesize of output 410 [2023-08-26 23:40:55,542 INFO L209 tifierPushTermWalker]: Run 10 iterations without descend maybe there is a nontermination bug. [2023-08-26 23:40:56,054 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-26 23:40:56,055 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 12 select indices, 12 select index equivalence classes, 0 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 66 case distinctions, treesize of input 661 treesize of output 1158 [2023-08-26 23:41:30,679 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-26 23:41:30,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1169741702] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-26 23:41:30,679 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-26 23:41:30,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 12, 12] total 33 [2023-08-26 23:41:30,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311846537] [2023-08-26 23:41:30,679 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-26 23:41:30,679 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2023-08-26 23:41:30,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 23:41:30,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2023-08-26 23:41:30,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=249, Invalid=923, Unknown=18, NotChecked=0, Total=1190 [2023-08-26 23:41:30,685 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 474 out of 1416 [2023-08-26 23:41:30,691 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 112 transitions, 635 flow. Second operand has 35 states, 35 states have (on average 475.51428571428573) internal successors, (16643), 35 states have internal predecessors, (16643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:41:30,691 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 23:41:30,691 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 474 of 1416 [2023-08-26 23:41:30,691 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 23:41:33,181 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-26 23:41:37,990 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-26 23:41:39,994 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-26 23:41:45,316 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-26 23:41:54,401 INFO L124 PetriNetUnfolderBase]: 29521/42097 cut-off events. [2023-08-26 23:41:54,401 INFO L125 PetriNetUnfolderBase]: For 427/427 co-relation queries the response was YES. [2023-08-26 23:41:54,532 INFO L83 FinitePrefix]: Finished finitePrefix Result has 85828 conditions, 42097 events. 29521/42097 cut-off events. For 427/427 co-relation queries the response was YES. Maximal size of possible extension queue 1487. Compared 270597 event pairs, 15528 based on Foata normal form. 0/23341 useless extension candidates. Maximal degree in co-relation 85816. Up to 17898 conditions per place. [2023-08-26 23:41:54,635 INFO L140 encePairwiseOnDemand]: 1394/1416 looper letters, 234 selfloop transitions, 53 changer transitions 0/287 dead transitions. [2023-08-26 23:41:54,635 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 287 transitions, 1969 flow [2023-08-26 23:41:54,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-08-26 23:41:54,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2023-08-26 23:41:54,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 8248 transitions. [2023-08-26 23:41:54,644 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3426387504154204 [2023-08-26 23:41:54,644 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 8248 transitions. [2023-08-26 23:41:54,644 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 8248 transitions. [2023-08-26 23:41:54,645 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 23:41:54,645 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 8248 transitions. [2023-08-26 23:41:54,651 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 485.1764705882353) internal successors, (8248), 17 states have internal predecessors, (8248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:41:54,660 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 1416.0) internal successors, (25488), 18 states have internal predecessors, (25488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:41:54,661 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 1416.0) internal successors, (25488), 18 states have internal predecessors, (25488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:41:54,662 INFO L175 Difference]: Start difference. First operand has 96 places, 112 transitions, 635 flow. Second operand 17 states and 8248 transitions. [2023-08-26 23:41:54,662 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 287 transitions, 1969 flow [2023-08-26 23:41:54,664 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 287 transitions, 1925 flow, removed 9 selfloop flow, removed 2 redundant places. [2023-08-26 23:41:54,666 INFO L231 Difference]: Finished difference. Result has 120 places, 150 transitions, 1113 flow [2023-08-26 23:41:54,667 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1416, PETRI_DIFFERENCE_MINUEND_FLOW=618, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=1113, PETRI_PLACES=120, PETRI_TRANSITIONS=150} [2023-08-26 23:41:54,667 INFO L281 CegarLoopForPetriNet]: 84 programPoint places, 36 predicate places. [2023-08-26 23:41:54,667 INFO L495 AbstractCegarLoop]: Abstraction has has 120 places, 150 transitions, 1113 flow [2023-08-26 23:41:54,668 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 475.51428571428573) internal successors, (16643), 35 states have internal predecessors, (16643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:41:54,669 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 23:41:54,669 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 23:41:54,673 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-08-26 23:41:54,873 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 23:41:54,874 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-08-26 23:41:54,874 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 23:41:54,874 INFO L85 PathProgramCache]: Analyzing trace with hash 2072725664, now seen corresponding path program 1 times [2023-08-26 23:41:54,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 23:41:54,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [240936867] [2023-08-26 23:41:54,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 23:41:54,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 23:41:54,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 23:41:56,740 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-26 23:41:56,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 23:41:56,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [240936867] [2023-08-26 23:41:56,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [240936867] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-26 23:41:56,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [506988284] [2023-08-26 23:41:56,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 23:41:56,741 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 23:41:56,741 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 23:41:56,742 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-26 23:41:56,743 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-08-26 23:41:56,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 23:41:56,903 INFO L262 TraceCheckSpWp]: Trace formula consists of 412 conjuncts, 56 conjunts are in the unsatisfiable core [2023-08-26 23:41:56,905 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-26 23:41:57,120 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-08-26 23:41:57,259 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-08-26 23:41:57,521 INFO L322 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2023-08-26 23:41:57,521 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2023-08-26 23:41:57,702 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2023-08-26 23:41:57,965 INFO L322 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2023-08-26 23:41:57,965 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2023-08-26 23:41:58,229 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2023-08-26 23:41:58,540 INFO L322 Elim1Store]: treesize reduction 12, result has 52.0 percent of original size [2023-08-26 23:41:58,541 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 21 treesize of output 25 [2023-08-26 23:41:58,726 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2023-08-26 23:41:58,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 23:41:58,859 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2023-08-26 23:41:59,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 23:41:59,047 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2023-08-26 23:41:59,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 23:41:59,216 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2023-08-26 23:41:59,340 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-26 23:41:59,340 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-26 23:41:59,435 WARN L839 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_818 (Array Int Int))) (< 0 (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_818) c_~get_8~0.base) (+ (* c_~id_6~0 