/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-file-item-symm.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.empire-owicki-175f719-m [2023-11-30 08:35:01,216 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-30 08:35:01,274 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 08:35:01,302 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-30 08:35:01,302 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-30 08:35:01,303 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-30 08:35:01,303 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-30 08:35:01,303 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-30 08:35:01,304 INFO L153 SettingsManager]: * Use SBE=true [2023-11-30 08:35:01,307 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-30 08:35:01,307 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-30 08:35:01,307 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-30 08:35:01,307 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-30 08:35:01,308 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-30 08:35:01,308 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-30 08:35:01,309 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-30 08:35:01,309 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-30 08:35:01,309 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-30 08:35:01,309 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-30 08:35:01,309 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-30 08:35:01,309 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-30 08:35:01,310 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-30 08:35:01,310 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-30 08:35:01,310 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-11-30 08:35:01,310 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-30 08:35:01,312 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-30 08:35:01,312 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-30 08:35:01,312 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-30 08:35:01,312 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-30 08:35:01,313 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-30 08:35:01,313 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-30 08:35:01,313 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-30 08:35:01,313 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-30 08:35:01,314 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2023-11-30 08:35:01,501 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-30 08:35:01,520 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-30 08:35:01,522 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-30 08:35:01,522 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-30 08:35:01,523 INFO L274 PluginConnector]: CDTParser initialized [2023-11-30 08:35:01,523 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-file-item-symm.wvr.c [2023-11-30 08:35:02,527 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-30 08:35:02,649 INFO L384 CDTParser]: Found 1 translation units. [2023-11-30 08:35:02,650 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-file-item-symm.wvr.c [2023-11-30 08:35:02,655 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ab748d85c/717af308adb242cf8950d0db5a22157d/FLAGcf49111dc [2023-11-30 08:35:02,664 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ab748d85c/717af308adb242cf8950d0db5a22157d [2023-11-30 08:35:02,666 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-30 08:35:02,667 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-11-30 08:35:02,668 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-30 08:35:02,668 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-30 08:35:02,671 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-30 08:35:02,672 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 08:35:02" (1/1) ... [2023-11-30 08:35:02,672 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@139f7f17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 08:35:02, skipping insertion in model container [2023-11-30 08:35:02,673 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 08:35:02" (1/1) ... [2023-11-30 08:35:02,689 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-30 08:35:02,790 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-30 08:35:02,797 INFO L202 MainTranslator]: Completed pre-run [2023-11-30 08:35:02,811 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-30 08:35:02,823 INFO L206 MainTranslator]: Completed translation [2023-11-30 08:35:02,823 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 08:35:02 WrapperNode [2023-11-30 08:35:02,823 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-30 08:35:02,824 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-30 08:35:02,824 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-30 08:35:02,824 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-30 08:35:02,829 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 08:35:02" (1/1) ... [2023-11-30 08:35:02,842 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 08:35:02" (1/1) ... [2023-11-30 08:35:02,869 INFO L138 Inliner]: procedures = 22, calls = 26, calls flagged for inlining = 10, calls inlined = 12, statements flattened = 179 [2023-11-30 08:35:02,870 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-30 08:35:02,870 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-30 08:35:02,870 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-30 08:35:02,871 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-30 08:35:02,876 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 08:35:02" (1/1) ... [2023-11-30 08:35:02,876 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 08:35:02" (1/1) ... [2023-11-30 08:35:02,878 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 08:35:02" (1/1) ... [2023-11-30 08:35:02,878 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 08:35:02" (1/1) ... [2023-11-30 08:35:02,881 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 08:35:02" (1/1) ... [2023-11-30 08:35:02,882 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 08:35:02" (1/1) ... [2023-11-30 08:35:02,886 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 08:35:02" (1/1) ... [2023-11-30 08:35:02,887 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 08:35:02" (1/1) ... [2023-11-30 08:35:02,888 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-30 08:35:02,889 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-30 08:35:02,889 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-30 08:35:02,889 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-30 08:35:02,890 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 08:35:02" (1/1) ... [2023-11-30 08:35:02,893 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-30 08:35:02,902 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 08:35:02,916 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 08:35:02,964 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 08:35:02,984 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-30 08:35:02,984 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-30 08:35:02,984 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-30 08:35:02,984 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-30 08:35:02,984 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-30 08:35:02,984 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-30 08:35:02,985 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-30 08:35:02,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-30 08:35:02,986 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-30 08:35:02,986 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-30 08:35:02,986 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-30 08:35:02,986 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-30 08:35:02,987 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 08:35:03,077 INFO L241 CfgBuilder]: Building ICFG [2023-11-30 08:35:03,079 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-30 08:35:03,392 INFO L282 CfgBuilder]: Performing block encoding [2023-11-30 08:35:03,407 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-30 08:35:03,407 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-30 08:35:03,408 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 08:35:03 BoogieIcfgContainer [2023-11-30 08:35:03,408 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-30 08:35:03,410 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-30 08:35:03,410 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-30 08:35:03,412 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-30 08:35:03,412 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 08:35:02" (1/3) ... [2023-11-30 08:35:03,413 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cda3259 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 08:35:03, skipping insertion in model container [2023-11-30 08:35:03,413 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 08:35:02" (2/3) ... [2023-11-30 08:35:03,413 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cda3259 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 08:35:03, skipping insertion in model container [2023-11-30 08:35:03,413 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 08:35:03" (3/3) ... [2023-11-30 08:35:03,415 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-file-item-symm.wvr.c [2023-11-30 08:35:03,426 INFO L197 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-30 08:35:03,427 INFO L156 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2023-11-30 08:35:03,427 INFO L508 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-30 08:35:03,557 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-30 08:35:03,595 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 228 places, 240 transitions, 494 flow [2023-11-30 08:35:03,651 INFO L124 PetriNetUnfolderBase]: 19/238 cut-off events. [2023-11-30 08:35:03,652 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-30 08:35:03,658 INFO L83 FinitePrefix]: Finished finitePrefix Result has 247 conditions, 238 events. 19/238 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 507 event pairs, 0 based on Foata normal form. 0/207 useless extension candidates. Maximal degree in co-relation 157. Up to 2 conditions per place. [2023-11-30 08:35:03,659 INFO L82 GeneralOperation]: Start removeDead. Operand has 228 places, 240 transitions, 494 flow [2023-11-30 08:35:03,663 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 191 places, 200 transitions, 409 flow [2023-11-30 08:35:03,670 INFO L361 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-30 08:35:03,675 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;@53d7c429, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-30 08:35:03,676 INFO L363 AbstractCegarLoop]: Starting to check reachability of 26 error locations. [2023-11-30 08:35:03,689 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-30 08:35:03,689 INFO L124 PetriNetUnfolderBase]: 6/104 cut-off events. [2023-11-30 08:35:03,689 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-30 08:35:03,689 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:35:03,690 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] [2023-11-30 08:35:03,690 INFO L425 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2023-11-30 08:35:03,694 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:35:03,694 INFO L85 PathProgramCache]: Analyzing trace with hash -852542143, now seen corresponding path program 1 times [2023-11-30 08:35:03,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:35:03,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597689194] [2023-11-30 08:35:03,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:35:03,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:35:03,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:35:03,913 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 08:35:03,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:35:03,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1597689194] [2023-11-30 08:35:03,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1597689194] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:35:03,915 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:35:03,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-30 08:35:03,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877864112] [2023-11-30 08:35:03,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:35:03,924 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-30 08:35:03,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:35:03,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-30 08:35:03,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-30 08:35:03,971 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 204 out of 240 [2023-11-30 08:35:03,977 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 191 places, 200 transitions, 409 flow. Second operand has 4 states, 4 states have (on average 205.5) internal successors, (822), 4 states have internal predecessors, (822), 0 states have call successors, (0), 0 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 08:35:03,977 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:35:03,977 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 204 of 240 [2023-11-30 08:35:03,978 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:35:04,133 INFO L124 PetriNetUnfolderBase]: 60/485 cut-off events. [2023-11-30 08:35:04,133 INFO L125 PetriNetUnfolderBase]: For 40/41 co-relation queries the response was YES. [2023-11-30 08:35:04,138 INFO L83 FinitePrefix]: Finished finitePrefix Result has 660 conditions, 485 events. 