/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/test-context1.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.empire-owicki-175f719-m [2023-11-30 10:10:49,958 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-30 10:10:50,024 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 10:10:50,049 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-30 10:10:50,050 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-30 10:10:50,050 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-30 10:10:50,051 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-30 10:10:50,051 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-30 10:10:50,051 INFO L153 SettingsManager]: * Use SBE=true [2023-11-30 10:10:50,054 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-30 10:10:50,055 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-30 10:10:50,055 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-30 10:10:50,055 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-30 10:10:50,056 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-30 10:10:50,056 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-30 10:10:50,056 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-30 10:10:50,056 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-30 10:10:50,057 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-30 10:10:50,057 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-30 10:10:50,057 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-30 10:10:50,057 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-30 10:10:50,058 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-30 10:10:50,058 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-30 10:10:50,058 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-11-30 10:10:50,058 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-30 10:10:50,058 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-30 10:10:50,058 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-30 10:10:50,059 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-30 10:10:50,059 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-30 10:10:50,059 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-30 10:10:50,060 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-30 10:10:50,060 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-30 10:10:50,060 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-30 10:10:50,060 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2023-11-30 10:10:50,221 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-30 10:10:50,234 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-30 10:10:50,235 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-30 10:10:50,236 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-30 10:10:50,236 INFO L274 PluginConnector]: CDTParser initialized [2023-11-30 10:10:50,237 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/test-context1.wvr.c [2023-11-30 10:10:51,211 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-30 10:10:51,356 INFO L384 CDTParser]: Found 1 translation units. [2023-11-30 10:10:51,356 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/test-context1.wvr.c [2023-11-30 10:10:51,365 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8e70956c7/44f8040ad1434577a7aea891f6d6c6b7/FLAGe1ca944fa [2023-11-30 10:10:51,373 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8e70956c7/44f8040ad1434577a7aea891f6d6c6b7 [2023-11-30 10:10:51,375 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-30 10:10:51,375 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-11-30 10:10:51,376 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-30 10:10:51,376 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-30 10:10:51,379 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-30 10:10:51,379 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 10:10:51" (1/1) ... [2023-11-30 10:10:51,380 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@387f210b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 10:10:51, skipping insertion in model container [2023-11-30 10:10:51,380 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 10:10:51" (1/1) ... [2023-11-30 10:10:51,394 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-30 10:10:51,504 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-30 10:10:51,510 INFO L202 MainTranslator]: Completed pre-run [2023-11-30 10:10:51,523 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-30 10:10:51,527 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-30 10:10:51,527 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-30 10:10:51,532 INFO L206 MainTranslator]: Completed translation [2023-11-30 10:10:51,532 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 10:10:51 WrapperNode [2023-11-30 10:10:51,532 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-30 10:10:51,533 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-30 10:10:51,533 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-30 10:10:51,533 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-30 10:10:51,537 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 10:10:51" (1/1) ... [2023-11-30 10:10:51,541 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 10:10:51" (1/1) ... [2023-11-30 10:10:51,567 INFO L138 Inliner]: procedures = 24, calls = 35, calls flagged for inlining = 11, calls inlined = 11, statements flattened = 157 [2023-11-30 10:10:51,567 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-30 10:10:51,567 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-30 10:10:51,568 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-30 10:10:51,568 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-30 10:10:51,573 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 10:10:51" (1/1) ... [2023-11-30 10:10:51,573 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 10:10:51" (1/1) ... [2023-11-30 10:10:51,575 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 10:10:51" (1/1) ... [2023-11-30 10:10:51,575 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 10:10:51" (1/1) ... [2023-11-30 10:10:51,590 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 10:10:51" (1/1) ... [2023-11-30 10:10:51,592 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 10:10:51" (1/1) ... [2023-11-30 10:10:51,593 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 10:10:51" (1/1) ... [2023-11-30 10:10:51,594 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 10:10:51" (1/1) ... [2023-11-30 10:10:51,595 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-30 10:10:51,596 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-30 10:10:51,596 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-30 10:10:51,596 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-30 10:10:51,596 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 10:10:51" (1/1) ... [2023-11-30 10:10:51,599 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-30 10:10:51,612 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 10:10:51,625 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 10:10:51,648 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 10:10:51,662 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-30 10:10:51,662 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-30 10:10:51,662 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-30 10:10:51,662 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-30 10:10:51,662 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-30 10:10:51,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-30 10:10:51,662 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-30 10:10:51,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-30 10:10:51,662 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-30 10:10:51,663 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-30 10:10:51,663 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-30 10:10:51,663 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-30 10:10:51,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-30 10:10:51,663 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-30 10:10:51,663 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-30 10:10:51,664 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 10:10:51,729 INFO L241 CfgBuilder]: Building ICFG [2023-11-30 10:10:51,731 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-30 10:10:51,953 INFO L282 CfgBuilder]: Performing block encoding [2023-11-30 10:10:52,081 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-30 10:10:52,081 INFO L309 CfgBuilder]: Removed 3 assume(true) statements. [2023-11-30 10:10:52,082 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 10:10:52 BoogieIcfgContainer [2023-11-30 10:10:52,082 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-30 10:10:52,084 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-30 10:10:52,084 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-30 10:10:52,086 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-30 10:10:52,086 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 10:10:51" (1/3) ... [2023-11-30 10:10:52,087 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@412e2520 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 10:10:52, skipping insertion in model container [2023-11-30 10:10:52,087 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 10:10:51" (2/3) ... [2023-11-30 10:10:52,087 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@412e2520 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 10:10:52, skipping insertion in model container [2023-11-30 10:10:52,087 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 10:10:52" (3/3) ... [2023-11-30 10:10:52,088 INFO L112 eAbstractionObserver]: Analyzing ICFG test-context1.wvr.c [2023-11-30 10:10:52,098 INFO L197 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-30 10:10:52,099 INFO L156 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2023-11-30 10:10:52,099 INFO L508 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-30 10:10:52,157 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-30 10:10:52,189 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 135 places, 137 transitions, 288 flow [2023-11-30 10:10:52,250 INFO L124 PetriNetUnfolderBase]: 9/135 cut-off events. [2023-11-30 10:10:52,250 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-30 10:10:52,255 INFO L83 FinitePrefix]: Finished finitePrefix Result has 144 conditions, 135 events. 9/135 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 130 event pairs, 0 based on Foata normal form. 0/112 useless extension candidates. Maximal degree in co-relation 94. Up to 2 conditions per place. [2023-11-30 10:10:52,256 INFO L82 GeneralOperation]: Start removeDead. Operand has 135 places, 137 transitions, 288 flow [2023-11-30 10:10:52,259 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 112 places, 113 transitions, 235 flow [2023-11-30 10:10:52,270 INFO L361 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-30 10:10:52,275 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;@61c53363, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-30 10:10:52,276 INFO L363 AbstractCegarLoop]: Starting to check reachability of 28 error locations. [2023-11-30 10:10:52,294 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-30 10:10:52,294 INFO L124 PetriNetUnfolderBase]: 3/58 cut-off events. [2023-11-30 10:10:52,294 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-30 10:10:52,294 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 10:10:52,295 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 10:10:52,295 INFO L425 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-30 10:10:52,298 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 10:10:52,298 INFO L85 PathProgramCache]: Analyzing trace with hash -722665817, now seen corresponding path program 1 times [2023-11-30 10:10:52,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 10:10:52,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403036074] [2023-11-30 10:10:52,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 10:10:52,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 10:10:52,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 10:10:52,582 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 10:10:52,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 10:10:52,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [403036074] [2023-11-30 10:10:52,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [403036074] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 10:10:52,583 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 10:10:52,584 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-30 10:10:52,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743124701] [2023-11-30 10:10:52,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 10:10:52,593 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-30 10:10:52,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 10:10:52,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-30 10:10:52,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-30 10:10:52,619 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 137 [2023-11-30 10:10:52,624 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 113 transitions, 235 flow. Second operand has 4 states, 4 states have (on average 99.5) internal successors, (398), 4 states have internal predecessors, (398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 10:10:52,624 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 10:10:52,624 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 137 [2023-11-30 10:10:52,625 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 10:10:52,777 INFO L124 PetriNetUnfolderBase]: 62/262 cut-off events. [2023-11-30 10:10:52,777 INFO L125 PetriNetUnfolderBase]: For 27/27 co-relation queries the response was YES. [2023-11-30 10:10:52,778 INFO L83 FinitePrefix]: Finished finitePrefix Result has 400 conditions, 262 events. 