/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-match-symm.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.empire-owicki-175f719-m [2023-11-30 08:36:32,322 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-30 08:36:32,380 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 08:36:32,394 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-30 08:36:32,394 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-30 08:36:32,395 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-30 08:36:32,400 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-30 08:36:32,400 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-30 08:36:32,401 INFO L153 SettingsManager]: * Use SBE=true [2023-11-30 08:36:32,401 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-30 08:36:32,401 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-30 08:36:32,401 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-30 08:36:32,401 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-30 08:36:32,402 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-30 08:36:32,402 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-30 08:36:32,402 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-30 08:36:32,402 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-30 08:36:32,402 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-30 08:36:32,403 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-30 08:36:32,403 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-30 08:36:32,403 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-30 08:36:32,411 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-30 08:36:32,411 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-30 08:36:32,411 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-11-30 08:36:32,412 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-30 08:36:32,412 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-30 08:36:32,412 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-30 08:36:32,412 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-30 08:36:32,413 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-30 08:36:32,413 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-30 08:36:32,413 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-30 08:36:32,413 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-30 08:36:32,413 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-30 08:36:32,413 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2023-11-30 08:36:32,647 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-30 08:36:32,665 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-30 08:36:32,666 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-30 08:36:32,667 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-30 08:36:32,669 INFO L274 PluginConnector]: CDTParser initialized [2023-11-30 08:36:32,670 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-match-symm.wvr.c [2023-11-30 08:36:33,663 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-30 08:36:33,786 INFO L384 CDTParser]: Found 1 translation units. [2023-11-30 08:36:33,786 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-match-symm.wvr.c [2023-11-30 08:36:33,791 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/10b87996e/f4baca884bdb426d8fd2acb9a1e68308/FLAG940efe1b3 [2023-11-30 08:36:33,799 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/10b87996e/f4baca884bdb426d8fd2acb9a1e68308 [2023-11-30 08:36:33,801 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-30 08:36:33,802 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-11-30 08:36:33,802 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-30 08:36:33,802 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-30 08:36:33,805 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-30 08:36:33,806 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 08:36:33" (1/1) ... [2023-11-30 08:36:33,806 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5de415c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 08:36:33, skipping insertion in model container [2023-11-30 08:36:33,806 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 08:36:33" (1/1) ... [2023-11-30 08:36:33,819 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-30 08:36:33,990 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-30 08:36:34,007 INFO L202 MainTranslator]: Completed pre-run [2023-11-30 08:36:34,062 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-30 08:36:34,089 INFO L206 MainTranslator]: Completed translation [2023-11-30 08:36:34,091 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 08:36:34 WrapperNode [2023-11-30 08:36:34,091 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-30 08:36:34,092 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-30 08:36:34,092 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-30 08:36:34,092 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-30 08:36:34,096 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 08:36:34" (1/1) ... [2023-11-30 08:36:34,110 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 08:36:34" (1/1) ... [2023-11-30 08:36:34,169 INFO L138 Inliner]: procedures = 22, calls = 28, calls flagged for inlining = 12, calls inlined = 18, statements flattened = 213 [2023-11-30 08:36:34,169 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-30 08:36:34,170 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-30 08:36:34,170 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-30 08:36:34,170 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-30 08:36:34,176 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 08:36:34" (1/1) ... [2023-11-30 08:36:34,176 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 08:36:34" (1/1) ... [2023-11-30 08:36:34,178 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 08:36:34" (1/1) ... [2023-11-30 08:36:34,179 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 08:36:34" (1/1) ... [2023-11-30 08:36:34,183 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 08:36:34" (1/1) ... [2023-11-30 08:36:34,184 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 08:36:34" (1/1) ... [2023-11-30 08:36:34,185 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 08:36:34" (1/1) ... [2023-11-30 08:36:34,186 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 08:36:34" (1/1) ... [2023-11-30 08:36:34,188 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-30 08:36:34,189 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-30 08:36:34,189 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-30 08:36:34,189 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-30 08:36:34,190 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 08:36:34" (1/1) ... [2023-11-30 08:36:34,193 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-30 08:36:34,202 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 08:36:34,220 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 08:36:34,254 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 08:36:34,257 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-30 08:36:34,257 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-30 08:36:34,257 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-30 08:36:34,258 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-30 08:36:34,258 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-30 08:36:34,258 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-30 08:36:34,258 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-30 08:36:34,258 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-30 08:36:34,258 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-30 08:36:34,258 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-30 08:36:34,258 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-30 08:36:34,259 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-30 08:36:34,260 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 08:36:34,340 INFO L241 CfgBuilder]: Building ICFG [2023-11-30 08:36:34,341 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-30 08:36:34,606 INFO L282 CfgBuilder]: Performing block encoding [2023-11-30 08:36:34,616 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-30 08:36:34,616 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-30 08:36:34,617 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 08:36:34 BoogieIcfgContainer [2023-11-30 08:36:34,618 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-30 08:36:34,619 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-30 08:36:34,619 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-30 08:36:34,621 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-30 08:36:34,621 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 08:36:33" (1/3) ... [2023-11-30 08:36:34,622 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24b8d574 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 08:36:34, skipping insertion in model container [2023-11-30 08:36:34,622 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 08:36:34" (2/3) ... [2023-11-30 08:36:34,622 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24b8d574 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 08:36:34, skipping insertion in model container [2023-11-30 08:36:34,622 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 08:36:34" (3/3) ... [2023-11-30 08:36:34,623 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-match-symm.wvr.c [2023-11-30 08:36:34,633 INFO L197 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-30 08:36:34,634 INFO L156 ceAbstractionStarter]: Applying trace abstraction to program that has 24 error locations. [2023-11-30 08:36:34,634 INFO L508 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-30 08:36:34,717 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-30 08:36:34,746 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 294 places, 306 transitions, 626 flow [2023-11-30 08:36:34,849 INFO L124 PetriNetUnfolderBase]: 19/304 cut-off events. [2023-11-30 08:36:34,849 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-30 08:36:34,863 INFO L83 FinitePrefix]: Finished finitePrefix Result has 313 conditions, 304 events. 19/304 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 411 event pairs, 0 based on Foata normal form. 0/261 useless extension candidates. Maximal degree in co-relation 219. Up to 2 conditions per place. [2023-11-30 08:36:34,863 INFO L82 GeneralOperation]: Start removeDead. Operand has 294 places, 306 transitions, 626 flow [2023-11-30 08:36:34,891 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 257 places, 266 transitions, 541 flow [2023-11-30 08:36:34,908 INFO L361 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-30 08:36:34,920 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;@3816b9b1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-30 08:36:34,920 INFO L363 AbstractCegarLoop]: Starting to check reachability of 50 error locations. [2023-11-30 08:36:34,943 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-30 08:36:34,944 INFO L124 PetriNetUnfolderBase]: 0/66 cut-off events. [2023-11-30 08:36:34,944 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-30 08:36:34,944 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:36:34,944 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 08:36:34,945 INFO L425 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-30 08:36:34,955 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:36:34,955 INFO L85 PathProgramCache]: Analyzing trace with hash 930451314, now seen corresponding path program 1 times [2023-11-30 08:36:34,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:36:34,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678523776] [2023-11-30 08:36:34,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:36:34,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:36:35,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:36:35,190 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 08:36:35,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:36:35,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678523776] [2023-11-30 08:36:35,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [678523776] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:36:35,191 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:36:35,192 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-30 08:36:35,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915205846] [2023-11-30 08:36:35,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:36:35,198 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-30 08:36:35,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:36:35,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-30 08:36:35,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-30 08:36:35,226 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 242 out of 306 [2023-11-30 08:36:35,231 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 257 places, 266 transitions, 541 flow. Second operand has 4 states, 4 states have (on average 243.5) internal successors, (974), 4 states have internal predecessors, (974), 0 states have call successors, (0), 0 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 08:36:35,231 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:36:35,231 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 242 of 306 [2023-11-30 08:36:35,232 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:36:35,412 INFO L124 PetriNetUnfolderBase]: 78/525 cut-off events. [2023-11-30 08:36:35,412 INFO L125 PetriNetUnfolderBase]: For 67/67 co-relation queries the response was YES. [2023-11-30 08:36:35,416 INFO L83 FinitePrefix]: Finished finitePrefix Result has 859 conditions, 525 events. 78/525 cut-off events. For 67/67 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 2465 event pairs, 26 based on Foata normal form. 156/604 useless extension candidates. Maximal degree in co-relation 801. Up to 94 conditions per place. [2023-11-30 08:36:35,419 INFO L140 encePairwiseOnDemand]: 282/306 looper letters, 63 selfloop transitions, 10 changer transitions 0/280 dead transitions. [2023-11-30 08:36:35,419 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 258 places, 280 transitions, 721 flow [2023-11-30 08:36:35,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-30 08:36:35,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-30 08:36:35,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1067 transitions. [2023-11-30 08:36:35,432 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8717320261437909 [2023-11-30 08:36:35,432 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1067 transitions. [2023-11-30 08:36:35,433 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1067 transitions. [2023-11-30 08:36:35,435 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:36:35,436 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1067 transitions. [2023-11-30 08:36:35,441 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 266.75) internal successors, (1067), 4 states have internal predecessors, (1067), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:36:35,445 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 306.0) internal successors, (1530), 5 states have internal predecessors, (1530), 0 states have call successors, (0), 0 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 08:36:35,446 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 306.0) internal successors, (1530), 5 states have internal predecessors, (1530), 0 states have call successors, (0), 0 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 08:36:35,449 INFO L307 CegarLoopForPetriNet]: 257 programPoint places, 1 predicate places. [2023-11-30 08:36:35,449 INFO L500 AbstractCegarLoop]: Abstraction has has 258 places, 280 transitions, 721 flow [2023-11-30 08:36:35,450 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 243.5) internal successors, (974), 4 states have internal predecessors, (974), 0 states have call successors, (0), 0 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 08:36:35,450 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:36:35,450 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 08:36:35,450 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-30 08:36:35,450 INFO L425 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-30 08:36:35,451 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:36:35,451 INFO L85 PathProgramCache]: Analyzing trace with hash -1220779603, now seen corresponding path program 1 times [2023-11-30 08:36:35,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:36:35,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13317234] [2023-11-30 08:36:35,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:36:35,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:36:35,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:36:35,593 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 08:36:35,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:36:35,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13317234] [2023-11-30 08:36:35,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [13317234] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:36:35,594 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:36:35,594 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-30 08:36:35,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718378679] [2023-11-30 08:36:35,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:36:35,595 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-30 08:36:35,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:36:35,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-30 08:36:35,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-30 08:36:35,597 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 238 out of 306 [2023-11-30 08:36:35,599 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 258 places, 280 transitions, 721 flow. Second operand has 6 states, 6 states have (on average 240.16666666666666) internal successors, (1441), 6 states have internal predecessors, (1441), 0 states have call successors, (0), 0 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 08:36:35,599 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:36:35,599 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 238 of 306 [2023-11-30 08:36:35,599 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:36:35,817 INFO L124 PetriNetUnfolderBase]: 161/991 cut-off events. [2023-11-30 08:36:35,817 INFO L125 PetriNetUnfolderBase]: For 177/180 co-relation queries the response was YES. [2023-11-30 08:36:35,821 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1775 conditions, 991 events. 