4) c_~get_8~0.offset)) 4294967296))) is different from false [2023-08-26 23:41:59,649 WARN L839 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_816 (Array Int Int)) (v_ArrVal_818 (Array Int Int)) (v_ArrVal_817 (Array Int Int))) (< 0 (+ (select (select (store (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_816) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_817) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_818) c_~get_8~0.base) (+ (* c_~id_6~0 4) c_~get_8~0.offset)) 4294967296))) is different from false [2023-08-26 23:42:00,854 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-26 23:42:00,854 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 43 treesize of output 44 [2023-08-26 23:42:00,928 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-26 23:42:00,930 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 1378307 treesize of output 1370115 [2023-08-26 23:42:01,040 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1328 treesize of output 1136 [2023-08-26 23:42:01,064 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 565 treesize of output 559 [2023-08-26 23:42:01,086 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 559 treesize of output 535 [2023-08-26 23:42:01,110 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 535 treesize of output 487 [2023-08-26 23:42:01,133 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 487 treesize of output 475 [2023-08-26 23:42:01,157 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 570 treesize of output 474 [2023-08-26 23:42:02,557 INFO L209 tifierPushTermWalker]: Run 10 iterations without descend maybe there is a nontermination bug. [2023-08-26 23:42:04,346 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-26 23:42:04,347 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 12 select indices, 12 select index equivalence classes, 0 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 66 case distinctions, treesize of input 164 treesize of output 669 [2023-08-26 23:43:12,352 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 1 not checked. [2023-08-26 23:43:12,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [506988284] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-26 23:43:12,353 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-26 23:43:12,353 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 12, 12] total 34 [2023-08-26 23:43:12,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289950984] [2023-08-26 23:43:12,353 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-26 23:43:12,353 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-08-26 23:43:12,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 23:43:12,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-08-26 23:43:12,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=223, Invalid=892, Unknown=15, NotChecked=130, Total=1260 [2023-08-26 23:43:12,359 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 448 out of 1416 [2023-08-26 23:43:12,364 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 150 transitions, 1113 flow. Second operand has 36 states, 36 states have (on average 449.5833333333333) internal successors, (16185), 36 states have internal predecessors, (16185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:43:12,364 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 23:43:12,364 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 448 of 1416 [2023-08-26 23:43:12,364 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 23:43:18,163 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-26 23:43:30,028 INFO L124 PetriNetUnfolderBase]: 32572/46426 cut-off events. [2023-08-26 23:43:30,029 INFO L125 PetriNetUnfolderBase]: For 11189/11189 co-relation queries the response was YES. [2023-08-26 23:43:30,203 INFO L83 FinitePrefix]: Finished finitePrefix Result has 115658 conditions, 46426 events. 32572/46426 cut-off events. For 11189/11189 co-relation queries the response was YES. Maximal size of possible extension queue 1610. Compared 299426 event pairs, 14682 based on Foata normal form. 0/30628 useless extension candidates. Maximal degree in co-relation 115636. Up to 19632 conditions per place. [2023-08-26 23:43:30,312 INFO L140 encePairwiseOnDemand]: 1381/1416 looper letters, 205 selfloop transitions, 101 changer transitions 0/306 dead transitions. [2023-08-26 23:43:30,312 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 306 transitions, 2383 flow [2023-08-26 23:43:30,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-08-26 23:43:30,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2023-08-26 23:43:30,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 9153 transitions. [2023-08-26 23:43:30,319 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.32319915254237286 [2023-08-26 23:43:30,319 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 9153 transitions. [2023-08-26 23:43:30,319 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 9153 transitions. [2023-08-26 23:43:30,320 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 23:43:30,320 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 9153 transitions. [2023-08-26 23:43:30,334 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 457.65) internal successors, (9153), 20 states have internal predecessors, (9153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:43:30,345 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 1416.0) internal successors, (29736), 21 states have internal predecessors, (29736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:43:30,346 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 1416.0) internal successors, (29736), 21 states have internal predecessors, (29736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:43:30,346 INFO L175 Difference]: Start difference. First operand has 120 places, 150 transitions, 1113 flow. Second operand 20 states and 9153 transitions. [2023-08-26 23:43:30,346 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 306 transitions, 2383 flow [2023-08-26 23:43:30,370 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 306 transitions, 2363 flow, removed 6 selfloop flow, removed 2 redundant places. [2023-08-26 23:43:30,373 INFO L231 Difference]: Finished difference. Result has 146 places, 210 transitions, 1872 flow [2023-08-26 23:43:30,374 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1416, PETRI_DIFFERENCE_MINUEND_FLOW=1093, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=150, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=42, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=1872, PETRI_PLACES=146, PETRI_TRANSITIONS=210} [2023-08-26 23:43:30,374 INFO L281 CegarLoopForPetriNet]: 84 programPoint places, 62 predicate places. [2023-08-26 23:43:30,374 INFO L495 AbstractCegarLoop]: Abstraction has has 146 places, 210 transitions, 1872 flow [2023-08-26 23:43:30,376 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 449.5833333333333) internal successors, (16185), 36 states have internal predecessors, (16185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:43:30,376 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 23:43:30,376 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 23:43:30,381 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-08-26 23:43:30,580 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 23:43:30,580 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-08-26 23:43:30,581 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 23:43:30,581 INFO L85 PathProgramCache]: Analyzing trace with hash 2072725682, now seen corresponding path program 1 times [2023-08-26 23:43:30,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 23:43:30,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [959182520] [2023-08-26 23:43:30,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 23:43:30,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 23:43:30,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 23:43:32,333 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-26 23:43:32,333 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 23:43:32,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [959182520] [2023-08-26 23:43:32,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [959182520] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-26 23:43:32,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [95113839] [2023-08-26 23:43:32,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 23:43:32,333 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 23:43:32,333 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 23:43:32,335 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-26 23:43:32,336 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-08-26 23:43:32,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 23:43:32,492 INFO L262 TraceCheckSpWp]: Trace formula consists of 410 conjuncts, 59 conjunts are in the unsatisfiable core [2023-08-26 23:43:32,495 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-26 23:43:32,694 INFO L322 Elim1Store]: treesize reduction 76, result has 30.3 percent of original size [2023-08-26 23:43:32,695 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 15 treesize of output 38 [2023-08-26 23:43:32,914 INFO L322 