60/485 cut-off events. For 40/41 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 2522 event pairs, 13 based on Foata normal form. 29/439 useless extension candidates. Maximal degree in co-relation 603. Up to 48 conditions per place. [2023-11-30 08:35:04,141 INFO L140 encePairwiseOnDemand]: 228/240 looper letters, 34 selfloop transitions, 5 changer transitions 0/208 dead transitions. [2023-11-30 08:35:04,141 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 193 places, 208 transitions, 509 flow [2023-11-30 08:35:04,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-30 08:35:04,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-30 08:35:04,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 868 transitions. [2023-11-30 08:35:04,157 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.9041666666666667 [2023-11-30 08:35:04,158 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 868 transitions. [2023-11-30 08:35:04,158 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 868 transitions. [2023-11-30 08:35:04,161 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:35:04,162 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 868 transitions. [2023-11-30 08:35:04,167 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 217.0) internal successors, (868), 4 states have internal predecessors, (868), 0 states have call successors, (0), 0 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 08:35:04,173 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 240.0) internal successors, (1200), 5 states have internal predecessors, (1200), 0 states have call successors, (0), 0 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 08:35:04,174 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 240.0) internal successors, (1200), 5 states have internal predecessors, (1200), 0 states have call successors, (0), 0 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 08:35:04,178 INFO L307 CegarLoopForPetriNet]: 191 programPoint places, 2 predicate places. [2023-11-30 08:35:04,178 INFO L500 AbstractCegarLoop]: Abstraction has has 193 places, 208 transitions, 509 flow [2023-11-30 08:35:04,178 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 205.5) internal successors, (822), 4 states have internal predecessors, (822), 0 states have call successors, (0), 0 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 08:35:04,179 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:35:04,179 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 08:35:04,179 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-30 08:35:04,179 INFO L425 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2023-11-30 08:35:04,179 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:35:04,180 INFO L85 PathProgramCache]: Analyzing trace with hash -659002033, now seen corresponding path program 1 times [2023-11-30 08:35:04,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:35:04,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598461872] [2023-11-30 08:35:04,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:35:04,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:35:04,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:35:04,361 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 08:35:04,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:35:04,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598461872] [2023-11-30 08:35:04,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [598461872] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:35:04,362 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:35:04,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-30 08:35:04,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163159248] [2023-11-30 08:35:04,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:35:04,363 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-30 08:35:04,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:35:04,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-30 08:35:04,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-30 08:35:04,365 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 198 out of 240 [2023-11-30 08:35:04,366 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 193 places, 208 transitions, 509 flow. Second operand has 6 states, 6 states have (on average 200.16666666666666) internal successors, (1201), 6 states have internal predecessors, (1201), 0 states have call successors, (0), 0 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 08:35:04,366 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:35:04,366 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 198 of 240 [2023-11-30 08:35:04,366 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:35:04,509 INFO L124 PetriNetUnfolderBase]: 86/554 cut-off events. [2023-11-30 08:35:04,509 INFO L125 PetriNetUnfolderBase]: For 93/96 co-relation queries the response was YES. [2023-11-30 08:35:04,511 INFO L83 FinitePrefix]: Finished finitePrefix Result has 921 conditions, 554 events. 86/554 cut-off events. For 93/96 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 2852 event pairs, 3 based on Foata normal form. 0/473 useless extension candidates. Maximal degree in co-relation 795. Up to 122 conditions per place. [2023-11-30 08:35:04,514 INFO L140 encePairwiseOnDemand]: 232/240 looper letters, 37 selfloop transitions, 8 changer transitions 0/211 dead transitions. [2023-11-30 08:35:04,514 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 197 places, 211 transitions, 613 flow [2023-11-30 08:35:04,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-30 08:35:04,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-30 08:35:04,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1223 transitions. [2023-11-30 08:35:04,516 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8493055555555555 [2023-11-30 08:35:04,517 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1223 transitions. [2023-11-30 08:35:04,517 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1223 transitions. [2023-11-30 08:35:04,518 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:35:04,518 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1223 transitions. [2023-11-30 08:35:04,520 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 203.83333333333334) internal successors, (1223), 6 states have internal predecessors, (1223), 0 states have call successors, (0), 0 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 08:35:04,522 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 240.0) internal successors, (1680), 7 states have internal predecessors, (1680), 0 states have call successors, (0), 0 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 08:35:04,523 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 240.0) internal successors, (1680), 7 states have internal predecessors, (1680), 0 states have call successors, (0), 0 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 08:35:04,524 INFO L307 CegarLoopForPetriNet]: 191 programPoint places, 6 predicate places. [2023-11-30 08:35:04,524 INFO L500 AbstractCegarLoop]: Abstraction has has 197 places, 211 transitions, 613 flow [2023-11-30 08:35:04,525 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 200.16666666666666) internal successors, (1201), 6 states have internal predecessors, (1201), 0 states have call successors, (0), 0 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 08:35:04,525 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:35:04,525 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] [2023-11-30 08:35:04,525 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-30 08:35:04,525 INFO L425 AbstractCegarLoop]: === Iteration 3 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2023-11-30 08:35:04,526 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:35:04,526 INFO L85 PathProgramCache]: Analyzing trace with hash 1600996120, now seen corresponding path program 1 times [2023-11-30 08:35:04,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:35:04,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126012683] [2023-11-30 08:35:04,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:35:04,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:35:04,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:35:04,643 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 08:35:04,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:35:04,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126012683] [2023-11-30 08:35:04,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2126012683] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:35:04,644 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:35:04,644 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-30 08:35:04,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222812640] [2023-11-30 08:35:04,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:35:04,645 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-30 08:35:04,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:35:04,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-30 08:35:04,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-30 08:35:04,648 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 204 out of 240 [2023-11-30 08:35:04,649 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 197 places, 211 transitions, 613 flow. Second operand has 4 states, 4 states have (on average 205.75) internal successors, (823), 4 states have internal predecessors, (823), 0 states have call successors, (0), 0 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 08:35:04,649 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:35:04,650 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 204 of 240 [2023-11-30 08:35:04,650 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:35:04,767 INFO L124 PetriNetUnfolderBase]: 120/666 cut-off events. [2023-11-30 08:35:04,767 INFO L125 PetriNetUnfolderBase]: For 492/598 co-relation queries the response was YES. [2023-11-30 08:35:04,770 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1296 conditions, 666 events. 120/666 cut-off events. For 492/598 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 4126 event pairs, 16 based on Foata normal form. 0/573 useless extension candidates. Maximal degree in co-relation 950. Up to 122 conditions per place. [2023-11-30 08:35:04,774 INFO L140 encePairwiseOnDemand]: 232/240 looper letters, 38 selfloop transitions, 5 changer transitions 0/223 dead transitions. [2023-11-30 08:35:04,776 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 199 places, 223 transitions, 737 flow [2023-11-30 08:35:04,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-30 08:35:04,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-30 08:35:04,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 858 transitions. [2023-11-30 08:35:04,779 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.89375 [2023-11-30 08:35:04,779 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 858 transitions. [2023-11-30 08:35:04,780 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 858 transitions. [2023-11-30 08:35:04,780 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:35:04,780 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 858 transitions. [2023-11-30 08:35:04,782 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 214.5) internal successors, (858), 4 states have internal predecessors, (858), 0 states have call successors, (0), 0 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 08:35:04,783 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 240.0) internal successors, (1200), 5 states have internal predecessors, (1200), 0 states have call successors, (0), 0 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 08:35:04,784 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 240.0) internal successors, (1200), 5 states have internal predecessors, (1200), 0 states have call successors, (0), 0 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 08:35:04,785 INFO L307 CegarLoopForPetriNet]: 191 programPoint places, 8 predicate places. [2023-11-30 08:35:04,785 INFO L500 AbstractCegarLoop]: Abstraction has has 199 places, 223 transitions, 737 flow [2023-11-30 08:35:04,786 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 205.75) internal successors, (823), 4 states have internal predecessors, (823), 0 states have call successors, (0), 0 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 08:35:04,786 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:35:04,786 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 08:35:04,786 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-30 08:35:04,786 INFO L425 AbstractCegarLoop]: === Iteration 4 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2023-11-30 08:35:04,787 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:35:04,787 INFO L85 PathProgramCache]: Analyzing trace with hash -1908727135, now seen corresponding path program 1 times [2023-11-30 08:35:04,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:35:04,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [956254943] [2023-11-30 08:35:04,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:35:04,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:35:04,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:35:04,911 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 08:35:04,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:35:04,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [956254943] [2023-11-30 08:35:04,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [956254943] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:35:04,911 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:35:04,912 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-30 08:35:04,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039542158] [2023-11-30 08:35:04,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:35:04,912 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-30 08:35:04,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:35:04,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-30 08:35:04,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-30 08:35:04,917 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 198 out of 240 [2023-11-30 08:35:04,918 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 199 places, 223 transitions, 737 flow. Second operand has 6 states, 6 states have (on average 200.33333333333334) internal successors, (1202), 6 states have internal predecessors, (1202), 0 states have call successors, (0), 0 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 08:35:04,918 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:35:04,919 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 198 of 240 [2023-11-30 08:35:04,919 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:35:05,098 INFO L124 PetriNetUnfolderBase]: 152/827 cut-off events. [2023-11-30 08:35:05,098 INFO L125 PetriNetUnfolderBase]: For 737/744 co-relation queries the response was YES. [2023-11-30 08:35:05,100 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1815 conditions, 827 events. 