161/991 cut-off events. For 177/180 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 7174 event pairs, 50 based on Foata normal form. 0/816 useless extension candidates. Maximal degree in co-relation 1700. Up to 155 conditions per place. [2023-11-30 08:36:35,825 INFO L140 encePairwiseOnDemand]: 295/306 looper letters, 74 selfloop transitions, 11 changer transitions 0/293 dead transitions. [2023-11-30 08:36:35,825 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 263 places, 293 transitions, 952 flow [2023-11-30 08:36:35,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-30 08:36:35,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-30 08:36:35,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1730 transitions. [2023-11-30 08:36:35,828 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.80765639589169 [2023-11-30 08:36:35,829 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1730 transitions. [2023-11-30 08:36:35,829 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1730 transitions. [2023-11-30 08:36:35,830 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:36:35,830 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1730 transitions. [2023-11-30 08:36:35,833 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 247.14285714285714) internal successors, (1730), 7 states have internal predecessors, (1730), 0 states have call successors, (0), 0 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 08:36:35,835 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 306.0) internal successors, (2448), 8 states have internal predecessors, (2448), 0 states have call successors, (0), 0 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 08:36:35,836 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 306.0) internal successors, (2448), 8 states have internal predecessors, (2448), 0 states have call successors, (0), 0 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 08:36:35,837 INFO L307 CegarLoopForPetriNet]: 257 programPoint places, 6 predicate places. [2023-11-30 08:36:35,837 INFO L500 AbstractCegarLoop]: Abstraction has has 263 places, 293 transitions, 952 flow [2023-11-30 08:36:35,838 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 240.16666666666666) internal successors, (1441), 6 states have internal predecessors, (1441), 0 states have call successors, (0), 0 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 08:36:35,838 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:36:35,838 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 08:36:35,838 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-30 08:36:35,838 INFO L425 AbstractCegarLoop]: === Iteration 3 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-30 08:36:35,839 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:36:35,839 INFO L85 PathProgramCache]: Analyzing trace with hash -1735820687, now seen corresponding path program 1 times [2023-11-30 08:36:35,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:36:35,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2115083780] [2023-11-30 08:36:35,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:36:35,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:36:35,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:36:35,951 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 08:36:35,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:36:35,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2115083780] [2023-11-30 08:36:35,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2115083780] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:36:35,951 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:36:35,951 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-30 08:36:35,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257106694] [2023-11-30 08:36:35,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:36:35,952 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-30 08:36:35,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:36:35,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-30 08:36:35,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-30 08:36:35,953 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 242 out of 306 [2023-11-30 08:36:35,954 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 263 places, 293 transitions, 952 flow. Second operand has 4 states, 4 states have (on average 243.75) internal successors, (975), 4 states have internal predecessors, (975), 0 states have call successors, (0), 0 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 08:36:35,954 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:36:35,954 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 242 of 306 [2023-11-30 08:36:35,954 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:36:36,136 INFO L124 PetriNetUnfolderBase]: 232/1288 cut-off events. [2023-11-30 08:36:36,137 INFO L125 PetriNetUnfolderBase]: For 972/975 co-relation queries the response was YES. [2023-11-30 08:36:36,143 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2634 conditions, 1288 events. 232/1288 cut-off events. For 972/975 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 9772 event pairs, 36 based on Foata normal form. 0/1017 useless extension candidates. Maximal degree in co-relation 2027. Up to 217 conditions per place. [2023-11-30 08:36:36,149 INFO L140 encePairwiseOnDemand]: 290/306 looper letters, 70 selfloop transitions, 10 changer transitions 0/315 dead transitions. [2023-11-30 08:36:36,151 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 264 places, 315 transitions, 1170 flow [2023-11-30 08:36:36,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-30 08:36:36,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-30 08:36:36,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1047 transitions. [2023-11-30 08:36:36,154 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8553921568627451 [2023-11-30 08:36:36,154 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1047 transitions. [2023-11-30 08:36:36,154 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1047 transitions. [2023-11-30 08:36:36,154 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:36:36,154 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1047 transitions. [2023-11-30 08:36:36,156 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 261.75) internal successors, (1047), 4 states have internal predecessors, (1047), 0 states have call successors, (0), 0 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 08:36:36,157 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 306.0) internal successors, (1530), 5 states have internal predecessors, (1530), 0 states have call successors, (0), 0 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 08:36:36,158 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 306.0) internal successors, (1530), 5 states have internal predecessors, (1530), 0 states have call successors, (0), 0 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 08:36:36,159 INFO L307 CegarLoopForPetriNet]: 257 programPoint places, 7 predicate places. [2023-11-30 08:36:36,159 INFO L500 AbstractCegarLoop]: Abstraction has has 264 places, 315 transitions, 1170 flow [2023-11-30 08:36:36,160 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 243.75) internal successors, (975), 4 states have internal predecessors, (975), 0 states have call successors, (0), 0 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 08:36:36,160 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:36:36,160 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 08:36:36,160 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-30 08:36:36,161 INFO L425 AbstractCegarLoop]: === Iteration 4 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-30 08:36:36,161 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:36:36,161 INFO L85 PathProgramCache]: Analyzing trace with hash 2024134390, now seen corresponding path program 1 times [2023-11-30 08:36:36,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:36:36,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [471053091] [2023-11-30 08:36:36,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:36:36,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:36:36,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:36:36,241 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 08:36:36,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:36:36,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [471053091] [2023-11-30 08:36:36,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [471053091] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:36:36,242 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:36:36,242 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-30 08:36:36,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960646042] [2023-11-30 08:36:36,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:36:36,242 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-30 08:36:36,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:36:36,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-30 08:36:36,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-30 08:36:36,248 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 238 out of 306 [2023-11-30 08:36:36,249 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 264 places, 315 transitions, 1170 flow. Second operand has 6 states, 6 states have (on average 240.33333333333334) internal successors, (1442), 6 states have internal predecessors, (1442), 0 states have call successors, (0), 0 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 08:36:36,249 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:36:36,249 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 238 of 306 [2023-11-30 08:36:36,249 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:36:36,572 INFO L124 PetriNetUnfolderBase]: 304/1578 cut-off events. [2023-11-30 08:36:36,573 INFO L125 PetriNetUnfolderBase]: For 1852/3874 co-relation queries the response was YES. [2023-11-30 08:36:36,578 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3673 conditions, 1578 events. 304/1578 cut-off events. For 1852/3874 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 12187 event pairs, 56 based on Foata normal form. 6/1215 useless extension candidates. Maximal degree in co-relation 2860. Up to 338 conditions per place. [2023-11-30 08:36:36,584 INFO L140 encePairwiseOnDemand]: 295/306 looper letters, 84 selfloop transitions, 11 changer transitions 0/328 dead transitions. [2023-11-30 08:36:36,584 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 269 places, 328 transitions, 1447 flow [2023-11-30 08:36:36,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-30 08:36:36,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-30 08:36:36,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1730 transitions. [2023-11-30 08:36:36,587 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.80765639589169 [2023-11-30 08:36:36,587 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1730 transitions. [2023-11-30 08:36:36,587 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1730 transitions. [2023-11-30 08:36:36,588 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:36:36,588 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1730 transitions. [2023-11-30 08:36:36,590 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 247.14285714285714) internal successors, (1730), 7 states have internal predecessors, (1730), 0 states have call successors, (0), 0 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 08:36:36,593 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 306.0) internal successors, (2448), 8 states have internal predecessors, (2448), 0 states have call successors, (0), 0 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 08:36:36,594 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 306.0) internal successors, (2448), 8 states have internal predecessors, (2448), 0 states have call successors, (0), 0 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 08:36:36,594 INFO L307 CegarLoopForPetriNet]: 257 programPoint places, 12 predicate places. [2023-11-30 08:36:36,595 INFO L500 AbstractCegarLoop]: Abstraction has has 269 places, 328 transitions, 1447 flow [2023-11-30 08:36:36,595 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 240.33333333333334) internal successors, (1442), 6 states have internal predecessors, (1442), 0 states have call successors, (0), 0 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 08:36:36,595 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:36:36,595 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 08:36:36,595 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-30 08:36:36,596 INFO L425 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-30 08:36:36,596 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:36:36,596 INFO L85 PathProgramCache]: Analyzing trace with hash -1405867660, now seen corresponding path program 1 times [2023-11-30 08:36:36,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:36:36,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057503022] [2023-11-30 08:36:36,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:36:36,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:36:36,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:36:36,680 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 08:36:36,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:36:36,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2057503022] [2023-11-30 08:36:36,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2057503022] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:36:36,681 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:36:36,681 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-30 08:36:36,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18854635] [2023-11-30 08:36:36,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:36:36,681 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-30 08:36:36,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:36:36,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-30 08:36:36,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-30 08:36:36,683 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 238 out of 306 [2023-11-30 08:36:36,684 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 269 places, 328 transitions, 1447 flow. Second operand has 6 states, 6 states have (on average 240.16666666666666) internal successors, (1441), 6 states have internal predecessors, (1441), 0 states have call successors, (0), 0 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 08:36:36,684 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:36:36,684 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 238 of 306 [2023-11-30 08:36:36,684 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:36:36,931 INFO L124 PetriNetUnfolderBase]: 296/1408 cut-off events. [2023-11-30 08:36:36,931 INFO L125 PetriNetUnfolderBase]: For 4710/8249 co-relation queries the response was YES. [2023-11-30 08:36:36,939 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3813 conditions, 1408 events. 296/1408 cut-off events. For 4710/8249 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 10951 event pairs, 55 based on Foata normal form. 11/1053 useless extension candidates. Maximal degree in co-relation 2918. Up to 310 conditions per place. [2023-11-30 08:36:36,946 INFO L140 encePairwiseOnDemand]: 296/306 looper letters, 85 selfloop transitions, 11 changer transitions 0/329 dead transitions. [2023-11-30 08:36:36,947 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 274 places, 329 transitions, 1652 flow [2023-11-30 08:36:36,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-30 08:36:36,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-30 08:36:36,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1723 transitions. [2023-11-30 08:36:36,949 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8043884220354809 [2023-11-30 08:36:36,950 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1723 transitions. [2023-11-30 08:36:36,950 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1723 transitions. [2023-11-30 08:36:36,950 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:36:36,950 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1723 transitions. [2023-11-30 08:36:36,952 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 246.14285714285714) internal successors, (1723), 7 states have internal predecessors, (1723), 0 states have call successors, (0), 0 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 08:36:36,955 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 306.0) internal successors, (2448), 8 states have internal predecessors, (2448), 0 states have call successors, (0), 0 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 08:36:36,955 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 306.0) internal successors, (2448), 8 states have internal predecessors, (2448), 0 states have call successors, (0), 0 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 08:36:36,956 INFO L307 CegarLoopForPetriNet]: 257 programPoint places, 17 predicate places. [2023-11-30 08:36:36,956 INFO L500 AbstractCegarLoop]: Abstraction has has 274 places, 329 transitions, 1652 flow [2023-11-30 08:36:36,956 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 240.16666666666666) internal successors, (1441), 6 states have internal predecessors, (1441), 0 states have call successors, (0), 0 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 08:36:36,956 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:36:36,957 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 08:36:36,957 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-30 08:36:36,957 INFO L425 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-30 08:36:36,957 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:36:36,957 INFO L85 PathProgramCache]: Analyzing trace with hash -632223748, now seen corresponding path program 1 times [2023-11-30 08:36:36,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:36:36,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [195632842] [2023-11-30 08:36:36,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:36:36,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:36:36,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:36:36,990 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 08:36:36,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:36:36,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [195632842] [2023-11-30 08:36:36,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [195632842] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:36:36,991 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:36:36,991 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-30 08:36:36,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435459707] [2023-11-30 08:36:36,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:36:36,992 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-30 08:36:36,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:36:36,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-30 08:36:36,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-30 08:36:36,993 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 242 out of 306 [2023-11-30 08:36:36,993 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 274 places, 329 transitions, 1652 flow. Second operand has 4 states, 4 states have (on average 244.5) internal successors, (978), 4 states have internal predecessors, (978), 0 states have call successors, (0), 0 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 08:36:36,993 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:36:36,994 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 242 of 306 [2023-11-30 08:36:36,994 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:36:37,221 INFO L124 PetriNetUnfolderBase]: 293/1497 cut-off events. [2023-11-30 08:36:37,221 INFO L125 PetriNetUnfolderBase]: For 7223/10523 co-relation queries the response was YES. [2023-11-30 08:36:37,231 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4314 conditions, 1497 events. 