/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-poker-hand-subst.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-26 23:52:12,831 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-26 23:52:12,913 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 23:52:12,917 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-26 23:52:12,918 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-26 23:52:12,947 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-26 23:52:12,947 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-26 23:52:12,948 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-26 23:52:12,948 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-26 23:52:12,949 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-26 23:52:12,949 INFO L153 SettingsManager]: * Use SBE=true [2023-08-26 23:52:12,949 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-26 23:52:12,950 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-26 23:52:12,950 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-26 23:52:12,950 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-26 23:52:12,951 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-26 23:52:12,951 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-26 23:52:12,951 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-26 23:52:12,952 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-26 23:52:12,952 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-26 23:52:12,952 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-26 23:52:12,953 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-26 23:52:12,953 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-26 23:52:12,953 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-26 23:52:12,954 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-26 23:52:12,954 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-26 23:52:12,954 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-26 23:52:12,954 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 23:52:12,955 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-26 23:52:12,955 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-26 23:52:12,955 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-26 23:52:12,955 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-26 23:52:12,956 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-26 23:52:12,956 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-26 23:52:12,956 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-26 23:52:12,956 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2023-08-26 23:52:13,266 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-26 23:52:13,287 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-26 23:52:13,289 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-26 23:52:13,290 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-26 23:52:13,290 INFO L274 PluginConnector]: CDTParser initialized [2023-08-26 23:52:13,292 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-poker-hand-subst.wvr.c [2023-08-26 23:52:14,408 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-26 23:52:14,668 INFO L384 CDTParser]: Found 1 translation units. [2023-08-26 23:52:14,669 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-poker-hand-subst.wvr.c [2023-08-26 23:52:14,693 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3b6cb300a/6efb711345b342e7bc0e97f75eb696d7/FLAGa00a8e3b2 [2023-08-26 23:52:14,713 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3b6cb300a/6efb711345b342e7bc0e97f75eb696d7 [2023-08-26 23:52:14,717 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-26 23:52:14,719 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-26 23:52:14,720 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-26 23:52:14,720 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-26 23:52:14,722 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-26 23:52:14,724 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 11:52:14" (1/1) ... [2023-08-26 23:52:14,725 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a76c688 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 11:52:14, skipping insertion in model container [2023-08-26 23:52:14,725 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 11:52:14" (1/1) ... [2023-08-26 23:52:14,774 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-26 23:52:15,056 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 23:52:15,071 INFO L201 MainTranslator]: Completed pre-run [2023-08-26 23:52:15,174 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 23:52:15,193 WARN L669 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-26 23:52:15,194 WARN L669 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-26 23:52:15,201 INFO L206 MainTranslator]: Completed translation [2023-08-26 23:52:15,201 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 11:52:15 WrapperNode [2023-08-26 23:52:15,201 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-26 23:52:15,202 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-26 23:52:15,202 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-26 23:52:15,202 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-26 23:52:15,207 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 11:52:15" (1/1) ... [2023-08-26 23:52:15,227 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 11:52:15" (1/1) ... [2023-08-26 23:52:15,332 INFO L138 Inliner]: procedures = 26, calls = 455, calls flagged for inlining = 101, calls inlined = 145, statements flattened = 2577 [2023-08-26 23:52:15,333 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-26 23:52:15,334 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-26 23:52:15,334 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-26 23:52:15,334 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-26 23:52:15,341 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 11:52:15" (1/1) ... [2023-08-26 23:52:15,342 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 11:52:15" (1/1) ... [2023-08-26 23:52:15,359 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 11:52:15" (1/1) ... [2023-08-26 23:52:15,359 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 11:52:15" (1/1) ... [2023-08-26 23:52:15,421 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 11:52:15" (1/1) ... [2023-08-26 23:52:15,440 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 11:52:15" (1/1) ... [2023-08-26 23:52:15,459 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 11:52:15" (1/1) ... [2023-08-26 23:52:15,466 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 11:52:15" (1/1) ... [2023-08-26 23:52:15,491 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-26 23:52:15,492 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-26 23:52:15,492 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-26 23:52:15,492 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-26 23:52:15,493 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 