/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf --traceabstraction.order.of.the.error.locations.to.be.checked INSUFFICIENT_FIRST -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true -i ../../../trunk/examples/svcomp/weaver/chl-time-symm.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-27 06:32:09,157 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-27 06:32:09,221 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf [2023-08-27 06:32:09,225 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-27 06:32:09,226 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-27 06:32:09,250 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-27 06:32:09,250 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-27 06:32:09,254 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-27 06:32:09,255 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-27 06:32:09,257 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-27 06:32:09,257 INFO L153 SettingsManager]: * Use SBE=true [2023-08-27 06:32:09,258 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-27 06:32:09,258 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-27 06:32:09,259 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-27 06:32:09,259 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-27 06:32:09,259 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-27 06:32:09,259 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-27 06:32:09,259 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-27 06:32:09,260 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-27 06:32:09,260 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-27 06:32:09,260 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-27 06:32:09,261 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-27 06:32:09,261 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-27 06:32:09,261 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-27 06:32:09,261 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-27 06:32:09,262 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-27 06:32:09,262 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-27 06:32:09,262 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-27 06:32:09,262 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-27 06:32:09,262 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-27 06:32:09,263 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-27 06:32:09,263 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-27 06:32:09,263 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-27 06:32:09,263 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-27 06:32:09,264 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-27 06:32:09,264 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> INSUFFICIENT_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2023-08-27 06:32:09,518 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-27 06:32:09,540 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-27 06:32:09,542 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-27 06:32:09,542 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-27 06:32:09,543 INFO L274 PluginConnector]: CDTParser initialized [2023-08-27 06:32:09,544 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-time-symm.wvr.c [2023-08-27 06:32:10,545 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-27 06:32:10,735 INFO L384 CDTParser]: Found 1 translation units. [2023-08-27 06:32:10,736 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-time-symm.wvr.c [2023-08-27 06:32:10,742 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a65d745f4/a4522dc8d1ee4d7cbc4cb06aa4926fc6/FLAGe19ec5e58 [2023-08-27 06:32:10,755 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a65d745f4/a4522dc8d1ee4d7cbc4cb06aa4926fc6 [2023-08-27 06:32:10,759 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-27 06:32:10,761 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-27 06:32:10,764 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-27 06:32:10,764 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-27 06:32:10,766 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-27 06:32:10,767 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 06:32:10" (1/1) ... [2023-08-27 06:32:10,768 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7605fb74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:32:10, skipping insertion in model container [2023-08-27 06:32:10,768 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 06:32:10" (1/1) ... [2023-08-27 06:32:10,786 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-27 06:32:10,936 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-27 06:32:10,944 INFO L201 MainTranslator]: Completed pre-run [2023-08-27 06:32:10,975 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-27 06:32:10,981 WARN L669 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-27 06:32:10,982 WARN L669 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-27 06:32:10,986 INFO L206 MainTranslator]: Completed translation [2023-08-27 06:32:10,986 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:32:10 WrapperNode [2023-08-27 06:32:10,986 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-27 06:32:10,987 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-27 06:32:10,987 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-27 06:32:10,987 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-27 06:32:10,992 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:32:10" (1/1) ... [2023-08-27 06:32:11,002 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:32:10" (1/1) ... [2023-08-27 06:32:11,031 INFO L138 Inliner]: procedures = 22, calls = 30, calls flagged for inlining = 10, calls inlined = 16, statements flattened = 214 [2023-08-27 06:32:11,031 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-27 06:32:11,032 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-27 06:32:11,032 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-27 06:32:11,032 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-27 06:32:11,038 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:32:10" (1/1) ... [2023-08-27 06:32:11,038 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:32:10" (1/1) ... [2023-08-27 06:32:11,046 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:32:10" (1/1) ... [2023-08-27 06:32:11,047 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:32:10" (1/1) ... [2023-08-27 06:32:11,051 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:32:10" (1/1) ... [2023-08-27 06:32:11,052 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:32:10" (1/1) ... [2023-08-27 06:32:11,053 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:32:10" (1/1) ... [2023-08-27 06:32:11,054 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:32:10" (1/1) ... [2023-08-27 06:32:11,055 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-27 06:32:11,056 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-27 06:32:11,056 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-27 06:32:11,056 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-27 06:32:11,065 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:32:10" (1/1) ... [2023-08-27 06:32:11,069 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-27 06:32:11,078 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-27 06:32:11,110 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-27 06:32:11,123 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-27 06:32:11,137 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-27 06:32:11,138 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-27 06:32:11,138 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-27 06:32:11,138 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-27 06:32:11,138 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-27 06:32:11,138 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-27 06:32:11,138 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-27 06:32:11,138 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-27 06:32:11,138 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-27 06:32:11,138 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-27 06:32:11,138 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-27 06:32:11,138 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-27 06:32:11,139 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-27 06:32:11,139 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-27 06:32:11,140 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-27 06:32:11,206 INFO L236 CfgBuilder]: Building ICFG [2023-08-27 06:32:11,207 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-27 06:32:11,544 INFO L277 CfgBuilder]: Performing block encoding [2023-08-27 06:32:12,147 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-27 06:32:12,148 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-27 06:32:12,150 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 06:32:12 BoogieIcfgContainer [2023-08-27 06:32:12,151 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-27 06:32:12,153 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-27 06:32:12,153 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-27 06:32:12,155 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-27 06:32:12,155 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.08 06:32:10" (1/3) ... [2023-08-27 06:32:12,156 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@93bf19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 06:32:12, skipping insertion in model container [2023-08-27 06:32:12,156 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:32:10" (2/3) ... [2023-08-27 06:32:12,156 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@93bf19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 06:32:12, skipping insertion in model container [2023-08-27 06:32:12,156 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 06:32:12" (3/3) ... [2023-08-27 06:32:12,157 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-time-symm.wvr.c [2023-08-27 06:32:12,170 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-27 06:32:12,170 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 27 error locations. [2023-08-27 06:32:12,171 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-27 06:32:12,390 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-27 06:32:12,411 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 118 places, 112 transitions, 240 flow [2023-08-27 06:32:12,450 INFO L124 PetriNetUnfolderBase]: 1/110 cut-off events. [2023-08-27 06:32:12,450 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-27 06:32:12,452 INFO L83 FinitePrefix]: Finished finitePrefix Result has 119 conditions, 110 events. 