293/1497 cut-off events. For 7223/10523 co-relation queries the response was YES. Maximal size of possible extension queue 103. Compared 11940 event pairs, 67 based on Foata normal form. 2/1130 useless extension candidates. Maximal degree in co-relation 3342. Up to 335 conditions per place. [2023-11-30 08:36:37,240 INFO L140 encePairwiseOnDemand]: 296/306 looper letters, 86 selfloop transitions, 9 changer transitions 0/334 dead transitions. [2023-11-30 08:36:37,240 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 277 places, 334 transitions, 1931 flow [2023-11-30 08:36:37,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-30 08:36:37,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-30 08:36:37,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1039 transitions. [2023-11-30 08:36:37,242 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8488562091503268 [2023-11-30 08:36:37,243 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1039 transitions. [2023-11-30 08:36:37,243 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1039 transitions. [2023-11-30 08:36:37,243 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:36:37,243 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1039 transitions. [2023-11-30 08:36:37,245 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 259.75) internal successors, (1039), 4 states have internal predecessors, (1039), 0 states have call successors, (0), 0 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 08:36:37,246 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 306.0) internal successors, (1530), 5 states have internal predecessors, (1530), 0 states have call successors, (0), 0 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 08:36:37,246 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 306.0) internal successors, (1530), 5 states have internal predecessors, (1530), 0 states have call successors, (0), 0 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 08:36:37,248 INFO L307 CegarLoopForPetriNet]: 257 programPoint places, 20 predicate places. [2023-11-30 08:36:37,249 INFO L500 AbstractCegarLoop]: Abstraction has has 277 places, 334 transitions, 1931 flow [2023-11-30 08:36:37,249 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 244.5) internal successors, (978), 4 states have internal predecessors, (978), 0 states have call successors, (0), 0 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 08:36:37,249 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:36:37,249 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 08:36:37,249 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-30 08:36:37,249 INFO L425 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-30 08:36:37,250 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:36:37,250 INFO L85 PathProgramCache]: Analyzing trace with hash 548847857, now seen corresponding path program 1 times [2023-11-30 08:36:37,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:36:37,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838215745] [2023-11-30 08:36:37,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:36:37,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:36:37,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:36:37,343 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 08:36:37,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:36:37,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [838215745] [2023-11-30 08:36:37,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [838215745] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:36:37,343 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:36:37,343 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-30 08:36:37,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878937438] [2023-11-30 08:36:37,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:36:37,344 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-30 08:36:37,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:36:37,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-30 08:36:37,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-30 08:36:37,345 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 234 out of 306 [2023-11-30 08:36:37,346 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 277 places, 334 transitions, 1931 flow. Second operand has 5 states, 5 states have (on average 236.8) internal successors, (1184), 5 states have internal predecessors, (1184), 0 states have call successors, (0), 0 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 08:36:37,346 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:36:37,346 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 234 of 306 [2023-11-30 08:36:37,346 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:36:37,704 INFO L124 PetriNetUnfolderBase]: 310/1681 cut-off events. [2023-11-30 08:36:37,704 INFO L125 PetriNetUnfolderBase]: For 10181/13325 co-relation queries the response was YES. [2023-11-30 08:36:37,714 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5101 conditions, 1681 events. 310/1681 cut-off events. For 10181/13325 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 13258 event pairs, 92 based on Foata normal form. 2/1314 useless extension candidates. Maximal degree in co-relation 4054. Up to 374 conditions per place. [2023-11-30 08:36:37,723 INFO L140 encePairwiseOnDemand]: 290/306 looper letters, 96 selfloop transitions, 16 changer transitions 0/343 dead transitions. [2023-11-30 08:36:37,723 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 280 places, 343 transitions, 2186 flow [2023-11-30 08:36:37,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-30 08:36:37,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-30 08:36:37,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1491 transitions. [2023-11-30 08:36:37,726 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8120915032679739 [2023-11-30 08:36:37,726 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1491 transitions. [2023-11-30 08:36:37,726 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1491 transitions. [2023-11-30 08:36:37,727 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:36:37,727 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1491 transitions. [2023-11-30 08:36:37,729 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 248.5) internal successors, (1491), 6 states have internal predecessors, (1491), 0 states have call successors, (0), 0 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 08:36:37,731 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 306.0) internal successors, (2142), 7 states have internal predecessors, (2142), 0 states have call successors, (0), 0 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 08:36:37,731 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 306.0) internal successors, (2142), 7 states have internal predecessors, (2142), 0 states have call successors, (0), 0 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 08:36:37,732 INFO L307 CegarLoopForPetriNet]: 257 programPoint places, 23 predicate places. [2023-11-30 08:36:37,732 INFO L500 AbstractCegarLoop]: Abstraction has has 280 places, 343 transitions, 2186 flow [2023-11-30 08:36:37,733 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 236.8) internal successors, (1184), 5 states have internal predecessors, (1184), 0 states have call successors, (0), 0 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 08:36:37,733 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:36:37,733 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 08:36:37,733 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-30 08:36:37,733 INFO L425 AbstractCegarLoop]: === Iteration 8 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-30 08:36:37,733 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:36:37,733 INFO L85 PathProgramCache]: Analyzing trace with hash -348063299, now seen corresponding path program 1 times [2023-11-30 08:36:37,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:36:37,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047298964] [2023-11-30 08:36:37,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:36:37,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:36:37,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:36:37,780 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 08:36:37,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:36:37,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047298964] [2023-11-30 08:36:37,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1047298964] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:36:37,780 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:36:37,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-30 08:36:37,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217455142] [2023-11-30 08:36:37,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:36:37,781 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-30 08:36:37,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:36:37,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-30 08:36:37,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-30 08:36:37,783 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 238 out of 306 [2023-11-30 08:36:37,784 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 280 places, 343 transitions, 2186 flow. Second operand has 6 states, 6 states have (on average 240.33333333333334) internal successors, (1442), 6 states have internal predecessors, (1442), 0 states have call successors, (0), 0 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 08:36:37,784 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:36:37,784 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 238 of 306 [2023-11-30 08:36:37,784 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:36:38,073 INFO L124 PetriNetUnfolderBase]: 302/1507 cut-off events. [2023-11-30 08:36:38,073 INFO L125 PetriNetUnfolderBase]: For 9440/18236 co-relation queries the response was YES. [2023-11-30 08:36:38,082 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5313 conditions, 1507 events. 302/1507 cut-off events. For 9440/18236 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 12106 event pairs, 64 based on Foata normal form. 26/1177 useless extension candidates. Maximal degree in co-relation 4138. Up to 383 conditions per place. [2023-11-30 08:36:38,089 INFO L140 encePairwiseOnDemand]: 296/306 looper letters, 97 selfloop transitions, 11 changer transitions 0/344 dead transitions. [2023-11-30 08:36:38,089 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 285 places, 344 transitions, 2423 flow [2023-11-30 08:36:38,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-30 08:36:38,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-30 08:36:38,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1723 transitions. [2023-11-30 08:36:38,093 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8043884220354809 [2023-11-30 08:36:38,093 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1723 transitions. [2023-11-30 08:36:38,093 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1723 transitions. [2023-11-30 08:36:38,093 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:36:38,093 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1723 transitions. [2023-11-30 08:36:38,096 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 246.14285714285714) internal successors, (1723), 7 states have internal predecessors, (1723), 0 states have call successors, (0), 0 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 08:36:38,098 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 306.0) internal successors, (2448), 8 states have internal predecessors, (2448), 0 states have call successors, (0), 0 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 08:36:38,099 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 306.0) internal successors, (2448), 8 states have internal predecessors, (2448), 0 states have call successors, (0), 0 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 08:36:38,099 INFO L307 CegarLoopForPetriNet]: 257 programPoint places, 28 predicate places. [2023-11-30 08:36:38,099 INFO L500 AbstractCegarLoop]: Abstraction has has 285 places, 344 transitions, 2423 flow [2023-11-30 08:36:38,100 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 240.33333333333334) internal successors, (1442), 6 states have internal predecessors, (1442), 0 states have call successors, (0), 0 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 08:36:38,100 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:36:38,100 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 08:36:38,100 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-30 08:36:38,100 INFO L425 AbstractCegarLoop]: === Iteration 9 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-30 08:36:38,100 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:36:38,101 INFO L85 PathProgramCache]: Analyzing trace with hash 2094940475, now seen corresponding path program 1 times [2023-11-30 08:36:38,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:36:38,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324521331] [2023-11-30 08:36:38,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:36:38,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:36:38,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:36:38,134 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 08:36:38,134 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:36:38,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1324521331] [2023-11-30 08:36:38,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1324521331] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:36:38,134 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:36:38,134 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-30 08:36:38,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743201642] [2023-11-30 08:36:38,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:36:38,135 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-30 08:36:38,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:36:38,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-30 08:36:38,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-30 08:36:38,136 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 242 out of 306 [2023-11-30 08:36:38,137 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 285 places, 344 transitions, 2423 flow. Second operand has 4 states, 4 states have (on average 244.75) internal successors, (979), 4 states have internal predecessors, (979), 0 states have call successors, (0), 0 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 08:36:38,137 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:36:38,137 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 242 of 306 [2023-11-30 08:36:38,137 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:36:38,465 INFO L124 PetriNetUnfolderBase]: 298/1659 cut-off events. [2023-11-30 08:36:38,465 INFO L125 PetriNetUnfolderBase]: For 11378/26620 co-relation queries the response was YES. [2023-11-30 08:36:38,475 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6149 conditions, 1659 events. 298/1659 cut-off events. For 11378/26620 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 13192 event pairs, 69 based on Foata normal form. 19/1333 useless extension candidates. Maximal degree in co-relation 4842. Up to 416 conditions per place. [2023-11-30 08:36:38,482 INFO L140 encePairwiseOnDemand]: 296/306 looper letters, 97 selfloop transitions, 9 changer transitions 0/349 dead transitions. [2023-11-30 08:36:38,482 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 288 places, 349 transitions, 2766 flow [2023-11-30 08:36:38,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-30 08:36:38,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-30 08:36:38,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1039 transitions. [2023-11-30 08:36:38,484 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8488562091503268 [2023-11-30 08:36:38,484 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1039 transitions. [2023-11-30 08:36:38,484 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1039 transitions. [2023-11-30 08:36:38,484 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:36:38,484 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1039 transitions. [2023-11-30 08:36:38,486 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 259.75) internal successors, (1039), 4 states have internal predecessors, (1039), 0 states have call successors, (0), 0 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 08:36:38,487 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 306.0) internal successors, (1530), 5 states have internal predecessors, (1530), 0 states have call successors, (0), 0 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 08:36:38,488 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 306.0) internal successors, (1530), 5 states have internal predecessors, (1530), 0 states have call successors, (0), 0 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 08:36:38,488 INFO L307 CegarLoopForPetriNet]: 257 programPoint places, 31 predicate places. [2023-11-30 08:36:38,488 INFO L500 AbstractCegarLoop]: Abstraction has has 288 places, 349 transitions, 2766 flow [2023-11-30 08:36:38,489 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 244.75) internal successors, (979), 4 states have internal predecessors, (979), 0 states have call successors, (0), 0 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 08:36:38,489 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:36:38,489 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 08:36:38,489 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-30 08:36:38,489 INFO L425 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-30 08:36:38,489 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:36:38,489 INFO L85 PathProgramCache]: Analyzing trace with hash -638483999, now seen corresponding path program 1 times [2023-11-30 08:36:38,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:36:38,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128232460] [2023-11-30 08:36:38,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:36:38,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:36:38,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:36:38,623 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 08:36:38,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:36:38,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128232460] [2023-11-30 08:36:38,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1128232460] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:36:38,624 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:36:38,624 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-30 08:36:38,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129071778] [2023-11-30 08:36:38,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:36:38,624 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-30 08:36:38,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:36:38,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-30 08:36:38,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-11-30 08:36:38,626 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 228 out of 306 [2023-11-30 08:36:38,628 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 288 places, 349 transitions, 2766 flow. Second operand has 8 states, 8 states have (on average 230.125) internal successors, (1841), 8 states have internal predecessors, (1841), 0 states have call successors, (0), 0 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 08:36:38,628 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:36:38,628 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 228 of 306 [2023-11-30 08:36:38,628 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:36:39,012 INFO L124 PetriNetUnfolderBase]: 314/1762 cut-off events. [2023-11-30 08:36:39,012 INFO L125 PetriNetUnfolderBase]: For 20999/34840 co-relation queries the response was YES. [2023-11-30 08:36:39,023 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6951 conditions, 1762 events. 