/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg true --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true -i ../../../trunk/examples/svcomp/weaver/chl-simpl-str-symm.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.empire-owicki-175f719-m [2023-11-30 08:51:05,628 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-30 08:51:05,687 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-NoLbe.epf [2023-11-30 08:51:05,716 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-30 08:51:05,716 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-30 08:51:05,717 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-30 08:51:05,717 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-30 08:51:05,717 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-30 08:51:05,718 INFO L153 SettingsManager]: * Use SBE=true [2023-11-30 08:51:05,720 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-30 08:51:05,721 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-30 08:51:05,721 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-30 08:51:05,721 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-30 08:51:05,722 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-30 08:51:05,722 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-30 08:51:05,722 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-30 08:51:05,722 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-30 08:51:05,722 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-30 08:51:05,722 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-30 08:51:05,723 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-30 08:51:05,723 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-30 08:51:05,723 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-30 08:51:05,723 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-30 08:51:05,724 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-11-30 08:51:05,724 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-30 08:51:05,725 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-30 08:51:05,725 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-30 08:51:05,725 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-30 08:51:05,725 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-30 08:51:05,725 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-30 08:51:05,726 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-30 08:51:05,726 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-30 08:51:05,726 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-30 08:51:05,726 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2023-11-30 08:51:05,873 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-30 08:51:05,885 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-30 08:51:05,887 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-30 08:51:05,888 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-30 08:51:05,888 INFO L274 PluginConnector]: CDTParser initialized [2023-11-30 08:51:05,889 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-simpl-str-symm.wvr.c [2023-11-30 08:51:06,832 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-30 08:51:06,974 INFO L384 CDTParser]: Found 1 translation units. [2023-11-30 08:51:06,975 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-simpl-str-symm.wvr.c [2023-11-30 08:51:06,982 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5941d9bc7/1514e04cc100464885b685441b2502c4/FLAGa59113792 [2023-11-30 08:51:06,990 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5941d9bc7/1514e04cc100464885b685441b2502c4 [2023-11-30 08:51:06,992 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-30 08:51:06,993 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-11-30 08:51:06,993 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-30 08:51:06,993 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-30 08:51:06,996 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-30 08:51:06,997 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 08:51:06" (1/1) ... [2023-11-30 08:51:06,998 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a409d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 08:51:06, skipping insertion in model container [2023-11-30 08:51:06,998 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 08:51:06" (1/1) ... [2023-11-30 08:51:07,017 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-30 08:51:07,130 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-30 08:51:07,136 INFO L202 MainTranslator]: Completed pre-run [2023-11-30 08:51:07,153 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-30 08:51:07,164 INFO L206 MainTranslator]: Completed translation [2023-11-30 08:51:07,164 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 08:51:07 WrapperNode [2023-11-30 08:51:07,164 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-30 08:51:07,165 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-30 08:51:07,165 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-30 08:51:07,165 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-30 08:51:07,170 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 08:51:07" (1/1) ... [2023-11-30 08:51:07,174 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 08:51:07" (1/1) ... [2023-11-30 08:51:07,190 INFO L138 Inliner]: procedures = 22, calls = 26, calls flagged for inlining = 10, calls inlined = 12, statements flattened = 157 [2023-11-30 08:51:07,190 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-30 08:51:07,191 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-30 08:51:07,191 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-30 08:51:07,191 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-30 08:51:07,197 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 08:51:07" (1/1) ... [2023-11-30 08:51:07,197 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 08:51:07" (1/1) ... [2023-11-30 08:51:07,199 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 08:51:07" (1/1) ... [2023-11-30 08:51:07,199 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 08:51:07" (1/1) ... [2023-11-30 08:51:07,203 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 08:51:07" (1/1) ... [2023-11-30 08:51:07,208 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 08:51:07" (1/1) ... [2023-11-30 08:51:07,209 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 08:51:07" (1/1) ... [2023-11-30 08:51:07,210 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 08:51:07" (1/1) ... [2023-11-30 08:51:07,212 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-30 08:51:07,212 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-30 08:51:07,212 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-30 08:51:07,212 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-30 08:51:07,213 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 08:51:07" (1/1) ... [2023-11-30 08:51:07,220 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-30 08:51:07,230 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 08:51:07,257 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-30 08:51:07,279 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-30 08:51:07,285 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-30 08:51:07,285 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-30 08:51:07,285 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-30 08:51:07,285 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-30 08:51:07,286 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-30 08:51:07,286 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-30 08:51:07,286 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-30 08:51:07,286 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-30 08:51:07,286 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-30 08:51:07,286 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-30 08:51:07,286 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-30 08:51:07,286 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-30 08:51:07,287 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-30 08:51:07,395 INFO L241 CfgBuilder]: Building ICFG [2023-11-30 08:51:07,398 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-30 08:51:07,704 INFO L282 CfgBuilder]: Performing block encoding [2023-11-30 08:51:07,716 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-30 08:51:07,716 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-30 08:51:07,718 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 08:51:07 BoogieIcfgContainer [2023-11-30 08:51:07,718 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-30 08:51:07,725 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-30 08:51:07,725 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-30 08:51:07,727 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-30 08:51:07,728 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 08:51:06" (1/3) ... [2023-11-30 08:51:07,728 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49dfe110 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 08:51:07, skipping insertion in model container [2023-11-30 08:51:07,728 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 08:51:07" (2/3) ... [2023-11-30 08:51:07,728 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49dfe110 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 08:51:07, skipping insertion in model container [2023-11-30 08:51:07,729 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 08:51:07" (3/3) ... [2023-11-30 08:51:07,729 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-simpl-str-symm.wvr.c [2023-11-30 08:51:07,741 INFO L197 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-30 08:51:07,741 INFO L156 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2023-11-30 08:51:07,741 INFO L508 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-30 08:51:07,822 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-30 08:51:07,848 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 206 places, 214 transitions, 442 flow [2023-11-30 08:51:07,895 INFO L124 PetriNetUnfolderBase]: 15/212 cut-off events. [2023-11-30 08:51:07,896 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-30 08:51:07,902 INFO L83 FinitePrefix]: Finished finitePrefix Result has 221 conditions, 212 events. 15/212 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 431 event pairs, 0 based on Foata normal form. 0/185 useless extension candidates. Maximal degree in co-relation 137. Up to 2 conditions per place. [2023-11-30 08:51:07,902 INFO L82 GeneralOperation]: Start removeDead. Operand has 206 places, 214 transitions, 442 flow [2023-11-30 08:51:07,906 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 169 places, 174 transitions, 357 flow [2023-11-30 08:51:07,912 INFO L361 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-30 08:51:07,917 INFO L362 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=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5796e348, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-30 08:51:07,917 INFO L363 AbstractCegarLoop]: Starting to check reachability of 26 error locations. [2023-11-30 08:51:07,947 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-30 08:51:07,947 INFO L124 PetriNetUnfolderBase]: 2/79 cut-off events. [2023-11-30 08:51:07,947 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-30 08:51:07,948 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:51:07,948 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 08:51:07,949 INFO L425 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2023-11-30 08:51:07,952 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:51:07,953 INFO L85 PathProgramCache]: Analyzing trace with hash -2621746, now seen corresponding path program 1 times [2023-11-30 08:51:07,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:51:07,961 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418562354] [2023-11-30 08:51:07,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:51:07,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:51:08,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:51:08,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 08:51:08,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:51:08,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1418562354] [2023-11-30 08:51:08,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1418562354] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:51:08,170 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:51:08,170 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-30 08:51:08,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128191967] [2023-11-30 08:51:08,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:51:08,177 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-30 08:51:08,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:51:08,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-30 08:51:08,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-30 08:51:08,201 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 178 out of 214 [2023-11-30 08:51:08,204 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 169 places, 174 transitions, 357 flow. Second operand has 4 states, 4 states have (on average 179.5) internal successors, (718), 4 states have internal predecessors, (718), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:51:08,204 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:51:08,204 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 178 of 214 [2023-11-30 08:51:08,205 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:51:08,329 INFO L124 PetriNetUnfolderBase]: 44/308 cut-off events. [2023-11-30 08:51:08,330 INFO L125 PetriNetUnfolderBase]: For 39/40 co-relation queries the response was YES. [2023-11-30 08:51:08,334 INFO L83 FinitePrefix]: Finished finitePrefix Result has 483 conditions, 308 events. 