152/827 cut-off events. For 737/744 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 5368 event pairs, 5 based on Foata normal form. 0/711 useless extension candidates. Maximal degree in co-relation 1401. Up to 146 conditions per place. [2023-11-30 08:35:05,103 INFO L140 encePairwiseOnDemand]: 232/240 looper letters, 41 selfloop transitions, 10 changer transitions 0/226 dead transitions. [2023-11-30 08:35:05,103 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 203 places, 226 transitions, 865 flow [2023-11-30 08:35:05,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-30 08:35:05,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-30 08:35:05,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1223 transitions. [2023-11-30 08:35:05,105 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8493055555555555 [2023-11-30 08:35:05,105 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1223 transitions. [2023-11-30 08:35:05,105 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1223 transitions. [2023-11-30 08:35:05,106 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:35:05,106 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1223 transitions. [2023-11-30 08:35:05,108 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 203.83333333333334) internal successors, (1223), 6 states have internal predecessors, (1223), 0 states have call successors, (0), 0 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 08:35:05,110 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 240.0) internal successors, (1680), 7 states have internal predecessors, (1680), 0 states have call successors, (0), 0 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 08:35:05,111 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 240.0) internal successors, (1680), 7 states have internal predecessors, (1680), 0 states have call successors, (0), 0 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 08:35:05,113 INFO L307 CegarLoopForPetriNet]: 191 programPoint places, 12 predicate places. [2023-11-30 08:35:05,113 INFO L500 AbstractCegarLoop]: Abstraction has has 203 places, 226 transitions, 865 flow [2023-11-30 08:35:05,113 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 200.33333333333334) internal successors, (1202), 6 states have internal predecessors, (1202), 0 states have call successors, (0), 0 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 08:35:05,113 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:35:05,113 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 08:35:05,114 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-30 08:35:05,114 INFO L425 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2023-11-30 08:35:05,114 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:35:05,115 INFO L85 PathProgramCache]: Analyzing trace with hash -1751970922, now seen corresponding path program 1 times [2023-11-30 08:35:05,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:35:05,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699911463] [2023-11-30 08:35:05,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:35:05,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:35:05,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:35:05,182 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 08:35:05,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:35:05,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699911463] [2023-11-30 08:35:05,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [699911463] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:35:05,183 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:35:05,183 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-30 08:35:05,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414042266] [2023-11-30 08:35:05,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:35:05,183 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-30 08:35:05,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:35:05,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-30 08:35:05,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-30 08:35:05,185 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 198 out of 240 [2023-11-30 08:35:05,186 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 203 places, 226 transitions, 865 flow. Second operand has 6 states, 6 states have (on average 200.16666666666666) internal successors, (1201), 6 states have internal predecessors, (1201), 0 states have call successors, (0), 0 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 08:35:05,186 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:35:05,186 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 198 of 240 [2023-11-30 08:35:05,186 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:35:05,313 INFO L124 PetriNetUnfolderBase]: 150/821 cut-off events. [2023-11-30 08:35:05,313 INFO L125 PetriNetUnfolderBase]: For 1077/1086 co-relation queries the response was YES. [2023-11-30 08:35:05,316 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2029 conditions, 821 events. 150/821 cut-off events. For 1077/1086 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 5380 event pairs, 5 based on Foata normal form. 0/709 useless extension candidates. Maximal degree in co-relation 1573. Up to 146 conditions per place. [2023-11-30 08:35:05,320 INFO L140 encePairwiseOnDemand]: 232/240 looper letters, 40 selfloop transitions, 10 changer transitions 0/225 dead transitions. [2023-11-30 08:35:05,320 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 207 places, 225 transitions, 959 flow [2023-11-30 08:35:05,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-30 08:35:05,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-30 08:35:05,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1222 transitions. [2023-11-30 08:35:05,322 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8486111111111111 [2023-11-30 08:35:05,322 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1222 transitions. [2023-11-30 08:35:05,322 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1222 transitions. [2023-11-30 08:35:05,323 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:35:05,323 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1222 transitions. [2023-11-30 08:35:05,325 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 203.66666666666666) internal successors, (1222), 6 states have internal predecessors, (1222), 0 states have call successors, (0), 0 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 08:35:05,326 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 240.0) internal successors, (1680), 7 states have internal predecessors, (1680), 0 states have call successors, (0), 0 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 08:35:05,327 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 240.0) internal successors, (1680), 7 states have internal predecessors, (1680), 0 states have call successors, (0), 0 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 08:35:05,327 INFO L307 CegarLoopForPetriNet]: 191 programPoint places, 16 predicate places. [2023-11-30 08:35:05,327 INFO L500 AbstractCegarLoop]: Abstraction has has 207 places, 225 transitions, 959 flow [2023-11-30 08:35:05,328 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 200.16666666666666) internal successors, (1201), 6 states have internal predecessors, (1201), 0 states have call successors, (0), 0 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 08:35:05,328 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:35:05,328 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] [2023-11-30 08:35:05,328 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-30 08:35:05,328 INFO L425 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2023-11-30 08:35:05,328 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:35:05,329 INFO L85 PathProgramCache]: Analyzing trace with hash 1523476907, now seen corresponding path program 1 times [2023-11-30 08:35:05,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:35:05,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450903214] [2023-11-30 08:35:05,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:35:05,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:35:05,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:35:05,362 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 08:35:05,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:35:05,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1450903214] [2023-11-30 08:35:05,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1450903214] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:35:05,363 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:35:05,363 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-30 08:35:05,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855178788] [2023-11-30 08:35:05,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:35:05,363 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-30 08:35:05,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:35:05,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-30 08:35:05,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-30 08:35:05,364 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 204 out of 240 [2023-11-30 08:35:05,365 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 207 places, 225 transitions, 959 flow. Second operand has 4 states, 4 states have (on average 206.5) internal successors, (826), 4 states have internal predecessors, (826), 0 states have call successors, (0), 0 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 08:35:05,365 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:35:05,365 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 204 of 240 [2023-11-30 08:35:05,365 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:35:05,458 INFO L124 PetriNetUnfolderBase]: 146/817 cut-off events. [2023-11-30 08:35:05,458 INFO L125 PetriNetUnfolderBase]: For 1412/1423 co-relation queries the response was YES. [2023-11-30 08:35:05,461 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2204 conditions, 817 events. 146/817 cut-off events. For 1412/1423 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 5310 event pairs, 5 based on Foata normal form. 0/709 useless extension candidates. Maximal degree in co-relation 1713. Up to 146 conditions per place. [2023-11-30 08:35:05,464 INFO L140 encePairwiseOnDemand]: 235/240 looper letters, 41 selfloop transitions, 4 changer transitions 0/227 dead transitions. [2023-11-30 08:35:05,464 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 210 places, 227 transitions, 1086 flow [2023-11-30 08:35:05,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-30 08:35:05,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-30 08:35:05,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 853 transitions. [2023-11-30 08:35:05,466 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8885416666666667 [2023-11-30 08:35:05,466 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 853 transitions. [2023-11-30 08:35:05,466 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 853 transitions. [2023-11-30 08:35:05,467 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:35:05,467 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 853 transitions. [2023-11-30 08:35:05,468 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 213.25) internal successors, (853), 4 states have internal predecessors, (853), 0 states have call successors, (0), 0 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 08:35:05,469 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 240.0) internal successors, (1200), 5 states have internal predecessors, (1200), 0 states have call successors, (0), 0 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 08:35:05,469 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 240.0) internal successors, (1200), 5 states have internal predecessors, (1200), 0 states have call successors, (0), 0 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 08:35:05,470 INFO L307 CegarLoopForPetriNet]: 191 programPoint places, 19 predicate places. [2023-11-30 08:35:05,470 INFO L500 AbstractCegarLoop]: Abstraction has has 210 places, 227 transitions, 1086 flow [2023-11-30 08:35:05,470 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 206.5) internal successors, (826), 4 states have internal predecessors, (826), 0 