314/1762 cut-off events. For 20999/34840 co-relation queries the response was YES. Maximal size of possible extension queue 81. Compared 14285 event pairs, 47 based on Foata normal form. 19/1416 useless extension candidates. Maximal degree in co-relation 5563. Up to 462 conditions per place. [2023-11-30 08:36:39,031 INFO L140 encePairwiseOnDemand]: 290/306 looper letters, 115 selfloop transitions, 20 changer transitions 0/361 dead transitions. [2023-11-30 08:36:39,031 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 297 places, 361 transitions, 3245 flow [2023-11-30 08:36:39,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-30 08:36:39,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-30 08:36:39,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 2357 transitions. [2023-11-30 08:36:39,036 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7702614379084968 [2023-11-30 08:36:39,036 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 2357 transitions. [2023-11-30 08:36:39,036 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 2357 transitions. [2023-11-30 08:36:39,037 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:36:39,037 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 2357 transitions. [2023-11-30 08:36:39,039 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 235.7) internal successors, (2357), 10 states have internal predecessors, (2357), 0 states have call successors, (0), 0 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 08:36:39,042 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 306.0) internal successors, (3366), 11 states have internal predecessors, (3366), 0 states have call successors, (0), 0 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 08:36:39,042 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 306.0) internal successors, (3366), 11 states have internal predecessors, (3366), 0 states have call successors, (0), 0 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 08:36:39,043 INFO L307 CegarLoopForPetriNet]: 257 programPoint places, 40 predicate places. [2023-11-30 08:36:39,043 INFO L500 AbstractCegarLoop]: Abstraction has has 297 places, 361 transitions, 3245 flow [2023-11-30 08:36:39,044 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 230.125) internal successors, (1841), 8 states have internal predecessors, (1841), 0 states have call successors, (0), 0 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 08:36:39,044 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:36:39,044 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 08:36:39,044 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-30 08:36:39,044 INFO L425 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-30 08:36:39,044 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:36:39,045 INFO L85 PathProgramCache]: Analyzing trace with hash 1681833275, now seen corresponding path program 1 times [2023-11-30 08:36:39,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:36:39,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997576881] [2023-11-30 08:36:39,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:36:39,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:36:39,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:36:39,117 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 08:36:39,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:36:39,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997576881] [2023-11-30 08:36:39,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1997576881] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:36:39,117 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:36:39,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-30 08:36:39,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028924723] [2023-11-30 08:36:39,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:36:39,118 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-30 08:36:39,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:36:39,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-30 08:36:39,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-11-30 08:36:39,120 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 228 out of 306 [2023-11-30 08:36:39,121 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 297 places, 361 transitions, 3245 flow. Second operand has 8 states, 8 states have (on average 230.25) internal successors, (1842), 8 states have internal predecessors, (1842), 0 states have call successors, (0), 0 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 08:36:39,121 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:36:39,121 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 228 of 306 [2023-11-30 08:36:39,121 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:36:39,456 INFO L124 PetriNetUnfolderBase]: 333/1788 cut-off events. [2023-11-30 08:36:39,456 INFO L125 PetriNetUnfolderBase]: For 33047/51721 co-relation queries the response was YES. [2023-11-30 08:36:39,472 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7642 conditions, 1788 events. 333/1788 cut-off events. For 33047/51721 co-relation queries the response was YES. Maximal size of possible extension queue 90. Compared 14808 event pairs, 60 based on Foata normal form. 33/1451 useless extension candidates. Maximal degree in co-relation 6170. Up to 481 conditions per place. [2023-11-30 08:36:39,480 INFO L140 encePairwiseOnDemand]: 289/306 looper letters, 139 selfloop transitions, 25 changer transitions 0/384 dead transitions. [2023-11-30 08:36:39,481 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 306 places, 384 transitions, 4007 flow [2023-11-30 08:36:39,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-30 08:36:39,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-30 08:36:39,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 2357 transitions. [2023-11-30 08:36:39,484 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7702614379084968 [2023-11-30 08:36:39,484 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 2357 transitions. [2023-11-30 08:36:39,485 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 2357 transitions. [2023-11-30 08:36:39,485 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:36:39,485 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 2357 transitions. [2023-11-30 08:36:39,488 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 235.7) internal successors, (2357), 10 states have internal predecessors, (2357), 0 states have call successors, (0), 0 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 08:36:39,491 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 306.0) internal successors, (3366), 11 states have internal predecessors, (3366), 0 states have call successors, (0), 0 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 08:36:39,491 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 306.0) internal successors, (3366), 11 states have internal predecessors, (3366), 0 states have call successors, (0), 0 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 08:36:39,492 INFO L307 CegarLoopForPetriNet]: 257 programPoint places, 49 predicate places. [2023-11-30 08:36:39,492 INFO L500 AbstractCegarLoop]: Abstraction has has 306 places, 384 transitions, 4007 flow [2023-11-30 08:36:39,492 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 230.25) internal successors, (1842), 8 states have internal predecessors, (1842), 0 states have call successors, (0), 0 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 08:36:39,492 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:36:39,493 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 08:36:39,493 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-30 08:36:39,493 INFO L425 AbstractCegarLoop]: === Iteration 12 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-30 08:36:39,493 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:36:39,493 INFO L85 PathProgramCache]: Analyzing trace with hash 1896947386, now seen corresponding path program 1 times [2023-11-30 08:36:39,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:36:39,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427495363] [2023-11-30 08:36:39,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:36:39,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:36:39,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:36:39,555 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 08:36:39,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:36:39,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427495363] [2023-11-30 08:36:39,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [427495363] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:36:39,556 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:36:39,556 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-30 08:36:39,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673067142] [2023-11-30 08:36:39,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:36:39,556 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-30 08:36:39,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:36:39,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-30 08:36:39,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-30 08:36:39,557 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 234 out of 306 [2023-11-30 08:36:39,558 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 306 places, 384 transitions, 4007 flow. Second operand has 5 states, 5 states have (on average 237.0) internal successors, (1185), 5 states have internal predecessors, (1185), 0 states have call successors, (0), 0 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 08:36:39,558 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:36:39,558 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 234 of 306 [2023-11-30 08:36:39,558 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:36:40,001 INFO L124 PetriNetUnfolderBase]: 336/1456 cut-off events. [2023-11-30 08:36:40,002 INFO L125 PetriNetUnfolderBase]: For 22854/51917 co-relation queries the response was YES. [2023-11-30 08:36:40,013 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7322 conditions, 1456 events. 336/1456 cut-off events. For 22854/51917 co-relation queries the response was YES. Maximal size of possible extension queue 120. Compared 11985 event pairs, 35 based on Foata normal form. 90/1208 useless extension candidates. Maximal degree in co-relation 5513. Up to 387 conditions per place. [2023-11-30 08:36:40,022 INFO L140 encePairwiseOnDemand]: 290/306 looper letters, 126 selfloop transitions, 16 changer transitions 0/393 dead transitions. [2023-11-30 08:36:40,022 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 309 places, 393 transitions, 4352 flow [2023-11-30 08:36:40,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-30 08:36:40,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-30 08:36:40,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1491 transitions. [2023-11-30 08:36:40,025 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8120915032679739 [2023-11-30 08:36:40,025 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1491 transitions. [2023-11-30 08:36:40,025 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1491 transitions. [2023-11-30 08:36:40,025 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:36:40,025 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1491 transitions. [2023-11-30 08:36:40,027 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 248.5) internal successors, (1491), 6 states have internal predecessors, (1491), 0 states have call successors, (0), 0 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 08:36:40,029 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 306.0) internal successors, (2142), 7 states have internal predecessors, (2142), 0 states have call successors, (0), 0 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 08:36:40,029 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 306.0) internal successors, (2142), 7 states have internal predecessors, (2142), 0 states have call successors, (0), 0 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 08:36:40,031 INFO L307 CegarLoopForPetriNet]: 257 programPoint places, 52 predicate places. [2023-11-30 08:36:40,031 INFO L500 AbstractCegarLoop]: Abstraction has has 309 places, 393 transitions, 4352 flow [2023-11-30 08:36:40,031 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 237.0) internal successors, (1185), 5 states have internal predecessors, (1185), 0 states have call successors, (0), 0 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 08:36:40,032 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:36:40,032 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 08:36:40,032 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-30 08:36:40,032 INFO L425 AbstractCegarLoop]: === Iteration 13 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-30 08:36:40,032 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:36:40,032 INFO L85 PathProgramCache]: Analyzing trace with hash 461631254, now seen corresponding path program 1 times [2023-11-30 08:36:40,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:36:40,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149078298] [2023-11-30 08:36:40,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:36:40,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:36:40,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:36:40,106 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 08:36:40,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:36:40,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [149078298] [2023-11-30 08:36:40,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [149078298] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:36:40,106 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:36:40,107 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-30 08:36:40,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379749743] [2023-11-30 08:36:40,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:36:40,107 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-30 08:36:40,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:36:40,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-30 08:36:40,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-11-30 08:36:40,108 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 214 out of 306 [2023-11-30 08:36:40,109 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 309 places, 393 transitions, 4352 flow. Second operand has 6 states, 6 states have (on average 218.0) internal successors, (1308), 6 states have internal predecessors, (1308), 0 states have call successors, (0), 0 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 08:36:40,109 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:36:40,109 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 214 of 306 [2023-11-30 08:36:40,109 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:36:40,486 INFO L124 PetriNetUnfolderBase]: 392/1508 cut-off events. [2023-11-30 08:36:40,486 INFO L125 PetriNetUnfolderBase]: For 34721/52472 co-relation queries the response was YES. [2023-11-30 08:36:40,500 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8760 conditions, 1508 events. 392/1508 cut-off events. For 34721/52472 co-relation queries the response was YES. Maximal size of possible extension queue 119. Compared 12426 event pairs, 44 based on Foata normal form. 7/1185 useless extension candidates. Maximal degree in co-relation 6862. Up to 443 conditions per place. [2023-11-30 08:36:40,508 INFO L140 encePairwiseOnDemand]: 288/306 looper letters, 170 selfloop transitions, 21 changer transitions 0/428 dead transitions. [2023-11-30 08:36:40,509 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 314 places, 428 transitions, 5127 flow [2023-11-30 08:36:40,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-30 08:36:40,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-30 08:36:40,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1611 transitions. [2023-11-30 08:36:40,511 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7521008403361344 [2023-11-30 08:36:40,512 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1611 transitions. [2023-11-30 08:36:40,512 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1611 transitions. [2023-11-30 08:36:40,512 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:36:40,512 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1611 transitions. [2023-11-30 08:36:40,514 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 230.14285714285714) internal successors, (1611), 7 states have internal predecessors, (1611), 0 states have call successors, (0), 0 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 08:36:40,516 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 306.0) internal successors, (2448), 8 states have internal predecessors, (2448), 0 states have call successors, (0), 0 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 08:36:40,516 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 306.0) internal successors, (2448), 8 states have internal predecessors, (2448), 0 states have call successors, (0), 0 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 08:36:40,517 INFO L307 CegarLoopForPetriNet]: 257 programPoint places, 57 predicate places. [2023-11-30 08:36:40,517 INFO L500 AbstractCegarLoop]: Abstraction has has 314 places, 428 transitions, 5127 flow [2023-11-30 08:36:40,517 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 218.0) internal successors, (1308), 6 states have internal predecessors, (1308), 0 states have call successors, (0), 0 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 08:36:40,517 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:36:40,517 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 08:36:40,517 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-30 08:36:40,518 INFO L425 AbstractCegarLoop]: === Iteration 14 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-30 08:36:40,518 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:36:40,518 INFO L85 PathProgramCache]: Analyzing trace with hash 52881693, now seen corresponding path program 1 times [2023-11-30 08:36:40,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:36:40,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721382526] [2023-11-30 08:36:40,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:36:40,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:36:40,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:36:40,571 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 08:36:40,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:36:40,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721382526] [2023-11-30 08:36:40,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1721382526] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:36:40,572 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:36:40,572 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-30 08:36:40,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297021319] [2023-11-30 08:36:40,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:36:40,572 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-30 08:36:40,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:36:40,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-30 08:36:40,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-11-30 08:36:40,574 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 214 out of 306 [2023-11-30 08:36:40,574 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 314 places, 428 transitions, 5127 flow. Second operand has 6 states, 6 states have (on average 218.16666666666666) internal successors, (1309), 6 states have internal predecessors, (1309), 0 states have call successors, (0), 0 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 08:36:40,574 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:36:40,574 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 214 of 306 [2023-11-30 08:36:40,575 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:36:40,945 INFO L124 PetriNetUnfolderBase]: 394/1745 cut-off events. [2023-11-30 08:36:40,945 INFO L125 PetriNetUnfolderBase]: For 44752/61500 co-relation queries the response was YES. [2023-11-30 08:36:40,962 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10053 conditions, 1745 events. 