44/308 cut-off events. For 39/40 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1350 event pairs, 13 based on Foata normal form. 45/311 useless extension candidates. Maximal degree in co-relation 432. Up to 48 conditions per place. [2023-11-30 08:51:08,337 INFO L140 encePairwiseOnDemand]: 202/214 looper letters, 34 selfloop transitions, 5 changer transitions 0/182 dead transitions. [2023-11-30 08:51:08,337 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 171 places, 182 transitions, 457 flow [2023-11-30 08:51:08,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-30 08:51:08,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-30 08:51:08,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 764 transitions. [2023-11-30 08:51:08,356 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8925233644859814 [2023-11-30 08:51:08,356 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 764 transitions. [2023-11-30 08:51:08,356 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 764 transitions. [2023-11-30 08:51:08,359 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:51:08,362 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 764 transitions. [2023-11-30 08:51:08,365 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 191.0) internal successors, (764), 4 states have internal predecessors, (764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:51:08,369 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 214.0) internal successors, (1070), 5 states have internal predecessors, (1070), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:51:08,369 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 214.0) internal successors, (1070), 5 states have internal predecessors, (1070), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:51:08,371 INFO L307 CegarLoopForPetriNet]: 169 programPoint places, 2 predicate places. [2023-11-30 08:51:08,372 INFO L500 AbstractCegarLoop]: Abstraction has has 171 places, 182 transitions, 457 flow [2023-11-30 08:51:08,372 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 179.5) internal successors, (718), 4 states have internal predecessors, (718), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:51:08,372 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:51:08,372 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 08:51:08,372 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-30 08:51:08,373 INFO L425 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2023-11-30 08:51:08,373 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:51:08,373 INFO L85 PathProgramCache]: Analyzing trace with hash -81273580, now seen corresponding path program 1 times [2023-11-30 08:51:08,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:51:08,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464967065] [2023-11-30 08:51:08,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:51:08,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:51:08,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:51:08,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 08:51:08,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:51:08,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1464967065] [2023-11-30 08:51:08,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1464967065] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:51:08,482 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:51:08,482 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-30 08:51:08,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941117498] [2023-11-30 08:51:08,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:51:08,484 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-30 08:51:08,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:51:08,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-30 08:51:08,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-30 08:51:08,486 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 214 [2023-11-30 08:51:08,487 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 171 places, 182 transitions, 457 flow. Second operand has 6 states, 6 states have (on average 174.16666666666666) internal successors, (1045), 6 states have internal predecessors, (1045), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:51:08,487 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:51:08,487 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 214 [2023-11-30 08:51:08,487 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:51:08,628 INFO L124 PetriNetUnfolderBase]: 82/525 cut-off events. [2023-11-30 08:51:08,628 INFO L125 PetriNetUnfolderBase]: For 102/105 co-relation queries the response was YES. [2023-11-30 08:51:08,630 INFO L83 FinitePrefix]: Finished finitePrefix Result has 898 conditions, 525 events. 82/525 cut-off events. For 102/105 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 2745 event pairs, 5 based on Foata normal form. 0/448 useless extension candidates. Maximal degree in co-relation 825. Up to 122 conditions per place. [2023-11-30 08:51:08,632 INFO L140 encePairwiseOnDemand]: 206/214 looper letters, 37 selfloop transitions, 8 changer transitions 0/185 dead transitions. [2023-11-30 08:51:08,633 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 175 places, 185 transitions, 561 flow [2023-11-30 08:51:08,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-30 08:51:08,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-30 08:51:08,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1067 transitions. [2023-11-30 08:51:08,635 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8309968847352025 [2023-11-30 08:51:08,635 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1067 transitions. [2023-11-30 08:51:08,635 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1067 transitions. [2023-11-30 08:51:08,636 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:51:08,636 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1067 transitions. [2023-11-30 08:51:08,638 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 177.83333333333334) internal successors, (1067), 6 states have internal predecessors, (1067), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:51:08,640 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 214.0) internal successors, (1498), 7 states have internal predecessors, (1498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:51:08,641 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 214.0) internal successors, (1498), 7 states have internal predecessors, (1498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:51:08,641 INFO L307 CegarLoopForPetriNet]: 169 programPoint places, 6 predicate places. [2023-11-30 08:51:08,641 INFO L500 AbstractCegarLoop]: Abstraction has has 175 places, 185 transitions, 561 flow [2023-11-30 08:51:08,642 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 174.16666666666666) internal successors, (1045), 6 states have internal predecessors, (1045), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:51:08,642 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:51:08,642 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 08:51:08,643 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-30 08:51:08,643 INFO L425 AbstractCegarLoop]: === Iteration 3 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2023-11-30 08:51:08,644 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:51:08,644 INFO L85 PathProgramCache]: Analyzing trace with hash 1992635634, now seen corresponding path program 1 times [2023-11-30 08:51:08,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:51:08,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82498170] [2023-11-30 08:51:08,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:51:08,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:51:08,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:51:08,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 08:51:08,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:51:08,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82498170] [2023-11-30 08:51:08,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [82498170] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:51:08,749 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:51:08,749 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-30 08:51:08,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864999449] [2023-11-30 08:51:08,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:51:08,750 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-30 08:51:08,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:51:08,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-30 08:51:08,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-30 08:51:08,751 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 178 out of 214 [2023-11-30 08:51:08,752 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 175 places, 185 transitions, 561 flow. Second operand has 4 states, 4 states have (on average 179.75) internal successors, (719), 4 states have internal predecessors, (719), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:51:08,752 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:51:08,752 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 178 of 214 [2023-11-30 08:51:08,752 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:51:08,857 INFO L124 PetriNetUnfolderBase]: 150/750 cut-off events. [2023-11-30 08:51:08,858 INFO L125 PetriNetUnfolderBase]: For 818/825 co-relation queries the response was YES. [2023-11-30 08:51:08,861 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1546 conditions, 750 events. 150/750 cut-off events. For 818/825 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 4629 event pairs, 18 based on Foata normal form. 0/645 useless extension candidates. Maximal degree in co-relation 1041. Up to 129 conditions per place. [2023-11-30 08:51:08,865 INFO L140 encePairwiseOnDemand]: 206/214 looper letters, 38 selfloop transitions, 5 changer transitions 0/197 dead transitions. [2023-11-30 08:51:08,868 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 177 places, 197 transitions, 685 flow [2023-11-30 08:51:08,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-30 08:51:08,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-30 08:51:08,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 754 transitions. [2023-11-30 08:51:08,870 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8808411214953271 [2023-11-30 08:51:08,870 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 754 transitions. [2023-11-30 08:51:08,870 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 754 transitions. [2023-11-30 08:51:08,870 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:51:08,870 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 754 transitions. [2023-11-30 08:51:08,872 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 188.5) internal successors, (754), 4 states have internal predecessors, (754), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:51:08,873 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 214.0) internal successors, (1070), 5 states have internal predecessors, (1070), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:51:08,873 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 214.0) internal successors, (1070), 5 states have internal predecessors, (1070), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:51:08,874 INFO L307 CegarLoopForPetriNet]: 169 programPoint places, 8 predicate places. [2023-11-30 08:51:08,875 INFO L500 AbstractCegarLoop]: Abstraction has has 177 places, 197 transitions, 685 flow [2023-11-30 08:51:08,875 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 179.75) internal successors, (719), 4 states have internal predecessors, (719), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:51:08,875 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:51:08,875 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 08:51:08,876 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-30 08:51:08,876 INFO L425 AbstractCegarLoop]: === Iteration 4 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2023-11-30 08:51:08,878 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:51:08,878 INFO L85 PathProgramCache]: Analyzing trace with hash 1642163119, now seen corresponding path program 1 times [2023-11-30 08:51:08,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:51:08,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1824344255] [2023-11-30 08:51:08,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:51:08,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:51:08,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:51:08,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 08:51:08,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:51:08,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1824344255] [2023-11-30 08:51:08,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1824344255] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:51:08,995 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:51:08,995 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-30 08:51:08,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876411524] [2023-11-30 08:51:08,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:51:08,995 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-30 08:51:08,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:51:08,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-30 08:51:08,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-30 08:51:08,997 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 214 [2023-11-30 08:51:08,998 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 177 places, 197 transitions, 685 flow. Second operand has 6 states, 6 states have (on average 174.33333333333334) internal successors, (1046), 6 states have internal predecessors, (1046), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:51:08,998 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:51:08,998 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 214 [2023-11-30 08:51:08,998 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:51:09,147 INFO L124 PetriNetUnfolderBase]: 177/812 cut-off events. [2023-11-30 08:51:09,147 INFO L125 PetriNetUnfolderBase]: For 1124/1145 co-relation queries the response was YES. [2023-11-30 08:51:09,150 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1965 conditions, 812 events. 