62/262 cut-off events. For 27/27 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 900 event pairs, 16 based on Foata normal form. 23/206 useless extension candidates. Maximal degree in co-relation 257. Up to 108 conditions per place. [2023-11-30 10:10:52,781 INFO L140 encePairwiseOnDemand]: 119/137 looper letters, 29 selfloop transitions, 5 changer transitions 2/111 dead transitions. [2023-11-30 10:10:52,781 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 111 transitions, 299 flow [2023-11-30 10:10:52,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-30 10:10:52,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-30 10:10:52,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 538 transitions. [2023-11-30 10:10:52,796 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7854014598540145 [2023-11-30 10:10:52,797 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 538 transitions. [2023-11-30 10:10:52,797 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 538 transitions. [2023-11-30 10:10:52,799 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 10:10:52,801 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 538 transitions. [2023-11-30 10:10:52,805 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 107.6) internal successors, (538), 5 states have internal predecessors, (538), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 10:10:52,809 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 137.0) internal successors, (822), 6 states have internal predecessors, (822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 10:10:52,810 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 137.0) internal successors, (822), 6 states have internal predecessors, (822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 10:10:52,812 INFO L307 CegarLoopForPetriNet]: 112 programPoint places, -2 predicate places. [2023-11-30 10:10:52,813 INFO L500 AbstractCegarLoop]: Abstraction has has 110 places, 111 transitions, 299 flow [2023-11-30 10:10:52,813 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 99.5) internal successors, (398), 4 states have internal predecessors, (398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 10:10:52,813 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 10:10:52,814 INFO L232 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:10:52,814 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-30 10:10:52,814 INFO L425 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-30 10:10:52,815 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 10:10:52,815 INFO L85 PathProgramCache]: Analyzing trace with hash -1411087175, now seen corresponding path program 1 times [2023-11-30 10:10:52,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 10:10:52,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125803426] [2023-11-30 10:10:52,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 10:10:52,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 10:10:52,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 10:10:52,951 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 10:10:52,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 10:10:52,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [125803426] [2023-11-30 10:10:52,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [125803426] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-30 10:10:52,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1634627115] [2023-11-30 10:10:52,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 10:10:52,953 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 10:10:52,953 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 10:10:52,962 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 10:10:53,012 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-30 10:10:53,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 10:10:53,052 INFO L262 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-30 10:10:53,055 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 10:10:53,105 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 10:10:53,105 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-30 10:10:53,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1634627115] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 10:10:53,106 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-30 10:10:53,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2023-11-30 10:10:53,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825451010] [2023-11-30 10:10:53,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 10:10:53,107 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-30 10:10:53,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 10:10:53,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-30 10:10:53,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-30 10:10:53,109 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 137 [2023-11-30 10:10:53,110 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 111 transitions, 299 flow. Second operand has 6 states, 6 states have (on average 100.16666666666667) internal successors, (601), 6 states have internal predecessors, (601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 10:10:53,110 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 10:10:53,110 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 137 [2023-11-30 10:10:53,110 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 10:10:53,198 INFO L124 PetriNetUnfolderBase]: 62/261 cut-off events. [2023-11-30 10:10:53,199 INFO L125 PetriNetUnfolderBase]: For 69/89 co-relation queries the response was YES. [2023-11-30 10:10:53,199 INFO L83 FinitePrefix]: Finished finitePrefix Result has 513 conditions, 261 events. 62/261 cut-off events. For 69/89 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 893 event pairs, 16 based on Foata normal form. 0/183 useless extension candidates. Maximal degree in co-relation 338. Up to 107 conditions per place. [2023-11-30 10:10:53,200 INFO L140 encePairwiseOnDemand]: 131/137 looper letters, 25 selfloop transitions, 8 changer transitions 2/110 dead transitions. [2023-11-30 10:10:53,201 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 110 transitions, 361 flow [2023-11-30 10:10:53,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-30 10:10:53,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-30 10:10:53,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 720 transitions. [2023-11-30 10:10:53,203 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7507820646506778 [2023-11-30 10:10:53,203 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 720 transitions. [2023-11-30 10:10:53,203 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 720 transitions. [2023-11-30 10:10:53,203 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 10:10:53,203 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 720 transitions. [2023-11-30 10:10:53,205 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 102.85714285714286) internal successors, (720), 7 states have internal predecessors, (720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 10:10:53,206 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 137.0) internal successors, (1096), 8 states have internal predecessors, (1096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 10:10:53,207 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 137.0) internal successors, (1096), 8 states have internal predecessors, (1096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 10:10:53,207 INFO L307 CegarLoopForPetriNet]: 112 programPoint places, 3 predicate places. [2023-11-30 10:10:53,208 INFO L500 AbstractCegarLoop]: Abstraction has has 115 places, 110 transitions, 361 flow [2023-11-30 10:10:53,208 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 100.16666666666667) internal successors, (601), 6 states have internal predecessors, (601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 10:10:53,208 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 10:10:53,208 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 10:10:53,216 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-11-30 10:10:53,413 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 10:10:53,415 INFO L425 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-30 10:10:53,416 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 10:10:53,416 INFO L85 PathProgramCache]: Analyzing trace with hash -167342489, now seen corresponding path program 1 times [2023-11-30 10:10:53,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 10:10:53,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2079301528] [2023-11-30 10:10:53,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 10:10:53,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 10:10:53,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 10:10:53,532 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 10:10:53,533 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 10:10:53,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2079301528] [2023-11-30 10:10:53,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2079301528] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 10:10:53,533 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 10:10:53,533 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-30 10:10:53,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277748484] [2023-11-30 10:10:53,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 10:10:53,534 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-30 10:10:53,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 10:10:53,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-30 10:10:53,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-30 10:10:53,536 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 137 [2023-11-30 10:10:53,536 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 110 transitions, 361 flow. Second operand has 4 states, 4 states have (on average 111.0) internal successors, (444), 4 states have internal predecessors, (444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 10:10:53,536 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 10:10:53,536 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 137 [2023-11-30 10:10:53,536 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 10:10:53,593 INFO L124 PetriNetUnfolderBase]: 36/217 cut-off events. [2023-11-30 10:10:53,594 INFO L125 PetriNetUnfolderBase]: For 84/88 co-relation queries the response was YES. [2023-11-30 10:10:53,595 INFO L83 FinitePrefix]: Finished finitePrefix Result has 478 conditions, 217 events. 