394/1745 cut-off events. For 44752/61500 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 14365 event pairs, 47 based on Foata normal form. 7/1410 useless extension candidates. Maximal degree in co-relation 8073. Up to 502 conditions per place. [2023-11-30 08:36:40,972 INFO L140 encePairwiseOnDemand]: 287/306 looper letters, 193 selfloop transitions, 26 changer transitions 0/452 dead transitions. [2023-11-30 08:36:40,972 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 319 places, 452 transitions, 6011 flow [2023-11-30 08:36:40,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-30 08:36:40,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-30 08:36:40,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1597 transitions. [2023-11-30 08:36:40,975 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7455648926237162 [2023-11-30 08:36:40,975 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1597 transitions. [2023-11-30 08:36:40,975 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1597 transitions. [2023-11-30 08:36:40,975 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:36:40,975 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1597 transitions. [2023-11-30 08:36:40,977 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 228.14285714285714) internal successors, (1597), 7 states have internal predecessors, (1597), 0 states have call successors, (0), 0 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 08:36:40,979 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 306.0) internal successors, (2448), 8 states have internal predecessors, (2448), 0 states have call successors, (0), 0 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 08:36:40,979 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 306.0) internal successors, (2448), 8 states have internal predecessors, (2448), 0 states have call successors, (0), 0 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 08:36:40,980 INFO L307 CegarLoopForPetriNet]: 257 programPoint places, 62 predicate places. [2023-11-30 08:36:40,980 INFO L500 AbstractCegarLoop]: Abstraction has has 319 places, 452 transitions, 6011 flow [2023-11-30 08:36:40,980 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 218.16666666666666) internal successors, (1309), 6 states have internal predecessors, (1309), 0 states have call successors, (0), 0 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 08:36:40,980 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:36:40,980 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 08:36:40,981 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-30 08:36:40,981 INFO L425 AbstractCegarLoop]: === Iteration 15 === Targeting thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-30 08:36:40,981 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:36:40,981 INFO L85 PathProgramCache]: Analyzing trace with hash -1644497184, now seen corresponding path program 1 times [2023-11-30 08:36:40,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:36:40,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [939219623] [2023-11-30 08:36:40,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:36:40,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:36:40,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:36:41,040 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 08:36:41,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:36:41,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [939219623] [2023-11-30 08:36:41,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [939219623] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:36:41,041 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:36:41,041 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-30 08:36:41,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753503604] [2023-11-30 08:36:41,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:36:41,041 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-30 08:36:41,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:36:41,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-30 08:36:41,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-11-30 08:36:41,043 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 228 out of 306 [2023-11-30 08:36:41,044 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 319 places, 452 transitions, 6011 flow. Second operand has 8 states, 8 states have (on average 230.25) internal successors, (1842), 8 states have internal predecessors, (1842), 0 states have call successors, (0), 0 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 08:36:41,044 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:36:41,044 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 228 of 306 [2023-11-30 08:36:41,044 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:36:41,457 INFO L124 PetriNetUnfolderBase]: 402/1508 cut-off events. [2023-11-30 08:36:41,457 INFO L125 PetriNetUnfolderBase]: For 42683/71371 co-relation queries the response was YES. [2023-11-30 08:36:41,468 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10020 conditions, 1508 events. 402/1508 cut-off events. For 42683/71371 co-relation queries the response was YES. Maximal size of possible extension queue 125. Compared 12496 event pairs, 40 based on Foata normal form. 100/1288 useless extension candidates. Maximal degree in co-relation 7861. Up to 447 conditions per place. [2023-11-30 08:36:41,475 INFO L140 encePairwiseOnDemand]: 290/306 looper letters, 180 selfloop transitions, 20 changer transitions 0/464 dead transitions. [2023-11-30 08:36:41,475 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 328 places, 464 transitions, 6714 flow [2023-11-30 08:36:41,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-30 08:36:41,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-30 08:36:41,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 2357 transitions. [2023-11-30 08:36:41,479 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7702614379084968 [2023-11-30 08:36:41,479 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 2357 transitions. [2023-11-30 08:36:41,479 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 2357 transitions. [2023-11-30 08:36:41,480 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:36:41,480 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 2357 transitions. [2023-11-30 08:36:41,483 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 235.7) internal successors, (2357), 10 states have internal predecessors, (2357), 0 states have call successors, (0), 0 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 08:36:41,486 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 306.0) internal successors, (3366), 11 states have internal predecessors, (3366), 0 states have call successors, (0), 0 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 08:36:41,486 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 306.0) internal successors, (3366), 11 states have internal predecessors, (3366), 0 states have call successors, (0), 0 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 08:36:41,487 INFO L307 CegarLoopForPetriNet]: 257 programPoint places, 71 predicate places. [2023-11-30 08:36:41,487 INFO L500 AbstractCegarLoop]: Abstraction has has 328 places, 464 transitions, 6714 flow [2023-11-30 08:36:41,487 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 230.25) internal successors, (1842), 8 states have internal predecessors, (1842), 0 states have call successors, (0), 0 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 08:36:41,488 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:36:41,488 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 08:36:41,488 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-30 08:36:41,488 INFO L425 AbstractCegarLoop]: === Iteration 16 === Targeting thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-30 08:36:41,488 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:36:41,488 INFO L85 PathProgramCache]: Analyzing trace with hash 560195716, now seen corresponding path program 1 times [2023-11-30 08:36:41,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:36:41,488 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [730552541] [2023-11-30 08:36:41,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:36:41,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:36:41,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:36:41,568 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 08:36:41,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:36:41,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [730552541] [2023-11-30 08:36:41,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [730552541] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:36:41,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:36:41,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-30 08:36:41,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394592081] [2023-11-30 08:36:41,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:36:41,571 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-30 08:36:41,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:36:41,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-30 08:36:41,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-11-30 08:36:41,572 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 228 out of 306 [2023-11-30 08:36:41,573 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 328 places, 464 transitions, 6714 flow. Second operand has 8 states, 8 states have (on average 230.375) internal successors, (1843), 8 states have internal predecessors, (1843), 0 states have call successors, (0), 0 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 08:36:41,573 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:36:41,573 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 228 of 306 [2023-11-30 08:36:41,573 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:36:41,962 INFO L124 PetriNetUnfolderBase]: 425/1692 cut-off events. [2023-11-30 08:36:41,962 INFO L125 PetriNetUnfolderBase]: For 53079/87898 co-relation queries the response was YES. [2023-11-30 08:36:41,983 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11525 conditions, 1692 events. 425/1692 cut-off events. For 53079/87898 co-relation queries the response was YES. Maximal size of possible extension queue 91. Compared 13772 event pairs, 43 based on Foata normal form. 118/1500 useless extension candidates. Maximal degree in co-relation 9171. Up to 488 conditions per place. [2023-11-30 08:36:41,994 INFO L140 encePairwiseOnDemand]: 289/306 looper letters, 201 selfloop transitions, 25 changer transitions 3/487 dead transitions. [2023-11-30 08:36:41,994 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 337 places, 487 transitions, 7766 flow [2023-11-30 08:36:41,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-30 08:36:41,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-30 08:36:41,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 2357 transitions. [2023-11-30 08:36:42,000 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7702614379084968 [2023-11-30 08:36:42,000 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 2357 transitions. [2023-11-30 08:36:42,000 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 2357 transitions. [2023-11-30 08:36:42,000 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:36:42,001 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 2357 transitions. [2023-11-30 08:36:42,003 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 235.7) internal successors, (2357), 10 states have internal predecessors, (2357), 0 states have call successors, (0), 0 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 08:36:42,006 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 306.0) internal successors, (3366), 11 states have internal predecessors, (3366), 0 states have call successors, (0), 0 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 08:36:42,007 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 306.0) internal successors, (3366), 11 states have internal predecessors, (3366), 0 states have call successors, (0), 0 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 08:36:42,007 INFO L307 CegarLoopForPetriNet]: 257 programPoint places, 80 predicate places. [2023-11-30 08:36:42,007 INFO L500 AbstractCegarLoop]: Abstraction has has 337 places, 487 transitions, 7766 flow [2023-11-30 08:36:42,007 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 230.375) internal successors, (1843), 8 states have internal predecessors, (1843), 0 states have call successors, (0), 0 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 08:36:42,008 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:36:42,008 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 08:36:42,008 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-30 08:36:42,008 INFO L425 AbstractCegarLoop]: === Iteration 17 === Targeting thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-30 08:36:42,008 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:36:42,008 INFO L85 PathProgramCache]: Analyzing trace with hash 604731679, now seen corresponding path program 1 times [2023-11-30 08:36:42,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:36:42,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326820355] [2023-11-30 08:36:42,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:36:42,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:36:42,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:36:42,075 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 08:36:42,075 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:36:42,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [326820355] [2023-11-30 08:36:42,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [326820355] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:36:42,075 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:36:42,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-30 08:36:42,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579735574] [2023-11-30 08:36:42,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:36:42,076 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-30 08:36:42,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:36:42,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-30 08:36:42,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-11-30 08:36:42,078 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 214 out of 306 [2023-11-30 08:36:42,078 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 337 places, 487 transitions, 7766 flow. Second operand has 6 states, 6 states have (on average 218.16666666666666) internal successors, (1309), 6 states have internal predecessors, (1309), 0 states have call successors, (0), 0 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 08:36:42,078 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:36:42,079 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 214 of 306 [2023-11-30 08:36:42,079 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:36:42,619 INFO L124 PetriNetUnfolderBase]: 481/1764 cut-off events. [2023-11-30 08:36:42,619 INFO L125 PetriNetUnfolderBase]: For 71386/154785 co-relation queries the response was YES. [2023-11-30 08:36:42,632 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13452 conditions, 1764 events. 