177/812 cut-off events. For 1124/1145 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 5007 event pairs, 5 based on Foata normal form. 0/703 useless extension candidates. Maximal degree in co-relation 1532. Up to 174 conditions per place. [2023-11-30 08:51:09,154 INFO L140 encePairwiseOnDemand]: 206/214 looper letters, 41 selfloop transitions, 10 changer transitions 0/200 dead transitions. [2023-11-30 08:51:09,154 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 181 places, 200 transitions, 813 flow [2023-11-30 08:51:09,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-30 08:51:09,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-30 08:51:09,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1067 transitions. [2023-11-30 08:51:09,157 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8309968847352025 [2023-11-30 08:51:09,157 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1067 transitions. [2023-11-30 08:51:09,157 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1067 transitions. [2023-11-30 08:51:09,157 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:51:09,157 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1067 transitions. [2023-11-30 08:51:09,159 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 177.83333333333334) internal successors, (1067), 6 states have internal predecessors, (1067), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:51:09,161 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 214.0) internal successors, (1498), 7 states have internal predecessors, (1498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:51:09,162 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 214.0) internal successors, (1498), 7 states have internal predecessors, (1498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:51:09,163 INFO L307 CegarLoopForPetriNet]: 169 programPoint places, 12 predicate places. [2023-11-30 08:51:09,163 INFO L500 AbstractCegarLoop]: Abstraction has has 181 places, 200 transitions, 813 flow [2023-11-30 08:51:09,164 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 174.33333333333334) internal successors, (1046), 6 states have internal predecessors, (1046), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:51:09,164 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:51:09,164 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 08:51:09,164 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-30 08:51:09,164 INFO L425 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2023-11-30 08:51:09,165 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:51:09,165 INFO L85 PathProgramCache]: Analyzing trace with hash 1367433051, now seen corresponding path program 1 times [2023-11-30 08:51:09,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:51:09,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033399080] [2023-11-30 08:51:09,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:51:09,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:51:09,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:51:09,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 08:51:09,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:51:09,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1033399080] [2023-11-30 08:51:09,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1033399080] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:51:09,287 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:51:09,287 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-30 08:51:09,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699618313] [2023-11-30 08:51:09,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:51:09,288 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-30 08:51:09,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:51:09,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-30 08:51:09,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-30 08:51:09,290 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 214 [2023-11-30 08:51:09,291 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 181 places, 200 transitions, 813 flow. Second operand has 6 states, 6 states have (on average 174.16666666666666) internal successors, (1045), 6 states have internal predecessors, (1045), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:51:09,291 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:51:09,291 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 214 [2023-11-30 08:51:09,291 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:51:09,409 INFO L124 PetriNetUnfolderBase]: 173/755 cut-off events. [2023-11-30 08:51:09,410 INFO L125 PetriNetUnfolderBase]: For 1627/1660 co-relation queries the response was YES. [2023-11-30 08:51:09,413 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2075 conditions, 755 events. 173/755 cut-off events. For 1627/1660 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 4677 event pairs, 5 based on Foata normal form. 2/661 useless extension candidates. Maximal degree in co-relation 1405. Up to 174 conditions per place. [2023-11-30 08:51:09,416 INFO L140 encePairwiseOnDemand]: 206/214 looper letters, 40 selfloop transitions, 10 changer transitions 0/199 dead transitions. [2023-11-30 08:51:09,416 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 185 places, 199 transitions, 907 flow [2023-11-30 08:51:09,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-30 08:51:09,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-30 08:51:09,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1066 transitions. [2023-11-30 08:51:09,418 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8302180685358256 [2023-11-30 08:51:09,418 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1066 transitions. [2023-11-30 08:51:09,418 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1066 transitions. [2023-11-30 08:51:09,419 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:51:09,419 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1066 transitions. [2023-11-30 08:51:09,421 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 177.66666666666666) internal successors, (1066), 6 states have internal predecessors, (1066), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:51:09,422 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 214.0) internal successors, (1498), 7 states have internal predecessors, (1498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:51:09,423 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 214.0) internal successors, (1498), 7 states have internal predecessors, (1498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:51:09,425 INFO L307 CegarLoopForPetriNet]: 169 programPoint places, 16 predicate places. [2023-11-30 08:51:09,425 INFO L500 AbstractCegarLoop]: Abstraction has has 185 places, 199 transitions, 907 flow [2023-11-30 08:51:09,425 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 174.16666666666666) internal successors, (1045), 6 states have internal predecessors, (1045), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:51:09,425 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:51:09,426 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 08:51:09,426 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-30 08:51:09,426 INFO L425 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2023-11-30 08:51:09,426 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:51:09,427 INFO L85 PathProgramCache]: Analyzing trace with hash -559247816, now seen corresponding path program 1 times [2023-11-30 08:51:09,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:51:09,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305522808] [2023-11-30 08:51:09,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:51:09,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:51:09,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:51:09,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 08:51:09,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:51:09,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305522808] [2023-11-30 08:51:09,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1305522808] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:51:09,470 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:51:09,470 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-30 08:51:09,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640726335] [2023-11-30 08:51:09,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:51:09,472 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-30 08:51:09,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:51:09,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-30 08:51:09,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-30 08:51:09,473 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 178 out of 214 [2023-11-30 08:51:09,474 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 185 places, 199 transitions, 907 flow. Second operand has 4 states, 4 states have (on average 180.5) internal successors, (722), 4 states have internal predecessors, (722), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:51:09,474 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:51:09,474 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 178 of 214 [2023-11-30 08:51:09,474 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:51:09,563 INFO L124 PetriNetUnfolderBase]: 170/752 cut-off events. [2023-11-30 08:51:09,563 INFO L125 PetriNetUnfolderBase]: For 2157/2188 co-relation queries the response was YES. [2023-11-30 08:51:09,567 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2256 conditions, 752 events. 