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2023-08-26 23:43:32,914 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2023-08-26 23:43:33,108 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-08-26 23:43:33,389 INFO L322 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2023-08-26 23:43:33,389 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2023-08-26 23:43:33,609 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2023-08-26 23:43:33,873 INFO L322 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2023-08-26 23:43:33,874 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2023-08-26 23:43:34,052 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2023-08-26 23:43:34,228 INFO L322 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2023-08-26 23:43:34,229 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2023-08-26 23:43:34,323 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2023-08-26 23:43:34,418 INFO L322 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2023-08-26 23:43:34,418 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 16 treesize of output 18 [2023-08-26 23:43:34,599 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2023-08-26 23:43:34,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 23:43:34,745 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2023-08-26 23:43:34,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 23:43:34,939 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2023-08-26 23:43:35,078 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2023-08-26 23:43:35,212 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-26 23:43:35,212 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-26 23:43:35,352 WARN L839 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_919 (Array Int Int))) (< (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_919) c_~get_5~0.base) (+ (* c_~id_3~0 4) c_~get_5~0.offset)) 2147483648)) is different from false [2023-08-26 23:43:37,611 WARN L839 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_917 (Array Int Int)) (v_ArrVal_919 (Array Int Int)) (v_ArrVal_918 (Array Int Int))) (< (select (select (store (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_917) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_918) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_919) c_~get_5~0.base) (+ (* c_~id_3~0 4) c_~get_5~0.offset)) 2147483648)) is different from false [2023-08-26 23:43:45,004 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-26 23:43:45,004 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 39 [2023-08-26 23:43:45,034 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-26 23:43:45,034 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 9761 treesize of output 9633 [2023-08-26 23:43:45,065 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 592 treesize of output 544 [2023-08-26 23:43:45,080 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 544 treesize of output 448 [2023-08-26 23:43:45,097 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 221 treesize of output 215 [2023-08-26 23:43:45,111 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 442 treesize of output 418 [2023-08-26 23:43:45,128 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 214 treesize of output 202 [2023-08-26 23:43:45,940 INFO L209 tifierPushTermWalker]: Run 10 iterations without descend maybe there is a nontermination bug. [2023-08-26 23:43:46,851 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 1 not checked. [2023-08-26 23:43:46,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [95113839] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-26 23:43:46,851 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-26 23:43:46,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 12] total 34 [2023-08-26 23:43:46,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547346818] [2023-08-26 23:43:46,851 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-26 23:43:46,851 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-08-26 23:43:46,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 23:43:46,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-08-26 23:43:46,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=206, Invalid=902, Unknown=22, NotChecked=130, Total=1260 [2023-08-26 23:43:46,857 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 474 out of 1416 [2023-08-26 23:43:46,862 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 210 transitions, 1872 flow. Second operand has 36 states, 36 states have (on average 475.5833333333333) internal successors, (17121), 36 states have internal predecessors, (17121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:43:46,862 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 23:43:46,862 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 474 of 1416 [2023-08-26 23:43:46,862 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 23:43:51,124 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-26 23:43:53,143 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-26 23:43:54,810 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-26 23:43:58,446 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-26 23:44:01,064 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-26 23:44:04,017 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-26 23:44:06,054 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-26 23:44:08,800 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-26 23:44:12,870 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-26 23:44:14,126 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-26 23:44:16,526 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-26 23:44:20,717 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-26 23:44:22,010 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-26 23:44:25,437 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-26 23:44:38,019 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-26 23:44:40,101 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-26 23:44:42,058 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-26 23:44:44,081 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-26 23:44:46,091 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-26 23:44:48,097 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-26 23:44:50,194 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-26 23:44:52,228 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-26 23:44:54,262 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-26 23:44:56,274 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-26 23:44:58,276 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-26 23:45:00,288 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-26 23:45:02,401 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-26 23:45:04,432 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-26 23:45:06,490 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-26 23:45:08,633 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-26 23:45:24,683 INFO L124 PetriNetUnfolderBase]: 76089/109888 cut-off events. [2023-08-26 23:45:24,683 INFO L125 PetriNetUnfolderBase]: For 173307/173307 co-relation queries the response was YES. [2023-08-26 23:45:25,366 INFO L83 FinitePrefix]: Finished finitePrefix Result has 388667 conditions, 109888 events. 76089/109888 cut-off events. For 173307/173307 co-relation queries the response was YES. Maximal size of possible extension queue 3733. Compared 801062 event pairs, 34069 based on Foata normal form. 0/81949 useless extension candidates. Maximal degree in co-relation 388636. Up to 38885 conditions per place. [2023-08-26 23:45:25,706 INFO L140 encePairwiseOnDemand]: 1386/1416 looper letters, 427 selfloop transitions, 192 changer transitions 0/619 dead transitions. [2023-08-26 23:45:25,706 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 165 places, 619 transitions, 6665 flow [2023-08-26 23:45:25,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-08-26 23:45:25,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2023-08-26 23:45:25,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 9679 transitions. [2023-08-26 23:45:25,712 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3417725988700565 [2023-08-26 23:45:25,712 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 9679 transitions. [2023-08-26 23:45:25,712 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 9679 transitions. [2023-08-26 23:45:25,713 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 23:45:25,713 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 9679 transitions. [2023-08-26 23:45:25,719 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 483.95) internal successors, (9679), 20 states have internal predecessors, (9679), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:45:25,729 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 1416.0) internal successors, (29736), 21 states have internal predecessors, (29736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:45:25,731 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 1416.0) internal successors, (29736), 21 states have internal predecessors, (29736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:45:25,731 INFO L175 Difference]: Start