481/1764 cut-off events. For 71386/154785 co-relation queries the response was YES. Maximal size of possible extension queue 165. Compared 15293 event pairs, 49 based on Foata normal form. 222/1610 useless extension candidates. Maximal degree in co-relation 9778. Up to 540 conditions per place. [2023-11-30 08:36:42,644 INFO L140 encePairwiseOnDemand]: 288/306 looper letters, 207 selfloop transitions, 21 changer transitions 9/522 dead transitions. [2023-11-30 08:36:42,644 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 342 places, 522 transitions, 8737 flow [2023-11-30 08:36:42,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-30 08:36:42,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-30 08:36:42,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1611 transitions. [2023-11-30 08:36:42,646 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7521008403361344 [2023-11-30 08:36:42,646 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1611 transitions. [2023-11-30 08:36:42,646 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1611 transitions. [2023-11-30 08:36:42,647 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:36:42,647 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1611 transitions. [2023-11-30 08:36:42,649 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 230.14285714285714) internal successors, (1611), 7 states have internal predecessors, (1611), 0 states have call successors, (0), 0 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 08:36:42,651 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 306.0) internal successors, (2448), 8 states have internal predecessors, (2448), 0 states have call successors, (0), 0 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 08:36:42,651 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 306.0) internal successors, (2448), 8 states have internal predecessors, (2448), 0 states have call successors, (0), 0 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 08:36:42,651 INFO L307 CegarLoopForPetriNet]: 257 programPoint places, 85 predicate places. [2023-11-30 08:36:42,652 INFO L500 AbstractCegarLoop]: Abstraction has has 342 places, 522 transitions, 8737 flow [2023-11-30 08:36:42,652 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 218.16666666666666) internal successors, (1309), 6 states have internal predecessors, (1309), 0 states have call successors, (0), 0 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 08:36:42,652 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:36:42,652 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 08:36:42,652 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-11-30 08:36:42,652 INFO L425 AbstractCegarLoop]: === Iteration 18 === Targeting thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-30 08:36:42,653 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:36:42,653 INFO L85 PathProgramCache]: Analyzing trace with hash 194027676, now seen corresponding path program 1 times [2023-11-30 08:36:42,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:36:42,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780234096] [2023-11-30 08:36:42,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:36:42,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:36:42,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:36:42,712 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 08:36:42,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:36:42,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780234096] [2023-11-30 08:36:42,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [780234096] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:36:42,712 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:36:42,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-30 08:36:42,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100352596] [2023-11-30 08:36:42,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:36:42,713 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-30 08:36:42,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:36:42,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-30 08:36:42,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-11-30 08:36:42,714 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 214 out of 306 [2023-11-30 08:36:42,715 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 342 places, 522 transitions, 8737 flow. Second operand has 6 states, 6 states have (on average 218.33333333333334) internal successors, (1310), 6 states have internal predecessors, (1310), 0 states have call successors, (0), 0 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 08:36:42,715 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:36:42,715 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 214 of 306 [2023-11-30 08:36:42,716 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:36:43,210 INFO L124 PetriNetUnfolderBase]: 477/1739 cut-off events. [2023-11-30 08:36:43,210 INFO L125 PetriNetUnfolderBase]: For 75796/202790 co-relation queries the response was YES. [2023-11-30 08:36:43,229 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14206 conditions, 1739 events. 477/1739 cut-off events. For 75796/202790 co-relation queries the response was YES. Maximal size of possible extension queue 163. Compared 15165 event pairs, 42 based on Foata normal form. 298/1687 useless extension candidates. Maximal degree in co-relation 10321. Up to 634 conditions per place. [2023-11-30 08:36:43,242 INFO L140 encePairwiseOnDemand]: 287/306 looper letters, 225 selfloop transitions, 26 changer transitions 14/546 dead transitions. [2023-11-30 08:36:43,242 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 347 places, 546 transitions, 9825 flow [2023-11-30 08:36:43,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-30 08:36:43,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-30 08:36:43,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1597 transitions. [2023-11-30 08:36:43,244 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7455648926237162 [2023-11-30 08:36:43,244 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1597 transitions. [2023-11-30 08:36:43,244 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1597 transitions. [2023-11-30 08:36:43,245 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:36:43,245 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1597 transitions. [2023-11-30 08:36:43,246 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 228.14285714285714) internal successors, (1597), 7 states have internal predecessors, (1597), 0 states have call successors, (0), 0 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 08:36:43,249 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 306.0) internal successors, (2448), 8 states have internal predecessors, (2448), 0 states have call successors, (0), 0 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 08:36:43,249 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 306.0) internal successors, (2448), 8 states have internal predecessors, (2448), 0 states have call successors, (0), 0 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 08:36:43,249 INFO L307 CegarLoopForPetriNet]: 257 programPoint places, 90 predicate places. [2023-11-30 08:36:43,250 INFO L500 AbstractCegarLoop]: Abstraction has has 347 places, 546 transitions, 9825 flow [2023-11-30 08:36:43,250 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 218.33333333333334) internal successors, (1310), 6 states have internal predecessors, (1310), 0 states have call successors, (0), 0 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 08:36:43,250 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:36:43,250 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, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 08:36:43,250 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-11-30 08:36:43,250 INFO L425 AbstractCegarLoop]: === Iteration 19 === Targeting thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-30 08:36:43,251 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:36:43,251 INFO L85 PathProgramCache]: Analyzing trace with hash 369031270, now seen corresponding path program 1 times [2023-11-30 08:36:43,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:36:43,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118700352] [2023-11-30 08:36:43,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:36:43,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:36:43,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:36:43,304 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 08:36:43,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:36:43,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [118700352] [2023-11-30 08:36:43,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [118700352] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:36:43,305 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:36:43,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-30 08:36:43,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962113387] [2023-11-30 08:36:43,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:36:43,306 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-30 08:36:43,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:36:43,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-30 08:36:43,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-30 08:36:43,307 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 238 out of 306 [2023-11-30 08:36:43,308 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 347 places, 546 transitions, 9825 flow. Second operand has 6 states, 6 states have (on average 241.83333333333334) internal successors, (1451), 6 states have internal predecessors, (1451), 0 states have call successors, (0), 0 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 08:36:43,308 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:36:43,308 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 238 of 306 [2023-11-30 08:36:43,308 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:36:43,794 INFO L124 PetriNetUnfolderBase]: 544/2263 cut-off events. [2023-11-30 08:36:43,794 INFO L125 PetriNetUnfolderBase]: For 105581/147338 co-relation queries the response was YES. [2023-11-30 08:36:43,817 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17908 conditions, 2263 events. 544/2263 cut-off events. For 105581/147338 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 19591 event pairs, 55 based on Foata normal form. 17/1936 useless extension candidates. Maximal degree in co-relation 13872. Up to 716 conditions per place. [2023-11-30 08:36:43,831 INFO L140 encePairwiseOnDemand]: 296/306 looper letters, 174 selfloop transitions, 31 changer transitions 14/552 dead transitions. [2023-11-30 08:36:43,831 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 351 places, 552 transitions, 10418 flow [2023-11-30 08:36:43,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-30 08:36:43,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-30 08:36:43,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1722 transitions. [2023-11-30 08:36:43,834 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.803921568627451 [2023-11-30 08:36:43,834 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1722 transitions. [2023-11-30 08:36:43,834 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1722 transitions. [2023-11-30 08:36:43,835 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:36:43,835 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1722 transitions. [2023-11-30 08:36:43,838 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 246.0) internal successors, (1722), 7 states have internal predecessors, (1722), 0 states have call successors, (0), 0 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 08:36:43,839 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 306.0) internal successors, (2448), 8 states have internal predecessors, (2448), 0 states have call successors, (0), 0 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 08:36:43,840 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 306.0) internal successors, (2448), 8 states have internal predecessors, (2448), 0 states have call successors, (0), 0 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 08:36:43,840 INFO L307 CegarLoopForPetriNet]: 257 programPoint places, 94 predicate places. [2023-11-30 08:36:43,840 INFO L500 AbstractCegarLoop]: Abstraction has has 351 places, 552 transitions, 10418 flow [2023-11-30 08:36:43,840 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 241.83333333333334) internal successors, (1451), 6 states have internal predecessors, (1451), 0 states have call successors, (0), 0 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 08:36:43,840 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:36:43,840 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 08:36:43,841 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-11-30 08:36:43,841 INFO L425 AbstractCegarLoop]: === Iteration 20 === Targeting thread2Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-30 08:36:43,841 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:36:43,841 INFO L85 PathProgramCache]: Analyzing trace with hash -1129064017, now seen corresponding path program 1 times [2023-11-30 08:36:43,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:36:43,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [879344337] [2023-11-30 08:36:43,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:36:43,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:36:43,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:36:43,888 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 08:36:43,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:36:43,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [879344337] [2023-11-30 08:36:43,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [879344337] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:36:43,888 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:36:43,888 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-30 08:36:43,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634842314] [2023-11-30 08:36:43,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:36:43,889 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-30 08:36:43,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:36:43,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-30 08:36:43,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-30 08:36:43,890 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 238 out of 306 [2023-11-30 08:36:43,891 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 351 places, 552 transitions, 10418 flow. Second operand has 6 states, 6 states have (on average 242.0) internal successors, (1452), 6 states have internal predecessors, (1452), 0 states have call successors, (0), 0 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 08:36:43,891 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:36:43,891 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 238 of 306 [2023-11-30 08:36:43,891 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:36:44,667 INFO L124 PetriNetUnfolderBase]: 601/2660 cut-off events. [2023-11-30 08:36:44,668 INFO L125 PetriNetUnfolderBase]: For 83116/138713 co-relation queries the response was YES. [2023-11-30 08:36:44,686 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20948 conditions, 2660 events. 601/2660 cut-off events. For 83116/138713 co-relation queries the response was YES. Maximal size of possible extension queue 101. Compared 22856 event pairs, 71 based on Foata normal form. 60/2365 useless extension candidates. Maximal degree in co-relation 16675. Up to 891 conditions per place. [2023-11-30 08:36:44,700 INFO L140 encePairwiseOnDemand]: 296/306 looper letters, 180 selfloop transitions, 30 changer transitions 14/558 dead transitions. [2023-11-30 08:36:44,701 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 355 places, 558 transitions, 11031 flow [2023-11-30 08:36:44,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-30 08:36:44,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-30 08:36:44,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1722 transitions. [2023-11-30 08:36:44,705 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.803921568627451 [2023-11-30 08:36:44,705 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1722 transitions. [2023-11-30 08:36:44,705 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1722 transitions. [2023-11-30 08:36:44,706 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:36:44,706 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1722 transitions. [2023-11-30 08:36:44,709 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 246.0) internal successors, (1722), 7 states have internal predecessors, (1722), 0 states have call successors, (0), 0 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 08:36:44,711 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 306.0) internal successors, (2448), 8 states have internal predecessors, (2448), 0 states have call successors, (0), 0 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 08:36:44,711 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 306.0) internal successors, (2448), 8 states have internal predecessors, (2448), 0 states have call successors, (0), 0 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 08:36:44,711 INFO L307 CegarLoopForPetriNet]: 257 programPoint places, 98 predicate places. [2023-11-30 08:36:44,711 INFO L500 AbstractCegarLoop]: Abstraction has has 355 places, 558 transitions, 11031 flow [2023-11-30 08:36:44,712 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 242.0) internal successors, (1452), 6 states have internal predecessors, (1452), 0 states have call successors, (0), 0 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 08:36:44,712 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:36:44,712 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 08:36:44,712 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-11-30 08:36:44,712 INFO L425 AbstractCegarLoop]: === Iteration 21 === Targeting thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-30 08:36:44,712 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:36:44,712 INFO L85 PathProgramCache]: Analyzing trace with hash 1586606125, now seen corresponding path program 1 times [2023-11-30 08:36:44,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:36:44,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564914450] [2023-11-30 08:36:44,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:36:44,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:36:44,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:36:44,751 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 08:36:44,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:36:44,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [564914450] [2023-11-30 08:36:44,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [564914450] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:36:44,751 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:36:44,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-30 08:36:44,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694705134] [2023-11-30 08:36:44,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:36:44,752 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-30 08:36:44,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:36:44,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-30 08:36:44,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-30 08:36:44,753 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 238 out of 306 [2023-11-30 08:36:44,754 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 355 places, 558 transitions, 11031 flow. Second operand has 6 states, 6 states have (on average 241.83333333333334) internal successors, (1451), 6 states have internal predecessors, (1451), 0 states have call successors, (0), 0 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 08:36:44,754 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:36:44,754 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 238 of 306 [2023-11-30 08:36:44,754 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:36:45,374 INFO L124 PetriNetUnfolderBase]: 607/2861 cut-off events. [2023-11-30 08:36:45,374 INFO L125 PetriNetUnfolderBase]: For 143286/196243 co-relation queries the response was YES. [2023-11-30 08:36:45,402 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22952 conditions, 2861 events. 