170/752 cut-off events. For 2157/2188 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 4708 event pairs, 5 based on Foata normal form. 0/659 useless extension candidates. Maximal degree in co-relation 1518. Up to 174 conditions per place. [2023-11-30 08:51:09,571 INFO L140 encePairwiseOnDemand]: 209/214 looper letters, 41 selfloop transitions, 4 changer transitions 0/201 dead transitions. [2023-11-30 08:51:09,572 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 188 places, 201 transitions, 1034 flow [2023-11-30 08:51:09,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-30 08:51:09,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-30 08:51:09,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 749 transitions. [2023-11-30 08:51:09,574 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.875 [2023-11-30 08:51:09,574 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 749 transitions. [2023-11-30 08:51:09,574 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 749 transitions. [2023-11-30 08:51:09,574 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:51:09,574 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 749 transitions. [2023-11-30 08:51:09,576 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 187.25) internal successors, (749), 4 states have internal predecessors, (749), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:51:09,577 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 214.0) internal successors, (1070), 5 states have internal predecessors, (1070), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:51:09,577 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 214.0) internal successors, (1070), 5 states have internal predecessors, (1070), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:51:09,579 INFO L307 CegarLoopForPetriNet]: 169 programPoint places, 19 predicate places. [2023-11-30 08:51:09,580 INFO L500 AbstractCegarLoop]: Abstraction has has 188 places, 201 transitions, 1034 flow [2023-11-30 08:51:09,580 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 180.5) internal successors, (722), 4 states have internal predecessors, (722), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:51:09,580 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:51:09,580 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 08:51:09,580 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-30 08:51:09,580 INFO L425 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2023-11-30 08:51:09,581 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:51:09,581 INFO L85 PathProgramCache]: Analyzing trace with hash 1321198616, now seen corresponding path program 1 times [2023-11-30 08:51:09,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:51:09,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482740275] [2023-11-30 08:51:09,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:51:09,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:51:09,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:51:09,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 08:51:09,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:51:09,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482740275] [2023-11-30 08:51:09,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [482740275] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:51:09,646 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:51:09,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-30 08:51:09,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000302114] [2023-11-30 08:51:09,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:51:09,646 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-30 08:51:09,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:51:09,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-30 08:51:09,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-30 08:51:09,648 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 178 out of 214 [2023-11-30 08:51:09,649 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 188 places, 201 transitions, 1034 flow. Second operand has 4 states, 4 states have (on average 180.75) internal successors, (723), 4 states have internal predecessors, (723), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:51:09,649 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:51:09,649 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 178 of 214 [2023-11-30 08:51:09,649 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:51:09,755 INFO L124 PetriNetUnfolderBase]: 191/878 cut-off events. [2023-11-30 08:51:09,755 INFO L125 PetriNetUnfolderBase]: For 3245/3276 co-relation queries the response was YES. [2023-11-30 08:51:09,760 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2986 conditions, 878 events. 191/878 cut-off events. For 3245/3276 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 5709 event pairs, 5 based on Foata normal form. 4/769 useless extension candidates. Maximal degree in co-relation 2180. Up to 180 conditions per place. [2023-11-30 08:51:09,765 INFO L140 encePairwiseOnDemand]: 209/214 looper letters, 49 selfloop transitions, 5 changer transitions 0/212 dead transitions. [2023-11-30 08:51:09,765 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 190 places, 212 transitions, 1264 flow [2023-11-30 08:51:09,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-30 08:51:09,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-30 08:51:09,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 746 transitions. [2023-11-30 08:51:09,767 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8714953271028038 [2023-11-30 08:51:09,767 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 746 transitions. [2023-11-30 08:51:09,767 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 746 transitions. [2023-11-30 08:51:09,767 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:51:09,767 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 746 transitions. [2023-11-30 08:51:09,770 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 186.5) internal successors, (746), 4 states have internal predecessors, (746), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:51:09,771 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 214.0) internal successors, (1070), 5 states have internal predecessors, (1070), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:51:09,771 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 214.0) internal successors, (1070), 5 states have internal predecessors, (1070), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:51:09,772 INFO L307 CegarLoopForPetriNet]: 169 programPoint places, 21 predicate places. [2023-11-30 08:51:09,772 INFO L500 AbstractCegarLoop]: Abstraction has has 190 places, 212 transitions, 1264 flow [2023-11-30 08:51:09,772 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 180.75) internal successors, (723), 4 states have internal predecessors, (723), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:51:09,772 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:51:09,772 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 08:51:09,772 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-30 08:51:09,772 INFO L425 AbstractCegarLoop]: === Iteration 8 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2023-11-30 08:51:09,773 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:51:09,773 INFO L85 PathProgramCache]: Analyzing trace with hash -1369083274, now seen corresponding path program 1 times [2023-11-30 08:51:09,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:51:09,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580696966] [2023-11-30 08:51:09,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:51:09,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:51:09,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:51:09,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 08:51:09,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:51:09,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580696966] [2023-11-30 08:51:09,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [580696966] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:51:09,852 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:51:09,852 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-30 08:51:09,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925905215] [2023-11-30 08:51:09,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:51:09,852 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-30 08:51:09,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:51:09,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-30 08:51:09,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-30 08:51:09,854 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 214 [2023-11-30 08:51:09,854 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 190 places, 212 transitions, 1264 flow. Second operand has 6 states, 6 states have (on average 174.33333333333334) internal successors, (1046), 6 states have internal predecessors, (1046), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:51:09,855 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:51:09,855 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 214 [2023-11-30 08:51:09,855 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:51:10,027 INFO L124 PetriNetUnfolderBase]: 188/871 cut-off events. [2023-11-30 08:51:10,027 INFO L125 PetriNetUnfolderBase]: For 3774/3829 co-relation queries the response was YES. [2023-11-30 08:51:10,032 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3238 conditions, 871 events. 188/871 cut-off events. For 3774/3829 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 5677 event pairs, 5 based on Foata normal form. 6/768 useless extension candidates. Maximal degree in co-relation 2372. Up to 178 conditions per place. [2023-11-30 08:51:10,035 INFO L140 encePairwiseOnDemand]: 206/214 looper letters, 47 selfloop transitions, 10 changer transitions 0/211 dead transitions. [2023-11-30 08:51:10,036 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 194 places, 211 transitions, 1372 flow [2023-11-30 08:51:10,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-30 08:51:10,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-30 08:51:10,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1066 transitions. [2023-11-30 08:51:10,038 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8302180685358256 [2023-11-30 08:51:10,038 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1066 transitions. [2023-11-30 08:51:10,038 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1066 transitions. [2023-11-30 08:51:10,039 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:51:10,039 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1066 transitions. [2023-11-30 08:51:10,040 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 177.66666666666666) internal successors, (1066), 6 states have internal predecessors, (1066), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:51:10,042 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 214.0) internal successors, (1498), 7 states have internal predecessors, (1498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:51:10,042 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 214.0) internal successors, (1498), 7 states have internal predecessors, (1498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:51:10,044 INFO L307 CegarLoopForPetriNet]: 169 programPoint places, 25 predicate places. [2023-11-30 08:51:10,044 INFO L500 AbstractCegarLoop]: Abstraction has has 194 places, 211 transitions, 1372 flow [2023-11-30 08:51:10,044 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 174.33333333333334) internal successors, (1046), 6 states have internal predecessors, (1046), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:51:10,045 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:51:10,046 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 08:51:10,046 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-30 08:51:10,046 INFO L425 AbstractCegarLoop]: === Iteration 9 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2023-11-30 08:51:10,046 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:51:10,046 INFO L85 PathProgramCache]: Analyzing trace with hash 508092092, now seen corresponding path program 1 times [2023-11-30 08:51:10,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:51:10,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495365471] [2023-11-30 08:51:10,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:51:10,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:51:10,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:51:10,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 08:51:10,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:51:10,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [495365471] [2023-11-30 08:51:10,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [495365471] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:51:10,081 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:51:10,081 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-30 08:51:10,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604744635] [2023-11-30 08:51:10,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:51:10,082 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-30 08:51:10,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:51:10,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-30 08:51:10,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-30 08:51:10,083 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 178 out of 214 [2023-11-30 08:51:10,084 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 194 places, 211 transitions, 1372 flow. Second operand has 4 states, 4 states have (on average 180.75) internal successors, (723), 4 states have internal predecessors, (723), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:51:10,084 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:51:10,084 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 178 of 214 [2023-11-30 08:51:10,084 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:51:10,181 INFO L124 PetriNetUnfolderBase]: 183/803 cut-off events. [2023-11-30 08:51:10,181 INFO L125 PetriNetUnfolderBase]: For 4141/4190 co-relation queries the response was YES. [2023-11-30 08:51:10,185 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3221 conditions, 803 events. 