1/110 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 135 event pairs, 0 based on Foata normal form. 0/82 useless extension candidates. Maximal degree in co-relation 41. Up to 2 conditions per place. [2023-08-27 06:32:12,453 INFO L82 GeneralOperation]: Start removeDead. Operand has 118 places, 112 transitions, 240 flow [2023-08-27 06:32:12,455 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 107 places, 101 transitions, 214 flow [2023-08-27 06:32:12,457 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 06:32:12,463 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 107 places, 101 transitions, 214 flow [2023-08-27 06:32:12,464 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 107 places, 101 transitions, 214 flow [2023-08-27 06:32:12,465 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 107 places, 101 transitions, 214 flow [2023-08-27 06:32:12,489 INFO L124 PetriNetUnfolderBase]: 1/101 cut-off events. [2023-08-27 06:32:12,489 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-27 06:32:12,489 INFO L83 FinitePrefix]: Finished finitePrefix Result has 110 conditions, 101 events. 1/101 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 139 event pairs, 0 based on Foata normal form. 0/74 useless extension candidates. Maximal degree in co-relation 32. Up to 2 conditions per place. [2023-08-27 06:32:12,490 INFO L119 LiptonReduction]: Number of co-enabled transitions 900 [2023-08-27 06:32:21,540 INFO L134 LiptonReduction]: Checked pairs total: 884 [2023-08-27 06:32:21,542 INFO L136 LiptonReduction]: Total number of compositions: 69 [2023-08-27 06:32:21,551 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-27 06:32:21,555 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;@1e6f869e, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 06:32:21,555 INFO L358 AbstractCegarLoop]: Starting to check reachability of 53 error locations. [2023-08-27 06:32:21,557 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 06:32:21,557 INFO L124 PetriNetUnfolderBase]: 0/2 cut-off events. [2023-08-27 06:32:21,557 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 06:32:21,557 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:32:21,557 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-27 06:32:21,557 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2023-08-27 06:32:21,560 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:32:21,560 INFO L85 PathProgramCache]: Analyzing trace with hash 873460, now seen corresponding path program 1 times [2023-08-27 06:32:21,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:32:21,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530784114] [2023-08-27 06:32:21,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:32:21,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:32:21,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:32:21,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 06:32:21,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:32:21,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1530784114] [2023-08-27 06:32:21,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1530784114] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 06:32:21,728 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 06:32:21,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 06:32:21,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356036315] [2023-08-27 06:32:21,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 06:32:21,734 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-27 06:32:21,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:32:21,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-27 06:32:21,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-27 06:32:21,754 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 181 [2023-08-27 06:32:21,755 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 37 transitions, 86 flow. Second operand has 2 states, 2 states have (on average 79.5) internal successors, (159), 2 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:32:21,755 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:32:21,755 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 181 [2023-08-27 06:32:21,756 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:32:22,018 INFO L124 PetriNetUnfolderBase]: 297/540 cut-off events. [2023-08-27 06:32:22,018 INFO L125 PetriNetUnfolderBase]: For 11/11 co-relation queries the response was YES. [2023-08-27 06:32:22,020 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1117 conditions, 540 events. 297/540 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 2740 event pairs, 297 based on Foata normal form. 0/188 useless extension candidates. Maximal degree in co-relation 1016. Up to 541 conditions per place. [2023-08-27 06:32:22,025 INFO L140 encePairwiseOnDemand]: 171/181 looper letters, 27 selfloop transitions, 0 changer transitions 0/27 dead transitions. [2023-08-27 06:32:22,025 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 27 transitions, 120 flow [2023-08-27 06:32:22,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-27 06:32:22,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-27 06:32:22,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 193 transitions. [2023-08-27 06:32:22,036 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5331491712707183 [2023-08-27 06:32:22,036 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 193 transitions. [2023-08-27 06:32:22,036 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 193 transitions. [2023-08-27 06:32:22,037 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 06:32:22,039 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 193 transitions. [2023-08-27 06:32:22,043 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 96.5) internal successors, (193), 2 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:32:22,045 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 181.0) internal successors, (543), 3 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:32:22,046 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 181.0) internal successors, (543), 3 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:32:22,047 INFO L175 Difference]: Start difference. First operand has 44 places, 37 transitions, 86 flow. Second operand 2 states and 193 transitions. [2023-08-27 06:32:22,047 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 27 transitions, 120 flow [2023-08-27 06:32:22,050 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 27 transitions, 112 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-27 06:32:22,050 INFO L231 Difference]: Finished difference. Result has 31 places, 27 transitions, 58 flow [2023-08-27 06:32:22,052 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=58, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=58, PETRI_PLACES=31, PETRI_TRANSITIONS=27} [2023-08-27 06:32:22,054 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, -13 predicate places. [2023-08-27 06:32:22,054 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 27 transitions, 58 flow [2023-08-27 06:32:22,054 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 79.5) internal successors, (159), 2 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:32:22,054 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:32:22,054 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-27 06:32:22,054 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-27 06:32:22,055 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2023-08-27 06:32:22,055 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:32:22,055 INFO L85 PathProgramCache]: Analyzing trace with hash 873461, now seen corresponding path program 1 times [2023-08-27 06:32:22,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:32:22,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041088565] [2023-08-27 06:32:22,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:32:22,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:32:22,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:32:22,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 06:32:22,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:32:22,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2041088565] [2023-08-27 06:32:22,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2041088565] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 06:32:22,125 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 06:32:22,125 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 06:32:22,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316605087] [2023-08-27 06:32:22,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 06:32:22,126 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 06:32:22,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:32:22,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 06:32:22,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 06:32:22,127 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 181 [2023-08-27 06:32:22,127 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 27 transitions, 58 flow. Second operand has 3 states, 3 states have (on average 77.0) internal successors, (231), 3 states have internal predecessors, (231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:32:22,127 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:32:22,127 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 181 [2023-08-27 06:32:22,127 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:32:22,354 INFO L124 PetriNetUnfolderBase]: 240/441 cut-off events. [2023-08-27 06:32:22,354 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 06:32:22,355 INFO L83 FinitePrefix]: Finished finitePrefix Result has 895 conditions, 441 events. 