607/2861 cut-off events. For 143286/196243 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 25018 event pairs, 80 based on Foata normal form. 1/2495 useless extension candidates. Maximal degree in co-relation 18522. Up to 889 conditions per place. [2023-11-30 08:36:45,421 INFO L140 encePairwiseOnDemand]: 298/306 looper letters, 181 selfloop transitions, 28 changer transitions 14/557 dead transitions. [2023-11-30 08:36:45,421 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 359 places, 557 transitions, 11455 flow [2023-11-30 08:36:45,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-30 08:36:45,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-30 08:36:45,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1477 transitions. [2023-11-30 08:36:45,423 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8044662309368191 [2023-11-30 08:36:45,423 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1477 transitions. [2023-11-30 08:36:45,423 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1477 transitions. [2023-11-30 08:36:45,423 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:36:45,423 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1477 transitions. [2023-11-30 08:36:45,424 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 246.16666666666666) internal successors, (1477), 6 states have internal predecessors, (1477), 0 states have call successors, (0), 0 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 08:36:45,426 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 306.0) internal successors, (2142), 7 states have internal predecessors, (2142), 0 states have call successors, (0), 0 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 08:36:45,426 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 306.0) internal successors, (2142), 7 states have internal predecessors, (2142), 0 states have call successors, (0), 0 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 08:36:45,427 INFO L307 CegarLoopForPetriNet]: 257 programPoint places, 102 predicate places. [2023-11-30 08:36:45,427 INFO L500 AbstractCegarLoop]: Abstraction has has 359 places, 557 transitions, 11455 flow [2023-11-30 08:36:45,427 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 241.83333333333334) internal successors, (1451), 6 states have internal predecessors, (1451), 0 states have call successors, (0), 0 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 08:36:45,428 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:36:45,428 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 08:36:45,428 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-11-30 08:36:45,428 INFO L425 AbstractCegarLoop]: === Iteration 22 === Targeting thread2Err8ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-30 08:36:45,428 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:36:45,428 INFO L85 PathProgramCache]: Analyzing trace with hash -423760778, now seen corresponding path program 1 times [2023-11-30 08:36:45,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:36:45,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [157079909] [2023-11-30 08:36:45,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:36:45,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:36:45,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:36:45,483 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 08:36:45,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:36:45,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [157079909] [2023-11-30 08:36:45,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [157079909] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:36:45,483 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:36:45,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-30 08:36:45,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100553283] [2023-11-30 08:36:45,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:36:45,484 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-30 08:36:45,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:36:45,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-30 08:36:45,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-30 08:36:45,486 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 238 out of 306 [2023-11-30 08:36:45,487 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 359 places, 557 transitions, 11455 flow. Second operand has 6 states, 6 states have (on average 242.0) internal successors, (1452), 6 states have internal predecessors, (1452), 0 states have call successors, (0), 0 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 08:36:45,487 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:36:45,487 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 238 of 306 [2023-11-30 08:36:45,487 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:36:45,974 INFO L124 PetriNetUnfolderBase]: 596/2537 cut-off events. [2023-11-30 08:36:45,974 INFO L125 PetriNetUnfolderBase]: For 109799/177821 co-relation queries the response was YES. [2023-11-30 08:36:46,118 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21791 conditions, 2537 events. 596/2537 cut-off events. For 109799/177821 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 21337 event pairs, 67 based on Foata normal form. 66/2276 useless extension candidates. Maximal degree in co-relation 17193. Up to 804 conditions per place. [2023-11-30 08:36:46,158 INFO L140 encePairwiseOnDemand]: 298/306 looper letters, 181 selfloop transitions, 28 changer transitions 14/556 dead transitions. [2023-11-30 08:36:46,159 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 363 places, 556 transitions, 11879 flow [2023-11-30 08:36:46,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-30 08:36:46,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-30 08:36:46,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1477 transitions. [2023-11-30 08:36:46,164 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8044662309368191 [2023-11-30 08:36:46,164 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1477 transitions. [2023-11-30 08:36:46,164 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1477 transitions. [2023-11-30 08:36:46,165 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:36:46,165 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1477 transitions. [2023-11-30 08:36:46,168 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 246.16666666666666) internal successors, (1477), 6 states have internal predecessors, (1477), 0 states have call successors, (0), 0 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 08:36:46,172 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 306.0) internal successors, (2142), 7 states have internal predecessors, (2142), 0 states have call successors, (0), 0 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 08:36:46,172 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 306.0) internal successors, (2142), 7 states have internal predecessors, (2142), 0 states have call successors, (0), 0 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 08:36:46,172 INFO L307 CegarLoopForPetriNet]: 257 programPoint places, 106 predicate places. [2023-11-30 08:36:46,173 INFO L500 AbstractCegarLoop]: Abstraction has has 363 places, 556 transitions, 11879 flow [2023-11-30 08:36:46,173 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 242.0) internal successors, (1452), 6 states have internal predecessors, (1452), 0 states have call successors, (0), 0 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 08:36:46,173 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:36:46,173 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, 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 08:36:46,173 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-11-30 08:36:46,173 INFO L425 AbstractCegarLoop]: === Iteration 23 === Targeting thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-30 08:36:46,173 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:36:46,173 INFO L85 PathProgramCache]: Analyzing trace with hash -783507846, now seen corresponding path program 1 times [2023-11-30 08:36:46,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:36:46,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607437679] [2023-11-30 08:36:46,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:36:46,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:36:46,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:36:46,242 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 08:36:46,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:36:46,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607437679] [2023-11-30 08:36:46,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [607437679] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:36:46,242 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:36:46,242 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-30 08:36:46,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803216786] [2023-11-30 08:36:46,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:36:46,244 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-30 08:36:46,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:36:46,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-30 08:36:46,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-11-30 08:36:46,246 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 228 out of 306 [2023-11-30 08:36:46,247 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 363 places, 556 transitions, 11879 flow. Second operand has 8 states, 8 states have (on average 231.875) internal successors, (1855), 8 states have internal predecessors, (1855), 0 states have call successors, (0), 0 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 08:36:46,247 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:36:46,247 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 228 of 306 [2023-11-30 08:36:46,247 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:36:46,823 INFO L124 PetriNetUnfolderBase]: 608/2694 cut-off events. [2023-11-30 08:36:46,823 INFO L125 PetriNetUnfolderBase]: For 185779/251617 co-relation queries the response was YES. [2023-11-30 08:36:46,849 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23549 conditions, 2694 events. 608/2694 cut-off events. For 185779/251617 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 23118 event pairs, 72 based on Foata normal form. 0/2363 useless extension candidates. Maximal degree in co-relation 18800. Up to 804 conditions per place. [2023-11-30 08:36:46,866 INFO L140 encePairwiseOnDemand]: 290/306 looper letters, 186 selfloop transitions, 40 changer transitions 14/557 dead transitions. [2023-11-30 08:36:46,866 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 371 places, 557 transitions, 12326 flow [2023-11-30 08:36:46,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-30 08:36:46,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-30 08:36:46,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 2352 transitions. [2023-11-30 08:36:46,884 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7686274509803922 [2023-11-30 08:36:46,885 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 2352 transitions. [2023-11-30 08:36:46,885 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 2352 transitions. [2023-11-30 08:36:46,885 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:36:46,885 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 2352 transitions. [2023-11-30 08:36:46,888 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 235.2) internal successors, (2352), 10 states have internal predecessors, (2352), 0 states have call successors, (0), 0 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 08:36:46,890 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 306.0) internal successors, (3366), 11 states have internal predecessors, (3366), 0 states have call successors, (0), 0 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 08:36:46,890 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 306.0) internal successors, (3366), 11 states have internal predecessors, (3366), 0 states have call successors, (0), 0 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 08:36:46,891 INFO L307 CegarLoopForPetriNet]: 257 programPoint places, 114 predicate places. [2023-11-30 08:36:46,891 INFO L500 AbstractCegarLoop]: Abstraction has has 371 places, 557 transitions, 12326 flow [2023-11-30 08:36:46,891 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 231.875) internal successors, (1855), 8 states have internal predecessors, (1855), 0 states have call successors, (0), 0 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 08:36:46,891 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:36:46,891 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, 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 08:36:46,891 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-11-30 08:36:46,891 INFO L425 AbstractCegarLoop]: === Iteration 24 === Targeting thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-30 08:36:46,892 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:36:46,892 INFO L85 PathProgramCache]: Analyzing trace with hash 1481061364, now seen corresponding path program 1 times [2023-11-30 08:36:46,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:36:46,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043798004] [2023-11-30 08:36:46,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:36:46,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:36:46,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:36:46,949 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 08:36:46,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:36:46,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2043798004] [2023-11-30 08:36:46,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2043798004] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:36:46,949 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:36:46,949 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-30 08:36:46,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194618171] [2023-11-30 08:36:46,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:36:46,950 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-30 08:36:46,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:36:46,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-30 08:36:46,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-11-30 08:36:46,951 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 228 out of 306 [2023-11-30 08:36:46,952 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 371 places, 557 transitions, 12326 flow. Second operand has 8 states, 8 states have (on average 232.0) internal successors, (1856), 8 states have internal predecessors, (1856), 0 states have call successors, (0), 0 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 08:36:46,952 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:36:46,952 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 228 of 306 [2023-11-30 08:36:46,952 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:36:47,549 INFO L124 PetriNetUnfolderBase]: 623/2762 cut-off events. [2023-11-30 08:36:47,550 INFO L125 PetriNetUnfolderBase]: For 262077/327935 co-relation queries the response was YES. [2023-11-30 08:36:47,577 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24873 conditions, 2762 events. 623/2762 cut-off events. For 262077/327935 co-relation queries the response was YES. Maximal size of possible extension queue 99. Compared 23825 event pairs, 77 based on Foata normal form. 0/2442 useless extension candidates. Maximal degree in co-relation 19972. Up to 826 conditions per place. [2023-11-30 08:36:47,595 INFO L140 encePairwiseOnDemand]: 290/306 looper letters, 200 selfloop transitions, 42 changer transitions 14/567 dead transitions. [2023-11-30 08:36:47,595 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 379 places, 567 transitions, 13150 flow [2023-11-30 08:36:47,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-30 08:36:47,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-30 08:36:47,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 2351 transitions. [2023-11-30 08:36:47,597 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7683006535947713 [2023-11-30 08:36:47,597 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 2351 transitions. [2023-11-30 08:36:47,597 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 2351 transitions. [2023-11-30 08:36:47,598 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:36:47,598 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 2351 transitions. [2023-11-30 08:36:47,600 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 235.1) internal successors, (2351), 10 states have internal predecessors, (2351), 0 states have call successors, (0), 0 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 08:36:47,602 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 306.0) internal successors, (3366), 11 states have internal predecessors, (3366), 0 states have call successors, (0), 0 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 08:36:47,603 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 306.0) internal successors, (3366), 11 states have internal predecessors, (3366), 0 states have call successors, (0), 0 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 08:36:47,603 INFO L307 CegarLoopForPetriNet]: 257 programPoint places, 122 predicate places. [2023-11-30 08:36:47,603 INFO L500 AbstractCegarLoop]: Abstraction has has 379 places, 567 transitions, 13150 flow [2023-11-30 08:36:47,603 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 232.0) internal successors, (1856), 8 states have internal predecessors, (1856), 0 states have call successors, (0), 0 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 08:36:47,603 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:36:47,603 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, 1, 1, 1, 1, 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 08:36:47,604 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-11-30 08:36:47,604 INFO L425 AbstractCegarLoop]: === Iteration 25 === Targeting thread2Err10ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-30 08:36:47,604 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:36:47,604 INFO L85 PathProgramCache]: Analyzing trace with hash -1706743943, now seen corresponding path program 1 times [2023-11-30 08:36:47,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:36:47,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558081095] [2023-11-30 08:36:47,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:36:47,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:36:47,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:36:47,727 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 08:36:47,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:36:47,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558081095] [2023-11-30 08:36:47,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [558081095] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:36:47,727 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:36:47,727 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-30 08:36:47,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281976148] [2023-11-30 08:36:47,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:36:47,727 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-30 08:36:47,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:36:47,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-30 08:36:47,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-11-30 08:36:47,729 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 228 out of 306 [2023-11-30 08:36:47,730 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 379 places, 567 transitions, 13150 flow. Second operand has 8 states, 8 states have (on average 232.0) internal successors, (1856), 8 states have internal predecessors, (1856), 0 states have call successors, (0), 0 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 08:36:47,730 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:36:47,730 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 228 of 306 [2023-11-30 08:36:47,730 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:36:48,298 INFO L124 PetriNetUnfolderBase]: 625/2606 cut-off events. [2023-11-30 08:36:48,299 INFO L125 PetriNetUnfolderBase]: For 158580/246270 co-relation queries the response was YES. [2023-11-30 08:36:48,324 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24618 conditions, 2606 events. 