states have call successors, (0), 0 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 08:35:05,470 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:35:05,471 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] [2023-11-30 08:35:05,471 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-30 08:35:05,471 INFO L425 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2023-11-30 08:35:05,471 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:35:05,471 INFO L85 PathProgramCache]: Analyzing trace with hash -1619026349, now seen corresponding path program 1 times [2023-11-30 08:35:05,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:35:05,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085545271] [2023-11-30 08:35:05,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:35:05,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:35:05,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:35:05,517 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 08:35:05,517 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:35:05,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085545271] [2023-11-30 08:35:05,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1085545271] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:35:05,517 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:35:05,517 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-30 08:35:05,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818835114] [2023-11-30 08:35:05,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:35:05,518 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-30 08:35:05,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:35:05,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-30 08:35:05,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-30 08:35:05,519 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 200 out of 240 [2023-11-30 08:35:05,520 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 210 places, 227 transitions, 1086 flow. Second operand has 5 states, 5 states have (on average 202.8) internal successors, (1014), 5 states have internal predecessors, (1014), 0 states have call successors, (0), 0 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 08:35:05,520 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:35:05,520 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 200 of 240 [2023-11-30 08:35:05,520 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:35:05,636 INFO L124 PetriNetUnfolderBase]: 152/843 cut-off events. [2023-11-30 08:35:05,636 INFO L125 PetriNetUnfolderBase]: For 1954/1967 co-relation queries the response was YES. [2023-11-30 08:35:05,639 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2477 conditions, 843 events. 152/843 cut-off events. For 1954/1967 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 5609 event pairs, 5 based on Foata normal form. 0/735 useless extension candidates. Maximal degree in co-relation 1951. Up to 146 conditions per place. [2023-11-30 08:35:05,643 INFO L140 encePairwiseOnDemand]: 232/240 looper letters, 46 selfloop transitions, 8 changer transitions 0/232 dead transitions. [2023-11-30 08:35:05,643 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 214 places, 232 transitions, 1218 flow [2023-11-30 08:35:05,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-30 08:35:05,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-30 08:35:05,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1246 transitions. [2023-11-30 08:35:05,645 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8652777777777778 [2023-11-30 08:35:05,645 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1246 transitions. [2023-11-30 08:35:05,645 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1246 transitions. [2023-11-30 08:35:05,646 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:35:05,646 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1246 transitions. [2023-11-30 08:35:05,647 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 207.66666666666666) internal successors, (1246), 6 states have internal predecessors, (1246), 0 states have call successors, (0), 0 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 08:35:05,649 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 240.0) internal successors, (1680), 7 states have internal predecessors, (1680), 0 states have call successors, (0), 0 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 08:35:05,649 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 240.0) internal successors, (1680), 7 states have internal predecessors, (1680), 0 states have call successors, (0), 0 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 08:35:05,650 INFO L307 CegarLoopForPetriNet]: 191 programPoint places, 23 predicate places. [2023-11-30 08:35:05,650 INFO L500 AbstractCegarLoop]: Abstraction has has 214 places, 232 transitions, 1218 flow [2023-11-30 08:35:05,650 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 202.8) internal successors, (1014), 5 states have internal predecessors, (1014), 0 states have call successors, (0), 0 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 08:35:05,650 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:35:05,653 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 08:35:05,653 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-30 08:35:05,653 INFO L425 AbstractCegarLoop]: === Iteration 8 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2023-11-30 08:35:05,654 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:35:05,654 INFO L85 PathProgramCache]: Analyzing trace with hash -1055800472, now seen corresponding path program 1 times [2023-11-30 08:35:05,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:35:05,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599330567] [2023-11-30 08:35:05,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:35:05,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:35:05,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:35:05,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 08:35:05,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:35:05,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1599330567] [2023-11-30 08:35:05,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1599330567] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:35:05,727 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:35:05,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-30 08:35:05,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149793221] [2023-11-30 08:35:05,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:35:05,728 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-30 08:35:05,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:35:05,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-30 08:35:05,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-30 08:35:05,729 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 198 out of 240 [2023-11-30 08:35:05,730 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 214 places, 232 transitions, 1218 flow. Second operand has 6 states, 6 states have (on average 200.33333333333334) internal successors, (1202), 6 states have internal predecessors, (1202), 0 states have call successors, (0), 0 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 08:35:05,730 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:35:05,730 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 198 of 240 [2023-11-30 08:35:05,730 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:35:05,843 INFO L124 PetriNetUnfolderBase]: 150/837 cut-off events. [2023-11-30 08:35:05,843 INFO L125 PetriNetUnfolderBase]: For 2339/2354 co-relation queries the response was YES. [2023-11-30 08:35:05,846 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2692 conditions, 837 events. 150/837 cut-off events. For 2339/2354 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 5597 event pairs, 5 based on Foata normal form. 0/733 useless extension candidates. Maximal degree in co-relation 2110. Up to 140 conditions per place. [2023-11-30 08:35:05,850 INFO L140 encePairwiseOnDemand]: 232/240 looper letters, 45 selfloop transitions, 10 changer transitions 0/231 dead transitions. [2023-11-30 08:35:05,850 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 218 places, 231 transitions, 1322 flow [2023-11-30 08:35:05,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-30 08:35:05,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-30 08:35:05,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1222 transitions. [2023-11-30 08:35:05,852 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8486111111111111 [2023-11-30 08:35:05,852 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1222 transitions. [2023-11-30 08:35:05,852 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1222 transitions. [2023-11-30 08:35:05,853 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:35:05,853 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1222 transitions. [2023-11-30 08:35:05,855 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 203.66666666666666) internal successors, (1222), 6 states have internal predecessors, (1222), 0 states have call successors, (0), 0 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 08:35:05,856 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 240.0) internal successors, (1680), 7 states have internal predecessors, (1680), 0 states have call successors, (0), 0 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 08:35:05,857 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 240.0) internal successors, (1680), 7 states have internal predecessors, (1680), 0 states have call successors, (0), 0 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 08:35:05,857 INFO L307 CegarLoopForPetriNet]: 191 programPoint places, 27 predicate places. [2023-11-30 08:35:05,857 INFO L500 AbstractCegarLoop]: Abstraction has has 218 places, 231 transitions, 1322 flow [2023-11-30 08:35:05,858 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 200.33333333333334) internal successors, (1202), 6 states have internal predecessors, (1202), 0 states have call successors, (0), 0 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 08:35:05,858 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:35:05,858 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] [2023-11-30 08:35:05,858 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-30 08:35:05,858 INFO L425 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2023-11-30 08:35:05,858 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:35:05,858 INFO L85 PathProgramCache]: Analyzing trace with hash -355835216, now seen corresponding path program 1 times [2023-11-30 08:35:05,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:35:05,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925815543] [2023-11-30 08:35:05,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:35:05,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:35:05,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:35:05,962 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 08:35:05,963 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:35:05,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925815543] [2023-11-30 08:35:05,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1925815543] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:35:05,963 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:35:05,963 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-30 08:35:05,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485390665] [2023-11-30 08:35:05,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:35:05,963 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-30 08:35:05,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:35:05,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-30 08:35:05,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-11-30 08:35:05,965 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 193 out of 240 [2023-11-30 08:35:05,967 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 218 places, 231 transitions, 1322 flow. Second operand has 8 states, 8 states have (on average 195.125) internal successors, (1561), 8 states have internal predecessors, (1561), 0 states have call successors, (0), 0 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 08:35:05,967 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:35:05,967 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 193 of 240 [2023-11-30 08:35:05,967 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:35:06,146 INFO L124 PetriNetUnfolderBase]: 156/839 cut-off events. [2023-11-30 08:35:06,147 INFO L125 PetriNetUnfolderBase]: For 3022/3039 co-relation queries the response was YES. [2023-11-30 08:35:06,150 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2956 conditions, 839 events. 