240/441 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 81. Compared 2150 event pairs, 240 based on Foata normal form. 0/161 useless extension candidates. Maximal degree in co-relation 892. Up to 441 conditions per place. [2023-08-27 06:32:22,356 INFO L140 encePairwiseOnDemand]: 178/181 looper letters, 24 selfloop transitions, 1 changer transitions 0/25 dead transitions. [2023-08-27 06:32:22,356 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 25 transitions, 104 flow [2023-08-27 06:32:22,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 06:32:22,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 06:32:22,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 255 transitions. [2023-08-27 06:32:22,358 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4696132596685083 [2023-08-27 06:32:22,359 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 255 transitions. [2023-08-27 06:32:22,359 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 255 transitions. [2023-08-27 06:32:22,359 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 06:32:22,359 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 255 transitions. [2023-08-27 06:32:22,360 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 85.0) internal successors, (255), 3 states have internal predecessors, (255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:32:22,361 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 181.0) internal successors, (724), 4 states have internal predecessors, (724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:32:22,361 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 181.0) internal successors, (724), 4 states have internal predecessors, (724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:32:22,361 INFO L175 Difference]: Start difference. First operand has 31 places, 27 transitions, 58 flow. Second operand 3 states and 255 transitions. [2023-08-27 06:32:22,361 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 25 transitions, 104 flow [2023-08-27 06:32:22,361 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 25 transitions, 104 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-27 06:32:22,362 INFO L231 Difference]: Finished difference. Result has 31 places, 25 transitions, 56 flow [2023-08-27 06:32:22,362 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=54, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=56, PETRI_PLACES=31, PETRI_TRANSITIONS=25} [2023-08-27 06:32:22,362 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, -13 predicate places. [2023-08-27 06:32:22,363 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 25 transitions, 56 flow [2023-08-27 06:32:22,363 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 77.0) internal successors, (231), 3 states have internal predecessors, (231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:32:22,363 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:32:22,364 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-27 06:32:22,365 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-27 06:32:22,366 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2023-08-27 06:32:22,368 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:32:22,368 INFO L85 PathProgramCache]: Analyzing trace with hash 873462, now seen corresponding path program 1 times [2023-08-27 06:32:22,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:32:22,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501877006] [2023-08-27 06:32:22,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:32:22,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:32:22,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:32:22,426 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 06:32:22,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:32:22,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1501877006] [2023-08-27 06:32:22,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1501877006] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 06:32:22,427 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 06:32:22,428 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 06:32:22,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890300952] [2023-08-27 06:32:22,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 06:32:22,428 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 06:32:22,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:32:22,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 06:32:22,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 06:32:22,429 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 181 [2023-08-27 06:32:22,430 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 25 transitions, 56 flow. Second operand has 3 states, 3 states have (on average 77.0) internal successors, (231), 3 states have internal predecessors, (231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:32:22,430 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:32:22,430 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 181 [2023-08-27 06:32:22,430 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:32:22,593 INFO L124 PetriNetUnfolderBase]: 189/352 cut-off events. [2023-08-27 06:32:22,593 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 06:32:22,593 INFO L83 FinitePrefix]: Finished finitePrefix Result has 718 conditions, 352 events. 189/352 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 1602 event pairs, 189 based on Foata normal form. 0/136 useless extension candidates. Maximal degree in co-relation 714. Up to 352 conditions per place. [2023-08-27 06:32:22,595 INFO L140 encePairwiseOnDemand]: 178/181 looper letters, 22 selfloop transitions, 1 changer transitions 0/23 dead transitions. [2023-08-27 06:32:22,595 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 23 transitions, 98 flow [2023-08-27 06:32:22,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 06:32:22,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 06:32:22,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 253 transitions. [2023-08-27 06:32:22,596 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46593001841620624 [2023-08-27 06:32:22,596 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 253 transitions. [2023-08-27 06:32:22,596 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 253 transitions. [2023-08-27 06:32:22,596 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 06:32:22,596 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 253 transitions. [2023-08-27 06:32:22,597 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 84.33333333333333) internal successors, (253), 3 states have internal predecessors, (253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:32:22,598 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 181.0) internal successors, (724), 4 states have internal predecessors, (724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:32:22,598 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 181.0) internal successors, (724), 4 states have internal predecessors, (724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:32:22,598 INFO L175 Difference]: Start difference. First operand has 31 places, 25 transitions, 56 flow. Second operand 3 states and 253 transitions. [2023-08-27 06:32:22,598 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 23 transitions, 98 flow [2023-08-27 06:32:22,599 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 23 transitions, 97 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 06:32:22,599 INFO L231 Difference]: Finished difference. Result has 30 places, 23 transitions, 53 flow [2023-08-27 06:32:22,599 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=51, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=53, PETRI_PLACES=30, PETRI_TRANSITIONS=23} [2023-08-27 06:32:22,600 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, -14 predicate places. [2023-08-27 06:32:22,600 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 23 transitions, 53 flow [2023-08-27 06:32:22,600 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 77.0) internal successors, (231), 3 states have internal predecessors, (231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:32:22,600 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:32:22,600 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-27 06:32:22,600 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-27 06:32:22,600 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2023-08-27 06:32:22,601 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:32:22,601 INFO L85 PathProgramCache]: Analyzing trace with hash 873464, now seen corresponding path program 1 times [2023-08-27 06:32:22,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:32:22,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140700647] [2023-08-27 06:32:22,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:32:22,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:32:22,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:32:22,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 06:32:22,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:32:22,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140700647] [2023-08-27 06:32:22,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1140700647] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 06:32:22,790 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 06:32:22,790 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 06:32:22,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119479558] [2023-08-27 06:32:22,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 06:32:22,790 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 06:32:22,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:32:22,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 06:32:22,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 06:32:22,791 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 181 [2023-08-27 06:32:22,792 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 23 transitions, 53 flow. Second operand has 3 states, 3 states have (on average 77.0) internal successors, (231), 3 states have internal predecessors, (231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:32:22,792 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:32:22,792 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 181 [2023-08-27 06:32:22,792 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:32:22,923 INFO L124 PetriNetUnfolderBase]: 144/273 cut-off events. [2023-08-27 06:32:22,923 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 06:32:22,924 INFO L83 FinitePrefix]: Finished finitePrefix Result has 560 conditions, 273 events. 