625/2606 cut-off events. For 158580/246270 co-relation queries the response was YES. Maximal size of possible extension queue 97. Compared 22006 event pairs, 69 based on Foata normal form. 133/2450 useless extension candidates. Maximal degree in co-relation 19578. Up to 798 conditions per place. [2023-11-30 08:36:48,342 INFO L140 encePairwiseOnDemand]: 290/306 looper letters, 197 selfloop transitions, 38 changer transitions 20/568 dead transitions. [2023-11-30 08:36:48,342 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 387 places, 568 transitions, 13639 flow [2023-11-30 08:36:48,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-30 08:36:48,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-30 08:36:48,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 2352 transitions. [2023-11-30 08:36:48,344 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7686274509803922 [2023-11-30 08:36:48,344 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 2352 transitions. [2023-11-30 08:36:48,344 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 2352 transitions. [2023-11-30 08:36:48,345 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:36:48,345 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 2352 transitions. [2023-11-30 08:36:48,347 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 235.2) internal successors, (2352), 10 states have internal predecessors, (2352), 0 states have call successors, (0), 0 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 08:36:48,349 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 306.0) internal successors, (3366), 11 states have internal predecessors, (3366), 0 states have call successors, (0), 0 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 08:36:48,349 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 306.0) internal successors, (3366), 11 states have internal predecessors, (3366), 0 states have call successors, (0), 0 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 08:36:48,350 INFO L307 CegarLoopForPetriNet]: 257 programPoint places, 130 predicate places. [2023-11-30 08:36:48,350 INFO L500 AbstractCegarLoop]: Abstraction has has 387 places, 568 transitions, 13639 flow [2023-11-30 08:36:48,350 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 232.0) internal successors, (1856), 8 states have internal predecessors, (1856), 0 states have call successors, (0), 0 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 08:36:48,350 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:36:48,350 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, 1, 1, 1, 1, 1, 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 08:36:48,350 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-11-30 08:36:48,350 INFO L425 AbstractCegarLoop]: === Iteration 26 === Targeting thread2Err11ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-30 08:36:48,351 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:36:48,351 INFO L85 PathProgramCache]: Analyzing trace with hash -1369453763, now seen corresponding path program 1 times [2023-11-30 08:36:48,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:36:48,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1279744419] [2023-11-30 08:36:48,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:36:48,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:36:48,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:36:48,411 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 08:36:48,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:36:48,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1279744419] [2023-11-30 08:36:48,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1279744419] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:36:48,411 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:36:48,411 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-30 08:36:48,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385078132] [2023-11-30 08:36:48,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:36:48,412 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-30 08:36:48,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:36:48,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-30 08:36:48,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-11-30 08:36:48,413 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 228 out of 306 [2023-11-30 08:36:48,414 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 387 places, 568 transitions, 13639 flow. Second operand has 8 states, 8 states have (on average 232.125) internal successors, (1857), 8 states have internal predecessors, (1857), 0 states have call successors, (0), 0 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 08:36:48,414 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:36:48,414 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 228 of 306 [2023-11-30 08:36:48,414 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:36:49,022 INFO L124 PetriNetUnfolderBase]: 639/2682 cut-off events. [2023-11-30 08:36:49,022 INFO L125 PetriNetUnfolderBase]: For 151969/207628 co-relation queries the response was YES. [2023-11-30 08:36:49,050 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26020 conditions, 2682 events. 639/2682 cut-off events. For 151969/207628 co-relation queries the response was YES. Maximal size of possible extension queue 103. Compared 22845 event pairs, 71 based on Foata normal form. 124/2532 useless extension candidates. Maximal degree in co-relation 20843. Up to 822 conditions per place. [2023-11-30 08:36:49,058 INFO L140 encePairwiseOnDemand]: 290/306 looper letters, 0 selfloop transitions, 0 changer transitions 578/578 dead transitions. [2023-11-30 08:36:49,058 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 395 places, 578 transitions, 14541 flow [2023-11-30 08:36:49,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-30 08:36:49,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-30 08:36:49,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 2351 transitions. [2023-11-30 08:36:49,060 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7683006535947713 [2023-11-30 08:36:49,060 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 2351 transitions. [2023-11-30 08:36:49,060 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 2351 transitions. [2023-11-30 08:36:49,060 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:36:49,061 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 2351 transitions. [2023-11-30 08:36:49,063 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 235.1) internal successors, (2351), 10 states have internal predecessors, (2351), 0 states have call successors, (0), 0 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 08:36:49,064 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 306.0) internal successors, (3366), 11 states have internal predecessors, (3366), 0 states have call successors, (0), 0 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 08:36:49,064 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 306.0) internal successors, (3366), 11 states have internal predecessors, (3366), 0 states have call successors, (0), 0 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 08:36:49,065 INFO L307 CegarLoopForPetriNet]: 257 programPoint places, 138 predicate places. [2023-11-30 08:36:49,065 INFO L500 AbstractCegarLoop]: Abstraction has has 395 places, 578 transitions, 14541 flow [2023-11-30 08:36:49,065 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 232.125) internal successors, (1857), 8 states have internal predecessors, (1857), 0 states have call successors, (0), 0 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 08:36:49,086 INFO L143 wickiGriesTestDumper]: Dumping Owicki-Gries test to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/chl-match-symm.wvr.c_BEv2_AllErrorsAtOnce [2023-11-30 08:36:49,212 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (49 of 50 remaining) [2023-11-30 08:36:49,212 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (48 of 50 remaining) [2023-11-30 08:36:49,212 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (47 of 50 remaining) [2023-11-30 08:36:49,212 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (46 of 50 remaining) [2023-11-30 08:36:49,213 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (45 of 50 remaining) [2023-11-30 08:36:49,213 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (44 of 50 remaining) [2023-11-30 08:36:49,213 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (43 of 50 remaining) [2023-11-30 08:36:49,213 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (42 of 50 remaining) [2023-11-30 08:36:49,213 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (41 of 50 remaining) [2023-11-30 08:36:49,213 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (40 of 50 remaining) [2023-11-30 08:36:49,213 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (39 of 50 remaining) [2023-11-30 08:36:49,214 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (38 of 50 remaining) [2023-11-30 08:36:49,215 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (37 of 50 remaining) [2023-11-30 08:36:49,215 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (36 of 50 remaining) [2023-11-30 08:36:49,215 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (35 of 50 remaining) [2023-11-30 08:36:49,215 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (34 of 50 remaining) [2023-11-30 08:36:49,215 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (33 of 50 remaining) [2023-11-30 08:36:49,215 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (32 of 50 remaining) [2023-11-30 08:36:49,215 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (31 of 50 remaining) [2023-11-30 08:36:49,215 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (30 of 50 remaining) [2023-11-30 08:36:49,215 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 50 remaining) [2023-11-30 08:36:49,215 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 50 remaining) [2023-11-30 08:36:49,215 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 50 remaining) [2023-11-30 08:36:49,215 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread2Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 50 remaining) [2023-11-30 08:36:49,215 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (25 of 50 remaining) [2023-11-30 08:36:49,215 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (24 of 50 remaining) [2023-11-30 08:36:49,216 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 50 remaining) [2023-11-30 08:36:49,216 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 50 remaining) [2023-11-30 08:36:49,216 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 50 remaining) [2023-11-30 08:36:49,216 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 50 remaining) [2023-11-30 08:36:49,216 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 50 remaining) [2023-11-30 08:36:49,216 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 50 remaining) [2023-11-30 08:36:49,216 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 50 remaining) [2023-11-30 08:36:49,216 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 50 remaining) [2023-11-30 08:36:49,216 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 50 remaining) [2023-11-30 08:36:49,216 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 50 remaining) [2023-11-30 08:36:49,216 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 50 remaining) [2023-11-30 08:36:49,217 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 50 remaining) [2023-11-30 08:36:49,217 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 50 remaining) [2023-11-30 08:36:49,217 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 50 remaining) [2023-11-30 08:36:49,217 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 50 remaining) [2023-11-30 08:36:49,217 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 50 remaining) [2023-11-30 08:36:49,217 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 50 remaining) [2023-11-30 08:36:49,217 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 50 remaining) [2023-11-30 08:36:49,217 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 50 remaining) [2023-11-30 08:36:49,217 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 50 remaining) [2023-11-30 08:36:49,217 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 50 remaining) [2023-11-30 08:36:49,217 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 50 remaining) [2023-11-30 08:36:49,217 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 50 remaining) [2023-11-30 08:36:49,217 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread2Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 50 remaining) [2023-11-30 08:36:49,217 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-11-30 08:36:49,218 INFO L457 BasicCegarLoop]: Path program 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] [2023-11-30 08:36:49,221 INFO L222 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-30 08:36:49,221 INFO L172 ceAbstractionStarter]: Computing trace abstraction results [2023-11-30 08:36:49,226 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 08:36:49 BasicIcfg [2023-11-30 08:36:49,226 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-30 08:36:49,227 INFO L158 Benchmark]: Toolchain (without parser) took 15424.99ms. Allocated memory was 559.9MB in the beginning and 1.4GB in the end (delta: 811.6MB). Free memory was 521.7MB in the beginning and 484.2MB in the end (delta: 37.5MB). Peak memory consumption was 845.5MB. Max. memory is 16.0GB. [2023-11-30 08:36:49,227 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 331.4MB. Free memory is still 286.8MB. There was no memory consumed. Max. memory is 16.0GB. [2023-11-30 08:36:49,227 INFO L158 Benchmark]: CACSL2BoogieTranslator took 288.71ms. Allocated memory is still 559.9MB. Free memory was 521.7MB in the beginning and 510.0MB in the end (delta: 11.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. [2023-11-30 08:36:49,227 INFO L158 Benchmark]: Boogie Procedure Inliner took 77.63ms. Allocated memory is still 559.9MB. Free memory was 510.0MB in the beginning and 507.6MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-11-30 08:36:49,227 INFO L158 Benchmark]: Boogie Preprocessor took 18.59ms. Allocated memory is still 559.9MB. Free memory was 507.6MB in the beginning and 505.8MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-11-30 08:36:49,227 INFO L158 Benchmark]: RCFGBuilder took 428.72ms. Allocated memory is still 559.9MB. Free memory was 505.8MB in the beginning and 481.9MB in the end (delta: 23.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.0GB. [2023-11-30 08:36:49,227 INFO L158 Benchmark]: TraceAbstraction took 14607.09ms. Allocated memory was 559.9MB in the beginning and 1.4GB in the end (delta: 811.6MB). Free memory was 481.3MB in the beginning and 484.2MB in the end (delta: -2.9MB). Peak memory consumption was 805.7MB. Max. memory is 16.0GB. [2023-11-30 08:36:49,231 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 331.4MB. Free memory is still 286.8MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 288.71ms. Allocated memory is still 559.9MB. Free memory was 521.7MB in the beginning and 510.0MB in the end (delta: 11.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 77.63ms. Allocated memory is still 559.9MB. Free memory was 510.0MB in the beginning and 507.6MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 18.59ms. Allocated memory is still 559.9MB. Free memory was 507.6MB in the beginning and 505.8MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 428.72ms. Allocated memory is still 559.9MB. Free memory was 505.8MB in the beginning and 481.9MB in the end (delta: 23.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.0GB. * TraceAbstraction took 14607.09ms. Allocated memory was 559.9MB in the beginning and 1.4GB in the end (delta: 811.6MB). Free memory was 481.3MB in the beginning and 484.2MB in the end (delta: -2.9MB). Peak memory consumption was 805.7MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 83]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 83]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 84]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 84]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 85]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 85]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 83]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 83]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 84]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 84]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 85]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 85]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 83]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 83]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 84]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 84]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 85]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 85]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 83]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 83]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 84]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 84]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 85]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 85]: 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, 484 locations, 50 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: 14.5s, OverallIterations: 26, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 12.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2137 SdHoareTripleChecker+Valid, 2.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2137 mSDsluCounter, 2380 SdHoareTripleChecker+Invalid, 1.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1430 mSDsCounter, 184 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3334 IncrementalHoareTripleChecker+Invalid, 3518 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 184 mSolverCounterUnsat, 950 mSDtfsCounter, 3334 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 234 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 206 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 166 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14541occurred in iteration=26, InterpolantAutomatonStates: 190, 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, 1.6s InterpolantComputationTime, 2060 NumberOfCodeBlocks, 2060 NumberOfCodeBlocksAsserted, 26 NumberOfCheckSat, 2034 ConstructedInterpolants, 0 QuantifiedInterpolants, 5222 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 26 InterpolantComputations, 26 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 24 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-30 08:36:49,244 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...