36/217 cut-off events. For 84/88 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 632 event pairs, 1 based on Foata normal form. 2/170 useless extension candidates. Maximal degree in co-relation 288. Up to 79 conditions per place. [2023-11-30 10:10:53,595 INFO L140 encePairwiseOnDemand]: 127/137 looper letters, 17 selfloop transitions, 5 changer transitions 3/120 dead transitions. [2023-11-30 10:10:53,596 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 120 transitions, 476 flow [2023-11-30 10:10:53,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-30 10:10:53,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-30 10:10:53,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 472 transitions. [2023-11-30 10:10:53,597 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8613138686131386 [2023-11-30 10:10:53,597 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 472 transitions. [2023-11-30 10:10:53,597 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 472 transitions. [2023-11-30 10:10:53,597 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 10:10:53,597 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 472 transitions. [2023-11-30 10:10:53,598 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 118.0) internal successors, (472), 4 states have internal predecessors, (472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 10:10:53,599 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 137.0) internal successors, (685), 5 states have internal predecessors, (685), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 10:10:53,599 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 137.0) internal successors, (685), 5 states have internal predecessors, (685), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 10:10:53,600 INFO L307 CegarLoopForPetriNet]: 112 programPoint places, 6 predicate places. [2023-11-30 10:10:53,600 INFO L500 AbstractCegarLoop]: Abstraction has has 118 places, 120 transitions, 476 flow [2023-11-30 10:10:53,601 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 111.0) internal successors, (444), 4 states have internal predecessors, (444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 10:10:53,601 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 10:10:53,601 INFO L232 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:10:53,601 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-30 10:10:53,601 INFO L425 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-30 10:10:53,601 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 10:10:53,602 INFO L85 PathProgramCache]: Analyzing trace with hash -794029076, now seen corresponding path program 1 times [2023-11-30 10:10:53,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 10:10:53,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286118984] [2023-11-30 10:10:53,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 10:10:53,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 10:10:53,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 10:10:53,692 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 10:10:53,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 10:10:53,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286118984] [2023-11-30 10:10:53,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1286118984] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-30 10:10:53,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [785856654] [2023-11-30 10:10:53,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 10:10:53,693 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 10:10:53,693 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 10:10:53,694 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 10:10:53,712 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-30 10:10:53,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 10:10:53,771 INFO L262 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-30 10:10:53,772 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 10:10:53,805 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 10:10:53,805 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-30 10:10:53,845 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 10:10:53,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [785856654] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-30 10:10:53,845 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-30 10:10:53,846 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2023-11-30 10:10:53,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453271512] [2023-11-30 10:10:53,846 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-30 10:10:53,846 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-30 10:10:53,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 10:10:53,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-30 10:10:53,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2023-11-30 10:10:53,848 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 137 [2023-11-30 10:10:53,849 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 120 transitions, 476 flow. Second operand has 12 states, 12 states have (on average 100.83333333333333) internal successors, (1210), 12 states have internal predecessors, (1210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 10:10:53,849 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 10:10:53,849 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 137 [2023-11-30 10:10:53,849 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 10:10:53,988 INFO L124 PetriNetUnfolderBase]: 39/252 cut-off events. [2023-11-30 10:10:53,988 INFO L125 PetriNetUnfolderBase]: For 159/165 co-relation queries the response was YES. [2023-11-30 10:10:53,989 INFO L83 FinitePrefix]: Finished finitePrefix Result has 678 conditions, 252 events. 39/252 cut-off events. For 159/165 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 802 event pairs, 1 based on Foata normal form. 0/200 useless extension candidates. Maximal degree in co-relation 341. Up to 105 conditions per place. [2023-11-30 10:10:53,990 INFO L140 encePairwiseOnDemand]: 130/137 looper letters, 50 selfloop transitions, 18 changer transitions 3/146 dead transitions. [2023-11-30 10:10:53,990 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 146 transitions, 770 flow [2023-11-30 10:10:53,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-30 10:10:53,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-11-30 10:10:53,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1434 transitions. [2023-11-30 10:10:53,993 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7476538060479666 [2023-11-30 10:10:53,993 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1434 transitions. [2023-11-30 10:10:53,993 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1434 transitions. [2023-11-30 10:10:53,993 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 10:10:53,993 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1434 transitions. [2023-11-30 10:10:53,996 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 102.42857142857143) internal successors, (1434), 14 states have internal predecessors, (1434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 10:10:53,998 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 137.0) internal successors, (2055), 15 states have internal predecessors, (2055), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 10:10:53,998 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 137.0) internal successors, (2055), 15 states have internal predecessors, (2055), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 10:10:53,999 INFO L307 CegarLoopForPetriNet]: 112 programPoint places, 19 predicate places. [2023-11-30 10:10:53,999 INFO L500 AbstractCegarLoop]: Abstraction has has 131 places, 146 transitions, 770 flow [2023-11-30 10:10:54,000 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 100.83333333333333) internal successors, (1210), 12 states have internal predecessors, (1210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 10:10:54,000 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 10:10:54,000 INFO L232 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:10:54,007 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-30 10:10:54,204 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2023-11-30 10:10:54,205 INFO L425 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-30 10:10:54,205 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 10:10:54,205 INFO L85 PathProgramCache]: Analyzing trace with hash 1528026747, now seen corresponding path program 1 times [2023-11-30 10:10:54,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 10:10:54,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112459961] [2023-11-30 10:10:54,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 10:10:54,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 10:10:54,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 10:10:54,255 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 10:10:54,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 10:10:54,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2112459961] [2023-11-30 10:10:54,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2112459961] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-30 10:10:54,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [823910828] [2023-11-30 10:10:54,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 10:10:54,256 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 10:10:54,256 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 10:10:54,257 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 10:10:54,285 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-30 10:10:54,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 10:10:54,330 INFO L262 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-30 10:10:54,337 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 10:10:54,387 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 10:10:54,387 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-30 10:10:54,441 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 10:10:54,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [823910828] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-30 10:10:54,441 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-30 10:10:54,441 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2023-11-30 10:10:54,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742337048] [2023-11-30 10:10:54,442 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-30 10:10:54,442 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-30 10:10:54,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 10:10:54,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-30 10:10:54,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-30 10:10:54,444 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 137 [2023-11-30 10:10:54,444 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 146 transitions, 770 flow. Second operand has 7 states, 7 states have (on average 112.57142857142857) internal successors, (788), 7 states have internal predecessors, (788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 10:10:54,444 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 10:10:54,445 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 137 [2023-11-30 10:10:54,445 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 10:10:54,545 INFO L124 PetriNetUnfolderBase]: 87/480 cut-off events. [2023-11-30 10:10:54,546 INFO L125 PetriNetUnfolderBase]: For 555/573 co-relation queries the response was YES. [2023-11-30 10:10:54,547 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1485 conditions, 480 events. 