156/839 cut-off events. For 3022/3039 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 5604 event pairs, 5 based on Foata normal form. 0/739 useless extension candidates. Maximal degree in co-relation 2333. Up to 140 conditions per place. [2023-11-30 08:35:06,154 INFO L140 encePairwiseOnDemand]: 228/240 looper letters, 50 selfloop transitions, 14 changer transitions 0/236 dead transitions. [2023-11-30 08:35:06,154 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 225 places, 236 transitions, 1531 flow [2023-11-30 08:35:06,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-30 08:35:06,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-11-30 08:35:06,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1590 transitions. [2023-11-30 08:35:06,157 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.828125 [2023-11-30 08:35:06,157 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1590 transitions. [2023-11-30 08:35:06,157 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1590 transitions. [2023-11-30 08:35:06,158 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:35:06,158 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1590 transitions. [2023-11-30 08:35:06,160 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 198.75) internal successors, (1590), 8 states have internal predecessors, (1590), 0 states have call successors, (0), 0 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 08:35:06,162 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 240.0) internal successors, (2160), 9 states have internal predecessors, (2160), 0 states have call successors, (0), 0 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 08:35:06,163 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 240.0) internal successors, (2160), 9 states have internal predecessors, (2160), 0 states have call successors, (0), 0 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 08:35:06,164 INFO L307 CegarLoopForPetriNet]: 191 programPoint places, 34 predicate places. [2023-11-30 08:35:06,164 INFO L500 AbstractCegarLoop]: Abstraction has has 225 places, 236 transitions, 1531 flow [2023-11-30 08:35:06,165 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 195.125) internal successors, (1561), 8 states have internal predecessors, (1561), 0 states have call successors, (0), 0 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 08:35:06,165 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:35:06,165 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] [2023-11-30 08:35:06,165 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-30 08:35:06,165 INFO L425 AbstractCegarLoop]: === Iteration 10 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2023-11-30 08:35:06,165 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:35:06,165 INFO L85 PathProgramCache]: Analyzing trace with hash 1629924450, now seen corresponding path program 1 times [2023-11-30 08:35:06,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:35:06,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [507554944] [2023-11-30 08:35:06,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:35:06,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:35:06,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:35:06,200 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 08:35:06,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:35:06,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [507554944] [2023-11-30 08:35:06,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [507554944] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:35:06,201 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:35:06,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-30 08:35:06,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198187383] [2023-11-30 08:35:06,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:35:06,202 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-30 08:35:06,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:35:06,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-30 08:35:06,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-30 08:35:06,206 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 204 out of 240 [2023-11-30 08:35:06,207 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 225 places, 236 transitions, 1531 flow. Second operand has 4 states, 4 states have (on average 206.75) internal successors, (827), 4 states have internal predecessors, (827), 0 states have call successors, (0), 0 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 08:35:06,207 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:35:06,207 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 204 of 240 [2023-11-30 08:35:06,207 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:35:06,329 INFO L124 PetriNetUnfolderBase]: 152/835 cut-off events. [2023-11-30 08:35:06,329 INFO L125 PetriNetUnfolderBase]: For 3435/3454 co-relation queries the response was YES. [2023-11-30 08:35:06,333 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3137 conditions, 835 events. 152/835 cut-off events. For 3435/3454 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 5595 event pairs, 5 based on Foata normal form. 0/739 useless extension candidates. Maximal degree in co-relation 2453. Up to 136 conditions per place. [2023-11-30 08:35:06,336 INFO L140 encePairwiseOnDemand]: 235/240 looper letters, 49 selfloop transitions, 4 changer transitions 0/238 dead transitions. [2023-11-30 08:35:06,336 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 228 places, 238 transitions, 1698 flow [2023-11-30 08:35:06,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-30 08:35:06,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-30 08:35:06,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 853 transitions. [2023-11-30 08:35:06,386 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8885416666666667 [2023-11-30 08:35:06,386 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 853 transitions. [2023-11-30 08:35:06,386 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 853 transitions. [2023-11-30 08:35:06,386 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:35:06,386 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 853 transitions. [2023-11-30 08:35:06,387 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 213.25) internal successors, (853), 4 states have internal predecessors, (853), 0 states have call successors, (0), 0 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 08:35:06,389 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 240.0) internal successors, (1200), 5 states have internal predecessors, (1200), 0 states have call successors, (0), 0 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 08:35:06,389 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 240.0) internal successors, (1200), 5 states have internal predecessors, (1200), 0 states have call successors, (0), 0 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 08:35:06,390 INFO L307 CegarLoopForPetriNet]: 191 programPoint places, 37 predicate places. [2023-11-30 08:35:06,390 INFO L500 AbstractCegarLoop]: Abstraction has has 228 places, 238 transitions, 1698 flow [2023-11-30 08:35:06,390 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 206.75) internal successors, (827), 4 states have internal predecessors, (827), 0 states have call successors, (0), 0 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 08:35:06,391 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:35:06,391 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 08:35:06,391 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-30 08:35:06,391 INFO L425 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2023-11-30 08:35:06,391 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:35:06,391 INFO L85 PathProgramCache]: Analyzing trace with hash 1854010845, now seen corresponding path program 1 times [2023-11-30 08:35:06,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:35:06,393 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [698784504] [2023-11-30 08:35:06,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:35:06,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:35:06,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:35:06,472 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 08:35:06,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:35:06,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [698784504] [2023-11-30 08:35:06,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [698784504] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:35:06,473 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:35:06,473 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-30 08:35:06,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770367338] [2023-11-30 08:35:06,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:35:06,473 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-30 08:35:06,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:35:06,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-30 08:35:06,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-11-30 08:35:06,475 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 193 out of 240 [2023-11-30 08:35:06,485 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 228 places, 238 transitions, 1698 flow. Second operand has 8 states, 8 states have (on average 195.25) internal successors, (1562), 8 states have internal predecessors, (1562), 0 states have call successors, (0), 0 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 08:35:06,485 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:35:06,485 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 193 of 240 [2023-11-30 08:35:06,486 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:35:06,648 INFO L124 PetriNetUnfolderBase]: 162/849 cut-off events. [2023-11-30 08:35:06,649 INFO L125 PetriNetUnfolderBase]: For 4296/4317 co-relation queries the response was YES. [2023-11-30 08:35:06,652 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3516 conditions, 849 events. 162/849 cut-off events. For 4296/4317 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 5713 event pairs, 5 based on Foata normal form. 0/757 useless extension candidates. Maximal degree in co-relation 2791. Up to 148 conditions per place. [2023-11-30 08:35:06,656 INFO L140 encePairwiseOnDemand]: 228/240 looper letters, 63 selfloop transitions, 16 changer transitions 0/247 dead transitions. [2023-11-30 08:35:06,657 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 235 places, 247 transitions, 2018 flow [2023-11-30 08:35:06,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-30 08:35:06,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-11-30 08:35:06,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1590 transitions. [2023-11-30 08:35:06,659 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.828125 [2023-11-30 08:35:06,659 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1590 transitions. [2023-11-30 08:35:06,659 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1590 transitions. [2023-11-30 08:35:06,660 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:35:06,660 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1590 transitions. [2023-11-30 08:35:06,663 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 198.75) internal successors, (1590), 8 states have internal predecessors, (1590), 0 states have call successors, (0), 0 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 08:35:06,665 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 240.0) internal successors, (2160), 9 states have internal predecessors, (2160), 0 states have call successors, (0), 0 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 08:35:06,665 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 240.0) internal successors, (2160), 9 states have internal predecessors, (2160), 0 states have call successors, (0), 0 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 08:35:06,665 INFO L307 CegarLoopForPetriNet]: 191 programPoint places, 44 predicate places. [2023-11-30 08:35:06,665 INFO L500 AbstractCegarLoop]: Abstraction has has 235 places, 247 transitions, 2018 flow [2023-11-30 08:35:06,666 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 195.25) internal successors, (1562), 8 states have internal predecessors, (1562), 0 states have call successors, (0), 0 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 08:35:06,666 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:35:06,666 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, 1] [2023-11-30 08:35:06,666 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-30 08:35:06,666 INFO L425 AbstractCegarLoop]: === Iteration 12 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2023-11-30 08:35:06,666 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:35:06,666 INFO L85 PathProgramCache]: Analyzing trace with hash -1579452072, now seen corresponding path program 1 times [2023-11-30 08:35:06,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:35:06,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037391714] [2023-11-30 08:35:06,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:35:06,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:35:06,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:35:06,738 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 08:35:06,738 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:35:06,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2037391714] [2023-11-30 08:35:06,739 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2037391714] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:35:06,739 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:35:06,739 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-30 08:35:06,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804101836] [2023-11-30 08:35:06,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:35:06,739 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-30 08:35:06,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:35:06,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-30 08:35:06,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-11-30 08:35:06,740 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 240 [2023-11-30 08:35:06,741 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 235 places, 247 transitions, 2018 flow. Second operand has 6 states, 6 states have (on average 194.0) internal successors, (1164), 6 states have internal predecessors, (1164), 0 states have call successors, (0), 0 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 08:35:06,741 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:35:06,741 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 240 [2023-11-30 08:35:06,741 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:35:06,894 INFO L124 PetriNetUnfolderBase]: 190/873 cut-off events. [2023-11-30 08:35:06,894 INFO L125 PetriNetUnfolderBase]: For 7232/7255 co-relation queries the response was YES. [2023-11-30 08:35:06,898 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4234 conditions, 873 events. 