183/803 cut-off events. For 4141/4190 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 5328 event pairs, 5 based on Foata normal form. 0/709 useless extension candidates. Maximal degree in co-relation 2243. Up to 163 conditions per place. [2023-11-30 08:51:10,190 INFO L140 encePairwiseOnDemand]: 209/214 looper letters, 48 selfloop transitions, 4 changer transitions 0/213 dead transitions. [2023-11-30 08:51:10,190 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 197 places, 213 transitions, 1531 flow [2023-11-30 08:51:10,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-30 08:51:10,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-30 08:51:10,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 749 transitions. [2023-11-30 08:51:10,192 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.875 [2023-11-30 08:51:10,192 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 749 transitions. [2023-11-30 08:51:10,192 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 749 transitions. [2023-11-30 08:51:10,192 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:51:10,192 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 749 transitions. [2023-11-30 08:51:10,193 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 187.25) internal successors, (749), 4 states have internal predecessors, (749), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:51:10,195 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 214.0) internal successors, (1070), 5 states have internal predecessors, (1070), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:51:10,195 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 214.0) internal successors, (1070), 5 states have internal predecessors, (1070), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:51:10,196 INFO L307 CegarLoopForPetriNet]: 169 programPoint places, 28 predicate places. [2023-11-30 08:51:10,196 INFO L500 AbstractCegarLoop]: Abstraction has has 197 places, 213 transitions, 1531 flow [2023-11-30 08:51:10,196 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 180.75) internal successors, (723), 4 states have internal predecessors, (723), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:51:10,197 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:51:10,197 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 08:51:10,197 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-30 08:51:10,197 INFO L425 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2023-11-30 08:51:10,197 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:51:10,197 INFO L85 PathProgramCache]: Analyzing trace with hash 322985021, now seen corresponding path program 1 times [2023-11-30 08:51:10,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:51:10,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952821890] [2023-11-30 08:51:10,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:51:10,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:51:10,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:51:10,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 08:51:10,282 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:51:10,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [952821890] [2023-11-30 08:51:10,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [952821890] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:51:10,282 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:51:10,282 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-30 08:51:10,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199768372] [2023-11-30 08:51:10,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:51:10,285 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-30 08:51:10,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:51:10,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-30 08:51:10,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-11-30 08:51:10,287 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 214 [2023-11-30 08:51:10,288 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 197 places, 213 transitions, 1531 flow. Second operand has 8 states, 8 states have (on average 169.125) internal successors, (1353), 8 states have internal predecessors, (1353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:51:10,288 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:51:10,288 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 214 [2023-11-30 08:51:10,288 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:51:10,460 INFO L124 PetriNetUnfolderBase]: 188/863 cut-off events. [2023-11-30 08:51:10,460 INFO L125 PetriNetUnfolderBase]: For 5298/5361 co-relation queries the response was YES. [2023-11-30 08:51:10,465 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3750 conditions, 863 events. 188/863 cut-off events. For 5298/5361 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 5633 event pairs, 5 based on Foata normal form. 2/768 useless extension candidates. Maximal degree in co-relation 2768. Up to 174 conditions per place. [2023-11-30 08:51:10,470 INFO L140 encePairwiseOnDemand]: 202/214 looper letters, 60 selfloop transitions, 15 changer transitions 0/217 dead transitions. [2023-11-30 08:51:10,470 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 204 places, 217 transitions, 1756 flow [2023-11-30 08:51:10,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-30 08:51:10,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-11-30 08:51:10,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1383 transitions. [2023-11-30 08:51:10,473 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8078271028037384 [2023-11-30 08:51:10,473 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1383 transitions. [2023-11-30 08:51:10,473 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1383 transitions. [2023-11-30 08:51:10,473 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:51:10,474 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1383 transitions. [2023-11-30 08:51:10,475 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 172.875) internal successors, (1383), 8 states have internal predecessors, (1383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:51:10,478 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 214.0) internal successors, (1926), 9 states have internal predecessors, (1926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:51:10,478 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 214.0) internal successors, (1926), 9 states have internal predecessors, (1926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:51:10,479 INFO L307 CegarLoopForPetriNet]: 169 programPoint places, 35 predicate places. [2023-11-30 08:51:10,479 INFO L500 AbstractCegarLoop]: Abstraction has has 204 places, 217 transitions, 1756 flow [2023-11-30 08:51:10,479 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 169.125) internal successors, (1353), 8 states have internal predecessors, (1353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:51:10,479 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:51:10,480 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 08:51:10,480 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-30 08:51:10,480 INFO L425 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2023-11-30 08:51:10,480 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:51:10,480 INFO L85 PathProgramCache]: Analyzing trace with hash 1422601634, now seen corresponding path program 1 times [2023-11-30 08:51:10,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:51:10,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400169343] [2023-11-30 08:51:10,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:51:10,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:51:10,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:51:10,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 08:51:10,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:51:10,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400169343] [2023-11-30 08:51:10,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1400169343] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:51:10,575 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:51:10,575 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-30 08:51:10,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576536369] [2023-11-30 08:51:10,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:51:10,575 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-30 08:51:10,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:51:10,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-30 08:51:10,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-11-30 08:51:10,577 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 214 [2023-11-30 08:51:10,578 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 204 places, 217 transitions, 1756 flow. Second operand has 8 states, 8 states have (on average 169.25) internal successors, (1354), 8 states have internal predecessors, (1354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:51:10,578 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:51:10,578 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 214 [2023-11-30 08:51:10,578 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:51:10,725 INFO L124 PetriNetUnfolderBase]: 193/801 cut-off events. [2023-11-30 08:51:10,725 INFO L125 PetriNetUnfolderBase]: For 6237/6318 co-relation queries the response was YES. [2023-11-30 08:51:10,730 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3770 conditions, 801 events. 193/801 cut-off events. For 6237/6318 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 5283 event pairs, 5 based on Foata normal form. 4/723 useless extension candidates. Maximal degree in co-relation 2646. Up to 163 conditions per place. [2023-11-30 08:51:10,734 INFO L140 encePairwiseOnDemand]: 202/214 looper letters, 67 selfloop transitions, 16 changer transitions 0/225 dead transitions. [2023-11-30 08:51:10,734 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 211 places, 225 transitions, 2092 flow [2023-11-30 08:51:10,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-30 08:51:10,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-11-30 08:51:10,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1382 transitions. [2023-11-30 08:51:10,737 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8072429906542056 [2023-11-30 08:51:10,737 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1382 transitions. [2023-11-30 08:51:10,737 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1382 transitions. [2023-11-30 08:51:10,737 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:51:10,737 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1382 transitions. [2023-11-30 08:51:10,739 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 172.75) internal successors, (1382), 8 states have internal predecessors, (1382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:51:10,741 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 214.0) internal successors, (1926), 9 states have internal predecessors, (1926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:51:10,742 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 214.0) internal successors, (1926), 9 states have internal predecessors, (1926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:51:10,742 INFO L307 CegarLoopForPetriNet]: 169 programPoint places, 42 predicate places. [2023-11-30 08:51:10,742 INFO L500 AbstractCegarLoop]: Abstraction has has 211 places, 225 transitions, 2092 flow [2023-11-30 08:51:10,743 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 169.25) internal successors, (1354), 8 states have internal predecessors, (1354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:51:10,743 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:51:10,743 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 08:51:10,743 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-30 08:51:10,743 INFO L425 AbstractCegarLoop]: === Iteration 12 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2023-11-30 08:51:10,743 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:51:10,743 INFO L85 PathProgramCache]: Analyzing trace with hash -1493399181, now seen corresponding path program 1 times [2023-11-30 08:51:10,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:51:10,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918087112] [2023-11-30 08:51:10,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:51:10,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:51:10,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:51:10,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 08:51:10,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:51:10,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [918087112] [2023-11-30 08:51:10,784 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [918087112] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:51:10,784 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:51:10,784 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-30 08:51:10,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049864401] [2023-11-30 08:51:10,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:51:10,785 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-30 08:51:10,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:51:10,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-30 08:51:10,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-30 08:51:10,786 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 174 out of 214 [2023-11-30 08:51:10,786 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 211 places, 225 transitions, 2092 flow. Second operand has 5 states, 5 states have (on average 177.0) internal successors, (885), 5 states have internal predecessors, (885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:51:10,787 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:51:10,787 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 174 of 214 [2023-11-30 08:51:10,787 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:51:10,902 INFO L124 PetriNetUnfolderBase]: 208/916 cut-off events. [2023-11-30 08:51:10,902 INFO L125 PetriNetUnfolderBase]: For 8208/8315 co-relation queries the response was YES. [2023-11-30 08:51:10,907 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4435 conditions, 916 events. 