87/480 cut-off events. For 555/573 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 2503 event pairs, 3 based on Foata normal form. 7/375 useless extension candidates. Maximal degree in co-relation 985. Up to 202 conditions per place. [2023-11-30 10:10:54,548 INFO L140 encePairwiseOnDemand]: 130/137 looper letters, 45 selfloop transitions, 17 changer transitions 5/189 dead transitions. [2023-11-30 10:10:54,549 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 189 transitions, 1360 flow [2023-11-30 10:10:54,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-30 10:10:54,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-30 10:10:54,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 832 transitions. [2023-11-30 10:10:54,550 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.867570385818561 [2023-11-30 10:10:54,550 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 832 transitions. [2023-11-30 10:10:54,550 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 832 transitions. [2023-11-30 10:10:54,551 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 10:10:54,551 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 832 transitions. [2023-11-30 10:10:54,552 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 118.85714285714286) internal successors, (832), 7 states have internal predecessors, (832), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 10:10:54,553 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 137.0) internal successors, (1096), 8 states have internal predecessors, (1096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 10:10:54,553 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 137.0) internal successors, (1096), 8 states have internal predecessors, (1096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 10:10:54,554 INFO L307 CegarLoopForPetriNet]: 112 programPoint places, 25 predicate places. [2023-11-30 10:10:54,554 INFO L500 AbstractCegarLoop]: Abstraction has has 137 places, 189 transitions, 1360 flow [2023-11-30 10:10:54,554 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 112.57142857142857) internal successors, (788), 7 states have internal predecessors, (788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 10:10:54,554 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 10:10:54,554 INFO L232 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:10:54,562 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-30 10:10:54,759 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 10:10:54,759 INFO L425 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-30 10:10:54,759 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 10:10:54,759 INFO L85 PathProgramCache]: Analyzing trace with hash 1528026740, now seen corresponding path program 1 times [2023-11-30 10:10:54,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 10:10:54,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971645927] [2023-11-30 10:10:54,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 10:10:54,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 10:10:54,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 10:10:54,798 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 10:10:54,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 10:10:54,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1971645927] [2023-11-30 10:10:54,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1971645927] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 10:10:54,799 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 10:10:54,799 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-30 10:10:54,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116686712] [2023-11-30 10:10:54,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 10:10:54,799 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-30 10:10:54,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 10:10:54,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-30 10:10:54,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-30 10:10:54,800 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 137 [2023-11-30 10:10:54,800 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 189 transitions, 1360 flow. Second operand has 4 states, 4 states have (on average 111.25) internal successors, (445), 4 states have internal predecessors, (445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 10:10:54,801 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 10:10:54,801 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 137 [2023-11-30 10:10:54,801 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 10:10:54,854 INFO L124 PetriNetUnfolderBase]: 78/442 cut-off events. [2023-11-30 10:10:54,855 INFO L125 PetriNetUnfolderBase]: For 666/684 co-relation queries the response was YES. [2023-11-30 10:10:54,855 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1501 conditions, 442 events. 78/442 cut-off events. For 666/684 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 2177 event pairs, 5 based on Foata normal form. 0/342 useless extension candidates. Maximal degree in co-relation 1030. Up to 185 conditions per place. [2023-11-30 10:10:54,857 INFO L140 encePairwiseOnDemand]: 132/137 looper letters, 52 selfloop transitions, 7 changer transitions 5/185 dead transitions. [2023-11-30 10:10:54,857 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 185 transitions, 1436 flow [2023-11-30 10:10:54,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-30 10:10:54,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-30 10:10:54,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 460 transitions. [2023-11-30 10:10:54,858 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8394160583941606 [2023-11-30 10:10:54,858 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 460 transitions. [2023-11-30 10:10:54,858 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 460 transitions. [2023-11-30 10:10:54,858 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 10:10:54,859 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 460 transitions. [2023-11-30 10:10:54,859 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 115.0) internal successors, (460), 4 states have internal predecessors, (460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 10:10:54,860 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 137.0) internal successors, (685), 5 states have internal predecessors, (685), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 10:10:54,860 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 137.0) internal successors, (685), 5 states have internal predecessors, (685), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 10:10:54,861 INFO L307 CegarLoopForPetriNet]: 112 programPoint places, 28 predicate places. [2023-11-30 10:10:54,861 INFO L500 AbstractCegarLoop]: Abstraction has has 140 places, 185 transitions, 1436 flow [2023-11-30 10:10:54,861 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 111.25) internal successors, (445), 4 states have internal predecessors, (445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 10:10:54,861 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 10:10:54,861 INFO L232 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:10:54,861 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-30 10:10:54,861 INFO L425 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-30 10:10:54,862 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 10:10:54,862 INFO L85 PathProgramCache]: Analyzing trace with hash 1528026741, now seen corresponding path program 1 times [2023-11-30 10:10:54,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 10:10:54,862 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184079018] [2023-11-30 10:10:54,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 10:10:54,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 10:10:54,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 10:10:54,899 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 10:10:54,899 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 10:10:54,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1184079018] [2023-11-30 10:10:54,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1184079018] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 10:10:54,899 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 10:10:54,899 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-30 10:10:54,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131074537] [2023-11-30 10:10:54,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 10:10:54,900 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-30 10:10:54,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 10:10:54,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-30 10:10:54,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-30 10:10:54,901 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 137 [2023-11-30 10:10:54,901 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 185 transitions, 1436 flow. Second operand has 4 states, 4 states have (on average 111.25) internal successors, (445), 4 states have internal predecessors, (445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 10:10:54,901 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 10:10:54,901 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 137 [2023-11-30 10:10:54,901 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 10:10:54,954 INFO L124 PetriNetUnfolderBase]: 66/401 cut-off events. [2023-11-30 10:10:54,954 INFO L125 PetriNetUnfolderBase]: For 831/855 co-relation queries the response was YES. [2023-11-30 10:10:54,955 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1459 conditions, 401 events. 66/401 cut-off events. For 831/855 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1854 event pairs, 9 based on Foata normal form. 0/316 useless extension candidates. Maximal degree in co-relation 1036. Up to 165 conditions per place. [2023-11-30 10:10:54,956 INFO L140 encePairwiseOnDemand]: 132/137 looper letters, 48 selfloop transitions, 6 changer transitions 5/180 dead transitions. [2023-11-30 10:10:54,956 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 180 transitions, 1480 flow [2023-11-30 10:10:54,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-30 10:10:54,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-30 10:10:54,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 459 transitions. [2023-11-30 10:10:54,958 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8375912408759124 [2023-11-30 10:10:54,958 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 459 transitions. [2023-11-30 10:10:54,958 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 459 transitions. [2023-11-30 10:10:54,958 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 10:10:54,958 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 459 transitions. [2023-11-30 10:10:54,959 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 114.75) internal successors, (459), 4 states have internal predecessors, (459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 10:10:54,959 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 137.0) internal successors, (685), 5 states have internal predecessors, (685), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 10:10:54,960 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 137.0) internal successors, (685), 5 states have internal predecessors, (685), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 10:10:54,960 INFO L307 CegarLoopForPetriNet]: 112 programPoint places, 31 predicate places. [2023-11-30 10:10:54,960 INFO L500 AbstractCegarLoop]: Abstraction has has 143 places, 180 transitions, 1480 flow [2023-11-30 10:10:54,960 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 111.25) internal successors, (445), 4 states have internal predecessors, (445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 10:10:54,960 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 10:10:54,960 INFO L232 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:10:54,961 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-30 10:10:54,961 INFO L425 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-30 10:10:54,961 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 10:10:54,961 INFO L85 PathProgramCache]: Analyzing trace with hash -301337199, now seen corresponding path program 1 times [2023-11-30 10:10:54,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 10:10:54,961 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1824248782] [2023-11-30 10:10:54,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 10:10:54,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 10:10:54,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 10:10:55,167 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 10:10:55,168 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 10:10:55,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1824248782] [2023-11-30 10:10:55,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1824248782] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 10:10:55,168 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 10:10:55,168 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-30 10:10:55,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104032394] [2023-11-30 10:10:55,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 10:10:55,168 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-30 10:10:55,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 10:10:55,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-30 10:10:55,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2023-11-30 10:10:55,170 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 137 [2023-11-30 10:10:55,170 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 180 transitions, 1480 flow. Second operand has 8 states, 8 states have (on average 95.5) internal successors, (764), 8 states have internal predecessors, (764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 10:10:55,170 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 10:10:55,170 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 137 [2023-11-30 10:10:55,170 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 10:10:55,290 INFO L124 PetriNetUnfolderBase]: 65/439 cut-off events. [2023-11-30 10:10:55,290 INFO L125 PetriNetUnfolderBase]: For 1252/1282 co-relation queries the response was YES. [2023-11-30 10:10:55,291 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1699 conditions, 439 events. 65/439 cut-off events. For 1252/1282 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1953 event pairs, 9 based on Foata normal form. 4/356 useless extension candidates. Maximal degree in co-relation 1147. Up to 169 conditions per place. [2023-11-30 10:10:55,293 INFO L140 encePairwiseOnDemand]: 123/137 looper letters, 78 selfloop transitions, 15 changer transitions 12/185 dead transitions. [2023-11-30 10:10:55,293 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 153 places, 185 transitions, 1753 flow [2023-11-30 10:10:55,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-30 10:10:55,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-11-30 10:10:55,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1072 transitions. [2023-11-30 10:10:55,295 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7113470471134705 [2023-11-30 10:10:55,295 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1072 transitions. [2023-11-30 10:10:55,295 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1072 transitions. [2023-11-30 10:10:55,295 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 10:10:55,295 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1072 transitions. [2023-11-30 10:10:55,297 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 97.45454545454545) internal successors, (1072), 11 states have internal predecessors, (1072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 10:10:55,299 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 137.0) internal successors, (1644), 12 states have internal predecessors, (1644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 10:10:55,299 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 137.0) internal successors, (1644), 12 states have internal predecessors, (1644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 10:10:55,299 INFO L307 CegarLoopForPetriNet]: 112 programPoint places, 41 predicate places. [2023-11-30 10:10:55,299 INFO L500 AbstractCegarLoop]: Abstraction has has 153 places, 185 transitions, 1753 flow [2023-11-30 10:10:55,300 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 95.5) internal successors, (764), 8 states have internal predecessors, (764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 10:10:55,300 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 10:10:55,300 INFO L232 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:10:55,300 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-30 10:10:55,301 INFO L425 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-30 10:10:55,301 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 10:10:55,301 INFO L85 PathProgramCache]: Analyzing trace with hash -306378817, now seen corresponding path program 1 times [2023-11-30 10:10:55,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 10:10:55,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [910408460] [2023-11-30 10:10:55,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 10:10:55,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 10:10:55,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 10:10:55,371 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-30 10:10:55,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 10:10:55,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [910408460] [2023-11-30 10:10:55,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [910408460] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-30 10:10:55,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1020144111] [2023-11-30 10:10:55,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 10:10:55,372 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 10:10:55,372 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 10:10:55,374 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 10:10:55,404 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-30 10:10:55,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 10:10:55,454 INFO L262 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-30 10:10:55,461 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 10:10:55,547 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-30 10:10:55,547 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-30 10:10:55,646 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-30 10:10:55,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1020144111] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-30 10:10:55,646 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-30 10:10:55,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 3] total 9 [2023-11-30 10:10:55,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732148325] [2023-11-30 10:10:55,647 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-30 10:10:55,647 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-30 10:10:55,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 10:10:55,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-30 10:10:55,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2023-11-30 10:10:55,649 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 137 [2023-11-30 10:10:55,650 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 153 places, 185 transitions, 1753 flow. Second operand has 10 states, 10 states have (on average 111.7) internal successors, (1117), 10 states have internal predecessors, (1117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 10:10:55,650 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 10:10:55,650 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 137 [2023-11-30 10:10:55,650 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 10:10:55,765 INFO L124 PetriNetUnfolderBase]: 78/568 cut-off events. [2023-11-30 10:10:55,765 INFO L125 PetriNetUnfolderBase]: For 2258/2406 co-relation queries the response was YES. [2023-11-30 10:10:55,766 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2253 conditions, 568 events. 78/568 cut-off events. For 2258/2406 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 2927 event pairs, 8 based on Foata normal form. 2/463 useless extension candidates. Maximal degree in co-relation 1682. Up to 201 conditions per place. [2023-11-30 10:10:55,768 INFO L140 encePairwiseOnDemand]: 127/137 looper letters, 41 selfloop transitions, 40 changer transitions 22/222 dead transitions. [2023-11-30 10:10:55,768 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 164 places, 222 transitions, 2634 flow [2023-11-30 10:10:55,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-30 10:10:55,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-11-30 10:10:55,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1379 transitions. [2023-11-30 10:10:55,771 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8388077858880778 [2023-11-30 10:10:55,771 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1379 transitions. [2023-11-30 10:10:55,771 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1379 transitions. [2023-11-30 10:10:55,771 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 10:10:55,771 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1379 transitions. [2023-11-30 10:10:55,773 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 114.91666666666667) internal successors, (1379), 12 states have internal predecessors, (1379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 10:10:55,775 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 137.0) internal successors, (1781), 13 states have internal predecessors, (1781), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 10:10:55,775 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 137.0) internal successors, (1781), 13 states have internal predecessors, (1781), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 10:10:55,776 INFO L307 CegarLoopForPetriNet]: 112 programPoint places, 52 predicate places. [2023-11-30 10:10:55,776 INFO L500 AbstractCegarLoop]: Abstraction has has 164 places, 222 transitions, 2634 flow [2023-11-30 10:10:55,777 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 111.7) internal successors, (1117), 10 states have internal predecessors, (1117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 10:10:55,777 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 10:10:55,777 INFO L232 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:10:55,786 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-30 10:10:55,982 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 10:10:55,982 INFO L425 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-30 10:10:55,982 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 10:10:55,982 INFO L85 PathProgramCache]: Analyzing trace with hash -306378818, now seen corresponding path program 1 times [2023-11-30 10:10:55,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 10:10:55,983 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562405526] [2023-11-30 10:10:55,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 10:10:55,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 10:10:55,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 10:10:56,034 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-30 10:10:56,034 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 10:10:56,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1562405526] [2023-11-30 10:10:56,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1562405526] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-30 10:10:56,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [43324969] [2023-11-30 10:10:56,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 10:10:56,035 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 10:10:56,035 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 10:10:56,036 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 10:10:56,066 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-30 10:10:56,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 10:10:56,118 INFO L262 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-30 10:10:56,120 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 10:10:56,190 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-30 10:10:56,190 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-30 10:10:56,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [43324969] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 10:10:56,191 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-30 10:10:56,191 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2023-11-30 10:10:56,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117773837] [2023-11-30 10:10:56,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 10:10:56,192 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-30 10:10:56,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 10:10:56,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-30 10:10:56,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-30 10:10:56,193 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 137 [2023-11-30 10:10:56,194 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 164 places, 222 transitions, 2634 flow. Second operand has 4 states, 4 states have (on average 111.75) internal successors, (447), 4 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 10:10:56,194 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 10:10:56,194 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 137 [2023-11-30 10:10:56,194 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 10:10:56,258 INFO L124 PetriNetUnfolderBase]: 57/523 cut-off events. [2023-11-30 10:10:56,258 INFO L125 PetriNetUnfolderBase]: For 2756/2926 co-relation queries the response was YES. [2023-11-30 10:10:56,258 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1970 conditions, 523 events. 