190/873 cut-off events. For 7232/7255 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 6002 event pairs, 5 based on Foata normal form. 0/785 useless extension candidates. Maximal degree in co-relation 3475. Up to 190 conditions per place. [2023-11-30 08:35:06,903 INFO L140 encePairwiseOnDemand]: 231/240 looper letters, 80 selfloop transitions, 10 changer transitions 0/266 dead transitions. [2023-11-30 08:35:06,903 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 240 places, 266 transitions, 2422 flow [2023-11-30 08:35:06,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-30 08:35:06,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-30 08:35:06,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1389 transitions. [2023-11-30 08:35:06,907 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8267857142857142 [2023-11-30 08:35:06,907 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1389 transitions. [2023-11-30 08:35:06,907 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1389 transitions. [2023-11-30 08:35:06,907 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:35:06,907 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1389 transitions. [2023-11-30 08:35:06,909 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 198.42857142857142) internal successors, (1389), 7 states have internal predecessors, (1389), 0 states have call successors, (0), 0 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 08:35:06,911 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 240.0) internal successors, (1920), 8 states have internal predecessors, (1920), 0 states have call successors, (0), 0 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 08:35:06,911 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 240.0) internal successors, (1920), 8 states have internal predecessors, (1920), 0 states have call successors, (0), 0 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 08:35:06,913 INFO L307 CegarLoopForPetriNet]: 191 programPoint places, 49 predicate places. [2023-11-30 08:35:06,913 INFO L500 AbstractCegarLoop]: Abstraction has has 240 places, 266 transitions, 2422 flow [2023-11-30 08:35:06,913 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 194.0) internal successors, (1164), 6 states have internal predecessors, (1164), 0 states have call successors, (0), 0 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 08:35:06,913 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:35:06,913 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, 1] [2023-11-30 08:35:06,913 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-30 08:35:06,914 INFO L425 AbstractCegarLoop]: === Iteration 13 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2023-11-30 08:35:06,914 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:35:06,914 INFO L85 PathProgramCache]: Analyzing trace with hash -126064795, now seen corresponding path program 1 times [2023-11-30 08:35:06,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:35:06,914 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359290372] [2023-11-30 08:35:06,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:35:06,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:35:06,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:35:06,970 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 08:35:06,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:35:06,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1359290372] [2023-11-30 08:35:06,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1359290372] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:35:06,970 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:35:06,970 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-30 08:35:06,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123692537] [2023-11-30 08:35:06,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:35:06,971 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-30 08:35:06,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:35:06,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-30 08:35:06,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-30 08:35:06,972 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 200 out of 240 [2023-11-30 08:35:06,973 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 240 places, 266 transitions, 2422 flow. Second operand has 5 states, 5 states have (on average 203.0) internal successors, (1015), 5 states have internal predecessors, (1015), 0 states have call successors, (0), 0 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 08:35:06,973 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:35:06,973 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 200 of 240 [2023-11-30 08:35:06,973 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:35:07,144 INFO L124 PetriNetUnfolderBase]: 196/899 cut-off events. [2023-11-30 08:35:07,144 INFO L125 PetriNetUnfolderBase]: For 8836/8861 co-relation queries the response was YES. [2023-11-30 08:35:07,149 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4575 conditions, 899 events. 196/899 cut-off events. For 8836/8861 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 6217 event pairs, 5 based on Foata normal form. 0/811 useless extension candidates. Maximal degree in co-relation 3642. Up to 197 conditions per place. [2023-11-30 08:35:07,156 INFO L140 encePairwiseOnDemand]: 232/240 looper letters, 66 selfloop transitions, 8 changer transitions 0/271 dead transitions. [2023-11-30 08:35:07,156 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 244 places, 271 transitions, 2618 flow [2023-11-30 08:35:07,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-30 08:35:07,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-30 08:35:07,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1246 transitions. [2023-11-30 08:35:07,158 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8652777777777778 [2023-11-30 08:35:07,158 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1246 transitions. [2023-11-30 08:35:07,159 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1246 transitions. [2023-11-30 08:35:07,159 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:35:07,159 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1246 transitions. [2023-11-30 08:35:07,161 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 207.66666666666666) internal successors, (1246), 6 states have internal predecessors, (1246), 0 states have call successors, (0), 0 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 08:35:07,163 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 240.0) internal successors, (1680), 7 states have internal predecessors, (1680), 0 states have call successors, (0), 0 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 08:35:07,163 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 240.0) internal successors, (1680), 7 states have internal predecessors, (1680), 0 states have call successors, (0), 0 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 08:35:07,164 INFO L307 CegarLoopForPetriNet]: 191 programPoint places, 53 predicate places. [2023-11-30 08:35:07,164 INFO L500 AbstractCegarLoop]: Abstraction has has 244 places, 271 transitions, 2618 flow [2023-11-30 08:35:07,164 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 203.0) internal successors, (1015), 5 states have internal predecessors, (1015), 0 states have call successors, (0), 0 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 08:35:07,165 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:35:07,165 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, 1, 1] [2023-11-30 08:35:07,165 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-30 08:35:07,165 INFO L425 AbstractCegarLoop]: === Iteration 14 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2023-11-30 08:35:07,165 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:35:07,165 INFO L85 PathProgramCache]: Analyzing trace with hash 1203807916, now seen corresponding path program 1 times [2023-11-30 08:35:07,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:35:07,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219534485] [2023-11-30 08:35:07,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:35:07,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:35:07,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:35:07,248 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 08:35:07,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:35:07,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219534485] [2023-11-30 08:35:07,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1219534485] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:35:07,249 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:35:07,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-30 08:35:07,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148262155] [2023-11-30 08:35:07,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:35:07,250 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-30 08:35:07,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:35:07,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-30 08:35:07,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-11-30 08:35:07,251 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 240 [2023-11-30 08:35:07,252 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 244 places, 271 transitions, 2618 flow. Second operand has 6 states, 6 states have (on average 194.16666666666666) internal successors, (1165), 6 states have internal predecessors, (1165), 0 states have call successors, (0), 0 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 08:35:07,252 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:35:07,252 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 240 [2023-11-30 08:35:07,252 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:35:07,441 INFO L124 PetriNetUnfolderBase]: 194/893 cut-off events. [2023-11-30 08:35:07,441 INFO L125 PetriNetUnfolderBase]: For 9522/9549 co-relation queries the response was YES. [2023-11-30 08:35:07,447 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4877 conditions, 893 events. 194/893 cut-off events. For 9522/9549 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 6172 event pairs, 5 based on Foata normal form. 0/809 useless extension candidates. Maximal degree in co-relation 3903. Up to 252 conditions per place. [2023-11-30 08:35:07,456 INFO L140 encePairwiseOnDemand]: 231/240 looper letters, 96 selfloop transitions, 12 changer transitions 0/285 dead transitions. [2023-11-30 08:35:07,456 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 249 places, 285 transitions, 3119 flow [2023-11-30 08:35:07,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-30 08:35:07,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-30 08:35:07,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1381 transitions. [2023-11-30 08:35:07,459 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8220238095238095 [2023-11-30 08:35:07,459 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1381 transitions. [2023-11-30 08:35:07,459 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1381 transitions. [2023-11-30 08:35:07,460 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:35:07,460 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1381 transitions. [2023-11-30 08:35:07,462 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 197.28571428571428) internal successors, (1381), 7 states have internal predecessors, (1381), 0 states have call successors, (0), 0 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 08:35:07,463 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 240.0) internal successors, (1920), 8 states have internal predecessors, (1920), 0 states have call successors, (0), 0 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 08:35:07,464 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 240.0) internal successors, (1920), 8 states have internal predecessors, (1920), 0 states have call successors, (0), 0 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 08:35:07,464 INFO L307 CegarLoopForPetriNet]: 191 programPoint places, 58 predicate places. [2023-11-30 08:35:07,464 INFO L500 AbstractCegarLoop]: Abstraction has has 249 places, 285 transitions, 3119 flow [2023-11-30 08:35:07,465 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 194.16666666666666) internal successors, (1165), 6 states have internal predecessors, (1165), 0 states have call successors, (0), 0 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 08:35:07,465 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:35:07,465 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, 1, 1, 1, 1] [2023-11-30 08:35:07,465 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-30 08:35:07,465 INFO L425 AbstractCegarLoop]: === Iteration 15 === Targeting thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2023-11-30 08:35:07,465 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:35:07,465 INFO L85 PathProgramCache]: Analyzing trace with hash 2075542407, now seen corresponding path program 1 times [2023-11-30 