208/916 cut-off events. For 8208/8315 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 6312 event pairs, 4 based on Foata normal form. 0/823 useless extension candidates. Maximal degree in co-relation 3014. Up to 188 conditions per place. [2023-11-30 08:51:10,911 INFO L140 encePairwiseOnDemand]: 206/214 looper letters, 62 selfloop transitions, 8 changer transitions 0/230 dead transitions. [2023-11-30 08:51:10,911 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 215 places, 230 transitions, 2276 flow [2023-11-30 08:51:10,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-30 08:51:10,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-30 08:51:10,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1090 transitions. [2023-11-30 08:51:10,913 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8489096573208723 [2023-11-30 08:51:10,913 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1090 transitions. [2023-11-30 08:51:10,913 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1090 transitions. [2023-11-30 08:51:10,914 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:51:10,914 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1090 transitions. [2023-11-30 08:51:10,915 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 181.66666666666666) internal successors, (1090), 6 states have internal predecessors, (1090), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:51:10,917 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 214.0) internal successors, (1498), 7 states have internal predecessors, (1498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:51:10,917 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 214.0) internal successors, (1498), 7 states have internal predecessors, (1498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:51:10,917 INFO L307 CegarLoopForPetriNet]: 169 programPoint places, 46 predicate places. [2023-11-30 08:51:10,917 INFO L500 AbstractCegarLoop]: Abstraction has has 215 places, 230 transitions, 2276 flow [2023-11-30 08:51:10,918 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 177.0) internal successors, (885), 5 states have internal predecessors, (885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:51:10,918 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:51:10,918 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 08:51:10,918 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-30 08:51:10,918 INFO L425 AbstractCegarLoop]: === Iteration 13 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2023-11-30 08:51:10,918 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:51:10,918 INFO L85 PathProgramCache]: Analyzing trace with hash 448121373, now seen corresponding path program 1 times [2023-11-30 08:51:10,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:51:10,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [199483327] [2023-11-30 08:51:10,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:51:10,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:51:10,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:51:10,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 08:51:10,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:51:10,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [199483327] [2023-11-30 08:51:10,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [199483327] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:51:10,985 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:51:10,985 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-30 08:51:10,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586386841] [2023-11-30 08:51:10,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:51:10,985 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-30 08:51:10,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:51:10,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-30 08:51:10,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-11-30 08:51:10,986 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 164 out of 214 [2023-11-30 08:51:10,987 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 215 places, 230 transitions, 2276 flow. Second operand has 6 states, 6 states have (on average 168.0) internal successors, (1008), 6 states have internal predecessors, (1008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:51:10,987 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:51:10,987 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 164 of 214 [2023-11-30 08:51:10,987 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:51:11,179 INFO L124 PetriNetUnfolderBase]: 235/918 cut-off events. [2023-11-30 08:51:11,179 INFO L125 PetriNetUnfolderBase]: For 12377/12478 co-relation queries the response was YES. [2023-11-30 08:51:11,185 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5304 conditions, 918 events. 235/918 cut-off events. For 12377/12478 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 6082 event pairs, 5 based on Foata normal form. 0/833 useless extension candidates. Maximal degree in co-relation 3803. Up to 240 conditions per place. [2023-11-30 08:51:11,196 INFO L140 encePairwiseOnDemand]: 205/214 looper letters, 88 selfloop transitions, 11 changer transitions 0/250 dead transitions. [2023-11-30 08:51:11,196 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 220 places, 250 transitions, 2720 flow [2023-11-30 08:51:11,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-30 08:51:11,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-30 08:51:11,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1208 transitions. [2023-11-30 08:51:11,199 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8064085447263017 [2023-11-30 08:51:11,199 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1208 transitions. [2023-11-30 08:51:11,199 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1208 transitions. [2023-11-30 08:51:11,199 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:51:11,200 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1208 transitions. [2023-11-30 08:51:11,206 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 172.57142857142858) internal successors, (1208), 7 states have internal predecessors, (1208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:51:11,208 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 214.0) internal successors, (1712), 8 states have internal predecessors, (1712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:51:11,208 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 214.0) internal successors, (1712), 8 states have internal predecessors, (1712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:51:11,209 INFO L307 CegarLoopForPetriNet]: 169 programPoint places, 51 predicate places. [2023-11-30 08:51:11,209 INFO L500 AbstractCegarLoop]: Abstraction has has 220 places, 250 transitions, 2720 flow [2023-11-30 08:51:11,210 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 168.0) internal successors, (1008), 6 states have internal predecessors, (1008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:51:11,210 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:51:11,210 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 08:51:11,210 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-30 08:51:11,210 INFO L425 AbstractCegarLoop]: === Iteration 14 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2023-11-30 08:51:11,210 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:51:11,210 INFO L85 PathProgramCache]: Analyzing trace with hash -365924807, now seen corresponding path program 1 times [2023-11-30 08:51:11,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:51:11,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619593964] [2023-11-30 08:51:11,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:51:11,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:51:11,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:51:11,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 08:51:11,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:51:11,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619593964] [2023-11-30 08:51:11,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [619593964] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:51:11,290 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:51:11,290 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-30 08:51:11,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233367737] [2023-11-30 08:51:11,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:51:11,290 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-30 08:51:11,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:51:11,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-30 08:51:11,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-11-30 08:51:11,292 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 164 out of 214 [2023-11-30 08:51:11,293 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 220 places, 250 transitions, 2720 flow. Second operand has 6 states, 6 states have (on average 168.16666666666666) internal successors, (1009), 6 states have internal predecessors, (1009), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:51:11,293 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:51:11,293 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 164 of 214 [2023-11-30 08:51:11,293 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:51:11,485 INFO L124 PetriNetUnfolderBase]: 234/936 cut-off events. [2023-11-30 08:51:11,486 INFO L125 PetriNetUnfolderBase]: For 13497/13608 co-relation queries the response was YES. [2023-11-30 08:51:11,493 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5490 conditions, 936 events. 234/936 cut-off events. For 13497/13608 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 6418 event pairs, 4 based on Foata normal form. 0/849 useless extension candidates. Maximal degree in co-relation 3909. Up to 253 conditions per place. [2023-11-30 08:51:11,501 INFO L140 encePairwiseOnDemand]: 205/214 looper letters, 98 selfloop transitions, 13 changer transitions 0/262 dead transitions. [2023-11-30 08:51:11,501 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 225 places, 262 transitions, 3165 flow [2023-11-30 08:51:11,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-30 08:51:11,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-30 08:51:11,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1199 transitions. [2023-11-30 08:51:11,504 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8004005340453939 [2023-11-30 08:51:11,504 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1199 transitions. [2023-11-30 08:51:11,504 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1199 transitions. [2023-11-30 08:51:11,505 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:51:11,505 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1199 transitions. [2023-11-30 08:51:11,506 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 171.28571428571428) internal successors, (1199), 7 states have internal predecessors, (1199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:51:11,508 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 214.0) internal successors, (1712), 8 states have internal predecessors, (1712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:51:11,508 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 214.0) internal successors, (1712), 8 states have internal predecessors, (1712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:51:11,509 INFO L307 CegarLoopForPetriNet]: 169 programPoint places, 56 predicate places. [2023-11-30 08:51:11,509 INFO L500 AbstractCegarLoop]: Abstraction has has 225 places, 262 transitions, 3165 flow [2023-11-30 08:51:11,509 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 168.16666666666666) internal successors, (1009), 6 states have internal predecessors, (1009), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:51:11,510 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:51:11,510 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 08:51:11,510 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-30 08:51:11,510 INFO L425 AbstractCegarLoop]: === Iteration 15 === Targeting thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2023-11-30 08:51:11,510 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:51:11,510 INFO L85 PathProgramCache]: Analyzing trace with hash 1286596961, now seen corresponding path program 1 times [2023-11-30 08:51:11,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:51:11,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107054744] [2023-11-30 08:51:11,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:51:11,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:51:11,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:51:11,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 08:51:11,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:51:11,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [107054744] [2023-11-30 08:51:11,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [107054744] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:51:11,597 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:51:11,597 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-30 08:51:11,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788975731] [2023-11-30 08:51:11,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:51:11,597 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-30 08:51:11,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:51:11,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-30 08:51:11,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-11-30 08:51:11,599 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 214 [2023-11-30 08:51:11,600 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 225 places, 262 transitions, 3165 flow. Second operand has 8 states, 8 states have (on average 169.25) internal successors, (1354), 8 states have internal predecessors, (1354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:51:11,600 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:51:11,600 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 214 [2023-11-30 08:51:11,600 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:51:11,786 INFO L124 PetriNetUnfolderBase]: 239/914 cut-off events. [2023-11-30 08:51:11,786 INFO L125 PetriNetUnfolderBase]: For 15468/15631 co-relation queries the response was YES. [2023-11-30 08:51:11,794 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6036 conditions, 914 events. 