57/523 cut-off events. For 2756/2926 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 2671 event pairs, 8 based on Foata normal form. 0/450 useless extension candidates. Maximal degree in co-relation 1380. Up to 161 conditions per place. [2023-11-30 10:10:56,260 INFO L140 encePairwiseOnDemand]: 132/137 looper letters, 48 selfloop transitions, 5 changer transitions 22/194 dead transitions. [2023-11-30 10:10:56,260 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 162 places, 194 transitions, 2212 flow [2023-11-30 10:10:56,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-30 10:10:56,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-30 10:10:56,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 457 transitions. [2023-11-30 10:10:56,261 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.833941605839416 [2023-11-30 10:10:56,261 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 457 transitions. [2023-11-30 10:10:56,261 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 457 transitions. [2023-11-30 10:10:56,261 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 10:10:56,262 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 457 transitions. [2023-11-30 10:10:56,262 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 114.25) internal successors, (457), 4 states have internal predecessors, (457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 10:10:56,263 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 137.0) internal successors, (685), 5 states have internal predecessors, (685), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 10:10:56,263 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 137.0) internal successors, (685), 5 states have internal predecessors, (685), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 10:10:56,264 INFO L307 CegarLoopForPetriNet]: 112 programPoint places, 50 predicate places. [2023-11-30 10:10:56,264 INFO L500 AbstractCegarLoop]: Abstraction has has 162 places, 194 transitions, 2212 flow [2023-11-30 10:10:56,264 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 111.75) internal successors, (447), 4 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 10:10:56,264 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 10:10:56,264 INFO L232 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:10:56,271 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-30 10:10:56,469 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-30 10:10:56,469 INFO L425 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-30 10:10:56,469 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 10:10:56,469 INFO L85 PathProgramCache]: Analyzing trace with hash 1584073524, now seen corresponding path program 1 times [2023-11-30 10:10:56,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 10:10:56,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208204332] [2023-11-30 10:10:56,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 10:10:56,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 10:10:56,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 10:10:56,555 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-30 10:10:56,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 10:10:56,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [208204332] [2023-11-30 10:10:56,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [208204332] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-30 10:10:56,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1615018444] [2023-11-30 10:10:56,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 10:10:56,556 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 10:10:56,556 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 10:10:56,557 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 10:10:56,560 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-30 10:10:56,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 10:10:56,637 INFO L262 TraceCheckSpWp]: Trace formula consists of 222 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-30 10:10:56,641 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 10:10:56,700 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-30 10:10:56,700 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-30 10:10:56,786 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-30 10:10:56,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1615018444] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-30 10:10:56,786 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-30 10:10:56,786 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2023-11-30 10:10:56,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [218739696] [2023-11-30 10:10:56,788 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-30 10:10:56,788 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-30 10:10:56,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 10:10:56,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-30 10:10:56,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2023-11-30 10:10:56,790 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 137 [2023-11-30 10:10:56,791 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 162 places, 194 transitions, 2212 flow. Second operand has 13 states, 13 states have (on average 112.3076923076923) internal successors, (1460), 13 states have internal predecessors, (1460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 10:10:56,791 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 10:10:56,791 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 137 [2023-11-30 10:10:56,791 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 10:10:57,020 INFO L124 PetriNetUnfolderBase]: 169/1270 cut-off events. [2023-11-30 10:10:57,020 INFO L125 PetriNetUnfolderBase]: For 9183/9569 co-relation queries the response was YES. [2023-11-30 10:10:57,022 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5469 conditions, 1270 events. 169/1270 cut-off events. For 9183/9569 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 9214 event pairs, 16 based on Foata normal form. 20/1084 useless extension candidates. Maximal degree in co-relation 4624. Up to 395 conditions per place. [2023-11-30 10:10:57,026 INFO L140 encePairwiseOnDemand]: 131/137 looper letters, 77 selfloop transitions, 81 changer transitions 43/321 dead transitions. [2023-11-30 10:10:57,026 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 173 places, 321 transitions, 5513 flow [2023-11-30 10:10:57,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-30 10:10:57,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-11-30 10:10:57,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1418 transitions. [2023-11-30 10:10:57,029 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8625304136253041 [2023-11-30 10:10:57,029 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1418 transitions. [2023-11-30 10:10:57,029 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1418 transitions. [2023-11-30 10:10:57,029 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 10:10:57,030 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1418 transitions. [2023-11-30 10:10:57,032 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 118.16666666666667) internal successors, (1418), 12 states have internal predecessors, (1418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 10:10:57,033 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 137.0) internal successors, (1781), 13 states have internal predecessors, (1781), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 10:10:57,034 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 137.0) internal successors, (1781), 13 states have internal predecessors, (1781), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 10:10:57,034 INFO L307 CegarLoopForPetriNet]: 112 programPoint places, 61 predicate places. [2023-11-30 10:10:57,034 INFO L500 AbstractCegarLoop]: Abstraction has has 173 places, 321 transitions, 5513 flow [2023-11-30 10:10:57,035 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 112.3076923076923) internal successors, (1460), 13 states have internal predecessors, (1460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 10:10:57,035 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 10:10:57,035 INFO L232 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:10:57,042 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-30 10:10:57,240 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 10:10:57,240 INFO L425 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-30 10:10:57,240 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 10:10:57,240 INFO L85 PathProgramCache]: Analyzing trace with hash -1646395530, now seen corresponding path program 2 times [2023-11-30 10:10:57,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 10:10:57,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988638420] [2023-11-30 10:10:57,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 10:10:57,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 10:10:57,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 10:10:57,379 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 0 proven. 92 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 10:10:57,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 10:10:57,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [988638420] [2023-11-30 10:10:57,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [988638420] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-30 10:10:57,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [77070650] [2023-11-30 10:10:57,380 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-30 10:10:57,380 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 10:10:57,380 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 10:10:57,381 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 10:10:57,405 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-30 10:10:57,450 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-30 10:10:57,451 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-30 10:10:57,451 INFO L262 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-30 10:10:57,452 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 10:10:57,576 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-11-30 10:10:57,577 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-30 10:10:57,697 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-11-30 10:10:57,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [77070650] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-30 10:10:57,697 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-30 10:10:57,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 7, 7] total 17 [2023-11-30 10:10:57,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941784983] [2023-11-30 10:10:57,698 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-30 10:10:57,700 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-11-30 10:10:57,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 10:10:57,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-11-30 10:10:57,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=243, Unknown=0, NotChecked=0, Total=306 [2023-11-30 10:10:57,702 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 137 [2023-11-30 10:10:57,703 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 173 places, 321 transitions, 5513 flow. Second operand has 18 states, 18 states have (on average 88.77777777777777) internal successors, (1598), 18 states have internal predecessors, (1598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 10:10:57,703 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 10:10:57,703 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 137 [2023-11-30 10:10:57,703 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 10:10:58,200 INFO L124 PetriNetUnfolderBase]: 123/1131 cut-off events. [2023-11-30 10:10:58,201 INFO L125 PetriNetUnfolderBase]: For 8454/8586 co-relation queries the response was YES. [2023-11-30 10:10:58,203 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4635 conditions, 1131 events. 123/1131 cut-off events. For 8454/8586 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 7832 event pairs, 2 based on Foata normal form. 2/1003 useless extension candidates. Maximal degree in co-relation 3666. Up to 311 conditions per place. [2023-11-30 10:10:58,206 INFO L140 encePairwiseOnDemand]: 122/137 looper letters, 164 selfloop transitions, 32 changer transitions 58/317 dead transitions. [2023-11-30 10:10:58,206 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 194 places, 317 transitions, 5747 flow [2023-11-30 10:10:58,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-11-30 10:10:58,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2023-11-30 10:10:58,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 2123 transitions. [2023-11-30 10:10:58,211 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.6456812652068127 [2023-11-30 10:10:58,211 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 2123 transitions. [2023-11-30 10:10:58,211 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 2123 transitions. [2023-11-30 10:10:58,212 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 10:10:58,212 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 2123 transitions. [2023-11-30 10:10:58,216 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 88.45833333333333) internal successors, (2123), 24 states have internal predecessors, (2123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 10:10:58,219 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 137.0) internal successors, (3425), 25 states have internal predecessors, (3425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 10:10:58,220 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 137.0) internal successors, (3425), 25 states have internal predecessors, (3425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 10:10:58,221 INFO L307 CegarLoopForPetriNet]: 112 programPoint places, 82 predicate places. [2023-11-30 10:10:58,221 INFO L500 AbstractCegarLoop]: Abstraction has has 194 places, 317 transitions, 5747 flow [2023-11-30 10:10:58,221 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 88.77777777777777) internal successors, (1598), 18 states have internal predecessors, (1598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 10:10:58,221 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 10:10:58,222 INFO L232 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:10:58,230 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-30 10:10:58,427 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 10:10:58,427 INFO L425 AbstractCegarLoop]: === Iteration 13 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-30 10:10:58,427 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 10:10:58,428 INFO L85 PathProgramCache]: Analyzing trace with hash 1335435615, now seen corresponding path program 2 times [2023-11-30 10:10:58,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 10:10:58,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [292702610] [2023-11-30 10:10:58,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 10:10:58,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 10:10:58,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 10:10:58,539 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-30 10:10:58,539 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 10:10:58,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [292702610] [2023-11-30 10:10:58,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [292702610] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-30 10:10:58,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [777444911] [2023-11-30 10:10:58,540 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-30 10:10:58,540 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 10:10:58,540 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 10:10:58,552 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 10:10:58,553 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-30 10:10:58,661 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-30 10:10:58,662 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-30 10:10:58,663 INFO L262 TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-30 10:10:58,664 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 10:10:58,847 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-30 10:10:58,847 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-30 10:10:58,957 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-30 10:10:58,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [777444911] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-30 10:10:58,958 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-30 10:10:58,959 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 6] total 18 [2023-11-30 10:10:58,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278079012] [2023-11-30 10:10:58,959 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-30 10:10:58,959 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-11-30 10:10:58,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 10:10:58,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-11-30 10:10:58,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=140, Invalid=202, Unknown=0, NotChecked=0, Total=342 [2023-11-30 10:10:58,961 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 137 [2023-11-30 10:10:58,963 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 194 places, 317 transitions, 5747 flow. Second operand has 19 states, 19 states have (on average 111.42105263157895) internal successors, (2117), 19 states have internal predecessors, (2117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 10:10:58,963 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 10:10:58,963 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 137 [2023-11-30 10:10:58,963 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 10:10:59,408 INFO L124 PetriNetUnfolderBase]: 281/2405 cut-off events. [2023-11-30 10:10:59,408 INFO L125 PetriNetUnfolderBase]: For 24247/24947 co-relation queries the response was YES. [2023-11-30 10:10:59,414 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10690 conditions, 2405 events. 281/2405 cut-off events. For 24247/24947 co-relation queries the response was YES. Maximal size of possible extension queue 111. Compared 22197 event pairs, 0 based on Foata normal form. 34/2184 useless extension candidates. Maximal degree in co-relation 9647. Up to 652 conditions per place. [2023-11-30 10:10:59,424 INFO L140 encePairwiseOnDemand]: 131/137 looper letters, 139 selfloop transitions, 160 changer transitions 145/575 dead transitions. [2023-11-30 10:10:59,425 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 216 places, 575 transitions, 13595 flow [2023-11-30 10:10:59,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-11-30 10:10:59,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2023-11-30 10:10:59,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 2616 transitions. [2023-11-30 10:10:59,429 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.830212630910822 [2023-11-30 10:10:59,429 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 2616 transitions. [2023-11-30 10:10:59,429 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 2616 transitions. [2023-11-30 10:10:59,430 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 10:10:59,430 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 2616 transitions. [2023-11-30 10:10:59,445 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 24 states, 23 states have (on average 113.73913043478261) internal successors, (2616), 23 states have internal predecessors, (2616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 10:10:59,449 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 24 states, 24 states have (on average 137.0) internal successors, (3288), 24 states have internal predecessors, (3288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 10:10:59,449 INFO L81 ComplementDD]: Finished complementDD. Result has 24 states, 24 states have (on average 137.0) internal successors, (3288), 24 states have internal predecessors, (3288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 10:10:59,450 INFO L307 CegarLoopForPetriNet]: 112 programPoint places, 104 predicate places. [2023-11-30 10:10:59,450 INFO L500 AbstractCegarLoop]: Abstraction has has 216 places, 575 transitions, 13595 flow [2023-11-30 10:10:59,450 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 111.42105263157895) internal successors, (2117), 19 states have internal predecessors, (2117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 10:10:59,450 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 10:10:59,450 INFO L232 CegarLoopForPetriNet]: trace histogram [8, 8, 8, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:10:59,459 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-11-30 10:10:59,656 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-11-30 10:10:59,656 INFO L425 AbstractCegarLoop]: === Iteration 14 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-30 10:10:59,656 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 10:10:59,657 INFO L85 PathProgramCache]: Analyzing trace with hash 1159785257, now seen corresponding path program 3 times [2023-11-30 10:10:59,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 10:10:59,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217695078] [2023-11-30 10:10:59,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 10:10:59,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 10:10:59,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 10:10:59,827 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-30 10:10:59,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 10:10:59,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [217695078] [2023-11-30 10:10:59,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [217695078] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-30 10:10:59,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [519920204] [2023-11-30 10:10:59,827 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-30 10:10:59,828 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 10:10:59,828 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 10:10:59,846 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 10:10:59,880 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-30 10:10:59,933 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-30 10:10:59,934 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-30 10:10:59,934 INFO L262 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-30 10:10:59,936 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 10:11:00,087 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2023-11-30 10:11:00,087 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-30 10:11:00,169 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2023-11-30 10:11:00,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [519920204] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-30 10:11:00,169 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-30 10:11:00,170 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 14 [2023-11-30 10:11:00,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652982042] [2023-11-30 10:11:00,170 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-30 10:11:00,170 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-30 10:11:00,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 10:11:00,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-30 10:11:00,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2023-11-30 10:11:00,171 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 137 [2023-11-30 10:11:00,172 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 216 places, 575 transitions, 13595 flow. Second operand has 15 states, 15 states have (on average 104.33333333333333) internal successors, (1565), 15 states have internal predecessors, (1565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 10:11:00,172 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 10:11:00,172 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 137 [2023-11-30 10:11:00,172 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 10:11:00,751 INFO L124 PetriNetUnfolderBase]: 344/3109 cut-off events. [2023-11-30 10:11:00,751 INFO L125 PetriNetUnfolderBase]: For 37611/38642 co-relation queries the response was YES. [2023-11-30 10:11:00,758 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14043 conditions, 3109 events. 344/3109 cut-off events. For 37611/38642 co-relation queries the response was YES. Maximal size of possible extension queue 140. Compared 30894 event pairs, 0 based on Foata normal form. 27/2845 useless extension candidates. Maximal degree in co-relation 13037. Up to 794 conditions per place. [2023-11-30 10:11:00,768 INFO L140 encePairwiseOnDemand]: 127/137 looper letters, 0 selfloop transitions, 0 changer transitions 705/705 dead transitions. [2023-11-30 10:11:00,768 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 234 places, 705 transitions, 18553 flow [2023-11-30 10:11:00,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-11-30 10:11:00,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2023-11-30 10:11:00,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 2316 transitions. [2023-11-30 10:11:00,770 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7684140676841407 [2023-11-30 10:11:00,770 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 2316 transitions. [2023-11-30 10:11:00,770 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 2316 transitions. [2023-11-30 10:11:00,771 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 10:11:00,771 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 2316 transitions. [2023-11-30 10:11:00,773 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 23 states, 22 states have (on average 105.27272727272727) internal successors, (2316), 22 states have internal predecessors, (2316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 10:11:00,776 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 23 states, 23 states have (on average 137.0) internal successors, (3151), 23 states have internal predecessors, (3151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 10:11:00,777 INFO L81 ComplementDD]: Finished complementDD. Result has 23 states, 23 states have (on average 137.0) internal successors, (3151), 23 states have internal predecessors, (3151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 10:11:00,777 INFO L307 CegarLoopForPetriNet]: 112 programPoint places, 122 predicate places. [2023-11-30 10:11:00,778 INFO L500 AbstractCegarLoop]: Abstraction has has 234 places, 705 transitions, 18553 flow [2023-11-30 10:11:00,778 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 104.33333333333333) internal successors, (1565), 15 states have internal predecessors, (1565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 10:11:00,783 INFO L143 wickiGriesTestDumper]: Dumping Owicki-Gries test to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/test-context1.wvr.c_BEv2_AllErrorsAtOnce [2023-11-30 10:11:00,837 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 28 remaining) [2023-11-30 10:11:00,837 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 28 remaining) [2023-11-30 10:11:00,838 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 28 remaining) [2023-11-30 10:11:00,838 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 28 remaining) [2023-11-30 10:11:00,838 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 28 remaining) [2023-11-30 10:11:00,838 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 28 remaining) [2023-11-30 10:11:00,838 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 28 remaining) [2023-11-30 10:11:00,838 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 28 remaining) [2023-11-30 10:11:00,838 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 28 remaining) [2023-11-30 10:11:00,838 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 28 remaining) [2023-11-30 10:11:00,838 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 28 remaining) [2023-11-30 10:11:00,839 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 28 remaining) [2023-11-30 10:11:00,839 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 28 remaining) [2023-11-30 10:11:00,839 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 28 remaining) [2023-11-30 10:11:00,839 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (13 of 28 remaining) [2023-11-30 10:11:00,839 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 28 remaining) [2023-11-30 10:11:00,839 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 28 remaining) [2023-11-30 10:11:00,839 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 28 remaining) [2023-11-30 10:11:00,839 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 28 remaining) [2023-11-30 10:11:00,839 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 28 remaining) [2023-11-30 10:11:00,839 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 28 remaining) [2023-11-30 10:11:00,839 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 28 remaining) [2023-11-30 10:11:00,839 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 28 remaining) [2023-11-30 10:11:00,839 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 28 remaining) [2023-11-30 10:11:00,840 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 28 remaining) [2023-11-30 10:11:00,840 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 28 remaining) [2023-11-30 10:11:00,840 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 28 remaining) [2023-11-30 10:11:00,840 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 28 remaining) [2023-11-30 10:11:00,864 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2023-11-30 10:11:01,044 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-11-30 10:11:01,045 INFO L457 BasicCegarLoop]: Path program histogram: [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 10:11:01,050 INFO L222 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-30 10:11:01,050 INFO L172 ceAbstractionStarter]: Computing trace abstraction results [2023-11-30 10:11:01,057 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 10:11:01 BasicIcfg [2023-11-30 10:11:01,057 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-30 10:11:01,058 INFO L158 Benchmark]: Toolchain (without parser) took 9682.14ms. Allocated memory was 339.7MB in the beginning and 633.3MB in the end (delta: 293.6MB). Free memory was 281.7MB in the beginning and 260.5MB in the end (delta: 21.2MB). Peak memory consumption was 315.2MB. Max. memory is 16.0GB. [2023-11-30 10:11:01,058 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 339.7MB. Free memory is still 287.1MB. There was no memory consumed. Max. memory is 16.0GB. [2023-11-30 10:11:01,058 INFO L158 Benchmark]: CACSL2BoogieTranslator took 155.92ms. Allocated memory is still 339.7MB. Free memory was 281.7MB in the beginning and 270.3MB in the end (delta: 11.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. [2023-11-30 10:11:01,058 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.53ms. Allocated memory is still 339.7MB. Free memory was 270.3MB in the beginning and 268.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-11-30 10:11:01,058 INFO L158 Benchmark]: Boogie Preprocessor took 27.86ms. Allocated memory is still 339.7MB. Free memory was 268.0MB in the beginning and 266.5MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-11-30 10:11:01,058 INFO L158 Benchmark]: RCFGBuilder took 486.73ms. Allocated memory was 339.7MB in the beginning and 501.2MB in the end (delta: 161.5MB). Free memory was 266.5MB in the beginning and 442.2MB in the end (delta: -175.7MB). Peak memory consumption was 18.6MB. Max. memory is 16.0GB. [2023-11-30 10:11:01,059 INFO L158 Benchmark]: TraceAbstraction took 8973.35ms. Allocated memory was 501.2MB in the beginning and 633.3MB in the end (delta: 132.1MB). Free memory was 442.2MB in the beginning and 260.5MB in the end (delta: 181.7MB). Peak memory consumption was 311.3MB. Max. memory is 16.0GB. [2023-11-30 10:11:01,059 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 339.7MB. Free memory is still 287.1MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 155.92ms. Allocated memory is still 339.7MB. Free memory was 281.7MB in the beginning and 270.3MB in the end (delta: 11.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 34.53ms. Allocated memory is still 339.7MB. Free memory was 270.3MB in the beginning and 268.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 27.86ms. Allocated memory is still 339.7MB. Free memory was 268.0MB in the beginning and 266.5MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 486.73ms. Allocated memory was 339.7MB in the beginning and 501.2MB in the end (delta: 161.5MB). Free memory was 266.5MB in the beginning and 442.2MB in the end (delta: -175.7MB). Peak memory consumption was 18.6MB. Max. memory is 16.0GB. * TraceAbstraction took 8973.35ms. Allocated memory was 501.2MB in the beginning and 633.3MB in the end (delta: 132.1MB). Free memory was 442.2MB in the beginning and 260.5MB in the end (delta: 181.7MB). Peak memory consumption was 311.3MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 50]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 50]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 50]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 50]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 51]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 51]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 52]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 52]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 64]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 64]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 65]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 65]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 95]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 95]: 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, 161 locations, 28 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: 8.9s, OverallIterations: 14, TraceHistogramMax: 8, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 2.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 662 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 662 mSDsluCounter, 160 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 97 mSDsCounter, 141 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1022 IncrementalHoareTripleChecker+Invalid, 1163 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 141 mSolverCounterUnsat, 63 mSDtfsCounter, 1022 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1409 GetRequests, 1226 SyntacticMatches, 9 SemanticMatches, 174 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 918 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18553occurred in iteration=14, InterpolantAutomatonStates: 153, 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: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.7s InterpolantComputationTime, 1712 NumberOfCodeBlocks, 1637 NumberOfCodeBlocksAsserted, 25 NumberOfCheckSat, 2250 ConstructedInterpolants, 0 QuantifiedInterpolants, 7797 SizeOfPredicates, 16 NumberOfNonLiveVariables, 1613 ConjunctsInSsa, 52 ConjunctsInUnsatCore, 30 InterpolantComputations, 7 PerfectInterpolantSequences, 333/900 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 14 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-30 10:11:01,081 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...