144/273 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 1162 event pairs, 144 based on Foata normal form. 0/113 useless extension candidates. Maximal degree in co-relation 556. Up to 273 conditions per place. [2023-08-27 06:32:22,925 INFO L140 encePairwiseOnDemand]: 178/181 looper letters, 20 selfloop transitions, 1 changer transitions 0/21 dead transitions. [2023-08-27 06:32:22,925 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 21 transitions, 91 flow [2023-08-27 06:32:22,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 06:32:22,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 06:32:22,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 251 transitions. [2023-08-27 06:32:22,926 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4622467771639042 [2023-08-27 06:32:22,926 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 251 transitions. [2023-08-27 06:32:22,926 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 251 transitions. [2023-08-27 06:32:22,926 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 06:32:22,926 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 251 transitions. [2023-08-27 06:32:22,926 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 83.66666666666667) internal successors, (251), 3 states have internal predecessors, (251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:32:22,927 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 181.0) internal successors, (724), 4 states have internal predecessors, (724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:32:22,928 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 181.0) internal successors, (724), 4 states have internal predecessors, (724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:32:22,928 INFO L175 Difference]: Start difference. First operand has 30 places, 23 transitions, 53 flow. Second operand 3 states and 251 transitions. [2023-08-27 06:32:22,928 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 21 transitions, 91 flow [2023-08-27 06:32:22,928 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 21 transitions, 90 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 06:32:22,928 INFO L231 Difference]: Finished difference. Result has 29 places, 21 transitions, 50 flow [2023-08-27 06:32:22,929 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=48, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=50, PETRI_PLACES=29, PETRI_TRANSITIONS=21} [2023-08-27 06:32:22,929 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, -15 predicate places. [2023-08-27 06:32:22,929 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 21 transitions, 50 flow [2023-08-27 06:32:22,929 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 77.0) internal successors, (231), 3 states have internal predecessors, (231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:32:22,929 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:32:22,929 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-27 06:32:22,930 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-27 06:32:22,930 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2023-08-27 06:32:22,930 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:32:22,930 INFO L85 PathProgramCache]: Analyzing trace with hash 873465, now seen corresponding path program 1 times [2023-08-27 06:32:22,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:32:22,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1761855324] [2023-08-27 06:32:22,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:32:22,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:32:22,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:32:23,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 06:32:23,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:32:23,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1761855324] [2023-08-27 06:32:23,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1761855324] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 06:32:23,083 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 06:32:23,083 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 06:32:23,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394324300] [2023-08-27 06:32:23,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 06:32:23,084 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 06:32:23,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:32:23,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 06:32:23,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 06:32:23,085 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 181 [2023-08-27 06:32:23,085 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 21 transitions, 50 flow. Second operand has 3 states, 3 states have (on average 77.0) internal successors, (231), 3 states have internal predecessors, (231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:32:23,087 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:32:23,087 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 181 [2023-08-27 06:32:23,087 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:32:23,198 INFO L124 PetriNetUnfolderBase]: 105/204 cut-off events. [2023-08-27 06:32:23,198 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 06:32:23,198 INFO L83 FinitePrefix]: Finished finitePrefix Result has 422 conditions, 204 events. 105/204 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 801 event pairs, 105 based on Foata normal form. 0/92 useless extension candidates. Maximal degree in co-relation 418. Up to 204 conditions per place. [2023-08-27 06:32:23,199 INFO L140 encePairwiseOnDemand]: 178/181 looper letters, 18 selfloop transitions, 1 changer transitions 0/19 dead transitions. [2023-08-27 06:32:23,199 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 19 transitions, 84 flow [2023-08-27 06:32:23,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 06:32:23,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 06:32:23,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 249 transitions. [2023-08-27 06:32:23,200 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4585635359116022 [2023-08-27 06:32:23,200 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 249 transitions. [2023-08-27 06:32:23,200 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 249 transitions. [2023-08-27 06:32:23,200 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 06:32:23,200 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 249 transitions. [2023-08-27 06:32:23,201 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 83.0) internal successors, (249), 3 states have internal predecessors, (249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:32:23,201 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 181.0) internal successors, (724), 4 states have internal predecessors, (724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:32:23,202 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 181.0) internal successors, (724), 4 states have internal predecessors, (724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:32:23,202 INFO L175 Difference]: Start difference. First operand has 29 places, 21 transitions, 50 flow. Second operand 3 states and 249 transitions. [2023-08-27 06:32:23,202 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 19 transitions, 84 flow [2023-08-27 06:32:23,202 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 19 transitions, 83 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 06:32:23,202 INFO L231 Difference]: Finished difference. Result has 28 places, 19 transitions, 47 flow [2023-08-27 06:32:23,202 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=45, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=47, PETRI_PLACES=28, PETRI_TRANSITIONS=19} [2023-08-27 06:32:23,203 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, -16 predicate places. [2023-08-27 06:32:23,203 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 19 transitions, 47 flow [2023-08-27 06:32:23,203 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 77.0) internal successors, (231), 3 states have internal predecessors, (231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:32:23,203 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:32:23,203 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-27 06:32:23,203 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-27 06:32:23,204 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2023-08-27 06:32:23,204 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:32:23,204 INFO L85 PathProgramCache]: Analyzing trace with hash 873467, now seen corresponding path program 1 times [2023-08-27 06:32:23,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:32:23,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294153648] [2023-08-27 06:32:23,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:32:23,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:32:23,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:32:23,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 06:32:23,280 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:32:23,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1294153648] [2023-08-27 06:32:23,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1294153648] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 06:32:23,280 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 06:32:23,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 06:32:23,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646801896] [2023-08-27 06:32:23,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 06:32:23,280 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 06:32:23,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:32:23,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 06:32:23,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 06:32:23,282 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 181 [2023-08-27 06:32:23,282 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 19 transitions, 47 flow. Second operand has 3 states, 3 states have (on average 77.0) internal successors, (231), 3 states have internal predecessors, (231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:32:23,282 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:32:23,282 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 181 [2023-08-27 06:32:23,283 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:32:23,371 INFO L124 PetriNetUnfolderBase]: 72/145 cut-off events. [2023-08-27 06:32:23,371 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 06:32:23,372 INFO L83 FinitePrefix]: Finished finitePrefix Result has 304 conditions, 145 events. 