239/914 cut-off events. For 15468/15631 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 5980 event pairs, 5 based on Foata normal form. 5/842 useless extension candidates. Maximal degree in co-relation 4344. Up to 295 conditions per place. [2023-11-30 08:51:11,800 INFO L140 encePairwiseOnDemand]: 202/214 looper letters, 81 selfloop transitions, 21 changer transitions 0/267 dead transitions. [2023-11-30 08:51:11,800 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 232 places, 267 transitions, 3498 flow [2023-11-30 08:51:11,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-30 08:51:11,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-11-30 08:51:11,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1382 transitions. [2023-11-30 08:51:11,803 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8072429906542056 [2023-11-30 08:51:11,803 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1382 transitions. [2023-11-30 08:51:11,803 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1382 transitions. [2023-11-30 08:51:11,803 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:51:11,803 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1382 transitions. [2023-11-30 08:51:11,806 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 172.75) internal successors, (1382), 8 states have internal predecessors, (1382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:51:11,809 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 214.0) internal successors, (1926), 9 states have internal predecessors, (1926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:51:11,809 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 214.0) internal successors, (1926), 9 states have internal predecessors, (1926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:51:11,810 INFO L307 CegarLoopForPetriNet]: 169 programPoint places, 63 predicate places. [2023-11-30 08:51:11,810 INFO L500 AbstractCegarLoop]: Abstraction has has 232 places, 267 transitions, 3498 flow [2023-11-30 08:51:11,810 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 169.25) internal successors, (1354), 8 states have internal predecessors, (1354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:51:11,810 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:51:11,810 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 08:51:11,811 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-30 08:51:11,811 INFO L425 AbstractCegarLoop]: === Iteration 16 === Targeting thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2023-11-30 08:51:11,811 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:51:11,811 INFO L85 PathProgramCache]: Analyzing trace with hash 1229800765, now seen corresponding path program 1 times [2023-11-30 08:51:11,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:51:11,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2133981301] [2023-11-30 08:51:11,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:51:11,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:51:11,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:51:11,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 08:51:11,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:51:11,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2133981301] [2023-11-30 08:51:11,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2133981301] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:51:11,885 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:51:11,885 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-30 08:51:11,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734846634] [2023-11-30 08:51:11,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:51:11,886 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-30 08:51:11,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:51:11,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-30 08:51:11,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-11-30 08:51:11,888 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 214 [2023-11-30 08:51:11,889 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 232 places, 267 transitions, 3498 flow. Second operand has 8 states, 8 states have (on average 169.375) internal successors, (1355), 8 states have internal predecessors, (1355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:51:11,889 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:51:11,889 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 214 [2023-11-30 08:51:11,889 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:51:12,112 INFO L124 PetriNetUnfolderBase]: 251/953 cut-off events. [2023-11-30 08:51:12,112 INFO L125 PetriNetUnfolderBase]: For 17346/17494 co-relation queries the response was YES. [2023-11-30 08:51:12,119 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6440 conditions, 953 events. 251/953 cut-off events. For 17346/17494 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 6552 event pairs, 4 based on Foata normal form. 8/884 useless extension candidates. Maximal degree in co-relation 4584. Up to 255 conditions per place. [2023-11-30 08:51:12,125 INFO L140 encePairwiseOnDemand]: 202/214 looper letters, 91 selfloop transitions, 23 changer transitions 0/276 dead transitions. [2023-11-30 08:51:12,125 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 239 places, 276 transitions, 3944 flow [2023-11-30 08:51:12,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-30 08:51:12,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-11-30 08:51:12,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1382 transitions. [2023-11-30 08:51:12,127 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8072429906542056 [2023-11-30 08:51:12,127 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1382 transitions. [2023-11-30 08:51:12,127 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1382 transitions. [2023-11-30 08:51:12,128 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:51:12,128 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1382 transitions. [2023-11-30 08:51:12,130 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 172.75) internal successors, (1382), 8 states have internal predecessors, (1382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:51:12,132 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 214.0) internal successors, (1926), 9 states have internal predecessors, (1926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:51:12,132 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 214.0) internal successors, (1926), 9 states have internal predecessors, (1926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:51:12,132 INFO L307 CegarLoopForPetriNet]: 169 programPoint places, 70 predicate places. [2023-11-30 08:51:12,133 INFO L500 AbstractCegarLoop]: Abstraction has has 239 places, 276 transitions, 3944 flow [2023-11-30 08:51:12,134 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 169.375) internal successors, (1355), 8 states have internal predecessors, (1355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:51:12,134 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:51:12,134 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 08:51:12,134 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-30 08:51:12,134 INFO L425 AbstractCegarLoop]: === Iteration 17 === Targeting thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2023-11-30 08:51:12,135 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:51:12,135 INFO L85 PathProgramCache]: Analyzing trace with hash -149917992, now seen corresponding path program 1 times [2023-11-30 08:51:12,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:51:12,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109825214] [2023-11-30 08:51:12,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:51:12,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:51:12,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:51:12,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 08:51:12,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:51:12,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [109825214] [2023-11-30 08:51:12,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [109825214] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:51:12,217 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:51:12,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-30 08:51:12,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964607916] [2023-11-30 08:51:12,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:51:12,218 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-30 08:51:12,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:51:12,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-30 08:51:12,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-11-30 08:51:12,219 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 164 out of 214 [2023-11-30 08:51:12,220 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 239 places, 276 transitions, 3944 flow. Second operand has 6 states, 6 states have (on average 168.16666666666666) internal successors, (1009), 6 states have internal predecessors, (1009), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:51:12,220 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:51:12,220 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 164 of 214 [2023-11-30 08:51:12,220 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:51:12,416 INFO L124 PetriNetUnfolderBase]: 307/982 cut-off events. [2023-11-30 08:51:12,416 INFO L125 PetriNetUnfolderBase]: For 29172/29313 co-relation queries the response was YES. [2023-11-30 08:51:12,424 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8013 conditions, 982 events. 