08:35:07,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:35:07,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [184141415] [2023-11-30 08:35:07,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:35:07,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:35:07,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:35:07,553 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 08:35:07,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:35:07,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [184141415] [2023-11-30 08:35:07,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [184141415] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:35:07,554 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:35:07,554 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-30 08:35:07,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199463073] [2023-11-30 08:35:07,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:35:07,554 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-30 08:35:07,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:35:07,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-30 08:35:07,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-11-30 08:35:07,557 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 193 out of 240 [2023-11-30 08:35:07,558 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 249 places, 285 transitions, 3119 flow. Second operand has 8 states, 8 states have (on average 195.25) internal successors, (1562), 8 states have internal predecessors, (1562), 0 states have call successors, (0), 0 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 08:35:07,558 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:35:07,558 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 193 of 240 [2023-11-30 08:35:07,558 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:35:07,747 INFO L124 PetriNetUnfolderBase]: 200/895 cut-off events. [2023-11-30 08:35:07,747 INFO L125 PetriNetUnfolderBase]: For 10985/11014 co-relation queries the response was YES. [2023-11-30 08:35:07,753 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5201 conditions, 895 events. 200/895 cut-off events. For 10985/11014 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 6220 event pairs, 5 based on Foata normal form. 0/815 useless extension candidates. Maximal degree in co-relation 4155. Up to 252 conditions per place. [2023-11-30 08:35:07,758 INFO L140 encePairwiseOnDemand]: 228/240 looper letters, 79 selfloop transitions, 21 changer transitions 0/290 dead transitions. [2023-11-30 08:35:07,758 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 256 places, 290 transitions, 3448 flow [2023-11-30 08:35:07,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-30 08:35:07,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-11-30 08:35:07,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1590 transitions. [2023-11-30 08:35:07,760 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.828125 [2023-11-30 08:35:07,761 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1590 transitions. [2023-11-30 08:35:07,761 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1590 transitions. [2023-11-30 08:35:07,761 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:35:07,761 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1590 transitions. [2023-11-30 08:35:07,763 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 198.75) internal successors, (1590), 8 states have internal predecessors, (1590), 0 states have call successors, (0), 0 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 08:35:07,765 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 240.0) internal successors, (2160), 9 states have internal predecessors, (2160), 0 states have call successors, (0), 0 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 08:35:07,766 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 240.0) internal successors, (2160), 9 states have internal predecessors, (2160), 0 states have call successors, (0), 0 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 08:35:07,767 INFO L307 CegarLoopForPetriNet]: 191 programPoint places, 65 predicate places. [2023-11-30 08:35:07,767 INFO L500 AbstractCegarLoop]: Abstraction has has 256 places, 290 transitions, 3448 flow [2023-11-30 08:35:07,767 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 195.25) internal successors, (1562), 8 states have internal predecessors, (1562), 0 states have call successors, (0), 0 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 08:35:07,767 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:35:07,767 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, 1, 1, 1, 1, 1] [2023-11-30 08:35:07,767 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-30 08:35:07,767 INFO L425 AbstractCegarLoop]: === Iteration 16 === Targeting thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2023-11-30 08:35:07,767 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:35:07,768 INFO L85 PathProgramCache]: Analyzing trace with hash -82694097, now seen corresponding path program 1 times [2023-11-30 08:35:07,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:35:07,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264330768] [2023-11-30 08:35:07,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:35:07,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:35:07,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:35:07,841 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 08:35:07,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:35:07,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [264330768] [2023-11-30 08:35:07,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [264330768] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:35:07,843 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:35:07,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-30 08:35:07,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133653885] [2023-11-30 08:35:07,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:35:07,843 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-30 08:35:07,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:35:07,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-30 08:35:07,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-11-30 08:35:07,845 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 193 out of 240 [2023-11-30 08:35:07,846 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 256 places, 290 transitions, 3448 flow. Second operand has 8 states, 8 states have (on average 195.375) internal successors, (1563), 8 states have internal predecessors, (1563), 0 states have call successors, (0), 0 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 08:35:07,846 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:35:07,846 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 193 of 240 [2023-11-30 08:35:07,846 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:35:08,054 INFO L124 PetriNetUnfolderBase]: 210/909 cut-off events. [2023-11-30 08:35:08,054 INFO L125 PetriNetUnfolderBase]: For 12754/12785 co-relation queries the response was YES. [2023-11-30 08:35:08,058 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5650 conditions, 909 events. 210/909 cut-off events. For 12754/12785 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 6334 event pairs, 5 based on Foata normal form. 0/833 useless extension candidates. Maximal degree in co-relation 4497. Up to 253 conditions per place. [2023-11-30 08:35:08,064 INFO L140 encePairwiseOnDemand]: 228/240 looper letters, 86 selfloop transitions, 23 changer transitions 3/299 dead transitions. [2023-11-30 08:35:08,064 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 263 places, 299 transitions, 3890 flow [2023-11-30 08:35:08,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-30 08:35:08,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-11-30 08:35:08,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1590 transitions. [2023-11-30 08:35:08,067 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.828125 [2023-11-30 08:35:08,067 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1590 transitions. [2023-11-30 08:35:08,067 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1590 transitions. [2023-11-30 08:35:08,068 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:35:08,068 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1590 transitions. [2023-11-30 08:35:08,070 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 198.75) internal successors, (1590), 8 states have internal predecessors, (1590), 0 states have call successors, (0), 0 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 08:35:08,072 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 240.0) internal successors, (2160), 9 states have internal predecessors, (2160), 0 states have call successors, (0), 0 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 08:35:08,072 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 240.0) internal successors, (2160), 9 states have internal predecessors, (2160), 0 states have call successors, (0), 0 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 08:35:08,072 INFO L307 CegarLoopForPetriNet]: 191 programPoint places, 72 predicate places. [2023-11-30 08:35:08,073 INFO L500 AbstractCegarLoop]: Abstraction has has 263 places, 299 transitions, 3890 flow [2023-11-30 08:35:08,074 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 195.375) internal successors, (1563), 8 states have internal predecessors, (1563), 0 states have call successors, (0), 0 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 08:35:08,074 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:35:08,074 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, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 08:35:08,074 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-30 08:35:08,074 INFO L425 AbstractCegarLoop]: === Iteration 17 === Targeting thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2023-11-30 08:35:08,075 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:35:08,075 INFO L85 PathProgramCache]: Analyzing trace with hash 1262907466, now seen corresponding path program 1 times [2023-11-30 08:35:08,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:35:08,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174589879] [2023-11-30 08:35:08,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:35:08,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:35:08,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:35:08,144 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 08:35:08,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:35:08,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174589879] [2023-11-30 08:35:08,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [174589879] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:35:08,145 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:35:08,145 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-30 08:35:08,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013844734] [2023-11-30 08:35:08,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:35:08,145 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-30 08:35:08,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:35:08,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-30 08:35:08,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-11-30 08:35:08,147 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 240 [2023-11-30 08:35:08,147 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 263 places, 299 transitions, 3890 flow. Second operand has 6 states, 6 states have (on average 194.16666666666666) internal successors, (1165), 6 states have internal predecessors, (1165), 0 states have call successors, (0), 0 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 08:35:08,147 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:35:08,147 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 240 [2023-11-30 08:35:08,147 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:35:08,327 INFO L124 PetriNetUnfolderBase]: 238/933 cut-off events. [2023-11-30 08:35:08,327 INFO L125 PetriNetUnfolderBase]: For 19066/19099 co-relation queries the response was YES. [2023-11-30 08:35:08,333 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6518 conditions, 933 events. 