72/145 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 506 event pairs, 72 based on Foata normal form. 0/73 useless extension candidates. Maximal degree in co-relation 300. Up to 145 conditions per place. [2023-08-27 06:32:23,373 INFO L140 encePairwiseOnDemand]: 178/181 looper letters, 16 selfloop transitions, 1 changer transitions 0/17 dead transitions. [2023-08-27 06:32:23,373 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 17 transitions, 77 flow [2023-08-27 06:32:23,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 06:32:23,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 06:32:23,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 247 transitions. [2023-08-27 06:32:23,374 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4548802946593002 [2023-08-27 06:32:23,374 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 247 transitions. [2023-08-27 06:32:23,374 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 247 transitions. [2023-08-27 06:32:23,374 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 06:32:23,374 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 247 transitions. [2023-08-27 06:32:23,374 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 82.33333333333333) internal successors, (247), 3 states have internal predecessors, (247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:32:23,376 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 181.0) internal successors, (724), 4 states have internal predecessors, (724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:32:23,376 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 181.0) internal successors, (724), 4 states have internal predecessors, (724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:32:23,376 INFO L175 Difference]: Start difference. First operand has 28 places, 19 transitions, 47 flow. Second operand 3 states and 247 transitions. [2023-08-27 06:32:23,376 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 17 transitions, 77 flow [2023-08-27 06:32:23,376 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 17 transitions, 76 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 06:32:23,377 INFO L231 Difference]: Finished difference. Result has 27 places, 17 transitions, 44 flow [2023-08-27 06:32:23,377 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=44, PETRI_PLACES=27, PETRI_TRANSITIONS=17} [2023-08-27 06:32:23,380 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, -17 predicate places. [2023-08-27 06:32:23,383 INFO L495 AbstractCegarLoop]: Abstraction has has 27 places, 17 transitions, 44 flow [2023-08-27 06:32:23,383 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 77.0) internal successors, (231), 3 states have internal predecessors, (231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:32:23,383 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:32:23,383 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-27 06:32:23,384 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-27 06:32:23,384 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2023-08-27 06:32:23,384 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:32:23,384 INFO L85 PathProgramCache]: Analyzing trace with hash 873468, now seen corresponding path program 1 times [2023-08-27 06:32:23,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:32:23,385 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380659520] [2023-08-27 06:32:23,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:32:23,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:32:23,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:32:23,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 06:32:23,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:32:23,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1380659520] [2023-08-27 06:32:23,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1380659520] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 06:32:23,457 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 06:32:23,457 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 06:32:23,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042860336] [2023-08-27 06:32:23,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 06:32:23,457 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 06:32:23,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:32:23,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 06:32:23,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 06:32:23,458 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 181 [2023-08-27 06:32:23,458 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 17 transitions, 44 flow. Second operand has 3 states, 3 states have (on average 77.0) internal successors, (231), 3 states have internal predecessors, (231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:32:23,458 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:32:23,458 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 181 [2023-08-27 06:32:23,458 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:32:23,521 INFO L124 PetriNetUnfolderBase]: 45/96 cut-off events. [2023-08-27 06:32:23,521 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 06:32:23,522 INFO L83 FinitePrefix]: Finished finitePrefix Result has 206 conditions, 96 events. 45/96 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 281 event pairs, 45 based on Foata normal form. 0/56 useless extension candidates. Maximal degree in co-relation 202. Up to 96 conditions per place. [2023-08-27 06:32:23,522 INFO L140 encePairwiseOnDemand]: 178/181 looper letters, 14 selfloop transitions, 1 changer transitions 0/15 dead transitions. [2023-08-27 06:32:23,522 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 15 transitions, 70 flow [2023-08-27 06:32:23,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 06:32:23,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 06:32:23,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 245 transitions. [2023-08-27 06:32:23,523 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45119705340699817 [2023-08-27 06:32:23,523 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 245 transitions. [2023-08-27 06:32:23,523 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 245 transitions. [2023-08-27 06:32:23,524 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 06:32:23,524 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 245 transitions. [2023-08-27 06:32:23,524 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 81.66666666666667) internal successors, (245), 3 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:32:23,525 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 181.0) internal successors, (724), 4 states have internal predecessors, (724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:32:23,526 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 181.0) internal successors, (724), 4 states have internal predecessors, (724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:32:23,526 INFO L175 Difference]: Start difference. First operand has 27 places, 17 transitions, 44 flow. Second operand 3 states and 245 transitions. [2023-08-27 06:32:23,526 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 15 transitions, 70 flow [2023-08-27 06:32:23,526 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 15 transitions, 69 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 06:32:23,526 INFO L231 Difference]: Finished difference. Result has 26 places, 15 transitions, 41 flow [2023-08-27 06:32:23,526 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=39, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=15, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=41, PETRI_PLACES=26, PETRI_TRANSITIONS=15} [2023-08-27 06:32:23,527 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, -18 predicate places. [2023-08-27 06:32:23,528 INFO L495 AbstractCegarLoop]: Abstraction has has 26 places, 15 transitions, 41 flow [2023-08-27 06:32:23,528 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 77.0) internal successors, (231), 3 states have internal predecessors, (231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:32:23,528 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:32:23,528 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-27 06:32:23,528 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-27 06:32:23,528 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2023-08-27 06:32:23,528 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:32:23,528 INFO L85 PathProgramCache]: Analyzing trace with hash 873470, now seen corresponding path program 1 times [2023-08-27 06:32:23,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:32:23,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286937526] [2023-08-27 06:32:23,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:32:23,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:32:23,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:32:23,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 06:32:23,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:32:23,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286937526] [2023-08-27 06:32:23,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1286937526] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 06:32:23,691 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 06:32:23,691 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 06:32:23,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649480748] [2023-08-27 06:32:23,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 06:32:23,691 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 06:32:23,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:32:23,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 06:32:23,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 06:32:23,692 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 181 [2023-08-27 06:32:23,692 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 15 transitions, 41 flow. Second operand has 3 states, 3 states have (on average 77.0) internal successors, (231), 3 states have internal predecessors, (231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:32:23,692 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:32:23,692 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 181 [2023-08-27 06:32:23,692 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:32:23,732 INFO L124 PetriNetUnfolderBase]: 24/57 cut-off events. [2023-08-27 06:32:23,732 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 06:32:23,733 INFO L83 FinitePrefix]: Finished finitePrefix Result has 128 conditions, 57 events. 