difference. First operand has 146 places, 210 transitions, 1872 flow. Second operand 20 states and 9679 transitions. [2023-08-26 23:45:25,731 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 165 places, 619 transitions, 6665 flow [2023-08-26 23:45:26,389 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 155 places, 619 transitions, 6408 flow, removed 47 selfloop flow, removed 10 redundant places. [2023-08-26 23:45:26,394 INFO L231 Difference]: Finished difference. Result has 166 places, 391 transitions, 4463 flow [2023-08-26 23:45:26,394 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1416, PETRI_DIFFERENCE_MINUEND_FLOW=1781, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=210, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=4463, PETRI_PLACES=166, PETRI_TRANSITIONS=391} [2023-08-26 23:45:26,394 INFO L281 CegarLoopForPetriNet]: 84 programPoint places, 82 predicate places. [2023-08-26 23:45:26,395 INFO L495 AbstractCegarLoop]: Abstraction has has 166 places, 391 transitions, 4463 flow [2023-08-26 23:45:26,396 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 475.5833333333333) internal successors, (17121), 36 states have internal predecessors, (17121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:45:26,396 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 23:45:26,396 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 23:45:26,401 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-08-26 23:45:26,601 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2023-08-26 23:45:26,601 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-08-26 23:45:26,601 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 23:45:26,601 INFO L85 PathProgramCache]: Analyzing trace with hash 2072725683, now seen corresponding path program 1 times [2023-08-26 23:45:26,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 23:45:26,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6095257] [2023-08-26 23:45:26,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 23:45:26,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 23:45:26,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 23:45:29,336 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-26 23:45:29,336 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 23:45:29,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6095257] [2023-08-26 23:45:29,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [6095257] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-26 23:45:29,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [835836613] [2023-08-26 23:45:29,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 23:45:29,336 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 23:45:29,336 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 23:45:29,337 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-26 23:45:29,338 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-08-26 23:45:29,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 23:45:29,504 INFO L262 TraceCheckSpWp]: Trace formula consists of 410 conjuncts, 59 conjunts are in the unsatisfiable core [2023-08-26 23:45:29,507 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-26 23:45:29,769 INFO L322 Elim1Store]: treesize reduction 76, result has 30.3 percent of original size [2023-08-26 23:45:29,769 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 15 treesize of output 38 [2023-08-26 23:45:30,114 INFO L322 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2023-08-26 23:45:30,114 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2023-08-26 23:45:30,339 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-08-26 23:45:30,742 INFO L322 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2023-08-26 23:45:30,742 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2023-08-26 23:45:31,018 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2023-08-26 23:45:31,358 INFO L322 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2023-08-26 23:45:31,358 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2023-08-26 23:45:31,654 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2023-08-26 23:45:31,882 INFO L322 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2023-08-26 23:45:31,882 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2023-08-26 23:45:32,149 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2023-08-26 23:45:32,531 INFO L322 Elim1Store]: treesize reduction 12, result has 52.0 percent of original size [2023-08-26 23:45:32,531 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 21 treesize of output 25 [2023-08-26 23:45:32,767 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2023-08-26 23:45:32,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 23:45:32,990 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2023-08-26 23:45:33,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 23:45:33,207 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2023-08-26 23:45:33,351 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2023-08-26 23:45:33,415 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-26 23:45:33,415 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-26 23:45:33,539 WARN L839 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1020 (Array Int Int))) (< 0 (+ 2147483649 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_1020) c_~get_5~0.base) (+ (* c_~id_3~0 4) c_~get_5~0.offset))))) is different from false [2023-08-26 23:45:34,073 WARN L839 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1019 (Array Int Int)) (v_ArrVal_1018 (Array Int Int)) (v_ArrVal_1017 (Array Int Int)) (v_ArrVal_1020 (Array Int Int))) (< 0 (+ (select (select (store (store (store (store |c_#memory_int| |c_ULTIMATE.start_create_fresh_bool_array_~arr~1#1.base| v_ArrVal_1017) |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_1018) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_1019) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_1020) c_~get_5~0.base) (+ (* c_~id_3~0 4) c_~get_5~0.offset)) 2147483649))) is different from false [2023-08-26 23:45:38,075 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-26 23:45:38,076 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 43 treesize of output 44 [2023-08-26 23:45:38,136 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-26 23:45:38,137 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 1378307 treesize of output 1370115 [2023-08-26 23:45:38,252 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 661 treesize of output 649 [2023-08-26 23:45:38,388 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 649 treesize of output 643 [2023-08-26 23:45:38,418 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1310 treesize of output 1118 [2023-08-26 23:45:38,448 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1118 treesize of output 1022 [2023-08-26 23:45:38,478 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1022 treesize of output 974 [2023-08-26 23:45:38,510 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 498 treesize of output 474 [2023-08-26 23:45:40,410 INFO L209 tifierPushTermWalker]: Run 10 iterations without descend maybe there is a nontermination bug. [2023-08-26 23:45:41,910 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 1 not checked. [2023-08-26 23:45:41,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [835836613] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-26 23:45:41,910 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-26 23:45:41,911 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 37 [2023-08-26 23:45:41,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426213827] [2023-08-26 23:45:41,911 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-26 23:45:41,911 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2023-08-26 23:45:41,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 23:45:41,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2023-08-26 23:45:41,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=273, Invalid=1052, Unknown=15, NotChecked=142, Total=1482 [2023-08-26 23:45:41,919 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 474 out of 1416 [2023-08-26 23:45:41,927 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 166 places, 391 transitions, 4463 flow. Second operand has 39 states, 39 states have (on average 475.35897435897436) internal successors, (18539), 39 states have internal predecessors, (18539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:45:41,927 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 23:45:41,927 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 474 of 1416 [2023-08-26 23:45:41,927 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 23:45:47,033 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-08-26 23:45:55,258 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-26 23:45:56,433 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-26 23:46:11,554 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-26 23:46:15,497 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-26 23:46:17,518 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-26 23:46:19,528 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-26 23:46:21,530 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-26 23:46:23,547 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-26 23:46:26,732 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-26 23:46:28,757 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-26 23:46:30,764 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-26 23:46:32,773 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-26 23:46:52,657 INFO L124 PetriNetUnfolderBase]: 73458/109312 cut-off events. [2023-08-26 23:46:52,657 INFO L125 PetriNetUnfolderBase]: For 462785/462785 co-relation queries the response was YES. [2023-08-26 23:46:53,528 INFO L83 FinitePrefix]: Finished finitePrefix Result has 463921 conditions, 109312 events. 73458/109312 cut-off events. For 462785/462785 co-relation queries the response was YES. Maximal size of possible extension queue 3924. Compared 847317 event pairs, 33159 based on Foata normal form. 5052/94153 useless extension candidates. Maximal degree in co-relation 463879. Up to 45272 conditions per place. [2023-08-26 23:46:54,053 INFO L140 encePairwiseOnDemand]: 1386/1416 looper letters, 484 selfloop transitions, 197 changer transitions 0/681 dead transitions. [2023-08-26 23:46:54,054 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 188 places, 681 transitions, 8584 flow [2023-08-26 23:46:54,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-08-26 23:46:54,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2023-08-26 23:46:54,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 11121 transitions. [2023-08-26 23:46:54,060 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3414701547531319 [2023-08-26 23:46:54,060 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 11121 transitions. [2023-08-26 23:46:54,060 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 11121 transitions. [2023-08-26 23:46:54,062 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 23:46:54,062 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 11121 transitions. [2023-08-26 23:46:54,067 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 24 states, 23 states have (on average 483.5217391304348) internal successors, (11121), 23 states have internal predecessors, (11121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:46:54,080 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 24 states, 24 states have (on average 1416.0) internal successors, (33984), 24 states have internal predecessors, (33984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:46:54,081 INFO L81 ComplementDD]: Finished complementDD. Result has 24 states, 24 states have (on average 1416.0) internal successors, (33984), 24 states have internal predecessors, (33984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:46:54,082 INFO L175 Difference]: Start difference. First operand has 166 places, 391 transitions, 4463 flow. Second operand 23 states and 11121 transitions. [2023-08-26 23:46:54,082 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 188 places, 681 transitions, 8584 flow [2023-08-26 23:46:54,596 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 184 places, 681 transitions, 8531 flow, removed 9 selfloop flow, removed 4 redundant places. [2023-08-26 23:46:54,602 INFO L231 Difference]: Finished difference. Result has 191 places, 422 transitions, 5526 flow [2023-08-26 23:46:54,602 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1416, PETRI_DIFFERENCE_MINUEND_FLOW=4339, PETRI_DIFFERENCE_MINUEND_PLACES=162, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=383, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=162, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=191, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=5526, PETRI_PLACES=191, PETRI_TRANSITIONS=422} [2023-08-26 23:46:54,603 INFO L281 CegarLoopForPetriNet]: 84 programPoint places, 107 predicate places. [2023-08-26 23:46:54,603 INFO L495 AbstractCegarLoop]: Abstraction has has 191 places, 422 transitions, 5526 flow [2023-08-26 23:46:54,604 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 39 states have (on average 475.35897435897436) internal successors, (18539), 39 states have internal predecessors, (18539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:46:54,604 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 23:46:54,604 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 23:46:54,609 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-08-26 23:46:54,805 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2023-08-26 23:46:54,805 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-08-26 23:46:54,806 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 23:46:54,806 INFO L85 PathProgramCache]: Analyzing trace with hash 1875935545, now seen corresponding path program 1 times [2023-08-26 23:46:54,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 23:46:54,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396134467] [2023-08-26 23:46:54,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 23:46:54,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 23:46:54,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 23:46:56,849 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 23:46:56,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 23:46:56,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396134467] [2023-08-26 23:46:56,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1396134467] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-26 23:46:56,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2005525451] [2023-08-26 23:46:56,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 23:46:56,850 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 23:46:56,850 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 23:46:56,851 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-26 23:46:56,854 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-08-26 23:46:57,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 23:46:57,011 INFO L262 TraceCheckSpWp]: Trace formula consists of 390 conjuncts, 57 conjunts are in the unsatisfiable core [2023-08-26 23:46:57,014 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-26 23:46:57,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 23:46:57,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 23:46:57,227 INFO L322 Elim1Store]: treesize reduction 43, result has 41.9 percent of original size [2023-08-26 23:46:57,227 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 15 treesize of output 36 [2023-08-26 23:46:57,443 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-08-26 23:46:57,703 INFO L322 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2023-08-26 23:46:57,704 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2023-08-26 23:46:57,901 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2023-08-26 23:46:58,077 INFO L322 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2023-08-26 23:46:58,077 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2023-08-26 23:46:58,291 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2023-08-26 23:46:58,714 INFO L322 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2023-08-26 23:46:58,714 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2023-08-26 23:46:58,974 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2023-08-26 23:46:59,168 INFO L322 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2023-08-26 23:46:59,169 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2023-08-26 23:46:59,292 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2023-08-26 23:46:59,482 INFO L322 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2023-08-26 23:46:59,482 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 16 treesize of output 18 [2023-08-26 23:46:59,689 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2023-08-26 23:46:59,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 23:46:59,854 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2023-08-26 23:47:00,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 23:47:00,300 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2023-08-26 23:47:00,609 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-26 23:47:00,609 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-26 23:47:01,155 WARN L839 $PredicateComparison]: unable to prove that (let ((.cse1 (+ (* c_~id_0~0 4) c_~get_2~0.offset))) (and (forall ((v_ArrVal_1117 (Array Int Int)) (~get_5~0.offset Int) (~id_3~0 Int)) (let ((.cse0 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_1117))) (let ((.cse2 (select (select .cse0 c_~get_5~0.base) (+ (* ~id_3~0 4) ~get_5~0.offset)))) (or (< (select (select .cse0 c_~get_2~0.base) .cse1) (+ .cse2 2147483648)) (< 9223372039002259455 .cse2) (<= .cse2 0))))) (forall ((v_ArrVal_1117 (Array Int Int)) (~get_5~0.offset Int) (~id_3~0 Int)) (let ((.cse3 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_1117))) (let ((.cse4 (select (select .cse3 c_~get_5~0.base) (+ (* ~id_3~0 4) ~get_5~0.offset)))) (or (< (select (select .cse3 c_~get_2~0.base) .cse1) (+ .cse4 2147483648)) (< .cse4 0) (< 0 .cse4))))))) is different from false [2023-08-26 23:47:01,845 WARN L839 $PredicateComparison]: unable to prove that (let ((.cse1 (+ (* c_~id_0~0 4) c_~get_2~0.offset))) (and (forall ((v_ArrVal_1117 (Array Int Int)) (v_ArrVal_1116 (Array Int Int)) (v_ArrVal_1115 (Array Int Int)) (~get_5~0.offset Int) (~id_3~0 Int)) (let ((.cse0 (store (store (store |c_#memory_int| |c_ULTIMATE.start_create_fresh_bool_array_~arr~1#1.base| v_ArrVal_1115) |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_1116) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_1117))) (let ((.cse2 (select (select .cse0 c_~get_5~0.base) (+ (* ~id_3~0 4) ~get_5~0.offset)))) (or (< (select (select .cse0 c_~get_2~0.base) .cse1) (+ .cse2 2147483648)) (< 0 .cse2) (< .cse2 0))))) (forall ((v_ArrVal_1117 (Array Int Int)) (v_ArrVal_1116 (Array Int Int)) (v_ArrVal_1115 (Array Int Int)) (~get_5~0.offset Int) (~id_3~0 Int)) (let ((.cse3 (store (store (store |c_#memory_int| |c_ULTIMATE.start_create_fresh_bool_array_~arr~1#1.base| v_ArrVal_1115) |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_1116) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_1117))) (let ((.cse4 (select (select .cse3 c_~get_5~0.base) (+ (* ~id_3~0 4) ~get_5~0.offset)))) (or (< (select (select .cse3 c_~get_2~0.base) .cse1) (+ .cse4 2147483648)) (< 9223372039002259455 .cse4) (<= .cse4 0))))))) is different from false [2023-08-26 23:48:07,868 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-26 23:48:07,868 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 473 treesize of output 390 [2023-08-26 23:48:08,471 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-26 23:48:08,494 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 3682670661 treesize of output 3674150981 [2023-08-26 23:48:55,534 WARN L234 SmtUtils]: Spent 47.00s on a formula simplification. DAG size of input: 19949 DAG size of output: 1683 (called from [L 729] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-08-26 23:48:55,642 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-26 23:48:55,644 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 446521 treesize of output 421770 [2023-08-26 23:49:00,460 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-26 23:49:00,462 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 421753 treesize of output 420606 [2023-08-26 23:49:05,273 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-26 23:49:05,275 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 420589 treesize of output 414414 [2023-08-26 23:49:10,142 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-26 23:49:10,144 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 414397 treesize of output 412866 [2023-08-26 23:49:15,003 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-26 23:49:15,005 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 412849 treesize of output 409770 [2023-08-26 23:49:19,930 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-26 23:49:19,931 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 409753 treesize of output 397386 [2023-08-26 23:49:24,849 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-26 23:49:24,850 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 397369 treesize of output 347850 [2023-08-26 23:49:29,704 INFO L209 tifierPushTermWalker]: Run 10 iterations without descend maybe there is a nontermination bug. [2023-08-26 23:49:29,801 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-26 23:49:29,803 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 347833 treesize of output 344754 [2023-08-26 23:49:34,818 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-26 23:49:34,820 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 344737 treesize of output 319986 [2023-08-26 23:49:39,839 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-26 23:49:39,841 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 319969 treesize of output 318822 [2023-08-26 23:49:44,921 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-26 23:49:44,922 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 318805 treesize of output 312630 [2023-08-26 23:49:49,955 WARN L234 SmtUtils]: Spent 5.03s on a formula simplification that was a NOOP. DAG size: 1707 (called from [L 729] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-08-26 23:49:50,058 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-26 23:49:50,060 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 312613 treesize of output 300246 [2023-08-26 23:49:55,101 WARN L234 SmtUtils]: Spent 5.04s on a formula simplification that was a NOOP. DAG size: 1709 (called from [L 729] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-08-26 23:49:55,206 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-26 23:49:55,208 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 300229 treesize of output 298698 [2023-08-26 23:50:00,294 WARN L234 SmtUtils]: Spent 5.08s on a formula simplification that was a NOOP. DAG size: 1711 (called from [L 729] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-08-26 23:50:00,398 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-26 23:50:00,399 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 298681 treesize of output 249162 [2023-08-26 23:50:05,433 WARN L234 SmtUtils]: Spent 5.03s on a formula simplification that was a NOOP. DAG size: 1713 (called from [L 729] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-08-26 23:50:20,131 WARN L234 SmtUtils]: Spent 5.39s on a formula simplification. DAG size of input: 694 DAG size of output: 694 (called from [L 729] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-08-26 23:50:34,563 WARN L234 SmtUtils]: Spent 6.39s on a formula simplification. DAG size of input: 693 DAG size of output: 697 (called from [L 729] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) Received shutdown request... [2023-08-26 23:54:00,089 WARN L266 SmtUtils]: Removed 1 from assertion stack [2023-08-26 23:54:00,096 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (63 of 64 remaining) [2023-08-26 23:54:00,100 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-08-26 23:54:00,101 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-08-26 23:54:00,102 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-08-26 23:54:00,301 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2023-08-26 23:54:00,302 WARN L619 AbstractCegarLoop]: Verification canceled: while CegarLoopForPetriNet was analyzing trace of length 22 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-42-3-7-2-2-2-2-2-2-2-2-2-2-2-2-2-2-1 context. [2023-08-26 23:54:00,303 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (62 of 64 remaining) [2023-08-26 23:54:00,303 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (61 of 64 remaining) [2023-08-26 23:54:00,303 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (60 of 64 remaining) [2023-08-26 23:54:00,303 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (59 of 64 remaining) [2023-08-26 23:54:00,305 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (58 of 64 remaining) [2023-08-26 23:54:00,305 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (57 of 64 remaining) [2023-08-26 23:54:00,306 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (56 of 64 remaining) [2023-08-26 23:54:00,306 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (55 of 64 remaining) [2023-08-26 23:54:00,306 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (54 of 64 remaining) [2023-08-26 23:54:00,306 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (53 of 64 remaining) [2023-08-26 23:54:00,306 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (52 of 64 remaining) [2023-08-26 23:54:00,306 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (51 of 64 remaining) [2023-08-26 23:54:00,306 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (50 of 64 remaining) [2023-08-26 23:54:00,307 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (49 of 64 remaining) [2023-08-26 23:54:00,307 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (48 of 64 remaining) [2023-08-26 23:54:00,307 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (47 of 64 remaining) [2023-08-26 23:54:00,307 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (46 of 64 remaining) [2023-08-26 23:54:00,307 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (45 of 64 remaining) [2023-08-26 23:54:00,307 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (44 of 64 remaining) [2023-08-26 23:54:00,307 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (43 of 64 remaining) [2023-08-26 23:54:00,307 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (42 of 64 remaining) [2023-08-26 23:54:00,308 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (41 of 64 remaining) [2023-08-26 23:54:00,308 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (40 of 64 remaining) [2023-08-26 23:54:00,308 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (39 of 64 remaining) [2023-08-26 23:54:00,308 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (38 of 64 remaining) [2023-08-26 23:54:00,308 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (37 of 64 remaining) [2023-08-26 23:54:00,308 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (36 of 64 remaining) [2023-08-26 23:54:00,308 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (35 of 64 remaining) [2023-08-26 23:54:00,309 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (34 of 64 remaining) [2023-08-26 23:54:00,309 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (33 of 64 remaining) [2023-08-26 23:54:00,309 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (32 of 64 remaining) [2023-08-26 23:54:00,309 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (31 of 64 remaining) [2023-08-26 23:54:00,309 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (30 of 64 remaining) [2023-08-26 23:54:00,309 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 64 remaining) [2023-08-26 23:54:00,309 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 64 remaining) [2023-08-26 23:54:00,309 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 64 remaining) [2023-08-26 23:54:00,309 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 64 remaining) [2023-08-26 23:54:00,309 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 64 remaining) [2023-08-26 23:54:00,310 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 64 remaining) [2023-08-26 23:54:00,310 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 64 remaining) [2023-08-26 23:54:00,310 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 64 remaining) [2023-08-26 23:54:00,310 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 64 remaining) [2023-08-26 23:54:00,310 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr24ASSERT_VIOLATIONASSERT (20 of 64 remaining) [2023-08-26 23:54:00,310 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (19 of 64 remaining) [2023-08-26 23:54:00,310 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (18 of 64 remaining) [2023-08-26 23:54:00,310 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (17 of 64 remaining) [2023-08-26 23:54:00,310 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 64 remaining) [2023-08-26 23:54:00,310 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 64 remaining) [2023-08-26 23:54:00,311 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 64 remaining) [2023-08-26 23:54:00,311 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 64 remaining) [2023-08-26 23:54:00,311 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 64 remaining) [2023-08-26 23:54:00,311 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 64 remaining) [2023-08-26 23:54:00,311 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 64 remaining) [2023-08-26 23:54:00,311 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 64 remaining) [2023-08-26 23:54:00,311 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 64 remaining) [2023-08-26 23:54:00,312 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 64 remaining) [2023-08-26 23:54:00,312 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 64 remaining) [2023-08-26 23:54:00,312 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 64 remaining) [2023-08-26 23:54:00,312 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 64 remaining) [2023-08-26 23:54:00,312 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 64 remaining) [2023-08-26 23:54:00,312 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 64 remaining) [2023-08-26 23:54:00,312 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 64 remaining) [2023-08-26 23:54:00,312 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 64 remaining) [2023-08-26 23:54:00,313 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 23:54:00,318 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-26 23:54:00,318 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-26 23:54:00,321 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.08 11:54:00 BasicIcfg [2023-08-26 23:54:00,321 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-26 23:54:00,321 INFO L158 Benchmark]: Toolchain (without parser) took 836578.06ms. Allocated memory was 362.8MB in the beginning and 10.0GB in the end (delta: 9.6GB). Free memory was 338.3MB in the beginning and 6.4GB in the end (delta: -6.0GB). Peak memory consumption was 8.7GB. Max. memory is 16.0GB. [2023-08-26 23:54:00,322 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 362.8MB. Free memory is still 339.2MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-26 23:54:00,322 INFO L158 Benchmark]: CACSL2BoogieTranslator took 187.40ms. Allocated memory is still 362.8MB. Free memory was 338.3MB in the beginning and 325.1MB in the end (delta: 13.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. [2023-08-26 23:54:00,322 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.58ms. Allocated memory is still 362.8MB. Free memory was 325.1MB in the beginning and 321.9MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-26 23:54:00,322 INFO L158 Benchmark]: Boogie Preprocessor took 26.25ms. Allocated memory is still 362.8MB. Free memory was 321.9MB in the beginning and 318.8MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. [2023-08-26 23:54:00,322 INFO L158 Benchmark]: RCFGBuilder took 715.18ms. Allocated memory is still 362.8MB. Free memory was 318.8MB in the beginning and 330.4MB in the end (delta: -11.6MB). Peak memory consumption was 36.2MB. Max. memory is 16.0GB. [2023-08-26 23:54:00,322 INFO L158 Benchmark]: TraceAbstraction took 835611.75ms. Allocated memory was 362.8MB in the beginning and 10.0GB in the end (delta: 9.6GB). Free memory was 329.4MB in the beginning and 6.4GB in the end (delta: -6.0GB). Peak memory consumption was 8.7GB. Max. memory is 16.0GB. [2023-08-26 23:54:00,323 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 362.8MB. Free memory is still 339.2MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 187.40ms. Allocated memory is still 362.8MB. Free memory was 338.3MB in the beginning and 325.1MB in the end (delta: 13.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 32.58ms. Allocated memory is still 362.8MB. Free memory was 325.1MB in the beginning and 321.9MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 26.25ms. Allocated memory is still 362.8MB. Free memory was 321.9MB in the beginning and 318.8MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. * RCFGBuilder took 715.18ms. Allocated memory is still 362.8MB. Free memory was 318.8MB in the beginning and 330.4MB in the end (delta: -11.6MB). Peak memory consumption was 36.2MB. Max. memory is 16.0GB. * TraceAbstraction took 835611.75ms. Allocated memory was 362.8MB in the beginning and 10.0GB in the end (delta: 9.6GB). Free memory was 329.4MB in the beginning and 6.4GB in the end (delta: -6.0GB). Peak memory consumption was 8.7GB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 23.7s, 572 PlacesBefore, 84 PlacesAfterwards, 609 TransitionsBefore, 83 TransitionsAfterwards, 34440 CoEnabledTransitionPairs, 11 FixpointIterations, 381 TrivialSequentialCompositions, 250 ConcurrentSequentialCompositions, 74 TrivialYvCompositions, 50 ConcurrentYvCompositions, 38 ChoiceCompositions, 793 TotalNumberOfCompositions, 46663 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 37582, independent: 37198, independent conditional: 0, independent unconditional: 37198, dependent: 384, dependent conditional: 0, dependent unconditional: 384, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 20238, independent: 20175, independent conditional: 0, independent unconditional: 20175, dependent: 63, dependent conditional: 0, dependent unconditional: 63, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 37582, independent: 17023, independent conditional: 0, independent unconditional: 17023, dependent: 321, dependent conditional: 0, dependent unconditional: 321, unknown: 20238, unknown conditional: 0, unknown unconditional: 20238] , Statistics on independence cache: Total cache size (in pairs): 426, Positive cache size: 403, Positive conditional cache size: 0, Positive unconditional cache size: 403, Negative cache size: 23, Negative conditional cache size: 0, Negative unconditional cache size: 23, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - TimeoutResultAtElement [Line: 139]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 22 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-42-3-7-2-2-2-2-2-2-2-2-2-2-2-2-2-2-1 context. - TimeoutResultAtElement [Line: 137]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 22 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-42-3-7-2-2-2-2-2-2-2-2-2-2-2-2-2-2-1 context. - TimeoutResultAtElement [Line: 137]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 22 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-42-3-7-2-2-2-2-2-2-2-2-2-2-2-2-2-2-1 context. - TimeoutResultAtElement [Line: 138]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 22 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-42-3-7-2-2-2-2-2-2-2-2-2-2-2-2-2-2-1 context. - TimeoutResultAtElement [Line: 138]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 22 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-42-3-7-2-2-2-2-2-2-2-2-2-2-2-2-2-2-1 context. - TimeoutResultAtElement [Line: 139]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 22 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-42-3-7-2-2-2-2-2-2-2-2-2-2-2-2-2-2-1 context. - TimeoutResultAtElement [Line: 137]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 22 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-42-3-7-2-2-2-2-2-2-2-2-2-2-2-2-2-2-1 context. - TimeoutResultAtElement [Line: 137]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 22 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-42-3-7-2-2-2-2-2-2-2-2-2-2-2-2-2-2-1 