238/933 cut-off events. For 19066/19099 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 6957 event pairs, 5 based on Foata normal form. 0/861 useless extension candidates. Maximal degree in co-relation 4718. Up to 282 conditions per place. [2023-11-30 08:35:08,337 INFO L140 encePairwiseOnDemand]: 231/240 looper letters, 90 selfloop transitions, 10 changer transitions 16/318 dead transitions. [2023-11-30 08:35:08,337 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 268 places, 318 transitions, 4426 flow [2023-11-30 08:35:08,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-30 08:35:08,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-30 08:35:08,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1389 transitions. [2023-11-30 08:35:08,340 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8267857142857142 [2023-11-30 08:35:08,340 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1389 transitions. [2023-11-30 08:35:08,340 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1389 transitions. [2023-11-30 08:35:08,341 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:35:08,341 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1389 transitions. [2023-11-30 08:35:08,342 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 198.42857142857142) internal successors, (1389), 7 states have internal predecessors, (1389), 0 states have call successors, (0), 0 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 08:35:08,344 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 240.0) internal successors, (1920), 8 states have internal predecessors, (1920), 0 states have call successors, (0), 0 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 08:35:08,344 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 240.0) internal successors, (1920), 8 states have internal predecessors, (1920), 0 states have call successors, (0), 0 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 08:35:08,345 INFO L307 CegarLoopForPetriNet]: 191 programPoint places, 77 predicate places. [2023-11-30 08:35:08,345 INFO L500 AbstractCegarLoop]: Abstraction has has 268 places, 318 transitions, 4426 flow [2023-11-30 08:35:08,345 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 194.16666666666666) internal successors, (1165), 6 states have internal predecessors, (1165), 0 states have call successors, (0), 0 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 08:35:08,345 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:35:08,345 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, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 08:35:08,345 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-11-30 08:35:08,345 INFO L425 AbstractCegarLoop]: === Iteration 18 === Targeting thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2023-11-30 08:35:08,345 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:35:08,345 INFO L85 PathProgramCache]: Analyzing trace with hash -877359549, now seen corresponding path program 1 times [2023-11-30 08:35:08,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:35:08,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1105727450] [2023-11-30 08:35:08,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:35:08,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:35:08,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:35:08,426 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 08:35:08,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:35:08,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1105727450] [2023-11-30 08:35:08,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1105727450] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:35:08,427 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:35:08,427 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-30 08:35:08,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47372721] [2023-11-30 08:35:08,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:35:08,427 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-30 08:35:08,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:35:08,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-30 08:35:08,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-11-30 08:35:08,428 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 240 [2023-11-30 08:35:08,429 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 268 places, 318 transitions, 4426 flow. Second operand has 6 states, 6 states have (on average 194.33333333333334) internal successors, (1166), 6 states have internal predecessors, (1166), 0 states have call successors, (0), 0 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 08:35:08,429 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:35:08,429 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 240 [2023-11-30 08:35:08,429 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:35:08,623 INFO L124 PetriNetUnfolderBase]: 236/927 cut-off events. [2023-11-30 08:35:08,624 INFO L125 PetriNetUnfolderBase]: For 20247/20282 co-relation queries the response was YES. [2023-11-30 08:35:08,629 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6844 conditions, 927 events. 236/927 cut-off events. For 20247/20282 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 6856 event pairs, 5 based on Foata normal form. 0/859 useless extension candidates. Maximal degree in co-relation 4939. Up to 281 conditions per place. [2023-11-30 08:35:08,632 INFO L140 encePairwiseOnDemand]: 231/240 looper letters, 0 selfloop transitions, 0 changer transitions 332/332 dead transitions. [2023-11-30 08:35:08,632 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 273 places, 332 transitions, 5047 flow [2023-11-30 08:35:08,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-30 08:35:08,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-30 08:35:08,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1381 transitions. [2023-11-30 08:35:08,634 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8220238095238095 [2023-11-30 08:35:08,634 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1381 transitions. [2023-11-30 08:35:08,634 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1381 transitions. [2023-11-30 08:35:08,634 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:35:08,634 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1381 transitions. [2023-11-30 08:35:08,635 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 197.28571428571428) internal successors, (1381), 7 states have internal predecessors, (1381), 0 states have call successors, (0), 0 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 08:35:08,637 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 240.0) internal successors, (1920), 8 states have internal predecessors, (1920), 0 states have call successors, (0), 0 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 08:35:08,637 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 240.0) internal successors, (1920), 8 states have internal predecessors, (1920), 0 states have call successors, (0), 0 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 08:35:08,639 INFO L307 CegarLoopForPetriNet]: 191 programPoint places, 82 predicate places. [2023-11-30 08:35:08,639 INFO L500 AbstractCegarLoop]: Abstraction has has 273 places, 332 transitions, 5047 flow [2023-11-30 08:35:08,639 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 194.33333333333334) internal successors, (1166), 6 states have internal predecessors, (1166), 0 states have call successors, (0), 0 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 08:35:08,645 INFO L143 wickiGriesTestDumper]: Dumping Owicki-Gries test to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/chl-file-item-symm.wvr.c_BEv2_AllErrorsAtOnce [2023-11-30 08:35:08,712 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 26 remaining) [2023-11-30 08:35:08,713 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 26 remaining) [2023-11-30 08:35:08,713 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 26 remaining) [2023-11-30 08:35:08,713 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 26 remaining) [2023-11-30 08:35:08,713 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 26 remaining) [2023-11-30 08:35:08,713 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 26 remaining) [2023-11-30 08:35:08,713 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 26 remaining) [2023-11-30 08:35:08,713 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 26 remaining) [2023-11-30 08:35:08,713 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 26 remaining) [2023-11-30 08:35:08,713 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 26 remaining) [2023-11-30 08:35:08,713 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 26 remaining) [2023-11-30 08:35:08,713 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 26 remaining) [2023-11-30 08:35:08,713 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (13 of 26 remaining) [2023-11-30 08:35:08,713 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 26 remaining) [2023-11-30 08:35:08,714 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 26 remaining) [2023-11-30 08:35:08,714 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 26 remaining) [2023-11-30 08:35:08,714 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 26 remaining) [2023-11-30 08:35:08,714 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 26 remaining) [2023-11-30 08:35:08,714 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 26 remaining) [2023-11-30 08:35:08,714 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 26 remaining) [2023-11-30 08:35:08,714 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 26 remaining) [2023-11-30 08:35:08,714 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 26 remaining) [2023-11-30 08:35:08,714 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 26 remaining) [2023-11-30 08:35:08,714 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 26 remaining) [2023-11-30 08:35:08,714 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 26 remaining) [2023-11-30 08:35:08,714 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 26 remaining) [2023-11-30 08:35:08,715 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-11-30 08:35:08,715 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 08:35:08,719 INFO L222 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-30 08:35:08,719 INFO L172 ceAbstractionStarter]: Computing trace abstraction results [2023-11-30 08:35:08,723 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 08:35:08 BasicIcfg [2023-11-30 08:35:08,723 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-30 08:35:08,724 INFO L158 Benchmark]: Toolchain (without parser) took 6056.98ms. Allocated memory was 352.3MB in the beginning and 641.7MB in the end (delta: 289.4MB). Free memory was 305.8MB in the beginning and 291.3MB in the end (delta: 14.5MB). Peak memory consumption was 307.0MB. Max. memory is 16.0GB. [2023-11-30 08:35:08,724 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 352.3MB. Free memory is still 308.1MB. There was no memory consumed. Max. memory is 16.0GB. [2023-11-30 08:35:08,724 INFO L158 Benchmark]: CACSL2BoogieTranslator took 155.17ms. Allocated memory is still 352.3MB. Free memory was 305.4MB in the beginning and 294.1MB in the end (delta: 11.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. [2023-11-30 08:35:08,724 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.94ms. Allocated memory is still 352.3MB. Free memory was 294.1MB in the beginning and 292.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-11-30 08:35:08,724 INFO L158 Benchmark]: Boogie Preprocessor took 18.15ms. Allocated memory is still 352.3MB. Free memory was 292.0MB in the beginning and 290.7MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-11-30 08:35:08,724 INFO L158 Benchmark]: RCFGBuilder took 519.48ms. Allocated memory is still 352.3MB. Free memory was 290.3MB in the beginning and 269.8MB in the end (delta: 20.6MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. [2023-11-30 08:35:08,725 INFO L158 Benchmark]: TraceAbstraction took 5313.31ms. Allocated memory was 352.3MB in the beginning and 641.7MB in the end (delta: 289.4MB). Free memory was 269.0MB in the beginning and 291.3MB in the end (delta: -22.4MB). Peak memory consumption was 269.3MB. Max. memory is 16.0GB. [2023-11-30 08:35:08,726 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 352.3MB. Free memory is still 308.1MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 155.17ms. Allocated memory is still 352.3MB. Free memory was 305.4MB in the beginning and 294.1MB in the end (delta: 11.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 45.94ms. Allocated memory is still 352.3MB. Free memory was 294.1MB in the beginning and 292.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 18.15ms. Allocated memory is still 352.3MB. Free memory was 292.0MB in the beginning and 290.7MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 519.48ms. Allocated memory is still 352.3MB. Free memory was 290.3MB in the beginning and 269.8MB in the end (delta: 20.6MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. * TraceAbstraction took 5313.31ms. Allocated memory was 352.3MB in the beginning and 641.7MB in the end (delta: 289.4MB). Free memory was 269.0MB in the beginning and 291.3MB in the end (delta: -22.4MB). Peak memory consumption was 269.3MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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: 81]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 81]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 82]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 82]: 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: 81]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 81]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 82]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 82]: 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, 356 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: 5.1s, OverallIterations: 18, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 839 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 839 mSDsluCounter, 671 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 351 mSDsCounter, 52 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1413 IncrementalHoareTripleChecker+Invalid, 1465 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 52 mSolverCounterUnsat, 320 mSDtfsCounter, 1413 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 132 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 112 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5047occurred in iteration=18, InterpolantAutomatonStates: 112, 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, 0.1s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 1254 NumberOfCodeBlocks, 1254 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 1236 ConstructedInterpolants, 0 QuantifiedInterpolants, 2810 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 08:35:08,743 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...