24/57 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 123 event pairs, 24 based on Foata normal form. 0/41 useless extension candidates. Maximal degree in co-relation 124. Up to 57 conditions per place. [2023-08-27 06:32:23,733 INFO L140 encePairwiseOnDemand]: 178/181 looper letters, 12 selfloop transitions, 1 changer transitions 0/13 dead transitions. [2023-08-27 06:32:23,733 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 13 transitions, 63 flow [2023-08-27 06:32:23,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 06:32:23,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 06:32:23,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 243 transitions. [2023-08-27 06:32:23,734 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44751381215469616 [2023-08-27 06:32:23,734 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 243 transitions. [2023-08-27 06:32:23,734 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 243 transitions. [2023-08-27 06:32:23,734 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 06:32:23,734 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 243 transitions. [2023-08-27 06:32:23,735 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 81.0) internal successors, (243), 3 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:32:23,735 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 181.0) internal successors, (724), 4 states have internal predecessors, (724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:32:23,735 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 181.0) internal successors, (724), 4 states have internal predecessors, (724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:32:23,735 INFO L175 Difference]: Start difference. First operand has 26 places, 15 transitions, 41 flow. Second operand 3 states and 243 transitions. [2023-08-27 06:32:23,735 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 13 transitions, 63 flow [2023-08-27 06:32:23,736 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 13 transitions, 62 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 06:32:23,736 INFO L231 Difference]: Finished difference. Result has 25 places, 13 transitions, 38 flow [2023-08-27 06:32:23,736 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=36, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=13, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=38, PETRI_PLACES=25, PETRI_TRANSITIONS=13} [2023-08-27 06:32:23,736 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, -19 predicate places. [2023-08-27 06:32:23,736 INFO L495 AbstractCegarLoop]: Abstraction has has 25 places, 13 transitions, 38 flow [2023-08-27 06:32:23,737 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 77.0) internal successors, (231), 3 states have internal predecessors, (231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:32:23,737 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:32:23,737 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-27 06:32:23,737 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-27 06:32:23,737 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2023-08-27 06:32:23,737 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:32:23,737 INFO L85 PathProgramCache]: Analyzing trace with hash 873471, now seen corresponding path program 1 times [2023-08-27 06:32:23,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:32:23,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151061294] [2023-08-27 06:32:23,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:32:23,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:32:23,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:32:23,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 06:32:23,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:32:23,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151061294] [2023-08-27 06:32:23,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1151061294] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 06:32:23,924 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 06:32:23,924 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 06:32:23,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285542667] [2023-08-27 06:32:23,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 06:32:23,924 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 06:32:23,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:32:23,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 06:32:23,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 06:32:23,925 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 181 [2023-08-27 06:32:23,925 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 13 transitions, 38 flow. Second operand has 3 states, 3 states have (on average 77.0) internal successors, (231), 3 states have internal predecessors, (231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:32:23,925 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:32:23,925 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 181 [2023-08-27 06:32:23,925 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:32:23,956 INFO L124 PetriNetUnfolderBase]: 9/28 cut-off events. [2023-08-27 06:32:23,956 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 06:32:23,956 INFO L83 FinitePrefix]: Finished finitePrefix Result has 70 conditions, 28 events. 9/28 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 31 event pairs, 9 based on Foata normal form. 0/28 useless extension candidates. Maximal degree in co-relation 66. Up to 28 conditions per place. [2023-08-27 06:32:23,956 INFO L140 encePairwiseOnDemand]: 178/181 looper letters, 10 selfloop transitions, 1 changer transitions 0/11 dead transitions. [2023-08-27 06:32:23,956 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 11 transitions, 56 flow [2023-08-27 06:32:23,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 06:32:23,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 06:32:23,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 241 transitions. [2023-08-27 06:32:23,958 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4438305709023941 [2023-08-27 06:32:23,958 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 241 transitions. [2023-08-27 06:32:23,958 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 241 transitions. [2023-08-27 06:32:23,958 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 06:32:23,958 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 241 transitions. [2023-08-27 06:32:23,958 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 80.33333333333333) internal successors, (241), 3 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:32:23,959 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 181.0) internal successors, (724), 4 states have internal predecessors, (724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:32:23,959 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 181.0) internal successors, (724), 4 states have internal predecessors, (724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:32:23,959 INFO L175 Difference]: Start difference. First operand has 25 places, 13 transitions, 38 flow. Second operand 3 states and 241 transitions. [2023-08-27 06:32:23,959 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 11 transitions, 56 flow [2023-08-27 06:32:23,960 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 11 transitions, 55 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 06:32:23,960 INFO L231 Difference]: Finished difference. Result has 24 places, 11 transitions, 35 flow [2023-08-27 06:32:23,960 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=33, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=11, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=35, PETRI_PLACES=24, PETRI_TRANSITIONS=11} [2023-08-27 06:32:23,960 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, -20 predicate places. [2023-08-27 06:32:23,960 INFO L495 AbstractCegarLoop]: Abstraction has has 24 places, 11 transitions, 35 flow [2023-08-27 06:32:23,961 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 77.0) internal successors, (231), 3 states have internal predecessors, (231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:32:23,961 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:32:23,961 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 06:32:23,961 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-27 06:32:23,961 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2023-08-27 06:32:23,961 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:32:23,961 INFO L85 PathProgramCache]: Analyzing trace with hash 763211825, now seen corresponding path program 1 times [2023-08-27 06:32:23,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:32:23,962 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532000510] [2023-08-27 06:32:23,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:32:23,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:32:24,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:32:25,922 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 06:32:25,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:32:25,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532000510] [2023-08-27 06:32:25,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1532000510] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 06:32:25,925 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 06:32:25,925 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-27 06:32:25,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008621680] [2023-08-27 06:32:25,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 06:32:25,925 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-27 06:32:25,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:32:25,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-27 06:32:25,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-27 06:32:25,926 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 181 [2023-08-27 06:32:25,926 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 11 transitions, 35 flow. Second operand has 4 states, 4 states have (on average 65.75) internal successors, (263), 4 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:32:25,927 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:32:25,927 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 181 [2023-08-27 06:32:25,927 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:32:26,060 INFO L124 PetriNetUnfolderBase]: 8/32 cut-off events. [2023-08-27 06:32:26,060 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-08-27 06:32:26,060 INFO L83 FinitePrefix]: Finished finitePrefix Result has 79 conditions, 32 events. 