307/982 cut-off events. For 29172/29313 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 6808 event pairs, 5 based on Foata normal form. 0/913 useless extension candidates. Maximal degree in co-relation 6015. Up to 355 conditions per place. [2023-11-30 08:51:12,430 INFO L140 encePairwiseOnDemand]: 205/214 looper letters, 105 selfloop transitions, 10 changer transitions 3/295 dead transitions. [2023-11-30 08:51:12,431 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 244 places, 295 transitions, 4484 flow [2023-11-30 08:51:12,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-30 08:51:12,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-30 08:51:12,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1207 transitions. [2023-11-30 08:51:12,433 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8057409879839786 [2023-11-30 08:51:12,433 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1207 transitions. [2023-11-30 08:51:12,433 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1207 transitions. [2023-11-30 08:51:12,434 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:51:12,434 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1207 transitions. [2023-11-30 08:51:12,435 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 172.42857142857142) internal successors, (1207), 7 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:51:12,437 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 214.0) internal successors, (1712), 8 states have internal predecessors, (1712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:51:12,437 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 214.0) internal successors, (1712), 8 states have internal predecessors, (1712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:51:12,437 INFO L307 CegarLoopForPetriNet]: 169 programPoint places, 75 predicate places. [2023-11-30 08:51:12,437 INFO L500 AbstractCegarLoop]: Abstraction has has 244 places, 295 transitions, 4484 flow [2023-11-30 08:51:12,438 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 168.16666666666666) internal successors, (1009), 6 states have internal predecessors, (1009), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:51:12,438 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:51:12,438 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 08:51:12,438 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-11-30 08:51:12,438 INFO L425 AbstractCegarLoop]: === Iteration 18 === Targeting thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2023-11-30 08:51:12,438 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:51:12,438 INFO L85 PathProgramCache]: Analyzing trace with hash -1725275875, now seen corresponding path program 1 times [2023-11-30 08:51:12,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:51:12,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82549920] [2023-11-30 08:51:12,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:51:12,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:51:12,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:51:12,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 08:51:12,498 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:51:12,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82549920] [2023-11-30 08:51:12,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [82549920] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:51:12,498 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:51:12,499 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-30 08:51:12,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496332176] [2023-11-30 08:51:12,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:51:12,499 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-30 08:51:12,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:51:12,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-30 08:51:12,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-11-30 08:51:12,500 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 164 out of 214 [2023-11-30 08:51:12,500 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 244 places, 295 transitions, 4484 flow. Second operand has 6 states, 6 states have (on average 168.33333333333334) internal successors, (1010), 6 states have internal predecessors, (1010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:51:12,501 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:51:12,501 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 164 of 214 [2023-11-30 08:51:12,501 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:51:12,700 INFO L124 PetriNetUnfolderBase]: 304/975 cut-off events. [2023-11-30 08:51:12,700 INFO L125 PetriNetUnfolderBase]: For 30574/30765 co-relation queries the response was YES. [2023-11-30 08:51:12,708 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8392 conditions, 975 events. 304/975 cut-off events. For 30574/30765 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 6656 event pairs, 5 based on Foata normal form. 0/910 useless extension candidates. Maximal degree in co-relation 6320. Up to 353 conditions per place. [2023-11-30 08:51:12,712 INFO L140 encePairwiseOnDemand]: 205/214 looper letters, 0 selfloop transitions, 0 changer transitions 309/309 dead transitions. [2023-11-30 08:51:12,712 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 249 places, 309 transitions, 5109 flow [2023-11-30 08:51:12,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-30 08:51:12,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-30 08:51:12,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1199 transitions. [2023-11-30 08:51:12,714 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8004005340453939 [2023-11-30 08:51:12,714 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1199 transitions. [2023-11-30 08:51:12,714 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1199 transitions. [2023-11-30 08:51:12,715 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:51:12,715 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1199 transitions. [2023-11-30 08:51:12,716 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 171.28571428571428) internal successors, (1199), 7 states have internal predecessors, (1199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:51:12,718 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 214.0) internal successors, (1712), 8 states have internal predecessors, (1712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:51:12,718 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 214.0) internal successors, (1712), 8 states have internal predecessors, (1712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:51:12,718 INFO L307 CegarLoopForPetriNet]: 169 programPoint places, 80 predicate places. [2023-11-30 08:51:12,718 INFO L500 AbstractCegarLoop]: Abstraction has has 249 places, 309 transitions, 5109 flow [2023-11-30 08:51:12,719 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 168.33333333333334) internal successors, (1010), 6 states have internal predecessors, (1010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:51:12,723 INFO L143 wickiGriesTestDumper]: Dumping Owicki-Gries test to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/chl-simpl-str-symm.wvr.c_BEv2_AllErrorsAtOnce [2023-11-30 08:51:12,782 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 26 remaining) [2023-11-30 08:51:12,782 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 26 remaining) [2023-11-30 08:51:12,782 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 26 remaining) [2023-11-30 08:51:12,782 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 26 remaining) [2023-11-30 08:51:12,782 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 26 remaining) [2023-11-30 08:51:12,782 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 26 remaining) [2023-11-30 08:51:12,782 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 26 remaining) [2023-11-30 08:51:12,783 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 26 remaining) [2023-11-30 08:51:12,783 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 26 remaining) [2023-11-30 08:51:12,783 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 26 remaining) [2023-11-30 08:51:12,783 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 26 remaining) [2023-11-30 08:51:12,783 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 26 remaining) [2023-11-30 08:51:12,783 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (13 of 26 remaining) [2023-11-30 08:51:12,783 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 26 remaining) [2023-11-30 08:51:12,783 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 26 remaining) [2023-11-30 08:51:12,783 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 26 remaining) [2023-11-30 08:51:12,783 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 26 remaining) [2023-11-30 08:51:12,783 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 26 remaining) [2023-11-30 08:51:12,783 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 26 remaining) [2023-11-30 08:51:12,783 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 26 remaining) [2023-11-30 08:51:12,783 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 26 remaining) [2023-11-30 08:51:12,783 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 26 remaining) [2023-11-30 08:51:12,783 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 26 remaining) [2023-11-30 08:51:12,784 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 26 remaining) [2023-11-30 08:51:12,784 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 26 remaining) [2023-11-30 08:51:12,784 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 26 remaining) [2023-11-30 08:51:12,784 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-11-30 08:51:12,784 INFO L457 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 08:51:12,788 INFO L222 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-30 08:51:12,789 INFO L172 ceAbstractionStarter]: Computing trace abstraction results [2023-11-30 08:51:12,793 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 08:51:12 BasicIcfg [2023-11-30 08:51:12,793 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-30 08:51:12,794 INFO L158 Benchmark]: Toolchain (without parser) took 5800.96ms. Allocated memory was 323.0MB in the beginning and 595.6MB in the end (delta: 272.6MB). Free memory was 283.9MB in the beginning and 228.2MB in the end (delta: 55.7MB). Peak memory consumption was 328.8MB. Max. memory is 16.0GB. [2023-11-30 08:51:12,794 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 323.0MB. Free memory was 279.3MB in the beginning and 279.2MB in the end (delta: 42.2kB). There was no memory consumed. Max. memory is 16.0GB. [2023-11-30 08:51:12,794 INFO L158 Benchmark]: CACSL2BoogieTranslator took 171.10ms. Allocated memory is still 323.0MB. Free memory was 283.5MB in the beginning and 272.2MB in the end (delta: 11.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. [2023-11-30 08:51:12,795 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.47ms. Allocated memory is still 323.0MB. Free memory was 272.2MB in the beginning and 270.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-11-30 08:51:12,795 INFO L158 Benchmark]: Boogie Preprocessor took 20.91ms. Allocated memory is still 323.0MB. Free memory was 270.5MB in the beginning and 268.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-11-30 08:51:12,795 INFO L158 Benchmark]: RCFGBuilder took 505.50ms. Allocated memory is still 323.0MB. Free memory was 268.8MB in the beginning and 250.0MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2023-11-30 08:51:12,795 INFO L158 Benchmark]: TraceAbstraction took 5068.28ms. Allocated memory was 323.0MB in the beginning and 595.6MB in the end (delta: 272.6MB). Free memory was 249.1MB in the beginning and 228.2MB in the end (delta: 21.0MB). Peak memory consumption was 295.2MB. Max. memory is 16.0GB. [2023-11-30 08:51:12,796 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 323.0MB. Free memory was 279.3MB in the beginning and 279.2MB in the end (delta: 42.2kB). There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 171.10ms. Allocated memory is still 323.0MB. Free memory was 283.5MB in the beginning and 272.2MB in the end (delta: 11.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 25.47ms. Allocated memory is still 323.0MB. Free memory was 272.2MB in the beginning and 270.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 20.91ms. Allocated memory is still 323.0MB. Free memory was 270.5MB in the beginning and 268.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 505.50ms. Allocated memory is still 323.0MB. Free memory was 268.8MB in the beginning and 250.0MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * TraceAbstraction took 5068.28ms. Allocated memory was 323.0MB in the beginning and 595.6MB in the end (delta: 272.6MB). Free memory was 249.1MB in the beginning and 228.2MB in the end (delta: 21.0MB). Peak memory consumption was 295.2MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 78]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 78]: 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: 80]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 80]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 78]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 78]: 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: 80]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 80]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 318 locations, 26 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: 4.9s, OverallIterations: 18, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 839 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 839 mSDsluCounter, 678 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 362 mSDsCounter, 47 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1393 IncrementalHoareTripleChecker+Invalid, 1440 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 47 mSolverCounterUnsat, 316 mSDtfsCounter, 1393 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 129 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 110 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5109occurred in iteration=18, InterpolantAutomatonStates: 110, 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, 0.2s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 1110 NumberOfCodeBlocks, 1110 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 1092 ConstructedInterpolants, 0 QuantifiedInterpolants, 2364 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 18 InterpolantComputations, 18 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 12 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-30 08:51:12,819 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...