11:52:15" (1/1) ... [2023-08-26 23:52:15,498 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 23:52:15,507 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 23:52:15,518 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 23:52:15,535 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 23:52:15,551 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-26 23:52:15,551 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-26 23:52:15,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-26 23:52:15,552 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-26 23:52:15,552 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-26 23:52:15,552 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-26 23:52:15,552 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-26 23:52:15,552 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-26 23:52:15,552 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-08-26 23:52:15,552 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-08-26 23:52:15,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-26 23:52:15,553 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-26 23:52:15,553 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-26 23:52:15,553 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-26 23:52:15,553 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-26 23:52:15,553 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-26 23:52:15,553 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-26 23:52:15,556 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 23:52:15,765 INFO L236 CfgBuilder]: Building ICFG [2023-08-26 23:52:15,768 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-26 23:52:17,691 INFO L277 CfgBuilder]: Performing block encoding [2023-08-26 23:52:20,996 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-26 23:52:20,996 INFO L302 CfgBuilder]: Removed 18 assume(true) statements. [2023-08-26 23:52:20,999 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 11:52:20 BoogieIcfgContainer [2023-08-26 23:52:20,999 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-26 23:52:21,001 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-26 23:52:21,001 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-26 23:52:21,003 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-26 23:52:21,003 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.08 11:52:14" (1/3) ... [2023-08-26 23:52:21,004 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6378089a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 11:52:21, skipping insertion in model container [2023-08-26 23:52:21,004 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 11:52:15" (2/3) ... [2023-08-26 23:52:21,004 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6378089a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 11:52:21, skipping insertion in model container [2023-08-26 23:52:21,004 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 11:52:20" (3/3) ... [2023-08-26 23:52:21,005 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-poker-hand-subst.wvr.c [2023-08-26 23:52:21,020 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-26 23:52:21,021 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 103 error locations. [2023-08-26 23:52:21,021 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-26 23:52:22,143 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-08-26 23:52:22,186 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 796 places, 865 transitions, 1754 flow [2023-08-26 23:52:22,563 INFO L124 PetriNetUnfolderBase]: 79/862 cut-off events. [2023-08-26 23:52:22,563 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-08-26 23:52:22,574 INFO L83 FinitePrefix]: Finished finitePrefix Result has 875 conditions, 862 events. 79/862 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1706 event pairs, 0 based on Foata normal form. 0/680 useless extension candidates. Maximal degree in co-relation 754. Up to 7 conditions per place. [2023-08-26 23:52:22,574 INFO L82 GeneralOperation]: Start removeDead. Operand has 796 places, 865 transitions, 1754 flow [2023-08-26 23:52:22,589 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 782 places, 851 transitions, 1720 flow [2023-08-26 23:52:22,593 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-26 23:52:22,608 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 782 places, 851 transitions, 1720 flow [2023-08-26 23:52:22,615 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 782 places, 851 transitions, 1720 flow [2023-08-26 23:52:22,616 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 782 places, 851 transitions, 1720 flow [2023-08-26 23:52:22,894 INFO L124 PetriNetUnfolderBase]: 79/851 cut-off events. [2023-08-26 23:52:22,895 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-08-26 23:52:22,899 INFO L83 FinitePrefix]: Finished finitePrefix Result has 864 conditions, 851 events. 79/851 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1706 event pairs, 0 based on Foata normal form. 0/670 useless extension candidates. Maximal degree in co-relation 754. Up to 7 conditions per place. [2023-08-26 23:52:22,918 INFO L119 LiptonReduction]: Number of co-enabled transitions 45198 [2023-08-26 23:55:28,967 INFO L134 LiptonReduction]: Checked pairs total: 55123 [2023-08-26 23:55:28,967 INFO L136 LiptonReduction]: Total number of compositions: 1088 [2023-08-26 23:55:28,979 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-26 23:55:28,985 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;@57507957, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-26 23:55:28,985 INFO L358 AbstractCegarLoop]: Starting to check reachability of 184 error locations. [2023-08-26 23:55:28,987 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-26 23:55:28,987 INFO L124 PetriNetUnfolderBase]: 1/2 cut-off events. [2023-08-26 23:55:28,988 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 23:55:28,988 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 23:55:28,988 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2023-08-26 23:55:28,989 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 181 more)] === [2023-08-26 23:55:28,993 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 23:55:28,993 INFO L85 PathProgramCache]: Analyzing trace with hash 300116, now seen corresponding path program 1 times [2023-08-26 23:55:29,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 23:55:29,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601427579] [2023-08-26 23:55:29,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 23:55:29,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 23:55:29,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 23:55:29,386 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 23:55:29,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 23:55:29,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [601427579] [2023-08-26 