8/32 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 59 event pairs, 1 based on Foata normal form. 1/33 useless extension candidates. Maximal degree in co-relation 75. Up to 16 conditions per place. [2023-08-27 06:32:26,060 INFO L140 encePairwiseOnDemand]: 178/181 looper letters, 11 selfloop transitions, 1 changer transitions 7/19 dead transitions. [2023-08-27 06:32:26,060 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 19 transitions, 92 flow [2023-08-27 06:32:26,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-27 06:32:26,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-27 06:32:26,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 272 transitions. [2023-08-27 06:32:26,062 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3756906077348066 [2023-08-27 06:32:26,062 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 272 transitions. [2023-08-27 06:32:26,062 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 272 transitions. [2023-08-27 06:32:26,062 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 06:32:26,062 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 272 transitions. [2023-08-27 06:32:26,062 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 68.0) internal successors, (272), 4 states have internal predecessors, (272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:32:26,063 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 181.0) internal successors, (905), 5 states have internal predecessors, (905), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:32:26,063 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 181.0) internal successors, (905), 5 states have internal predecessors, (905), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:32:26,064 INFO L175 Difference]: Start difference. First operand has 24 places, 11 transitions, 35 flow. Second operand 4 states and 272 transitions. [2023-08-27 06:32:26,064 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 19 transitions, 92 flow [2023-08-27 06:32:26,064 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 19 transitions, 91 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 06:32:26,064 INFO L231 Difference]: Finished difference. Result has 28 places, 11 transitions, 41 flow [2023-08-27 06:32:26,065 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=34, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=11, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=41, PETRI_PLACES=28, PETRI_TRANSITIONS=11} [2023-08-27 06:32:26,065 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, -16 predicate places. [2023-08-27 06:32:26,065 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 11 transitions, 41 flow [2023-08-27 06:32:26,065 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 65.75) internal successors, (263), 4 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:32:26,066 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 06:32:26,066 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 06:32:26,066 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-27 06:32:26,066 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2023-08-27 06:32:26,066 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 06:32:26,066 INFO L85 PathProgramCache]: Analyzing trace with hash -1442074799, now seen corresponding path program 2 times [2023-08-27 06:32:26,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 06:32:26,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098992173] [2023-08-27 06:32:26,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 06:32:26,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 06:32:26,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 06:32:32,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 06:32:32,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 06:32:32,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098992173] [2023-08-27 06:32:32,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2098992173] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 06:32:32,025 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 06:32:32,025 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-27 06:32:32,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36409451] [2023-08-27 06:32:32,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 06:32:32,026 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-27 06:32:32,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 06:32:32,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-27 06:32:32,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-27 06:32:32,026 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 181 [2023-08-27 06:32:32,027 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 11 transitions, 41 flow. Second operand has 4 states, 4 states have (on average 65.75) internal successors, (263), 4 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:32:32,027 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 06:32:32,027 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 181 [2023-08-27 06:32:32,027 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 06:32:32,119 INFO L124 PetriNetUnfolderBase]: 5/23 cut-off events. [2023-08-27 06:32:32,119 INFO L125 PetriNetUnfolderBase]: For 13/13 co-relation queries the response was YES. [2023-08-27 06:32:32,119 INFO L83 FinitePrefix]: Finished finitePrefix Result has 71 conditions, 23 events. 5/23 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 27 event pairs, 3 based on Foata normal form. 1/24 useless extension candidates. Maximal degree in co-relation 65. Up to 15 conditions per place. [2023-08-27 06:32:32,119 INFO L140 encePairwiseOnDemand]: 178/181 looper letters, 0 selfloop transitions, 0 changer transitions 15/15 dead transitions. [2023-08-27 06:32:32,119 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 15 transitions, 81 flow [2023-08-27 06:32:32,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-27 06:32:32,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-27 06:32:32,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 268 transitions. [2023-08-27 06:32:32,122 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3701657458563536 [2023-08-27 06:32:32,122 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 268 transitions. [2023-08-27 06:32:32,122 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 268 transitions. [2023-08-27 06:32:32,122 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 06:32:32,122 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 268 transitions. [2023-08-27 06:32:32,124 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 67.0) internal successors, (268), 4 states have internal predecessors, (268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:32:32,125 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 181.0) internal successors, (905), 5 states have internal predecessors, (905), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:32:32,126 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 181.0) internal successors, (905), 5 states have internal predecessors, (905), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:32:32,126 INFO L175 Difference]: Start difference. First operand has 28 places, 11 transitions, 41 flow. Second operand 4 states and 268 transitions. [2023-08-27 06:32:32,126 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 15 transitions, 81 flow [2023-08-27 06:32:32,126 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 15 transitions, 79 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 06:32:32,126 INFO L231 Difference]: Finished difference. Result has 28 places, 0 transitions, 0 flow [2023-08-27 06:32:32,126 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=36, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=10, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=28, PETRI_TRANSITIONS=0} [2023-08-27 06:32:32,127 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, -16 predicate places. [2023-08-27 06:32:32,127 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 0 transitions, 0 flow [2023-08-27 06:32:32,127 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 65.75) internal successors, (263), 4 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 06:32:32,129 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (52 of 53 remaining) [2023-08-27 06:32:32,129 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (51 of 53 remaining) [2023-08-27 06:32:32,133 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (50 of 53 remaining) [2023-08-27 06:32:32,133 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (49 of 53 remaining) [2023-08-27 06:32:32,133 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (48 of 53 remaining) [2023-08-27 06:32:32,133 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (47 of 53 remaining) [2023-08-27 06:32:32,133 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (46 of 53 remaining) [2023-08-27 06:32:32,133 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (45 of 53 remaining) [2023-08-27 06:32:32,133 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (44 of 53 remaining) [2023-08-27 06:32:32,133 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (43 of 53 remaining) [2023-08-27 06:32:32,133 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (42 of 53 remaining) [2023-08-27 06:32:32,133 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (41 of 53 remaining) [2023-08-27 06:32:32,133 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (40 of 53 remaining) [2023-08-27 06:32:32,133 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (39 of 53 remaining) [2023-08-27 06:32:32,134 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (38 of 53 remaining) [2023-08-27 06:32:32,134 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (37 of 53 remaining) [2023-08-27 06:32:32,134 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (36 of 53 remaining) [2023-08-27 06:32:32,134 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (35 of 53 remaining) [2023-08-27 06:32:32,134 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (34 of 53 remaining) [2023-08-27 06:32:32,134 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (33 of 53 remaining) [2023-08-27 06:32:32,134 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (32 of 53 remaining) [2023-08-27 06:32:32,134 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (31 of 53 remaining) [2023-08-27 06:32:32,134 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (30 of 53 remaining) [2023-08-27 06:32:32,134 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 53 remaining) [2023-08-27 06:32:32,134 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 53 remaining) [2023-08-27 06:32:32,134 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 53 remaining) [2023-08-27 06:32:32,134 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONASSERT (26 of 53 remaining) [2023-08-27 06:32:32,134 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (25 of 53 remaining) [2023-08-27 06:32:32,135 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (24 of 53 remaining) [2023-08-27 06:32:32,135 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 53 remaining) [2023-08-27 06:32:32,135 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 53 remaining) [2023-08-27 06:32:32,135 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 53 remaining) [2023-08-27 06:32:32,135 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 53 remaining) [2023-08-27 06:32:32,135 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 53 remaining) [2023-08-27 06:32:32,135 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 53 remaining) [2023-08-27 06:32:32,135 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 53 remaining) [2023-08-27 06:32:32,135 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 53 remaining) [2023-08-27 06:32:32,135 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 53 remaining) [2023-08-27 06:32:32,135 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 53 remaining) [2023-08-27 06:32:32,135 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 53 remaining) [2023-08-27 06:32:32,135 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 53 remaining) [2023-08-27 06:32:32,136 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 53 remaining) [2023-08-27 06:32:32,136 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 53 remaining) [2023-08-27 06:32:32,136 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 53 remaining) [2023-08-27 06:32:32,136 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 53 remaining) [2023-08-27 06:32:32,136 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 53 remaining) [2023-08-27 06:32:32,136 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 53 remaining) [2023-08-27 06:32:32,136 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 53 remaining) [2023-08-27 06:32:32,136 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 53 remaining) [2023-08-27 06:32:32,136 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 53 remaining) [2023-08-27 06:32:32,136 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 53 remaining) [2023-08-27 06:32:32,136 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 53 remaining) [2023-08-27 06:32:32,136 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 53 remaining) [2023-08-27 06:32:32,136 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-27 06:32:32,137 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 06:32:32,140 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-27 06:32:32,140 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-27 06:32:32,144 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.08 06:32:32 BasicIcfg [2023-08-27 06:32:32,144 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-27 06:32:32,145 INFO L158 Benchmark]: Toolchain (without parser) took 21383.33ms. Allocated memory was 362.8MB in the beginning and 1.4GB in the end (delta: 1.0GB). Free memory was 339.2MB in the beginning and 1.0GB in the end (delta: -686.6MB). Peak memory consumption was 340.3MB. Max. memory is 16.0GB. [2023-08-27 06:32:32,145 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 362.8MB. Free memory is still 339.3MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-27 06:32:32,145 INFO L158 Benchmark]: CACSL2BoogieTranslator took 223.02ms. Allocated memory is still 362.8MB. Free memory was 338.7MB in the beginning and 328.0MB in the end (delta: 10.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. [2023-08-27 06:32:32,145 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.15ms. Allocated memory is still 362.8MB. Free memory was 328.0MB in the beginning and 325.4MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. [2023-08-27 06:32:32,145 INFO L158 Benchmark]: Boogie Preprocessor took 23.40ms. Allocated memory is still 362.8MB. Free memory was 325.4MB in the beginning and 324.3MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-27 06:32:32,146 INFO L158 Benchmark]: RCFGBuilder took 1094.85ms. Allocated memory was 362.8MB in the beginning and 492.8MB in the end (delta: 130.0MB). Free memory was 323.8MB in the beginning and 381.6MB in the end (delta: -57.7MB). Peak memory consumption was 74.4MB. Max. memory is 16.0GB. [2023-08-27 06:32:32,146 INFO L158 Benchmark]: TraceAbstraction took 19991.32ms. Allocated memory was 492.8MB in the beginning and 1.4GB in the end (delta: 895.5MB). Free memory was 381.6MB in the beginning and 1.0GB in the end (delta: -644.3MB). Peak memory consumption was 251.2MB. Max. memory is 16.0GB. [2023-08-27 06:32:32,147 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 362.8MB. Free memory is still 339.3MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 223.02ms. Allocated memory is still 362.8MB. Free memory was 338.7MB in the beginning and 328.0MB in the end (delta: 10.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 44.15ms. Allocated memory is still 362.8MB. Free memory was 328.0MB in the beginning and 325.4MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. * Boogie Preprocessor took 23.40ms. Allocated memory is still 362.8MB. Free memory was 325.4MB in the beginning and 324.3MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.0GB. * RCFGBuilder took 1094.85ms. Allocated memory was 362.8MB in the beginning and 492.8MB in the end (delta: 130.0MB). Free memory was 323.8MB in the beginning and 381.6MB in the end (delta: -57.7MB). Peak memory consumption was 74.4MB. Max. memory is 16.0GB. * TraceAbstraction took 19991.32ms. Allocated memory was 492.8MB in the beginning and 1.4GB in the end (delta: 895.5MB). Free memory was 381.6MB in the beginning and 1.0GB in the end (delta: -644.3MB). Peak memory consumption was 251.2MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 9.1s, 107 PlacesBefore, 44 PlacesAfterwards, 101 TransitionsBefore, 37 TransitionsAfterwards, 900 CoEnabledTransitionPairs, 7 FixpointIterations, 54 TrivialSequentialCompositions, 11 ConcurrentSequentialCompositions, 3 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 69 TotalNumberOfCompositions, 884 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 884, independent: 884, independent conditional: 0, independent unconditional: 884, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 291, independent: 291, independent conditional: 0, independent unconditional: 291, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 884, independent: 593, independent conditional: 0, independent unconditional: 593, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 291, unknown conditional: 0, unknown unconditional: 291] , Statistics on independence cache: Total cache size (in pairs): 79, Positive cache size: 79, Positive conditional cache size: 0, Positive unconditional cache size: 79, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 86]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 86]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 87]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 87]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 88]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 88]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 86]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 86]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 87]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 87]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 88]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 88]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 86]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 86]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 87]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 87]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 88]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 88]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 86]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 86]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 87]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 87]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 88]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 88]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 79]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 79]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 21]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 146 locations, 53 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: 19.7s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 9.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 139 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 139 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 15 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 243 IncrementalHoareTripleChecker+Invalid, 258 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 15 mSolverCounterUnsat, 0 mSDtfsCounter, 243 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=86occurred in iteration=0, InterpolantAutomatonStates: 34, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 8.6s InterpolantComputationTime, 49 NumberOfCodeBlocks, 49 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 38 ConstructedInterpolants, 0 QuantifiedInterpolants, 677 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 27 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-27 06:32:32,167 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...