context. - TimeoutResultAtElement [Line: 138]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 22 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-42-3-7-2-2-2-2-2-2-2-2-2-2-2-2-2-2-1 context. - TimeoutResultAtElement [Line: 138]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 22 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-42-3-7-2-2-2-2-2-2-2-2-2-2-2-2-2-2-1 context. - TimeoutResultAtElement [Line: 139]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 22 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-42-3-7-2-2-2-2-2-2-2-2-2-2-2-2-2-2-1 context. - TimeoutResultAtElement [Line: 139]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 22 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-42-3-7-2-2-2-2-2-2-2-2-2-2-2-2-2-2-1 context. - TimeoutResultAtElement [Line: 137]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 22 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-42-3-7-2-2-2-2-2-2-2-2-2-2-2-2-2-2-1 context. - TimeoutResultAtElement [Line: 137]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 22 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-42-3-7-2-2-2-2-2-2-2-2-2-2-2-2-2-2-1 context. - TimeoutResultAtElement [Line: 138]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 22 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-42-3-7-2-2-2-2-2-2-2-2-2-2-2-2-2-2-1 context. - TimeoutResultAtElement [Line: 138]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 22 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-42-3-7-2-2-2-2-2-2-2-2-2-2-2-2-2-2-1 context. - TimeoutResultAtElement [Line: 139]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 22 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-42-3-7-2-2-2-2-2-2-2-2-2-2-2-2-2-2-1 context. - TimeoutResultAtElement [Line: 139]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 22 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-42-3-7-2-2-2-2-2-2-2-2-2-2-2-2-2-2-1 context. - TimeoutResultAtElement [Line: 93]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 22 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-42-3-7-2-2-2-2-2-2-2-2-2-2-2-2-2-2-1 context. - TimeoutResultAtElement [Line: 93]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 22 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-42-3-7-2-2-2-2-2-2-2-2-2-2-2-2-2-2-1 context. - TimeoutResultAtElement [Line: 119]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 22 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-42-3-7-2-2-2-2-2-2-2-2-2-2-2-2-2-2-1 context. - TimeoutResultAtElement [Line: 94]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 22 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-42-3-7-2-2-2-2-2-2-2-2-2-2-2-2-2-2-1 context. - TimeoutResultAtElement [Line: 119]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 22 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-42-3-7-2-2-2-2-2-2-2-2-2-2-2-2-2-2-1 context. - TimeoutResultAtElement [Line: 94]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 22 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-42-3-7-2-2-2-2-2-2-2-2-2-2-2-2-2-2-1 context. - TimeoutResultAtElement [Line: 119]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 22 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-42-3-7-2-2-2-2-2-2-2-2-2-2-2-2-2-2-1 context. - TimeoutResultAtElement [Line: 95]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 22 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-42-3-7-2-2-2-2-2-2-2-2-2-2-2-2-2-2-1 context. - TimeoutResultAtElement [Line: 119]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 22 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-42-3-7-2-2-2-2-2-2-2-2-2-2-2-2-2-2-1 context. - TimeoutResultAtElement [Line: 95]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 22 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-42-3-7-2-2-2-2-2-2-2-2-2-2-2-2-2-2-1 context. - TimeoutResultAtElement [Line: 119]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 22 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-42-3-7-2-2-2-2-2-2-2-2-2-2-2-2-2-2-1 context. - TimeoutResultAtElement [Line: 96]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 22 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-42-3-7-2-2-2-2-2-2-2-2-2-2-2-2-2-2-1 context. - TimeoutResultAtElement [Line: 119]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 22 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-42-3-7-2-2-2-2-2-2-2-2-2-2-2-2-2-2-1 context. - TimeoutResultAtElement [Line: 96]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 22 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-42-3-7-2-2-2-2-2-2-2-2-2-2-2-2-2-2-1 context. - TimeoutResultAtElement [Line: 130]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 22 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-42-3-7-2-2-2-2-2-2-2-2-2-2-2-2-2-2-1 context. - TimeoutResultAtElement [Line: 130]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 22 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-42-3-7-2-2-2-2-2-2-2-2-2-2-2-2-2-2-1 context. - TimeoutResultAtElement [Line: 97]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 22 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-42-3-7-2-2-2-2-2-2-2-2-2-2-2-2-2-2-1 context. - TimeoutResultAtElement [Line: 97]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 22 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-42-3-7-2-2-2-2-2-2-2-2-2-2-2-2-2-2-1 context. - TimeoutResultAtElement [Line: 130]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 22 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-42-3-7-2-2-2-2-2-2-2-2-2-2-2-2-2-2-1 context. - TimeoutResultAtElement [Line: 130]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 22 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-42-3-7-2-2-2-2-2-2-2-2-2-2-2-2-2-2-1 context. - TimeoutResultAtElement [Line: 98]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 22 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-42-3-7-2-2-2-2-2-2-2-2-2-2-2-2-2-2-1 context. - TimeoutResultAtElement [Line: 98]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 22 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-42-3-7-2-2-2-2-2-2-2-2-2-2-2-2-2-2-1 context. - TimeoutResultAtElement [Line: 130]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 22 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-42-3-7-2-2-2-2-2-2-2-2-2-2-2-2-2-2-1 context. - TimeoutResultAtElement [Line: 130]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was analyzing trace of length 22 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-42-3-7-2-2-2-2-2-2-2-2-2-2-2-2-2-2-1 context. - TimeoutResultAtElement [Line: 21]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while CegarLoopForPetriNet was analyzing trace of length 22 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-42-3-7-2-2-2-2-2-2-2-2-2-2-2-2-2-2-1 context. - TimeoutResultAtElement [Line: 101]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was analyzing trace of length 22 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-42-3-7-2-2-2-2-2-2-2-2-2-2-2-2-2-2-1 context. - TimeoutResultAtElement [Line: 103]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was analyzing trace of length 22 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-42-3-7-2-2-2-2-2-2-2-2-2-2-2-2-2-2-1 context. - TimeoutResultAtElement [Line: 102]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was analyzing trace of length 22 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-42-3-7-2-2-2-2-2-2-2-2-2-2-2-2-2-2-1 context. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 775 locations, 64 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: 835.5s, OverallIterations: 26, TraceHistogramMax: 4, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 234.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 23.9s, HoareTripleCheckerStatistics: 945 mSolverCounterUnknown, 3322 SdHoareTripleChecker+Valid, 135.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3322 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 132.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 1165 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 435 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 7363 IncrementalHoareTripleChecker+Invalid, 9908 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 435 mSolverCounterUnsat, 0 mSDtfsCounter, 7363 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 945 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 390 GetRequests, 92 SyntacticMatches, 13 SemanticMatches, 285 ConstructedPredicates, 6 IntricatePredicates, 1 DeprecatedPredicates, 3201 ImplicationChecksByTransitivity, 60.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5526occurred in iteration=25, InterpolantAutomatonStates: 170, 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: 0.2s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 147.9s InterpolantComputationTime, 331 NumberOfCodeBlocks, 320 NumberOfCodeBlocksAsserted, 34 NumberOfCheckSat, 389 ConstructedInterpolants, 61 QuantifiedInterpolants, 8043 SizeOfPredicates, 70 NumberOfNonLiveVariables, 2722 ConjunctsInSsa, 260 ConjunctsInUnsatCore, 41 InterpolantComputations, 18 PerfectInterpolantSequences, 95/176 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown