/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/popl20-simple-queue.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.empire-owicki-175f719-m [2023-11-30 10:03:09,058 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-30 10:03:09,100 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 10:03:09,114 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-30 10:03:09,115 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-30 10:03:09,115 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-30 10:03:09,116 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-30 10:03:09,116 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-30 10:03:09,116 INFO L153 SettingsManager]: * Use SBE=true [2023-11-30 10:03:09,116 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-30 10:03:09,117 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-30 10:03:09,117 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-30 10:03:09,117 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-30 10:03:09,117 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-30 10:03:09,117 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-30 10:03:09,118 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-30 10:03:09,118 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-30 10:03:09,118 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-30 10:03:09,118 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-30 10:03:09,119 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-30 10:03:09,119 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-30 10:03:09,119 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-30 10:03:09,119 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-30 10:03:09,120 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-11-30 10:03:09,120 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-30 10:03:09,120 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-30 10:03:09,120 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-30 10:03:09,121 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-30 10:03:09,121 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-30 10:03:09,121 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-30 10:03:09,121 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-30 10:03:09,121 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-30 10:03:09,122 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-30 10:03:09,122 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2023-11-30 10:03:09,258 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-30 10:03:09,275 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-30 10:03:09,282 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-30 10:03:09,283 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-30 10:03:09,283 INFO L274 PluginConnector]: CDTParser initialized [2023-11-30 10:03:09,284 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-simple-queue.wvr.c [2023-11-30 10:03:10,234 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-30 10:03:10,348 INFO L384 CDTParser]: Found 1 translation units. [2023-11-30 10:03:10,348 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-simple-queue.wvr.c [2023-11-30 10:03:10,354 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2157d5e5d/7303b09352c6407c832b39966bcae98e/FLAGf5847e82f [2023-11-30 10:03:10,366 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2157d5e5d/7303b09352c6407c832b39966bcae98e [2023-11-30 10:03:10,368 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-30 10:03:10,369 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-11-30 10:03:10,370 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-30 10:03:10,370 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-30 10:03:10,373 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-30 10:03:10,373 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 10:03:10" (1/1) ... [2023-11-30 10:03:10,374 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55cc97a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 10:03:10, skipping insertion in model container [2023-11-30 10:03:10,374 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 10:03:10" (1/1) ... [2023-11-30 10:03:10,391 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-30 10:03:10,497 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-30 10:03:10,502 INFO L202 MainTranslator]: Completed pre-run [2023-11-30 10:03:10,521 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-30 10:03:10,526 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-30 10:03:10,526 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-30 10:03:10,531 INFO L206 MainTranslator]: Completed translation [2023-11-30 10:03:10,532 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 10:03:10 WrapperNode [2023-11-30 10:03:10,532 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-30 10:03:10,533 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-30 10:03:10,533 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-30 10:03:10,533 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-30 10:03:10,537 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 10:03:10" (1/1) ... [2023-11-30 10:03:10,542 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 10:03:10" (1/1) ... [2023-11-30 10:03:10,565 INFO L138 Inliner]: procedures = 24, calls = 34, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 143 [2023-11-30 10:03:10,566 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-30 10:03:10,566 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-30 10:03:10,566 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-30 10:03:10,566 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-30 10:03:10,572 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 10:03:10" (1/1) ... [2023-11-30 10:03:10,572 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 10:03:10" (1/1) ... [2023-11-30 10:03:10,574 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 10:03:10" (1/1) ... [2023-11-30 10:03:10,574 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 10:03:10" (1/1) ... [2023-11-30 10:03:10,579 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 10:03:10" (1/1) ... [2023-11-30 10:03:10,586 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 10:03:10" (1/1) ... [2023-11-30 10:03:10,594 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 10:03:10" (1/1) ... [2023-11-30 10:03:10,595 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 10:03:10" (1/1) ... [2023-11-30 10:03:10,597 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-30 10:03:10,598 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-30 10:03:10,598 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-30 10:03:10,598 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-30 10:03:10,598 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 10:03:10" (1/1) ... [2023-11-30 10:03:10,602 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-30 10:03:10,609 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 10:03:10,618 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 10:03:10,619 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 10:03:10,638 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-30 10:03:10,638 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-30 10:03:10,638 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-30 10:03:10,639 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-30 10:03:10,639 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-30 10:03:10,639 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-30 10:03:10,639 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-30 10:03:10,639 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-30 10:03:10,639 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-30 10:03:10,639 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-30 10:03:10,639 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-30 10:03:10,639 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-30 10:03:10,639 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-30 10:03:10,639 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-30 10:03:10,640 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-30 10:03:10,640 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 10:03:10,708 INFO L241 CfgBuilder]: Building ICFG [2023-11-30 10:03:10,710 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-30 10:03:10,948 INFO L282 CfgBuilder]: Performing block encoding [2023-11-30 10:03:11,018 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-30 10:03:11,019 INFO L309 CfgBuilder]: Removed 3 assume(true) statements. [2023-11-30 10:03:11,020 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 10:03:11 BoogieIcfgContainer [2023-11-30 10:03:11,020 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-30 10:03:11,022 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-30 10:03:11,022 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-30 10:03:11,038 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-30 10:03:11,039 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 10:03:10" (1/3) ... [2023-11-30 10:03:11,039 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bbad737 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 10:03:11, skipping insertion in model container [2023-11-30 10:03:11,039 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 10:03:10" (2/3) ... [2023-11-30 10:03:11,039 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bbad737 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 10:03:11, skipping insertion in model container [2023-11-30 10:03:11,039 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 10:03:11" (3/3) ... [2023-11-30 10:03:11,041 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-simple-queue.wvr.c [2023-11-30 10:03:11,062 INFO L197 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-30 10:03:11,063 INFO L156 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-11-30 10:03:11,063 INFO L508 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-30 10:03:11,106 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-30 10:03:11,137 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 132 places, 134 transitions, 282 flow [2023-11-30 10:03:11,181 INFO L124 PetriNetUnfolderBase]: 9/132 cut-off events. [2023-11-30 10:03:11,181 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-30 10:03:11,185 INFO L83 FinitePrefix]: Finished finitePrefix Result has 141 conditions, 132 events. 9/132 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 97 event pairs, 0 based on Foata normal form. 0/117 useless extension candidates. Maximal degree in co-relation 93. Up to 2 conditions per place. [2023-11-30 10:03:11,185 INFO L82 GeneralOperation]: Start removeDead. Operand has 132 places, 134 transitions, 282 flow [2023-11-30 10:03:11,189 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 109 places, 110 transitions, 229 flow [2023-11-30 10:03:11,202 INFO L361 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-30 10:03:11,207 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;@29d0ef7b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-30 10:03:11,207 INFO L363 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2023-11-30 10:03:11,220 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-30 10:03:11,220 INFO L124 PetriNetUnfolderBase]: 3/63 cut-off events. [2023-11-30 10:03:11,220 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-30 10:03:11,220 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 10:03:11,221 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] [2023-11-30 10:03:11,221 INFO L425 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2023-11-30 10:03:11,225 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 10:03:11,225 INFO L85 PathProgramCache]: Analyzing trace with hash -1115640461, now seen corresponding path program 1 times [2023-11-30 10:03:11,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 10:03:11,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450395630] [2023-11-30 10:03:11,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 10:03:11,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 10:03:11,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 10:03:11,466 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 10:03:11,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 10:03:11,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1450395630] [2023-11-30 10:03:11,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1450395630] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 10:03:11,468 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 10:03:11,468 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-30 10:03:11,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542187745] [2023-11-30 10:03:11,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 10:03:11,476 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-30 10:03:11,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 10:03:11,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-30 10:03:11,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-30 10:03:11,504 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 134 [2023-11-30 10:03:11,507 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 110 transitions, 229 flow. Second operand has 4 states, 4 states have (on average 104.5) internal successors, (418), 4 states have internal predecessors, (418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 10:03:11,507 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 10:03:11,507 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 134 [2023-11-30 10:03:11,508 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 10:03:11,592 INFO L124 PetriNetUnfolderBase]: 23/179 cut-off events. [2023-11-30 10:03:11,592 INFO L125 PetriNetUnfolderBase]: For 18/18 co-relation queries the response was YES. [2023-11-30 10:03:11,593 INFO L83 FinitePrefix]: Finished finitePrefix Result has 251 conditions, 179 events. 23/179 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 380 event pairs, 4 based on Foata normal form. 15/167 useless extension candidates. Maximal degree in co-relation 126. Up to 50 conditions per place. [2023-11-30 10:03:11,594 INFO L140 encePairwiseOnDemand]: 120/134 looper letters, 25 selfloop transitions, 5 changer transitions 2/112 dead transitions. [2023-11-30 10:03:11,594 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 112 transitions, 293 flow [2023-11-30 10:03:11,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-30 10:03:11,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-30 10:03:11,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 555 transitions. [2023-11-30 10:03:11,606 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8283582089552238 [2023-11-30 10:03:11,607 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 555 transitions. [2023-11-30 10:03:11,607 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 555 transitions. [2023-11-30 10:03:11,608 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 10:03:11,610 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 555 transitions. [2023-11-30 10:03:11,614 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 111.0) internal successors, (555), 5 states have internal predecessors, (555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 10:03:11,618 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 134.0) internal successors, (804), 6 states have internal predecessors, (804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 10:03:11,618 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 134.0) internal successors, (804), 6 states have internal predecessors, (804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 10:03:11,621 INFO L307 CegarLoopForPetriNet]: 109 programPoint places, 2 predicate places. [2023-11-30 10:03:11,621 INFO L500 AbstractCegarLoop]: Abstraction has has 111 places, 112 transitions, 293 flow [2023-11-30 10:03:11,622 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 104.5) internal successors, (418), 4 states have internal predecessors, (418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 10:03:11,622 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 10:03:11,622 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, 1, 1, 1, 1, 1] [2023-11-30 10:03:11,622 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-30 10:03:11,622 INFO L425 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2023-11-30 10:03:11,623 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 10:03:11,623 INFO L85 PathProgramCache]: Analyzing trace with hash 197400490, now seen corresponding path program 1 times [2023-11-30 10:03:11,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 10:03:11,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190663910] [2023-11-30 10:03:11,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 10:03:11,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 10:03:11,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 10:03:11,744 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 10:03:11,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 10:03:11,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190663910] [2023-11-30 10:03:11,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1190663910] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-30 10:03:11,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [528324802] [2023-11-30 10:03:11,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 10:03:11,746 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 10:03:11,746 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 10:03:11,748 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 10:03:11,756 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 10:03:11,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 10:03:11,838 INFO L262 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-30 10:03:11,842 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 10:03:11,933 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 10:03:11,934 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-30 10:03:11,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [528324802] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 10:03:11,934 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-30 10:03:11,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2023-11-30 10:03:11,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729679614] [2023-11-30 10:03:11,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 10:03:11,935 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-30 10:03:11,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 10:03:11,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-30 10:03:11,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-30 10:03:11,937 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 134 [2023-11-30 10:03:11,938 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 112 transitions, 293 flow. Second operand has 6 states, 6 states have (on average 105.16666666666667) internal successors, (631), 6 states have internal predecessors, (631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 10:03:11,938 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 10:03:11,938 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 134 [2023-11-30 10:03:11,938 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 10:03:12,053 INFO L124 PetriNetUnfolderBase]: 23/178 cut-off events. [2023-11-30 10:03:12,053 INFO L125 PetriNetUnfolderBase]: For 47/49 co-relation queries the response was YES. [2023-11-30 10:03:12,055 INFO L83 FinitePrefix]: Finished finitePrefix Result has 306 conditions, 178 events. 23/178 cut-off events. For 47/49 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 377 event pairs, 4 based on Foata normal form. 0/152 useless extension candidates. Maximal degree in co-relation 150. Up to 49 conditions per place. [2023-11-30 10:03:12,057 INFO L140 encePairwiseOnDemand]: 128/134 looper letters, 21 selfloop transitions, 8 changer transitions 2/111 dead transitions. [2023-11-30 10:03:12,057 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 111 transitions, 347 flow [2023-11-30 10:03:12,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-30 10:03:12,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-30 10:03:12,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 751 transitions. [2023-11-30 10:03:12,059 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8006396588486141 [2023-11-30 10:03:12,059 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 751 transitions. [2023-11-30 10:03:12,059 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 751 transitions. [2023-11-30 10:03:12,060 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 10:03:12,060 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 751 transitions. [2023-11-30 10:03:12,061 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 107.28571428571429) internal successors, (751), 7 states have internal predecessors, (751), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 10:03:12,063 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 134.0) internal successors, (1072), 8 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 10:03:12,063 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 134.0) internal successors, (1072), 8 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 10:03:12,064 INFO L307 CegarLoopForPetriNet]: 109 programPoint places, 7 predicate places. [2023-11-30 10:03:12,064 INFO L500 AbstractCegarLoop]: Abstraction has has 116 places, 111 transitions, 347 flow [2023-11-30 10:03:12,065 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 105.16666666666667) internal successors, (631), 6 states have internal predecessors, (631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 10:03:12,065 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 10:03:12,065 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 10:03:12,080 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 10:03:12,271 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 10:03:12,272 INFO L425 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2023-11-30 10:03:12,272 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 10:03:12,272 INFO L85 PathProgramCache]: Analyzing trace with hash 809273956, now seen corresponding path program 1 times [2023-11-30 10:03:12,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 10:03:12,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391100506] [2023-11-30 10:03:12,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 10:03:12,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 10:03:12,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 10:03:12,386 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 10:03:12,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 10:03:12,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1391100506] [2023-11-30 10:03:12,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1391100506] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 10:03:12,386 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 10:03:12,386 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-30 10:03:12,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623292055] [2023-11-30 10:03:12,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 10:03:12,387 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-30 10:03:12,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 10:03:12,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-30 10:03:12,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-30 10:03:12,389 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 134 [2023-11-30 10:03:12,390 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 111 transitions, 347 flow. Second operand has 6 states, 6 states have (on average 102.5) internal successors, (615), 6 states have internal predecessors, (615), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 10:03:12,390 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 10:03:12,390 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 134 [2023-11-30 10:03:12,390 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 10:03:12,502 INFO L124 PetriNetUnfolderBase]: 22/216 cut-off events. [2023-11-30 10:03:12,502 INFO L125 PetriNetUnfolderBase]: For 127/131 co-relation queries the response was YES. [2023-11-30 10:03:12,503 INFO L83 FinitePrefix]: Finished finitePrefix Result has 420 conditions, 216 events. 22/216 cut-off events. For 127/131 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 505 event pairs, 4 based on Foata normal form. 4/192 useless extension candidates. Maximal degree in co-relation 207. Up to 53 conditions per place. [2023-11-30 10:03:12,503 INFO L140 encePairwiseOnDemand]: 120/134 looper letters, 20 selfloop transitions, 8 changer transitions 9/116 dead transitions. [2023-11-30 10:03:12,504 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 116 transitions, 452 flow [2023-11-30 10:03:12,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-30 10:03:12,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-11-30 10:03:12,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 939 transitions. [2023-11-30 10:03:12,506 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7786069651741293 [2023-11-30 10:03:12,506 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 939 transitions. [2023-11-30 10:03:12,506 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 939 transitions. [2023-11-30 10:03:12,507 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 10:03:12,507 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 939 transitions. [2023-11-30 10:03:12,508 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 104.33333333333333) internal successors, (939), 9 states have internal predecessors, (939), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 10:03:12,510 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 134.0) internal successors, (1340), 10 states have internal predecessors, (1340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 10:03:12,510 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 134.0) internal successors, (1340), 10 states have internal predecessors, (1340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 10:03:12,512 INFO L307 CegarLoopForPetriNet]: 109 programPoint places, 15 predicate places. [2023-11-30 10:03:12,512 INFO L500 AbstractCegarLoop]: Abstraction has has 124 places, 116 transitions, 452 flow [2023-11-30 10:03:12,512 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 102.5) internal successors, (615), 6 states have internal predecessors, (615), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 10:03:12,512 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 10:03:12,513 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, 1, 1, 1, 1, 1] [2023-11-30 10:03:12,513 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-30 10:03:12,513 INFO L425 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2023-11-30 10:03:12,513 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 10:03:12,513 INFO L85 PathProgramCache]: Analyzing trace with hash 1824448292, now seen corresponding path program 1 times [2023-11-30 10:03:12,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 10:03:12,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690988264] [2023-11-30 10:03:12,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 10:03:12,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 10:03:12,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 10:03:12,655 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 10:03:12,655 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 10:03:12,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1690988264] [2023-11-30 10:03:12,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1690988264] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-30 10:03:12,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [138307979] [2023-11-30 10:03:12,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 10:03:12,659 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 10:03:12,659 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 10:03:12,660 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 10:03:12,687 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 10:03:12,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 10:03:12,718 INFO L262 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-30 10:03:12,721 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 10:03:12,761 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 10:03:12,761 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-30 10:03:12,803 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 10:03:12,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [138307979] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-30 10:03:12,804 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-30 10:03:12,804 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2023-11-30 10:03:12,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734497972] [2023-11-30 10:03:12,805 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-30 10:03:12,806 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-30 10:03:12,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 10:03:12,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-30 10:03:12,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2023-11-30 10:03:12,810 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 134 [2023-11-30 10:03:12,811 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 116 transitions, 452 flow. Second operand has 12 states, 12 states have (on average 105.83333333333333) internal successors, (1270), 12 states have internal predecessors, (1270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 10:03:12,811 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 10:03:12,811 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 134 [2023-11-30 10:03:12,811 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 10:03:12,943 INFO L124 PetriNetUnfolderBase]: 25/251 cut-off events. [2023-11-30 10:03:12,944 INFO L125 PetriNetUnfolderBase]: For 242/248 co-relation queries the response was YES. [2023-11-30 10:03:12,945 INFO L83 FinitePrefix]: Finished finitePrefix Result has 612 conditions, 251 events. 25/251 cut-off events. For 242/248 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 707 event pairs, 4 based on Foata normal form. 0/220 useless extension candidates. Maximal degree in co-relation 365. Up to 79 conditions per place. [2023-11-30 10:03:12,946 INFO L140 encePairwiseOnDemand]: 127/134 looper letters, 36 selfloop transitions, 17 changer transitions 9/142 dead transitions. [2023-11-30 10:03:12,946 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 142 transitions, 762 flow [2023-11-30 10:03:12,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-30 10:03:12,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-11-30 10:03:12,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1500 transitions. [2023-11-30 10:03:12,949 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7995735607675906 [2023-11-30 10:03:12,949 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1500 transitions. [2023-11-30 10:03:12,949 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1500 transitions. [2023-11-30 10:03:12,950 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 10:03:12,950 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1500 transitions. [2023-11-30 10:03:12,952 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 107.14285714285714) internal successors, (1500), 14 states have internal predecessors, (1500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 10:03:12,956 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 134.0) internal successors, (2010), 15 states have internal predecessors, (2010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 10:03:12,956 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 134.0) internal successors, (2010), 15 states have internal predecessors, (2010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 10:03:12,957 INFO L307 CegarLoopForPetriNet]: 109 programPoint places, 28 predicate places. [2023-11-30 10:03:12,957 INFO L500 AbstractCegarLoop]: Abstraction has has 137 places, 142 transitions, 762 flow [2023-11-30 10:03:12,958 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 105.83333333333333) internal successors, (1270), 12 states have internal predecessors, (1270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 10:03:12,958 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 10:03:12,958 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 10:03:12,967 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 10:03:13,162 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 10:03:13,163 INFO L425 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2023-11-30 10:03:13,163 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 10:03:13,163 INFO L85 PathProgramCache]: Analyzing trace with hash 1977998299, now seen corresponding path program 1 times [2023-11-30 10:03:13,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 10:03:13,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962632165] [2023-11-30 10:03:13,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 10:03:13,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 10:03:13,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 10:03:13,322 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 10:03:13,322 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 10:03:13,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962632165] [2023-11-30 10:03:13,323 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [962632165] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-30 10:03:13,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [683142612] [2023-11-30 10:03:13,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 10:03:13,323 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 10:03:13,323 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 10:03:13,324 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 10:03:13,350 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 10:03:13,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 10:03:13,394 INFO L262 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-30 10:03:13,397 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 10:03:13,458 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-30 10:03:13,459 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-30 10:03:13,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [683142612] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 10:03:13,459 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-30 10:03:13,459 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 9 [2023-11-30 10:03:13,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375319921] [2023-11-30 10:03:13,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 10:03:13,462 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-30 10:03:13,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 10:03:13,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-30 10:03:13,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-11-30 10:03:13,466 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 134 [2023-11-30 10:03:13,466 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 142 transitions, 762 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 10:03:13,466 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 10:03:13,466 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 134 [2023-11-30 10:03:13,466 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 10:03:13,501 INFO L124 PetriNetUnfolderBase]: 12/215 cut-off events. [2023-11-30 10:03:13,501 INFO L125 PetriNetUnfolderBase]: For 262/262 co-relation queries the response was YES. [2023-11-30 10:03:13,504 INFO L83 FinitePrefix]: Finished finitePrefix Result has 517 conditions, 215 events. 12/215 cut-off events. For 262/262 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 478 event pairs, 0 based on Foata normal form. 0/200 useless extension candidates. Maximal degree in co-relation 370. Up to 59 conditions per place. [2023-11-30 10:03:13,505 INFO L140 encePairwiseOnDemand]: 129/134 looper letters, 4 selfloop transitions, 3 changer transitions 57/140 dead transitions. [2023-11-30 10:03:13,505 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 140 transitions, 772 flow [2023-11-30 10:03:13,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-30 10:03:13,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-30 10:03:13,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 450 transitions. [2023-11-30 10:03:13,507 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8395522388059702 [2023-11-30 10:03:13,507 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 450 transitions. [2023-11-30 10:03:13,507 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 450 transitions. [2023-11-30 10:03:13,507 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 10:03:13,508 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 450 transitions. [2023-11-30 10:03:13,508 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 112.5) internal successors, (450), 4 states have internal predecessors, (450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 10:03:13,509 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 134.0) internal successors, (670), 5 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 10:03:13,509 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 134.0) internal successors, (670), 5 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 10:03:13,511 INFO L307 CegarLoopForPetriNet]: 109 programPoint places, 29 predicate places. [2023-11-30 10:03:13,511 INFO L500 AbstractCegarLoop]: Abstraction has has 138 places, 140 transitions, 772 flow [2023-11-30 10:03:13,511 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 10:03:13,511 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 10:03:13,511 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, 1, 1, 1, 1, 1] [2023-11-30 10:03:13,523 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 10:03:13,716 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 10:03:13,716 INFO L425 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2023-11-30 10:03:13,717 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 10:03:13,717 INFO L85 PathProgramCache]: Analyzing trace with hash 1376434591, now seen corresponding path program 2 times [2023-11-30 10:03:13,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 10:03:13,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067671401] [2023-11-30 10:03:13,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 10:03:13,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 10:03:13,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 10:03:13,855 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 10:03:13,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 10:03:13,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2067671401] [2023-11-30 10:03:13,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2067671401] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-30 10:03:13,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1030962195] [2023-11-30 10:03:13,858 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-30 10:03:13,858 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 10:03:13,858 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 10:03:13,859 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 10:03:13,863 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 10:03:13,917 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-30 10:03:13,917 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-30 10:03:13,918 INFO L262 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-30 10:03:13,925 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 10:03:14,041 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 10:03:14,041 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-30 10:03:14,143 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 10:03:14,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1030962195] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-30 10:03:14,144 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-30 10:03:14,145 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 7, 7] total 17 [2023-11-30 10:03:14,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29193478] [2023-11-30 10:03:14,145 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-30 10:03:14,145 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-11-30 10:03:14,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 10:03:14,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-11-30 10:03:14,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=243, Unknown=0, NotChecked=0, Total=306 [2023-11-30 10:03:14,148 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 134 [2023-11-30 10:03:14,149 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 140 transitions, 772 flow. Second operand has 18 states, 18 states have (on average 93.77777777777777) internal successors, (1688), 18 states have internal predecessors, (1688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 10:03:14,149 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 10:03:14,149 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 134 [2023-11-30 10:03:14,149 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 10:03:14,485 INFO L124 PetriNetUnfolderBase]: 14/230 cut-off events. [2023-11-30 10:03:14,485 INFO L125 PetriNetUnfolderBase]: For 416/416 co-relation queries the response was YES. [2023-11-30 10:03:14,485 INFO L83 FinitePrefix]: Finished finitePrefix Result has 669 conditions, 230 events. 14/230 cut-off events. For 416/416 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 482 event pairs, 0 based on Foata normal form. 0/214 useless extension candidates. Maximal degree in co-relation 507. Up to 71 conditions per place. [2023-11-30 10:03:14,486 INFO L140 encePairwiseOnDemand]: 120/134 looper letters, 0 selfloop transitions, 0 changer transitions 152/152 dead transitions. [2023-11-30 10:03:14,486 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 160 places, 152 transitions, 1050 flow [2023-11-30 10:03:14,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-11-30 10:03:14,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2023-11-30 10:03:14,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 2239 transitions. [2023-11-30 10:03:14,489 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.6962064676616916 [2023-11-30 10:03:14,489 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 2239 transitions. [2023-11-30 10:03:14,490 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 2239 transitions. [2023-11-30 10:03:14,490 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 10:03:14,490 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 2239 transitions. [2023-11-30 10:03:14,494 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 93.29166666666667) internal successors, (2239), 24 states have internal predecessors, (2239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 10:03:14,497 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 134.0) internal successors, (3350), 25 states have internal predecessors, (3350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 10:03:14,498 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 134.0) internal successors, (3350), 25 states have internal predecessors, (3350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 10:03:14,499 INFO L307 CegarLoopForPetriNet]: 109 programPoint places, 51 predicate places. [2023-11-30 10:03:14,499 INFO L500 AbstractCegarLoop]: Abstraction has has 160 places, 152 transitions, 1050 flow [2023-11-30 10:03:14,500 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 93.77777777777777) internal successors, (1688), 18 states have internal predecessors, (1688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 10:03:14,506 INFO L143 wickiGriesTestDumper]: Dumping Owicki-Gries test to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/popl20-simple-queue.wvr.c_BEv2_AllErrorsAtOnce [2023-11-30 10:03:14,533 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 12 remaining) [2023-11-30 10:03:14,533 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 12 remaining) [2023-11-30 10:03:14,533 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 12 remaining) [2023-11-30 10:03:14,533 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 12 remaining) [2023-11-30 10:03:14,533 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 12 remaining) [2023-11-30 10:03:14,533 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 12 remaining) [2023-11-30 10:03:14,533 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 12 remaining) [2023-11-30 10:03:14,533 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 12 remaining) [2023-11-30 10:03:14,533 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 12 remaining) [2023-11-30 10:03:14,534 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 12 remaining) [2023-11-30 10:03:14,534 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 12 remaining) [2023-11-30 10:03:14,534 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 12 remaining) [2023-11-30 10:03:14,542 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 10:03:14,742 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 10:03:14,742 INFO L457 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1] [2023-11-30 10:03:14,746 INFO L222 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-30 10:03:14,746 INFO L172 ceAbstractionStarter]: Computing trace abstraction results [2023-11-30 10:03:14,750 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 10:03:14 BasicIcfg [2023-11-30 10:03:14,750 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-30 10:03:14,750 INFO L158 Benchmark]: Toolchain (without parser) took 4381.10ms. Allocated memory is still 589.3MB. Free memory was 536.4MB in the beginning and 498.0MB in the end (delta: 38.5MB). Peak memory consumption was 36.7MB. Max. memory is 16.0GB. [2023-11-30 10:03:14,750 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 373.3MB. Free memory is still 322.9MB. There was no memory consumed. Max. memory is 16.0GB. [2023-11-30 10:03:14,750 INFO L158 Benchmark]: CACSL2BoogieTranslator took 162.39ms. Allocated memory is still 589.3MB. Free memory was 536.4MB in the beginning and 525.0MB in the end (delta: 11.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. [2023-11-30 10:03:14,750 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.03ms. Allocated memory is still 589.3MB. Free memory was 525.0MB in the beginning and 522.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-11-30 10:03:14,751 INFO L158 Benchmark]: Boogie Preprocessor took 30.95ms. Allocated memory is still 589.3MB. Free memory was 522.9MB in the beginning and 521.4MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-11-30 10:03:14,751 INFO L158 Benchmark]: RCFGBuilder took 422.67ms. Allocated memory is still 589.3MB. Free memory was 521.4MB in the beginning and 497.4MB in the end (delta: 24.0MB). Peak memory consumption was 23.1MB. Max. memory is 16.0GB. [2023-11-30 10:03:14,751 INFO L158 Benchmark]: TraceAbstraction took 3727.59ms. Allocated memory is still 589.3MB. Free memory was 496.9MB in the beginning and 498.0MB in the end (delta: -1.1MB). There was no memory consumed. Max. memory is 16.0GB. [2023-11-30 10:03:14,752 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 373.3MB. Free memory is still 322.9MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 162.39ms. Allocated memory is still 589.3MB. Free memory was 536.4MB in the beginning and 525.0MB in the end (delta: 11.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 33.03ms. Allocated memory is still 589.3MB. Free memory was 525.0MB in the beginning and 522.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 30.95ms. Allocated memory is still 589.3MB. Free memory was 522.9MB in the beginning and 521.4MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 422.67ms. Allocated memory is still 589.3MB. Free memory was 521.4MB in the beginning and 497.4MB in the end (delta: 24.0MB). Peak memory consumption was 23.1MB. Max. memory is 16.0GB. * TraceAbstraction took 3727.59ms. Allocated memory is still 589.3MB. Free memory was 496.9MB in the beginning and 498.0MB in the end (delta: -1.1MB). There was no memory consumed. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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: 63]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 63]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 96]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 96]: 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, 150 locations, 12 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: 3.6s, OverallIterations: 6, TraceHistogramMax: 5, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 295 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 295 mSDsluCounter, 139 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 94 mSDsCounter, 13 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 539 IncrementalHoareTripleChecker+Invalid, 552 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 13 mSolverCounterUnsat, 45 mSDtfsCounter, 539 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 516 GetRequests, 427 SyntacticMatches, 5 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 364 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1050occurred in iteration=6, InterpolantAutomatonStates: 63, 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, 0.2s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 694 NumberOfCodeBlocks, 654 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 838 ConstructedInterpolants, 0 QuantifiedInterpolants, 1744 SizeOfPredicates, 13 NumberOfNonLiveVariables, 580 ConjunctsInSsa, 22 ConjunctsInUnsatCore, 12 InterpolantComputations, 4 PerfectInterpolantSequences, 136/316 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 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-30 10:03:14,764 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...