23:55:29,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [601427579] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 23:55:29,387 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 23:55:29,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-26 23:55:29,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846181422] [2023-08-26 23:55:29,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 23:55:29,398 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 23:55:29,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 23:55:29,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 23:55:29,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 23:55:29,430 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 608 out of 1953 [2023-08-26 23:55:29,436 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 160 transitions, 338 flow. Second operand has 3 states, 3 states have (on average 608.6666666666666) internal successors, (1826), 3 states have internal predecessors, (1826), 0 states have call successors, (0), 0 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 23:55:29,436 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 23:55:29,436 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 608 of 1953 [2023-08-26 23:55:29,437 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 23:56:11,654 INFO L124 PetriNetUnfolderBase]: 58396/78817 cut-off events. [2023-08-26 23:56:11,654 INFO L125 PetriNetUnfolderBase]: For 1732/1732 co-relation queries the response was YES. [2023-08-26 23:56:11,766 INFO L83 FinitePrefix]: Finished finitePrefix Result has 159028 conditions, 78817 events. 58396/78817 cut-off events. For 1732/1732 co-relation queries the response was YES. Maximal size of possible extension queue 6826. Compared 514438 event pairs, 47100 based on Foata normal form. 0/19591 useless extension candidates. Maximal degree in co-relation 152430. Up to 78795 conditions per place. [2023-08-26 23:56:12,104 INFO L140 encePairwiseOnDemand]: 1877/1953 looper letters, 132 selfloop transitions, 25 changer transitions 0/157 dead transitions. [2023-08-26 23:56:12,104 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 157 transitions, 646 flow [2023-08-26 23:56:12,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 23:56:12,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 23:56:12,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2032 transitions. [2023-08-26 23:56:12,126 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3468168629458952 [2023-08-26 23:56:12,128 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2032 transitions. [2023-08-26 23:56:12,128 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2032 transitions. [2023-08-26 23:56:12,132 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 23:56:12,135 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2032 transitions. [2023-08-26 23:56:12,143 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 677.3333333333334) internal successors, (2032), 3 states have internal predecessors, (2032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 23:56:12,158 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1953.0) internal successors, (7812), 4 states have internal predecessors, (7812), 0 states have call successors, (0), 0 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 23:56:12,162 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1953.0) internal successors, (7812), 4 states have internal predecessors, (7812), 0 states have call successors, (0), 0 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 23:56:12,164 INFO L175 Difference]: Start difference. First operand has 146 places, 160 transitions, 338 flow. Second operand 3 states and 2032 transitions. [2023-08-26 23:56:12,164 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 157 transitions, 646 flow [2023-08-26 23:56:12,249 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 157 transitions, 634 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-08-26 23:56:12,253 INFO L231 Difference]: Finished difference. Result has 117 places, 157 transitions, 516 flow [2023-08-26 23:56:12,255 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1953, PETRI_DIFFERENCE_MINUEND_FLOW=272, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=108, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=516, PETRI_PLACES=117, PETRI_TRANSITIONS=157} [2023-08-26 23:56:12,258 INFO L281 CegarLoopForPetriNet]: 146 programPoint places, -29 predicate places. [2023-08-26 23:56:12,259 INFO L495 AbstractCegarLoop]: Abstraction has has 117 places, 157 transitions, 516 flow [2023-08-26 23:56:12,260 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 608.6666666666666) internal successors, (1826), 3 states have internal predecessors, (1826), 0 states have call successors, (0), 0 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 23:56:12,260 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 23:56:12,260 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-26 23:56:12,261 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-26 23:56:12,261 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 181 more)] === [2023-08-26 23:56:12,268 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 23:56:12,269 INFO L85 PathProgramCache]: Analyzing trace with hash 9319473, now seen corresponding path program 1 times [2023-08-26 23:56:12,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 23:56:12,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929498405] [2023-08-26 23:56:12,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 23:56:12,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 23:56:12,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 23:56:12,383 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 23:56:12,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 23:56:12,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [929498405] [2023-08-26 23:56:12,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [929498405] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 23:56:12,384 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 23:56:12,384 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 23:56:12,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096520748] [2023-08-26 23:56:12,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 23:56:12,386 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 23:56:12,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 23:56:12,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 23:56:12,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 23:56:12,389 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 608 out of 1953 [2023-08-26 23:56:12,391 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 157 transitions, 516 flow. Second operand has 3 states, 3 states have (on average 609.0) internal successors, (1827), 3 states have internal predecessors, (1827), 0 states have call successors, (0), 0 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 23:56:12,391 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 23:56:12,391 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 608 of 1953 [2023-08-26 23:56:12,391 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 23:56:52,867 INFO L124 PetriNetUnfolderBase]: 58396/78805 cut-off events. [2023-08-26 23:56:52,867 INFO L125 PetriNetUnfolderBase]: For 420/420 co-relation queries the response was YES. [2023-08-26 23:56:52,940 INFO L83 FinitePrefix]: Finished finitePrefix Result has 158163 conditions, 78805 events. 58396/78805 cut-off events. For 420/420 co-relation queries the response was YES. Maximal size of possible extension queue 6675. Compared 513022 event pairs, 47100 based on Foata normal form. 0/19613 useless extension candidates. Maximal degree in co-relation 157951. Up to 78747 conditions per place. [2023-08-26 23:56:53,210 INFO L140 encePairwiseOnDemand]: 1939/1953 looper letters, 142 selfloop transitions, 3 changer transitions 0/145 dead transitions. [2023-08-26 23:56:53,211 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 145 transitions, 758 flow [2023-08-26 23:56:53,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 23:56:53,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 23:56:53,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1957 transitions. [2023-08-26 23:56:53,218 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.33401604369346305 [2023-08-26 23:56:53,218 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1957 transitions. [2023-08-26 23:56:53,218 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1957 transitions. [2023-08-26 23:56:53,219 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 23:56:53,219 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1957 transitions. [2023-08-26 23:56:53,223 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 652.3333333333334) internal successors, (1957), 3 states have internal predecessors, (1957), 0 states have call successors, (0), 0 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 23:56:53,232 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1953.0) internal successors, (7812), 4 states have internal predecessors, (7812), 0 states have call successors, (0), 0 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 23:56:53,236 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1953.0) internal successors, (7812), 4 states have internal predecessors, (7812), 0 states have call successors, (0), 0 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 23:56:53,236 INFO L175 Difference]: Start difference. First operand has 117 places, 157 transitions, 516 flow. Second operand 3 states and 1957 transitions. [2023-08-26 23:56:53,236 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 145 transitions, 758 flow [2023-08-26 23:56:53,239 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 145 transitions, 708 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-26 23:56:53,243 INFO L231 Difference]: Finished difference. Result has 105 places, 145 transitions, 424 flow [2023-08-26 23:56:53,243 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1953, PETRI_DIFFERENCE_MINUEND_FLOW=418, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=145, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=142, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=424, PETRI_PLACES=105, PETRI_TRANSITIONS=145} [2023-08-26 23:56:53,244 INFO L281 CegarLoopForPetriNet]: 146 programPoint places, -41 predicate places. [2023-08-26 23:56:53,244 INFO L495 AbstractCegarLoop]: Abstraction has has 105 places, 145 transitions, 424 flow [2023-08-26 23:56:53,246 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 609.0) internal successors, (1827), 3 states have internal predecessors, (1827), 0 states have call successors, (0), 0 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 23:56:53,248 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 23:56:53,248 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-26 23:56:53,249 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-26 23:56:53,253 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 181 more)] === [2023-08-26 23:56:53,254 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 23:56:53,254 INFO L85 PathProgramCache]: Analyzing trace with hash 9319585, now seen corresponding path program 1 times [2023-08-26 23:56:53,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 23:56:53,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921960532] [2023-08-26 23:56:53,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 23:56:53,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 23:56:53,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 23:56:53,320 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 23:56:53,320 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 23:56:53,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921960532] [2023-08-26 23:56:53,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1921960532] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-26 23:56:53,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1950917209] [2023-08-26 23:56:53,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 23:56:53,321 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 23:56:53,321 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 23:56:53,325 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 23:56:53,351 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 23:56:54,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 23:56:54,544 INFO L262 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 4 conjunts are in the unsatisfiable core [2023-08-26 23:56:54,547 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-26 23:56:54,573 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 23:56:54,573 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-26 23:56:54,593 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 23:56:54,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1950917209] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-26 23:56:54,593 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-26 23:56:54,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 5 [2023-08-26 23:56:54,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243546301] [2023-08-26 23:56:54,594 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-26 23:56:54,594 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-26 23:56:54,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 23:56:54,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-26 23:56:54,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-08-26 23:56:54,598 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 608 out of 1953 [2023-08-26 23:56:54,602 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 145 transitions, 424 flow. Second operand has 7 states, 7 states have (on average 609.1428571428571) internal successors, (4264), 7 states have internal predecessors, (4264), 0 states have call successors, (0), 0 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 23:56:54,603 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 23:56:54,603 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 608 of 1953 [2023-08-26 23:56:54,603 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 23:57:34,834 INFO L124 PetriNetUnfolderBase]: 58432/78877 cut-off events. [2023-08-26 23:57:34,835 INFO L125 PetriNetUnfolderBase]: For 420/420 co-relation queries the response was YES. [2023-08-26 23:57:34,908 INFO L83 FinitePrefix]: Finished finitePrefix Result has 158360 conditions, 78877 events. 58432/78877 cut-off events. For 420/420 co-relation queries the response was YES. Maximal size of possible extension queue 6791. Compared 515082 event pairs, 47100 based on Foata normal form. 0/19632 useless extension candidates. Maximal degree in co-relation 157951. Up to 78786 conditions per place. [2023-08-26 23:57:35,104 INFO L140 encePairwiseOnDemand]: 1916/1953 looper letters, 120 selfloop transitions, 97 changer transitions 0/217 dead transitions. [2023-08-26 23:57:35,104 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 217 transitions, 1152 flow [2023-08-26 23:57:35,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-26 23:57:35,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-26 23:57:35,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3901 transitions. [2023-08-26 23:57:35,115 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.33290663935825227 [2023-08-26 23:57:35,115 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 3901 transitions. [2023-08-26 23:57:35,115 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 3901 transitions. [2023-08-26 23:57:35,117 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 23:57:35,117 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 3901 transitions. [2023-08-26 23:57:35,125 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 650.1666666666666) internal successors, (3901), 6 states have internal predecessors, (3901), 0 states have call successors, (0), 0 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 23:57:35,141 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1953.0) internal successors, (13671), 7 states have internal predecessors, (13671), 0 states have call successors, (0), 0 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 23:57:35,144 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1953.0) internal successors, (13671), 7 states have internal predecessors, (13671), 0 states have call successors, (0), 0 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 23:57:35,144 INFO L175 Difference]: Start difference. First operand has 105 places, 145 transitions, 424 flow. Second operand 6 states and 3901 transitions. [2023-08-26 23:57:35,144 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 217 transitions, 1152 flow [2023-08-26 23:57:35,146 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 217 transitions, 1140 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-26 23:57:35,149 INFO L231 Difference]: Finished difference. Result has 111 places, 217 transitions, 1106 flow [2023-08-26 23:57:35,149 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1953, PETRI_DIFFERENCE_MINUEND_FLOW=418, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=145, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=38, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1106, PETRI_PLACES=111, PETRI_TRANSITIONS=217} [2023-08-26 23:57:35,150 INFO L281 CegarLoopForPetriNet]: 146 programPoint places, -35 predicate places. [2023-08-26 23:57:35,150 INFO L495 AbstractCegarLoop]: Abstraction has has 111 places, 217 transitions, 1106 flow [2023-08-26 23:57:35,152 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 609.1428571428571) internal successors, (4264), 7 states have internal predecessors, (4264), 0 states have call successors, (0), 0 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 23:57:35,152 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 23:57:35,152 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1] [2023-08-26 23:57:35,163 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 23:57:35,363 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 23:57:35,363 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 181 more)] === [2023-08-26 23:57:35,364 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 23:57:35,364 INFO L85 PathProgramCache]: Analyzing trace with hash -1520688124, now seen corresponding path program 2 times [2023-08-26 23:57:35,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 23:57:35,364 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574053642] [2023-08-26 23:57:35,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 23:57:35,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 23:57:35,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 23:57:35,491 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 23:57:35,491 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 23:57:35,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574053642] [2023-08-26 23:57:35,492 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [574053642] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-26 23:57:35,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [427915215] [2023-08-26 23:57:35,492 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-26 23:57:35,492 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 23:57:35,492 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 23:57:35,505 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 23:57:35,515 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 23:57:36,613 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-08-26 23:57:36,613 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-26 23:57:36,615 INFO L262 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 5 conjunts are in the unsatisfiable core [2023-08-26 23:57:36,616 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-26 23:57:36,630 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 23:57:36,630 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-26 23:57:36,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [427915215] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 23:57:36,631 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-26 23:57:36,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [5] total 6 [2023-08-26 23:57:36,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406476614] [2023-08-26 23:57:36,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 23:57:36,631 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 23:57:36,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 23:57:36,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 23:57:36,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2023-08-26 23:57:36,635 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 620 out of 1953 [2023-08-26 23:57:36,636 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 217 transitions, 1106 flow. Second operand has 3 states, 3 states have (on average 621.0) internal successors, (1863), 3 states have internal predecessors, (1863), 0 states have call successors, (0), 0 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 23:57:36,637 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 23:57:36,637 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 620 of 1953 [2023-08-26 23:57:36,637 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 23:58:16,731 INFO L124 PetriNetUnfolderBase]: 58432/78868 cut-off events. [2023-08-26 23:58:16,732 INFO L125 PetriNetUnfolderBase]: For 443/443 co-relation queries the response was YES. [2023-08-26 23:58:16,857 INFO L83 FinitePrefix]: Finished finitePrefix Result has 158521 conditions, 78868 events. 58432/78868 cut-off events. For 443/443 co-relation queries the response was YES. Maximal size of possible extension queue 6787. Compared 514791 event pairs, 47100 based on Foata normal form. 9/19675 useless extension candidates. Maximal degree in co-relation 158220. Up to 78835 conditions per place. [2023-08-26 23:58:17,074 INFO L140 encePairwiseOnDemand]: 1941/1953 looper letters, 197 selfloop transitions, 11 changer transitions 0/208 dead transitions. [2023-08-26 23:58:17,074 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 208 transitions, 1432 flow [2023-08-26 23:58:17,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 23:58:17,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 23:58:17,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1981 transitions. [2023-08-26 23:58:17,086 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.33811230585424135 [2023-08-26 23:58:17,086 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1981 transitions. [2023-08-26 23:58:17,086 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1981 transitions. [2023-08-26 23:58:17,087 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 23:58:17,088 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1981 transitions. [2023-08-26 23:58:17,091 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 660.3333333333334) internal successors, (1981), 3 states have internal predecessors, (1981), 0 states have call successors, (0), 0 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 23:58:17,098 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1953.0) internal successors, (7812), 4 states have internal predecessors, (7812), 0 states have call successors, (0), 0 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 23:58:17,099 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1953.0) internal successors, (7812), 4 states have internal predecessors, (7812), 0 states have call successors, (0), 0 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 23:58:17,100 INFO L175 Difference]: Start difference. First operand has 111 places, 217 transitions, 1106 flow. Second operand 3 states and 1981 transitions. [2023-08-26 23:58:17,100 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 208 transitions, 1432 flow [2023-08-26 23:58:17,103 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 208 transitions, 1296 flow, removed 39 selfloop flow, removed 1 redundant places. [2023-08-26 23:58:17,106 INFO L231 Difference]: Finished difference. Result has 103 places, 208 transitions, 902 flow [2023-08-26 23:58:17,106 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1953, PETRI_DIFFERENCE_MINUEND_FLOW=880, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=208, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=197, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=902, PETRI_PLACES=103, PETRI_TRANSITIONS=208} [2023-08-26 23:58:17,107 INFO L281 CegarLoopForPetriNet]: 146 programPoint places, -43 predicate places. [2023-08-26 23:58:17,107 INFO L495 AbstractCegarLoop]: Abstraction has has 103 places, 208 transitions, 902 flow [2023-08-26 23:58:17,108 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 621.0) internal successors, (1863), 3 states have internal predecessors, (1863), 0 states have call successors, (0), 0 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 23:58:17,108 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 23:58:17,108 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1] [2023-08-26 23:58:17,121 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-08-26 23:58:17,320 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,SelfDestructingSolverStorable3 [2023-08-26 23:58:17,320 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 181 more)] === [2023-08-26 23:58:17,320 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 23:58:17,321 INFO L85 PathProgramCache]: Analyzing trace with hash -824938084, now seen corresponding path program 1 times [2023-08-26 23:58:17,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 23:58:17,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883255307] [2023-08-26 23:58:17,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 23:58:17,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 23:58:17,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 23:58:17,469 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 23:58:17,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 23:58:17,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883255307] [2023-08-26 23:58:17,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1883255307] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 23:58:17,471 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 23:58:17,471 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 23:58:17,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929107299] [2023-08-26 23:58:17,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 23:58:17,472 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 23:58:17,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 23:58:17,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 23:58:17,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 23:58:17,474 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 560 out of 1953 [2023-08-26 23:58:17,481 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 208 transitions, 902 flow. Second operand has 3 states, 3 states have (on average 562.0) internal successors, (1686), 3 states have internal predecessors, (1686), 0 states have call successors, (0), 0 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 23:58:17,482 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 23:58:17,482 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 560 of 1953 [2023-08-26 23:58:17,482 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 23:58:57,371 INFO L124 PetriNetUnfolderBase]: 58429/78865 cut-off events. [2023-08-26 23:58:57,372 INFO L125 PetriNetUnfolderBase]: For 435/435 co-relation queries the response was YES. [2023-08-26 23:58:57,504 INFO L83 FinitePrefix]: Finished finitePrefix Result has 158439 conditions, 78865 events. 58429/78865 cut-off events. For 435/435 co-relation queries the response was YES. Maximal size of possible extension queue 6787. Compared 514741 event pairs, 47100 based on Foata normal form. 3/19679 useless extension candidates. Maximal degree in co-relation 158181. Up to 78857 conditions per place. [2023-08-26 23:58:57,703 INFO L140 encePairwiseOnDemand]: 1946/1953 looper letters, 193 selfloop transitions, 12 changer transitions 0/205 dead transitions. [2023-08-26 23:58:57,703 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 205 transitions, 1298 flow [2023-08-26 23:58:57,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 23:58:57,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 23:58:57,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1798 transitions. [2023-08-26 23:58:57,709 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.30687830687830686 [2023-08-26 23:58:57,709 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1798 transitions. [2023-08-26 23:58:57,709 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1798 transitions. [2023-08-26 23:58:57,710 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 23:58:57,710 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1798 transitions. [2023-08-26 23:58:57,713 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 599.3333333333334) internal successors, (1798), 3 states have internal predecessors, (1798), 0 states have call successors, (0), 0 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 23:58:57,719 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1953.0) internal successors, (7812), 4 states have internal predecessors, (7812), 0 states have call successors, (0), 0 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 23:58:57,720 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1953.0) internal successors, (7812), 4 states have internal predecessors, (7812), 0 states have call successors, (0), 0 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 23:58:57,721 INFO L175 Difference]: Start difference. First operand has 103 places, 208 transitions, 902 flow. Second operand 3 states and 1798 transitions. [2023-08-26 23:58:57,721 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 205 transitions, 1298 flow [2023-08-26 23:58:57,724 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 205 transitions, 1278 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-26 23:58:57,726 INFO L231 Difference]: Finished difference. Result has 103 places, 205 transitions, 892 flow [2023-08-26 23:58:57,726 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1953, PETRI_DIFFERENCE_MINUEND_FLOW=868, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=205, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=193, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=892, PETRI_PLACES=103, PETRI_TRANSITIONS=205} [2023-08-26 23:58:57,728 INFO L281 CegarLoopForPetriNet]: 146 programPoint places, -43 predicate places. [2023-08-26 23:58:57,729 INFO L495 AbstractCegarLoop]: Abstraction has has 103 places, 205 transitions, 892 flow [2023-08-26 23:58:57,733 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 562.0) internal successors, (1686), 3 states have internal predecessors, (1686), 0 states have call successors, (0), 0 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 23:58:57,733 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 23:58:57,733 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 23:58:57,733 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-26 23:58:57,733 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 181 more)] === [2023-08-26 23:58:57,734 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 23:58:57,734 INFO L85 PathProgramCache]: Analyzing trace with hash -944904727, now seen corresponding path program 1 times [2023-08-26 23:58:57,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 23:58:57,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951000660] [2023-08-26 23:58:57,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 23:58:57,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 23:58:57,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 23:58:57,878 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-08-26 23:58:57,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 23:58:57,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [951000660] [2023-08-26 23:58:57,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [951000660] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-26 23:58:57,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [472782466] [2023-08-26 23:58:57,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 23:58:57,879 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 23:58:57,879 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 23:58:57,881 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 23:58:57,907 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 23:58:59,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 23:58:59,093 INFO L262 TraceCheckSpWp]: Trace formula consists of 328 conjuncts, 5 conjunts are in the unsatisfiable core [2023-08-26 23:58:59,094 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-26 23:58:59,115 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-08-26 23:58:59,115 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-26 23:58:59,131 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-08-26 23:58:59,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [472782466] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-26 23:58:59,131 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-26 23:58:59,131 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 7 [2023-08-26 23:58:59,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566008961] [2023-08-26 23:58:59,132 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-26 23:58:59,132 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-26 23:58:59,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 23:58:59,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-26 23:58:59,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2023-08-26 23:58:59,136 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 560 out of 1953 [2023-08-26 23:58:59,139 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 205 transitions, 892 flow. Second operand has 8 states, 8 states have (on average 561.875) internal successors, (4495), 8 states have internal predecessors, (4495), 0 states have call successors, (0), 0 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 23:58:59,139 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 23:58:59,140 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 560 of 1953 [2023-08-26 23:58:59,140 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 23:59:39,608 INFO L124 PetriNetUnfolderBase]: 58396/78832 cut-off events. [2023-08-26 23:59:39,608 INFO L125 PetriNetUnfolderBase]: For 435/435 co-relation queries the response was YES. [2023-08-26 23:59:39,744 INFO L83 FinitePrefix]: Finished finitePrefix Result has 158311 conditions, 78832 events. 58396/78832 cut-off events. For 435/435 co-relation queries the response was YES. Maximal size of possible extension queue 6765. Compared 513789 event pairs, 47100 based on Foata normal form. 33/19676 useless extension candidates. Maximal degree in co-relation 158244. Up to 78784 conditions per place. [2023-08-26 23:59:39,956 INFO L140 encePairwiseOnDemand]: 1925/1953 looper letters, 111 selfloop transitions, 61 changer transitions 0/172 dead transitions. [2023-08-26 23:59:39,956 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 172 transitions, 1044 flow [2023-08-26 23:59:39,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-26 23:59:39,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-26 23:59:39,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 4661 transitions. [2023-08-26 23:59:39,970 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.2983230926779314 [2023-08-26 23:59:39,970 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 4661 transitions. [2023-08-26 23:59:39,970 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 4661 transitions. [2023-08-26 23:59:39,972 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 23:59:39,972 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 4661 transitions. [2023-08-26 23:59:39,979 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 582.625) internal successors, (4661), 8 states have internal predecessors, (4661), 0 states have call successors, (0), 0 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 23:59:39,996 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 1953.0) internal successors, (17577), 9 states have internal predecessors, (17577), 0 states have call successors, (0), 0 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 23:59:39,998 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 1953.0) internal successors, (17577), 9 states have internal predecessors, (17577), 0 states have call successors, (0), 0 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 23:59:39,999 INFO L175 Difference]: Start difference. First operand has 103 places, 205 transitions, 892 flow. Second operand 8 states and 4661 transitions. [2023-08-26 23:59:39,999 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 172 transitions, 1044 flow [2023-08-26 23:59:40,002 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 172 transitions, 1038 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-26 23:59:40,005 INFO L231 Difference]: Finished difference. Result has 109 places, 172 transitions, 816 flow [2023-08-26 23:59:40,005 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1953, PETRI_DIFFERENCE_MINUEND_FLOW=694, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=172, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=61, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=111, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=816, PETRI_PLACES=109, PETRI_TRANSITIONS=172} [2023-08-26 23:59:40,008 INFO L281 CegarLoopForPetriNet]: 146 programPoint places, -37 predicate places. [2023-08-26 23:59:40,008 INFO L495 AbstractCegarLoop]: Abstraction has has 109 places, 172 transitions, 816 flow [2023-08-26 23:59:40,009 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 561.875) internal successors, (4495), 8 states have internal predecessors, (4495), 0 states have call successors, (0), 0 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 23:59:40,009 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 23:59:40,009 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1] [2023-08-26 23:59:40,021 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 23:59:40,220 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 23:59:40,220 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 181 more)] === [2023-08-26 23:59:40,221 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 23:59:40,221 INFO L85 PathProgramCache]: Analyzing trace with hash 1654079324, now seen corresponding path program 2 times [2023-08-26 23:59:40,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 23:59:40,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [839144539] [2023-08-26 23:59:40,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 23:59:40,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 23:59:40,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 23:59:40,402 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-08-26 23:59:40,403 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 23:59:40,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [839144539] [2023-08-26 23:59:40,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [839144539] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-26 23:59:40,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1372516404] [2023-08-26 23:59:40,403 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-26 23:59:40,403 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 23:59:40,404 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 23:59:40,405 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 23:59:40,432 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 23:59:41,559 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-08-26 23:59:41,559 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-26 23:59:41,560 INFO L262 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 5 conjunts are in the unsatisfiable core [2023-08-26 23:59:41,561 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-26 23:59:41,578 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-08-26 23:59:41,578 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-26 23:59:41,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1372516404] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 23:59:41,578 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-26 23:59:41,578 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [6] total 8 [2023-08-26 23:59:41,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174077476] [2023-08-26 23:59:41,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 23:59:41,579 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 23:59:41,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 23:59:41,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 23:59:41,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2023-08-26 23:59:41,582 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 620 out of 1953 [2023-08-26 23:59:41,583 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 172 transitions, 816 flow. Second operand has 3 states, 3 states have (on average 623.0) internal successors, (1869), 3 states have internal predecessors, (1869), 0 states have call successors, (0), 0 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 23:59:41,583 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 23:59:41,583 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 620 of 1953 [2023-08-26 23:59:41,583 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand