/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/pthread-deagle/arithmetic_prog_ok.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.empire-owicki-175f719-m [2023-11-30 10:12:40,284 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-30 10:12:40,330 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 10:12:40,350 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-30 10:12:40,351 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-30 10:12:40,351 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-30 10:12:40,352 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-30 10:12:40,352 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-30 10:12:40,353 INFO L153 SettingsManager]: * Use SBE=true [2023-11-30 10:12:40,353 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-30 10:12:40,353 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-30 10:12:40,354 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-30 10:12:40,354 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-30 10:12:40,354 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-30 10:12:40,354 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-30 10:12:40,355 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-30 10:12:40,355 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-30 10:12:40,355 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-30 10:12:40,356 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-30 10:12:40,356 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-30 10:12:40,356 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-30 10:12:40,357 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-30 10:12:40,357 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-30 10:12:40,357 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-11-30 10:12:40,358 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-30 10:12:40,358 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-30 10:12:40,358 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-30 10:12:40,359 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-30 10:12:40,359 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-30 10:12:40,359 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-30 10:12:40,360 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-30 10:12:40,360 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-30 10:12:40,360 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-30 10:12:40,361 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2023-11-30 10:12:40,576 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-30 10:12:40,598 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-30 10:12:40,600 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-30 10:12:40,602 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-30 10:12:40,602 INFO L274 PluginConnector]: CDTParser initialized [2023-11-30 10:12:40,603 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-deagle/arithmetic_prog_ok.i [2023-11-30 10:12:41,610 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-30 10:12:41,869 INFO L384 CDTParser]: Found 1 translation units. [2023-11-30 10:12:41,870 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-deagle/arithmetic_prog_ok.i [2023-11-30 10:12:41,882 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4f1ac1466/8044a89e12aa4cf187dc3f8ee788731b/FLAGc3bda9e9f [2023-11-30 10:12:41,898 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4f1ac1466/8044a89e12aa4cf187dc3f8ee788731b [2023-11-30 10:12:41,902 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-30 10:12:41,905 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-11-30 10:12:41,906 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-30 10:12:41,906 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-30 10:12:41,909 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-30 10:12:41,909 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 10:12:41" (1/1) ... [2023-11-30 10:12:41,910 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e01ed6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 10:12:41, skipping insertion in model container [2023-11-30 10:12:41,910 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 10:12:41" (1/1) ... [2023-11-30 10:12:41,961 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-30 10:12:42,305 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-30 10:12:42,319 INFO L202 MainTranslator]: Completed pre-run [2023-11-30 10:12:42,379 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-30 10:12:42,421 INFO L206 MainTranslator]: Completed translation [2023-11-30 10:12:42,423 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 10:12:42 WrapperNode [2023-11-30 10:12:42,424 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-30 10:12:42,425 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-30 10:12:42,425 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-30 10:12:42,425 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-30 10:12:42,431 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 10:12:42" (1/1) ... [2023-11-30 10:12:42,457 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 10:12:42" (1/1) ... [2023-11-30 10:12:42,492 INFO L138 Inliner]: procedures = 244, calls = 55, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 83 [2023-11-30 10:12:42,492 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-30 10:12:42,493 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-30 10:12:42,493 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-30 10:12:42,493 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-30 10:12:42,500 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 10:12:42" (1/1) ... [2023-11-30 10:12:42,500 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 10:12:42" (1/1) ... [2023-11-30 10:12:42,514 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 10:12:42" (1/1) ... [2023-11-30 10:12:42,514 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 10:12:42" (1/1) ... [2023-11-30 10:12:42,518 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 10:12:42" (1/1) ... [2023-11-30 10:12:42,521 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 10:12:42" (1/1) ... [2023-11-30 10:12:42,522 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 10:12:42" (1/1) ... [2023-11-30 10:12:42,533 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 10:12:42" (1/1) ... [2023-11-30 10:12:42,539 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-30 10:12:42,540 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-30 10:12:42,540 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-30 10:12:42,540 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-30 10:12:42,540 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 10:12:42" (1/1) ... [2023-11-30 10:12:42,544 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-30 10:12:42,561 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 10:12:42,572 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 10:12:42,602 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 10:12:42,609 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-30 10:12:42,609 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-30 10:12:42,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-30 10:12:42,609 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-30 10:12:42,609 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-30 10:12:42,609 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-30 10:12:42,609 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-30 10:12:42,610 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-30 10:12:42,610 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-30 10:12:42,611 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-30 10:12:42,611 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-30 10:12:42,611 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-30 10:12:42,611 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-30 10:12:42,611 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-30 10:12:42,611 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-30 10:12:42,612 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 10:12:42,743 INFO L241 CfgBuilder]: Building ICFG [2023-11-30 10:12:42,744 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-30 10:12:43,013 INFO L282 CfgBuilder]: Performing block encoding [2023-11-30 10:12:43,042 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-30 10:12:43,042 INFO L309 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-30 10:12:43,043 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 10:12:43 BoogieIcfgContainer [2023-11-30 10:12:43,044 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-30 10:12:43,055 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-30 10:12:43,055 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-30 10:12:43,058 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-30 10:12:43,058 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 10:12:41" (1/3) ... [2023-11-30 10:12:43,059 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cff7903 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 10:12:43, skipping insertion in model container [2023-11-30 10:12:43,059 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 10:12:42" (2/3) ... [2023-11-30 10:12:43,060 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cff7903 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 10:12:43, skipping insertion in model container [2023-11-30 10:12:43,060 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 10:12:43" (3/3) ... [2023-11-30 10:12:43,061 INFO L112 eAbstractionObserver]: Analyzing ICFG arithmetic_prog_ok.i [2023-11-30 10:12:43,075 INFO L197 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-30 10:12:43,075 INFO L156 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-11-30 10:12:43,075 INFO L508 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-30 10:12:43,145 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-30 10:12:43,175 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 151 places, 155 transitions, 324 flow [2023-11-30 10:12:43,241 INFO L124 PetriNetUnfolderBase]: 11/153 cut-off events. [2023-11-30 10:12:43,242 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-30 10:12:43,251 INFO L83 FinitePrefix]: Finished finitePrefix Result has 162 conditions, 153 events. 11/153 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 232 event pairs, 0 based on Foata normal form. 0/134 useless extension candidates. Maximal degree in co-relation 91. Up to 3 conditions per place. [2023-11-30 10:12:43,252 INFO L82 GeneralOperation]: Start removeDead. Operand has 151 places, 155 transitions, 324 flow [2023-11-30 10:12:43,257 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 131 places, 132 transitions, 273 flow [2023-11-30 10:12:43,265 INFO L361 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-30 10:12:43,271 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;@6ca1f6d2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-30 10:12:43,271 INFO L363 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2023-11-30 10:12:43,287 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-30 10:12:43,287 INFO L124 PetriNetUnfolderBase]: 2/77 cut-off events. [2023-11-30 10:12:43,287 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-30 10:12:43,287 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 10:12:43,288 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 10:12:43,288 INFO L425 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-30 10:12:43,293 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 10:12:43,293 INFO L85 PathProgramCache]: Analyzing trace with hash 1664630862, now seen corresponding path program 1 times [2023-11-30 10:12:43,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 10:12:43,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704927239] [2023-11-30 10:12:43,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 10:12:43,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 10:12:43,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 10:12:43,683 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 10:12:43,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 10:12:43,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1704927239] [2023-11-30 10:12:43,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1704927239] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 10:12:43,684 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 10:12:43,684 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-30 10:12:43,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537189259] [2023-11-30 10:12:43,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 10:12:43,694 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-30 10:12:43,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 10:12:43,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-30 10:12:43,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-30 10:12:43,720 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 155 [2023-11-30 10:12:43,723 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 132 transitions, 273 flow. Second operand has 4 states, 4 states have (on average 122.75) internal successors, (491), 4 states have internal predecessors, (491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 10:12:43,723 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 10:12:43,723 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 155 [2023-11-30 10:12:43,724 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 10:12:44,022 INFO L124 PetriNetUnfolderBase]: 264/945 cut-off events. [2023-11-30 10:12:44,022 INFO L125 PetriNetUnfolderBase]: For 72/72 co-relation queries the response was YES. [2023-11-30 10:12:44,029 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1492 conditions, 945 events. 264/945 cut-off events. For 72/72 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 5527 event pairs, 53 based on Foata normal form. 49/826 useless extension candidates. Maximal degree in co-relation 1310. Up to 292 conditions per place. [2023-11-30 10:12:44,037 INFO L140 encePairwiseOnDemand]: 142/155 looper letters, 55 selfloop transitions, 8 changer transitions 0/165 dead transitions. [2023-11-30 10:12:44,037 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 165 transitions, 477 flow [2023-11-30 10:12:44,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-30 10:12:44,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-30 10:12:44,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 685 transitions. [2023-11-30 10:12:44,054 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8838709677419355 [2023-11-30 10:12:44,055 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 685 transitions. [2023-11-30 10:12:44,055 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 685 transitions. [2023-11-30 10:12:44,059 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 10:12:44,061 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 685 transitions. [2023-11-30 10:12:44,065 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 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 10:12:44,074 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 155.0) internal successors, (930), 6 states have internal predecessors, (930), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 10:12:44,075 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 155.0) internal successors, (930), 6 states have internal predecessors, (930), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 10:12:44,080 INFO L307 CegarLoopForPetriNet]: 131 programPoint places, 4 predicate places. [2023-11-30 10:12:44,080 INFO L500 AbstractCegarLoop]: Abstraction has has 135 places, 165 transitions, 477 flow [2023-11-30 10:12:44,080 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 122.75) internal successors, (491), 4 states have internal predecessors, (491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 10:12:44,081 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 10:12:44,081 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 10:12:44,081 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-30 10:12:44,081 INFO L425 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-30 10:12:44,083 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 10:12:44,083 INFO L85 PathProgramCache]: Analyzing trace with hash -1072111155, now seen corresponding path program 1 times [2023-11-30 10:12:44,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 10:12:44,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959949699] [2023-11-30 10:12:44,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 10:12:44,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 10:12:44,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 10:12:44,269 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 10:12:44,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 10:12:44,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1959949699] [2023-11-30 10:12:44,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1959949699] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 10:12:44,271 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 10:12:44,271 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-30 10:12:44,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012684112] [2023-11-30 10:12:44,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 10:12:44,273 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-30 10:12:44,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 10:12:44,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-30 10:12:44,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-30 10:12:44,276 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 155 [2023-11-30 10:12:44,277 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 165 transitions, 477 flow. Second operand has 4 states, 4 states have (on average 127.0) internal successors, (508), 4 states have internal predecessors, (508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 10:12:44,277 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 10:12:44,277 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 155 [2023-11-30 10:12:44,277 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 10:12:44,489 INFO L124 PetriNetUnfolderBase]: 444/1158 cut-off events. [2023-11-30 10:12:44,490 INFO L125 PetriNetUnfolderBase]: For 368/392 co-relation queries the response was YES. [2023-11-30 10:12:44,493 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2518 conditions, 1158 events. 444/1158 cut-off events. For 368/392 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 6795 event pairs, 25 based on Foata normal form. 14/1032 useless extension candidates. Maximal degree in co-relation 2349. Up to 408 conditions per place. [2023-11-30 10:12:44,498 INFO L140 encePairwiseOnDemand]: 148/155 looper letters, 73 selfloop transitions, 4 changer transitions 1/203 dead transitions. [2023-11-30 10:12:44,498 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 203 transitions, 785 flow [2023-11-30 10:12:44,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-30 10:12:44,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-30 10:12:44,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 673 transitions. [2023-11-30 10:12:44,500 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8683870967741936 [2023-11-30 10:12:44,501 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 673 transitions. [2023-11-30 10:12:44,501 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 673 transitions. [2023-11-30 10:12:44,501 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 10:12:44,501 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 673 transitions. [2023-11-30 10:12:44,503 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 134.6) internal successors, (673), 5 states have internal predecessors, (673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 10:12:44,504 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 155.0) internal successors, (930), 6 states have internal predecessors, (930), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 10:12:44,504 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 155.0) internal successors, (930), 6 states have internal predecessors, (930), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 10:12:44,505 INFO L307 CegarLoopForPetriNet]: 131 programPoint places, 8 predicate places. [2023-11-30 10:12:44,505 INFO L500 AbstractCegarLoop]: Abstraction has has 139 places, 203 transitions, 785 flow [2023-11-30 10:12:44,506 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 127.0) internal successors, (508), 4 states have internal predecessors, (508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 10:12:44,506 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 10:12:44,506 INFO L232 CegarLoopForPetriNet]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 10:12:44,506 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-30 10:12:44,506 INFO L425 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-30 10:12:44,507 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 10:12:44,507 INFO L85 PathProgramCache]: Analyzing trace with hash -975142114, now seen corresponding path program 1 times [2023-11-30 10:12:44,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 10:12:44,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941094376] [2023-11-30 10:12:44,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 10:12:44,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 10:12:44,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 10:12:44,637 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 10:12:44,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 10:12:44,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941094376] [2023-11-30 10:12:44,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1941094376] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-30 10:12:44,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1825516953] [2023-11-30 10:12:44,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 10:12:44,639 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 10:12:44,639 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 10:12:44,644 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 10:12:44,675 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 10:12:44,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 10:12:44,763 INFO L262 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-30 10:12:44,769 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 10:12:44,869 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 10:12:44,871 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-30 10:12:44,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1825516953] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 10:12:44,873 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-30 10:12:44,873 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2023-11-30 10:12:44,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055938489] [2023-11-30 10:12:44,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 10:12:44,876 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-30 10:12:44,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 10:12:44,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-30 10:12:44,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-30 10:12:44,878 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 155 [2023-11-30 10:12:44,879 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 203 transitions, 785 flow. Second operand has 5 states, 5 states have (on average 124.0) internal successors, (620), 5 states have internal predecessors, (620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 10:12:44,879 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 10:12:44,879 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 155 [2023-11-30 10:12:44,879 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 10:12:45,157 INFO L124 PetriNetUnfolderBase]: 472/1408 cut-off events. [2023-11-30 10:12:45,157 INFO L125 PetriNetUnfolderBase]: For 963/1317 co-relation queries the response was YES. [2023-11-30 10:12:45,161 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3648 conditions, 1408 events. 472/1408 cut-off events. For 963/1317 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 7970 event pairs, 77 based on Foata normal form. 61/1280 useless extension candidates. Maximal degree in co-relation 3371. Up to 473 conditions per place. [2023-11-30 10:12:45,170 INFO L140 encePairwiseOnDemand]: 146/155 looper letters, 112 selfloop transitions, 15 changer transitions 1/236 dead transitions. [2023-11-30 10:12:45,170 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 236 transitions, 1216 flow [2023-11-30 10:12:45,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-30 10:12:45,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-30 10:12:45,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 933 transitions. [2023-11-30 10:12:45,173 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8599078341013825 [2023-11-30 10:12:45,173 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 933 transitions. [2023-11-30 10:12:45,173 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 933 transitions. [2023-11-30 10:12:45,174 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 10:12:45,174 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 933 transitions. [2023-11-30 10:12:45,176 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 133.28571428571428) internal successors, (933), 7 states have internal predecessors, (933), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 10:12:45,178 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 155.0) internal successors, (1240), 8 states have internal predecessors, (1240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 10:12:45,179 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 155.0) internal successors, (1240), 8 states have internal predecessors, (1240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 10:12:45,180 INFO L307 CegarLoopForPetriNet]: 131 programPoint places, 14 predicate places. [2023-11-30 10:12:45,180 INFO L500 AbstractCegarLoop]: Abstraction has has 145 places, 236 transitions, 1216 flow [2023-11-30 10:12:45,181 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 124.0) internal successors, (620), 5 states have internal predecessors, (620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 10:12:45,181 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 10:12:45,181 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 10:12:45,191 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-30 10:12:45,391 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 10:12:45,392 INFO L425 AbstractCegarLoop]: === Iteration 4 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-30 10:12:45,392 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 10:12:45,392 INFO L85 PathProgramCache]: Analyzing trace with hash -1968861876, now seen corresponding path program 1 times [2023-11-30 10:12:45,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 10:12:45,392 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697288552] [2023-11-30 10:12:45,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 10:12:45,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 10:12:45,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 10:12:45,521 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 10:12:45,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 10:12:45,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [697288552] [2023-11-30 10:12:45,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [697288552] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 10:12:45,522 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 10:12:45,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-30 10:12:45,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799558664] [2023-11-30 10:12:45,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 10:12:45,522 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-30 10:12:45,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 10:12:45,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-30 10:12:45,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-30 10:12:45,524 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 155 [2023-11-30 10:12:45,524 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 236 transitions, 1216 flow. Second operand has 3 states, 3 states have (on average 130.66666666666666) internal successors, (392), 3 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 10:12:45,525 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 10:12:45,525 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 155 [2023-11-30 10:12:45,525 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 10:12:45,634 INFO L124 PetriNetUnfolderBase]: 151/716 cut-off events. [2023-11-30 10:12:45,634 INFO L125 PetriNetUnfolderBase]: For 1320/1613 co-relation queries the response was YES. [2023-11-30 10:12:45,636 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1804 conditions, 716 events. 151/716 cut-off events. For 1320/1613 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 3701 event pairs, 43 based on Foata normal form. 60/674 useless extension candidates. Maximal degree in co-relation 1546. Up to 193 conditions per place. [2023-11-30 10:12:45,640 INFO L140 encePairwiseOnDemand]: 147/155 looper letters, 26 selfloop transitions, 37 changer transitions 2/189 dead transitions. [2023-11-30 10:12:45,640 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 189 transitions, 1030 flow [2023-11-30 10:12:45,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-30 10:12:45,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-30 10:12:45,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 405 transitions. [2023-11-30 10:12:45,643 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8709677419354839 [2023-11-30 10:12:45,643 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 405 transitions. [2023-11-30 10:12:45,643 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 405 transitions. [2023-11-30 10:12:45,643 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 10:12:45,643 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 405 transitions. [2023-11-30 10:12:45,644 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 135.0) internal successors, (405), 3 states have internal predecessors, (405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 10:12:45,645 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 155.0) internal successors, (620), 4 states have internal predecessors, (620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 10:12:45,646 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 155.0) internal successors, (620), 4 states have internal predecessors, (620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 10:12:45,647 INFO L307 CegarLoopForPetriNet]: 131 programPoint places, 16 predicate places. [2023-11-30 10:12:45,647 INFO L500 AbstractCegarLoop]: Abstraction has has 147 places, 189 transitions, 1030 flow [2023-11-30 10:12:45,648 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 130.66666666666666) internal successors, (392), 3 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 10:12:45,648 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 10:12:45,648 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 10:12:45,648 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-30 10:12:45,648 INFO L425 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-30 10:12:45,649 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 10:12:45,649 INFO L85 PathProgramCache]: Analyzing trace with hash -592948341, now seen corresponding path program 1 times [2023-11-30 10:12:45,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 10:12:45,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309154695] [2023-11-30 10:12:45,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 10:12:45,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 10:12:45,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 10:12:45,810 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 10:12:45,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 10:12:45,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1309154695] [2023-11-30 10:12:45,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1309154695] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 10:12:45,811 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 10:12:45,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-30 10:12:45,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074481988] [2023-11-30 10:12:45,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 10:12:45,812 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-30 10:12:45,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 10:12:45,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-30 10:12:45,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-30 10:12:45,814 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 155 [2023-11-30 10:12:45,815 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 189 transitions, 1030 flow. Second operand has 6 states, 6 states have (on average 118.66666666666667) internal successors, (712), 6 states have internal predecessors, (712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 10:12:45,815 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 10:12:45,816 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 155 [2023-11-30 10:12:45,816 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 10:12:46,001 INFO L124 PetriNetUnfolderBase]: 163/729 cut-off events. [2023-11-30 10:12:46,001 INFO L125 PetriNetUnfolderBase]: For 1781/1983 co-relation queries the response was YES. [2023-11-30 10:12:46,003 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2227 conditions, 729 events. 163/729 cut-off events. For 1781/1983 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 3831 event pairs, 46 based on Foata normal form. 12/637 useless extension candidates. Maximal degree in co-relation 1862. Up to 202 conditions per place. [2023-11-30 10:12:46,006 INFO L140 encePairwiseOnDemand]: 144/155 looper letters, 80 selfloop transitions, 10 changer transitions 2/195 dead transitions. [2023-11-30 10:12:46,006 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 154 places, 195 transitions, 1248 flow [2023-11-30 10:12:46,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-30 10:12:46,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-11-30 10:12:46,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 990 transitions. [2023-11-30 10:12:46,009 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7983870967741935 [2023-11-30 10:12:46,009 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 990 transitions. [2023-11-30 10:12:46,009 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 990 transitions. [2023-11-30 10:12:46,009 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 10:12:46,009 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 990 transitions. [2023-11-30 10:12:46,011 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 123.75) internal successors, (990), 8 states have internal predecessors, (990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 10:12:46,015 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 155.0) internal successors, (1395), 9 states have internal predecessors, (1395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 10:12:46,015 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 155.0) internal successors, (1395), 9 states have internal predecessors, (1395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 10:12:46,018 INFO L307 CegarLoopForPetriNet]: 131 programPoint places, 23 predicate places. [2023-11-30 10:12:46,021 INFO L500 AbstractCegarLoop]: Abstraction has has 154 places, 195 transitions, 1248 flow [2023-11-30 10:12:46,021 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 118.66666666666667) internal successors, (712), 6 states have internal predecessors, (712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 10:12:46,021 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 10:12:46,021 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 10:12:46,022 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-30 10:12:46,023 INFO L425 AbstractCegarLoop]: === Iteration 6 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-30 10:12:46,023 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 10:12:46,023 INFO L85 PathProgramCache]: Analyzing trace with hash -530504143, now seen corresponding path program 1 times [2023-11-30 10:12:46,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 10:12:46,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [131879088] [2023-11-30 10:12:46,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 10:12:46,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 10:12:46,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 10:12:46,138 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 10:12:46,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 10:12:46,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [131879088] [2023-11-30 10:12:46,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [131879088] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 10:12:46,139 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 10:12:46,139 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-30 10:12:46,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702894793] [2023-11-30 10:12:46,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 10:12:46,140 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-30 10:12:46,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 10:12:46,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-30 10:12:46,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-30 10:12:46,143 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 155 [2023-11-30 10:12:46,143 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 154 places, 195 transitions, 1248 flow. Second operand has 6 states, 6 states have (on average 118.83333333333333) internal successors, (713), 6 states have internal predecessors, (713), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 10:12:46,143 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 10:12:46,143 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 155 [2023-11-30 10:12:46,144 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 10:12:46,338 INFO L124 PetriNetUnfolderBase]: 201/873 cut-off events. [2023-11-30 10:12:46,339 INFO L125 PetriNetUnfolderBase]: For 3044/3559 co-relation queries the response was YES. [2023-11-30 10:12:46,341 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3099 conditions, 873 events. 201/873 cut-off events. For 3044/3559 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 4556 event pairs, 60 based on Foata normal form. 21/762 useless extension candidates. Maximal degree in co-relation 2573. Up to 261 conditions per place. [2023-11-30 10:12:46,345 INFO L140 encePairwiseOnDemand]: 145/155 looper letters, 106 selfloop transitions, 13 changer transitions 2/224 dead transitions. [2023-11-30 10:12:46,345 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 161 places, 224 transitions, 1757 flow [2023-11-30 10:12:46,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-30 10:12:46,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-11-30 10:12:46,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 994 transitions. [2023-11-30 10:12:46,348 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8016129032258065 [2023-11-30 10:12:46,348 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 994 transitions. [2023-11-30 10:12:46,348 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 994 transitions. [2023-11-30 10:12:46,349 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 10:12:46,349 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 994 transitions. [2023-11-30 10:12:46,351 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 124.25) internal successors, (994), 8 states have internal predecessors, (994), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 10:12:46,353 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 155.0) internal successors, (1395), 9 states have internal predecessors, (1395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 10:12:46,353 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 155.0) internal successors, (1395), 9 states have internal predecessors, (1395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 10:12:46,356 INFO L307 CegarLoopForPetriNet]: 131 programPoint places, 30 predicate places. [2023-11-30 10:12:46,356 INFO L500 AbstractCegarLoop]: Abstraction has has 161 places, 224 transitions, 1757 flow [2023-11-30 10:12:46,356 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 118.83333333333333) internal successors, (713), 6 states have internal predecessors, (713), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 10:12:46,356 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 10:12:46,356 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 10:12:46,357 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-30 10:12:46,357 INFO L425 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-30 10:12:46,357 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 10:12:46,357 INFO L85 PathProgramCache]: Analyzing trace with hash 610688469, now seen corresponding path program 1 times [2023-11-30 10:12:46,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 10:12:46,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059928772] [2023-11-30 10:12:46,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 10:12:46,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 10:12:46,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 10:12:46,439 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 10:12:46,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 10:12:46,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2059928772] [2023-11-30 10:12:46,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2059928772] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 10:12:46,440 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 10:12:46,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-30 10:12:46,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996448031] [2023-11-30 10:12:46,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 10:12:46,441 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-30 10:12:46,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 10:12:46,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-30 10:12:46,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-30 10:12:46,442 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 155 [2023-11-30 10:12:46,443 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 161 places, 224 transitions, 1757 flow. Second operand has 4 states, 4 states have (on average 126.0) internal successors, (504), 4 states have internal predecessors, (504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 10:12:46,443 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 10:12:46,443 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 155 [2023-11-30 10:12:46,443 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 10:12:46,736 INFO L124 PetriNetUnfolderBase]: 466/1741 cut-off events. [2023-11-30 10:12:46,736 INFO L125 PetriNetUnfolderBase]: For 10388/11192 co-relation queries the response was YES. [2023-11-30 10:12:46,741 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7139 conditions, 1741 events. 466/1741 cut-off events. For 10388/11192 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 11808 event pairs, 137 based on Foata normal form. 13/1473 useless extension candidates. Maximal degree in co-relation 6272. Up to 642 conditions per place. [2023-11-30 10:12:46,751 INFO L140 encePairwiseOnDemand]: 148/155 looper letters, 131 selfloop transitions, 4 changer transitions 2/279 dead transitions. [2023-11-30 10:12:46,752 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 165 places, 279 transitions, 2750 flow [2023-11-30 10:12:46,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-30 10:12:46,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-30 10:12:46,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 668 transitions. [2023-11-30 10:12:46,754 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8619354838709677 [2023-11-30 10:12:46,754 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 668 transitions. [2023-11-30 10:12:46,754 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 668 transitions. [2023-11-30 10:12:46,755 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 10:12:46,755 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 668 transitions. [2023-11-30 10:12:46,756 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 133.6) internal successors, (668), 5 states have internal predecessors, (668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 10:12:46,757 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 155.0) internal successors, (930), 6 states have internal predecessors, (930), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 10:12:46,757 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 155.0) internal successors, (930), 6 states have internal predecessors, (930), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 10:12:46,758 INFO L307 CegarLoopForPetriNet]: 131 programPoint places, 34 predicate places. [2023-11-30 10:12:46,758 INFO L500 AbstractCegarLoop]: Abstraction has has 165 places, 279 transitions, 2750 flow [2023-11-30 10:12:46,758 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 126.0) internal successors, (504), 4 states have internal predecessors, (504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 10:12:46,758 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 10:12:46,759 INFO L232 CegarLoopForPetriNet]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:12:46,759 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-30 10:12:46,759 INFO L425 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-30 10:12:46,759 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 10:12:46,759 INFO L85 PathProgramCache]: Analyzing trace with hash -1362746448, now seen corresponding path program 1 times [2023-11-30 10:12:46,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 10:12:46,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1808701813] [2023-11-30 10:12:46,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 10:12:46,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 10:12:46,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 10:12:46,907 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 10:12:46,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 10:12:46,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1808701813] [2023-11-30 10:12:46,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1808701813] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-30 10:12:46,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1848784444] [2023-11-30 10:12:46,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 10:12:46,908 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 10:12:46,908 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 10:12:46,909 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 10:12:46,934 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 10:12:47,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 10:12:47,055 INFO L262 TraceCheckSpWp]: Trace formula consists of 271 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-30 10:12:47,058 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 10:12:47,122 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-30 10:12:47,122 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-30 10:12:47,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1848784444] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 10:12:47,123 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-30 10:12:47,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 7 [2023-11-30 10:12:47,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900158066] [2023-11-30 10:12:47,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 10:12:47,124 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-30 10:12:47,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 10:12:47,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-30 10:12:47,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-11-30 10:12:47,125 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 155 [2023-11-30 10:12:47,126 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 165 places, 279 transitions, 2750 flow. Second operand has 6 states, 6 states have (on average 119.5) internal successors, (717), 6 states have internal predecessors, (717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 10:12:47,126 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 10:12:47,126 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 155 [2023-11-30 10:12:47,127 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 10:12:47,489 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([402] L881-->L881-3: Formula: (and (= |v_thread1Thread1of1ForFork1_#t~nondet5_1| 0) (= |v_#pthreadsMutex_39| (store |v_#pthreadsMutex_40| |v_~#m~0.base_29| (store (select |v_#pthreadsMutex_40| |v_~#m~0.base_29|) |v_~#m~0.offset_29| 0)))) InVars {#pthreadsMutex=|v_#pthreadsMutex_40|, ~#m~0.base=|v_~#m~0.base_29|, ~#m~0.offset=|v_~#m~0.offset_29|} OutVars{#pthreadsMutex=|v_#pthreadsMutex_39|, ~#m~0.base=|v_~#m~0.base_29|, ~#m~0.offset=|v_~#m~0.offset_29|, thread1Thread1of1ForFork1_#t~nondet5=|v_thread1Thread1of1ForFork1_#t~nondet5_1|} AuxVars[] AssignedVars[#pthreadsMutex, thread1Thread1of1ForFork1_#t~nondet5][256], [154#true, 172#(<= 1 ~num~0), 161#true, 405#true, 447#(<= 1 ~num~0), 118#L914-4true, 422#true, 435#true, thread1Thread1of1ForFork1InUse, thread2Thread1of1ForFork0InUse, 128#L892-2true, 22#L881-3true, 413#(<= 1 ~num~0)]) [2023-11-30 10:12:47,489 INFO L294 olderBase$Statistics]: this new event has 139 ancestors and is cut-off event [2023-11-30 10:12:47,489 INFO L297 olderBase$Statistics]: existing Event has 117 ancestors and is cut-off event [2023-11-30 10:12:47,489 INFO L297 olderBase$Statistics]: existing Event has 134 ancestors and is cut-off event [2023-11-30 10:12:47,489 INFO L297 olderBase$Statistics]: existing Event has 122 ancestors and is cut-off event [2023-11-30 10:12:47,492 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([402] L881-->L881-3: Formula: (and (= |v_thread1Thread1of1ForFork1_#t~nondet5_1| 0) (= |v_#pthreadsMutex_39| (store |v_#pthreadsMutex_40| |v_~#m~0.base_29| (store (select |v_#pthreadsMutex_40| |v_~#m~0.base_29|) |v_~#m~0.offset_29| 0)))) InVars {#pthreadsMutex=|v_#pthreadsMutex_40|, ~#m~0.base=|v_~#m~0.base_29|, ~#m~0.offset=|v_~#m~0.offset_29|} OutVars{#pthreadsMutex=|v_#pthreadsMutex_39|, ~#m~0.base=|v_~#m~0.base_29|, ~#m~0.offset=|v_~#m~0.offset_29|, thread1Thread1of1ForFork1_#t~nondet5=|v_thread1Thread1of1ForFork1_#t~nondet5_1|} AuxVars[] AssignedVars[#pthreadsMutex, thread1Thread1of1ForFork1_#t~nondet5][256], [154#true, 161#true, 172#(<= 1 ~num~0), 405#true, 447#(<= 1 ~num~0), 118#L914-4true, 422#true, 65#L893true, 435#true, thread1Thread1of1ForFork1InUse, thread2Thread1of1ForFork0InUse, 22#L881-3true, 413#(<= 1 ~num~0)]) [2023-11-30 10:12:47,492 INFO L294 olderBase$Statistics]: this new event has 140 ancestors and is cut-off event [2023-11-30 10:12:47,492 INFO L297 olderBase$Statistics]: existing Event has 123 ancestors and is cut-off event [2023-11-30 10:12:47,493 INFO L297 olderBase$Statistics]: existing Event has 118 ancestors and is cut-off event [2023-11-30 10:12:47,493 INFO L297 olderBase$Statistics]: existing Event has 135 ancestors and is cut-off event [2023-11-30 10:12:47,494 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([402] L881-->L881-3: Formula: (and (= |v_thread1Thread1of1ForFork1_#t~nondet5_1| 0) (= |v_#pthreadsMutex_39| (store |v_#pthreadsMutex_40| |v_~#m~0.base_29| (store (select |v_#pthreadsMutex_40| |v_~#m~0.base_29|) |v_~#m~0.offset_29| 0)))) InVars {#pthreadsMutex=|v_#pthreadsMutex_40|, ~#m~0.base=|v_~#m~0.base_29|, ~#m~0.offset=|v_~#m~0.offset_29|} OutVars{#pthreadsMutex=|v_#pthreadsMutex_39|, ~#m~0.base=|v_~#m~0.base_29|, ~#m~0.offset=|v_~#m~0.offset_29|, thread1Thread1of1ForFork1_#t~nondet5=|v_thread1Thread1of1ForFork1_#t~nondet5_1|} AuxVars[] AssignedVars[#pthreadsMutex, thread1Thread1of1ForFork1_#t~nondet5][256], [154#true, 172#(<= 1 ~num~0), 161#true, 405#true, 447#(<= 1 ~num~0), 422#true, 118#L914-4true, 435#true, thread1Thread1of1ForFork1InUse, thread2Thread1of1ForFork0InUse, 103#L892-3true, 22#L881-3true, 413#(<= 1 ~num~0)]) [2023-11-30 10:12:47,494 INFO L294 olderBase$Statistics]: this new event has 140 ancestors and is cut-off event [2023-11-30 10:12:47,494 INFO L297 olderBase$Statistics]: existing Event has 118 ancestors and is cut-off event [2023-11-30 10:12:47,494 INFO L297 olderBase$Statistics]: existing Event has 123 ancestors and is cut-off event [2023-11-30 10:12:47,494 INFO L297 olderBase$Statistics]: existing Event has 135 ancestors and is cut-off event [2023-11-30 10:12:47,499 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([402] L881-->L881-3: Formula: (and (= |v_thread1Thread1of1ForFork1_#t~nondet5_1| 0) (= |v_#pthreadsMutex_39| (store |v_#pthreadsMutex_40| |v_~#m~0.base_29| (store (select |v_#pthreadsMutex_40| |v_~#m~0.base_29|) |v_~#m~0.offset_29| 0)))) InVars {#pthreadsMutex=|v_#pthreadsMutex_40|, ~#m~0.base=|v_~#m~0.base_29|, ~#m~0.offset=|v_~#m~0.offset_29|} OutVars{#pthreadsMutex=|v_#pthreadsMutex_39|, ~#m~0.base=|v_~#m~0.base_29|, ~#m~0.offset=|v_~#m~0.offset_29|, thread1Thread1of1ForFork1_#t~nondet5=|v_thread1Thread1of1ForFork1_#t~nondet5_1|} AuxVars[] AssignedVars[#pthreadsMutex, thread1Thread1of1ForFork1_#t~nondet5][256], [154#true, 161#true, 172#(<= 1 ~num~0), 405#true, 447#(<= 1 ~num~0), 422#true, 118#L914-4true, 435#true, thread1Thread1of1ForFork1InUse, thread2Thread1of1ForFork0InUse, 64#L903true, 22#L881-3true, 413#(<= 1 ~num~0)]) [2023-11-30 10:12:47,499 INFO L294 olderBase$Statistics]: this new event has 141 ancestors and is cut-off event [2023-11-30 10:12:47,499 INFO L297 olderBase$Statistics]: existing Event has 124 ancestors and is cut-off event [2023-11-30 10:12:47,499 INFO L297 olderBase$Statistics]: existing Event has 119 ancestors and is cut-off event [2023-11-30 10:12:47,499 INFO L297 olderBase$Statistics]: existing Event has 136 ancestors and is cut-off event [2023-11-30 10:12:47,510 INFO L124 PetriNetUnfolderBase]: 519/1880 cut-off events. [2023-11-30 10:12:47,510 INFO L125 PetriNetUnfolderBase]: For 15301/17083 co-relation queries the response was YES. [2023-11-30 10:12:47,515 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8612 conditions, 1880 events. 519/1880 cut-off events. For 15301/17083 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 13083 event pairs, 187 based on Foata normal form. 98/1681 useless extension candidates. Maximal degree in co-relation 8041. Up to 733 conditions per place. [2023-11-30 10:12:47,528 INFO L140 encePairwiseOnDemand]: 142/155 looper letters, 150 selfloop transitions, 23 changer transitions 2/285 dead transitions. [2023-11-30 10:12:47,528 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 169 places, 285 transitions, 3225 flow [2023-11-30 10:12:47,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-30 10:12:47,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-11-30 10:12:47,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 973 transitions. [2023-11-30 10:12:47,531 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7846774193548387 [2023-11-30 10:12:47,531 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 973 transitions. [2023-11-30 10:12:47,531 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 973 transitions. [2023-11-30 10:12:47,532 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 10:12:47,532 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 973 transitions. [2023-11-30 10:12:47,534 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 121.625) internal successors, (973), 8 states have internal predecessors, (973), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 10:12:47,536 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 155.0) internal successors, (1395), 9 states have internal predecessors, (1395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 10:12:47,537 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 155.0) internal successors, (1395), 9 states have internal predecessors, (1395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 10:12:47,539 INFO L307 CegarLoopForPetriNet]: 131 programPoint places, 38 predicate places. [2023-11-30 10:12:47,539 INFO L500 AbstractCegarLoop]: Abstraction has has 169 places, 285 transitions, 3225 flow [2023-11-30 10:12:47,539 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 119.5) internal successors, (717), 6 states have internal predecessors, (717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 10:12:47,539 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 10:12:47,539 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:12:47,548 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 10:12:47,745 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,SelfDestructingSolverStorable7 [2023-11-30 10:12:47,745 INFO L425 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-30 10:12:47,746 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 10:12:47,746 INFO L85 PathProgramCache]: Analyzing trace with hash -1156295407, now seen corresponding path program 1 times [2023-11-30 10:12:47,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 10:12:47,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004159946] [2023-11-30 10:12:47,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 10:12:47,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 10:12:47,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 10:12:47,804 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-30 10:12:47,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 10:12:47,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2004159946] [2023-11-30 10:12:47,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2004159946] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 10:12:47,805 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 10:12:47,805 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-30 10:12:47,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118048440] [2023-11-30 10:12:47,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 10:12:47,805 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-30 10:12:47,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 10:12:47,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-30 10:12:47,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-30 10:12:47,807 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 155 [2023-11-30 10:12:47,807 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 169 places, 285 transitions, 3225 flow. Second operand has 4 states, 4 states have (on average 126.25) internal successors, (505), 4 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 10:12:47,807 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 10:12:47,807 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 155 [2023-11-30 10:12:47,807 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 10:12:48,121 INFO L124 PetriNetUnfolderBase]: 531/2103 cut-off events. [2023-11-30 10:12:48,121 INFO L125 PetriNetUnfolderBase]: For 17901/18540 co-relation queries the response was YES. [2023-11-30 10:12:48,128 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9923 conditions, 2103 events. 531/2103 cut-off events. For 17901/18540 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 15463 event pairs, 195 based on Foata normal form. 41/1846 useless extension candidates. Maximal degree in co-relation 9420. Up to 799 conditions per place. [2023-11-30 10:12:48,141 INFO L140 encePairwiseOnDemand]: 148/155 looper letters, 147 selfloop transitions, 11 changer transitions 2/284 dead transitions. [2023-11-30 10:12:48,142 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 171 places, 284 transitions, 3533 flow [2023-11-30 10:12:48,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-30 10:12:48,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-30 10:12:48,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 640 transitions. [2023-11-30 10:12:48,144 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8258064516129032 [2023-11-30 10:12:48,144 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 640 transitions. [2023-11-30 10:12:48,144 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 640 transitions. [2023-11-30 10:12:48,144 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 10:12:48,144 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 640 transitions. [2023-11-30 10:12:48,145 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 128.0) internal successors, (640), 5 states have internal predecessors, (640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 10:12:48,147 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 155.0) internal successors, (930), 6 states have internal predecessors, (930), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 10:12:48,147 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 155.0) internal successors, (930), 6 states have internal predecessors, (930), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 10:12:48,147 INFO L307 CegarLoopForPetriNet]: 131 programPoint places, 40 predicate places. [2023-11-30 10:12:48,148 INFO L500 AbstractCegarLoop]: Abstraction has has 171 places, 284 transitions, 3533 flow [2023-11-30 10:12:48,148 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 126.25) internal successors, (505), 4 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 10:12:48,148 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 10:12:48,148 INFO L232 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 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 10:12:48,148 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-30 10:12:48,149 INFO L425 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-30 10:12:48,149 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 10:12:48,149 INFO L85 PathProgramCache]: Analyzing trace with hash 158689887, now seen corresponding path program 1 times [2023-11-30 10:12:48,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 10:12:48,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490803920] [2023-11-30 10:12:48,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 10:12:48,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 10:12:48,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 10:12:48,248 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 10:12:48,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 10:12:48,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1490803920] [2023-11-30 10:12:48,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1490803920] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-30 10:12:48,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1775348750] [2023-11-30 10:12:48,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 10:12:48,249 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 10:12:48,249 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 10:12:48,250 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 10:12:48,268 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 10:12:48,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 10:12:48,359 INFO L262 TraceCheckSpWp]: Trace formula consists of 285 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-30 10:12:48,362 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 10:12:48,404 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 10:12:48,405 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-30 10:12:48,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1775348750] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 10:12:48,405 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-30 10:12:48,405 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2023-11-30 10:12:48,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546387934] [2023-11-30 10:12:48,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 10:12:48,406 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-30 10:12:48,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 10:12:48,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-30 10:12:48,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-11-30 10:12:48,407 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 155 [2023-11-30 10:12:48,408 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 171 places, 284 transitions, 3533 flow. Second operand has 5 states, 5 states have (on average 128.8) internal successors, (644), 5 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 10:12:48,408 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 10:12:48,408 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 155 [2023-11-30 10:12:48,408 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 10:12:48,781 INFO L124 PetriNetUnfolderBase]: 509/1848 cut-off events. [2023-11-30 10:12:48,781 INFO L125 PetriNetUnfolderBase]: For 25576/26952 co-relation queries the response was YES. [2023-11-30 10:12:48,787 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9784 conditions, 1848 events. 509/1848 cut-off events. For 25576/26952 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 12724 event pairs, 164 based on Foata normal form. 29/1615 useless extension candidates. Maximal degree in co-relation 9110. Up to 703 conditions per place. [2023-11-30 10:12:48,797 INFO L140 encePairwiseOnDemand]: 151/155 looper letters, 141 selfloop transitions, 5 changer transitions 2/291 dead transitions. [2023-11-30 10:12:48,798 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 173 places, 291 transitions, 3985 flow [2023-11-30 10:12:48,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-30 10:12:48,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-30 10:12:48,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 531 transitions. [2023-11-30 10:12:48,799 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8564516129032258 [2023-11-30 10:12:48,799 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 531 transitions. [2023-11-30 10:12:48,799 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 531 transitions. [2023-11-30 10:12:48,800 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 10:12:48,800 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 531 transitions. [2023-11-30 10:12:48,801 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 132.75) internal successors, (531), 4 states have internal predecessors, (531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 10:12:48,802 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 155.0) internal successors, (775), 5 states have internal predecessors, (775), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 10:12:48,802 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 155.0) internal successors, (775), 5 states have internal predecessors, (775), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 10:12:48,803 INFO L307 CegarLoopForPetriNet]: 131 programPoint places, 42 predicate places. [2023-11-30 10:12:48,803 INFO L500 AbstractCegarLoop]: Abstraction has has 173 places, 291 transitions, 3985 flow [2023-11-30 10:12:48,803 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 128.8) internal successors, (644), 5 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 10:12:48,803 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 10:12:48,803 INFO L232 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 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 10:12:48,812 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 10:12:49,009 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 10:12:49,009 INFO L425 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-30 10:12:49,010 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 10:12:49,010 INFO L85 PathProgramCache]: Analyzing trace with hash -352790784, now seen corresponding path program 1 times [2023-11-30 10:12:49,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 10:12:49,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319179566] [2023-11-30 10:12:49,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 10:12:49,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 10:12:49,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 10:12:49,077 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-30 10:12:49,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 10:12:49,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1319179566] [2023-11-30 10:12:49,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1319179566] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 10:12:49,078 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 10:12:49,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-30 10:12:49,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569909192] [2023-11-30 10:12:49,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 10:12:49,078 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-30 10:12:49,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 10:12:49,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-30 10:12:49,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-30 10:12:49,079 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 155 [2023-11-30 10:12:49,080 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 173 places, 291 transitions, 3985 flow. Second operand has 4 states, 4 states have (on average 130.0) internal successors, (520), 4 states have internal predecessors, (520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 10:12:49,080 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 10:12:49,080 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 155 [2023-11-30 10:12:49,080 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 10:12:49,359 INFO L124 PetriNetUnfolderBase]: 476/1754 cut-off events. [2023-11-30 10:12:49,360 INFO L125 PetriNetUnfolderBase]: For 24551/26101 co-relation queries the response was YES. [2023-11-30 10:12:49,365 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9768 conditions, 1754 events. 476/1754 cut-off events. For 24551/26101 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 12005 event pairs, 139 based on Foata normal form. 77/1612 useless extension candidates. Maximal degree in co-relation 8517. Up to 657 conditions per place. [2023-11-30 10:12:49,375 INFO L140 encePairwiseOnDemand]: 149/155 looper letters, 157 selfloop transitions, 8 changer transitions 2/310 dead transitions. [2023-11-30 10:12:49,376 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 176 places, 310 transitions, 4756 flow [2023-11-30 10:12:49,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-30 10:12:49,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-30 10:12:49,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 662 transitions. [2023-11-30 10:12:49,378 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8541935483870968 [2023-11-30 10:12:49,378 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 662 transitions. [2023-11-30 10:12:49,378 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 662 transitions. [2023-11-30 10:12:49,378 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 10:12:49,378 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 662 transitions. [2023-11-30 10:12:49,380 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 132.4) internal successors, (662), 5 states have internal predecessors, (662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 10:12:49,381 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 155.0) internal successors, (930), 6 states have internal predecessors, (930), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 10:12:49,381 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 155.0) internal successors, (930), 6 states have internal predecessors, (930), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 10:12:49,382 INFO L307 CegarLoopForPetriNet]: 131 programPoint places, 45 predicate places. [2023-11-30 10:12:49,382 INFO L500 AbstractCegarLoop]: Abstraction has has 176 places, 310 transitions, 4756 flow [2023-11-30 10:12:49,382 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 130.0) internal successors, (520), 4 states have internal predecessors, (520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 10:12:49,382 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 10:12:49,382 INFO L232 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 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 10:12:49,382 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-30 10:12:49,383 INFO L425 AbstractCegarLoop]: === Iteration 12 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-30 10:12:49,383 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 10:12:49,383 INFO L85 PathProgramCache]: Analyzing trace with hash -1369733375, now seen corresponding path program 1 times [2023-11-30 10:12:49,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 10:12:49,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160383687] [2023-11-30 10:12:49,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 10:12:49,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 10:12:49,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 10:12:49,477 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 10:12:49,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 10:12:49,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [160383687] [2023-11-30 10:12:49,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [160383687] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-30 10:12:49,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2060574155] [2023-11-30 10:12:49,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 10:12:49,478 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 10:12:49,478 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 10:12:49,479 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 10:12:49,482 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 10:12:49,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 10:12:49,596 INFO L262 TraceCheckSpWp]: Trace formula consists of 287 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-30 10:12:49,598 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 10:12:49,647 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 10:12:49,648 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-30 10:12:49,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2060574155] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 10:12:49,648 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-30 10:12:49,648 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2023-11-30 10:12:49,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880377801] [2023-11-30 10:12:49,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 10:12:49,649 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-30 10:12:49,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 10:12:49,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-30 10:12:49,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-30 10:12:49,650 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 155 [2023-11-30 10:12:49,651 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 176 places, 310 transitions, 4756 flow. Second operand has 6 states, 6 states have (on average 126.5) internal successors, (759), 6 states have internal predecessors, (759), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 10:12:49,651 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 10:12:49,651 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 155 [2023-11-30 10:12:49,651 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 10:12:50,106 INFO L124 PetriNetUnfolderBase]: 445/1565 cut-off events. [2023-11-30 10:12:50,106 INFO L125 PetriNetUnfolderBase]: For 28240/30244 co-relation queries the response was YES. [2023-11-30 10:12:50,110 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9828 conditions, 1565 events. 445/1565 cut-off events. For 28240/30244 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 10331 event pairs, 64 based on Foata normal form. 64/1454 useless extension candidates. Maximal degree in co-relation 9215. Up to 606 conditions per place. [2023-11-30 10:12:50,120 INFO L140 encePairwiseOnDemand]: 150/155 looper letters, 180 selfloop transitions, 6 changer transitions 2/326 dead transitions. [2023-11-30 10:12:50,120 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 181 places, 326 transitions, 5548 flow [2023-11-30 10:12:50,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-30 10:12:50,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-30 10:12:50,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 921 transitions. [2023-11-30 10:12:50,122 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8488479262672811 [2023-11-30 10:12:50,123 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 921 transitions. [2023-11-30 10:12:50,123 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 921 transitions. [2023-11-30 10:12:50,123 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 10:12:50,123 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 921 transitions. [2023-11-30 10:12:50,125 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 131.57142857142858) internal successors, (921), 7 states have internal predecessors, (921), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 10:12:50,127 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 155.0) internal successors, (1240), 8 states have internal predecessors, (1240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 10:12:50,127 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 155.0) internal successors, (1240), 8 states have internal predecessors, (1240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 10:12:50,127 INFO L307 CegarLoopForPetriNet]: 131 programPoint places, 50 predicate places. [2023-11-30 10:12:50,128 INFO L500 AbstractCegarLoop]: Abstraction has has 181 places, 326 transitions, 5548 flow [2023-11-30 10:12:50,128 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 126.5) internal successors, (759), 6 states have internal predecessors, (759), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 10:12:50,128 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 10:12:50,128 INFO L232 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 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 10:12:50,136 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 10:12:50,336 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 10:12:50,337 INFO L425 AbstractCegarLoop]: === Iteration 13 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-30 10:12:50,337 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 10:12:50,337 INFO L85 PathProgramCache]: Analyzing trace with hash 35336452, now seen corresponding path program 1 times [2023-11-30 10:12:50,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 10:12:50,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008521873] [2023-11-30 10:12:50,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 10:12:50,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 10:12:50,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 10:12:50,405 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-30 10:12:50,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 10:12:50,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2008521873] [2023-11-30 10:12:50,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2008521873] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 10:12:50,405 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 10:12:50,405 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-30 10:12:50,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919432210] [2023-11-30 10:12:50,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 10:12:50,406 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-30 10:12:50,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 10:12:50,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-30 10:12:50,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-30 10:12:50,407 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 155 [2023-11-30 10:12:50,408 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 181 places, 326 transitions, 5548 flow. Second operand has 4 states, 4 states have (on average 128.5) internal successors, (514), 4 states have internal predecessors, (514), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 10:12:50,408 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 10:12:50,408 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 155 [2023-11-30 10:12:50,408 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 10:12:50,691 INFO L124 PetriNetUnfolderBase]: 423/1462 cut-off events. [2023-11-30 10:12:50,691 INFO L125 PetriNetUnfolderBase]: For 31209/33512 co-relation queries the response was YES. [2023-11-30 10:12:50,696 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10058 conditions, 1462 events. 423/1462 cut-off events. For 31209/33512 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 9381 event pairs, 45 based on Foata normal form. 86/1408 useless extension candidates. Maximal degree in co-relation 8659. Up to 557 conditions per place. [2023-11-30 10:12:50,705 INFO L140 encePairwiseOnDemand]: 149/155 looper letters, 184 selfloop transitions, 8 changer transitions 21/351 dead transitions. [2023-11-30 10:12:50,705 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 184 places, 351 transitions, 6662 flow [2023-11-30 10:12:50,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-30 10:12:50,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-30 10:12:50,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 654 transitions. [2023-11-30 10:12:50,707 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8438709677419355 [2023-11-30 10:12:50,707 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 654 transitions. [2023-11-30 10:12:50,707 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 654 transitions. [2023-11-30 10:12:50,707 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 10:12:50,707 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 654 transitions. [2023-11-30 10:12:50,709 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 130.8) internal successors, (654), 5 states have internal predecessors, (654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 10:12:50,710 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 155.0) internal successors, (930), 6 states have internal predecessors, (930), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 10:12:50,711 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 155.0) internal successors, (930), 6 states have internal predecessors, (930), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 10:12:50,712 INFO L307 CegarLoopForPetriNet]: 131 programPoint places, 53 predicate places. [2023-11-30 10:12:50,712 INFO L500 AbstractCegarLoop]: Abstraction has has 184 places, 351 transitions, 6662 flow [2023-11-30 10:12:50,712 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 128.5) internal successors, (514), 4 states have internal predecessors, (514), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 10:12:50,712 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 10:12:50,712 INFO L232 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 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 10:12:50,713 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-30 10:12:50,713 INFO L425 AbstractCegarLoop]: === Iteration 14 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-30 10:12:50,714 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 10:12:50,714 INFO L85 PathProgramCache]: Analyzing trace with hash -1565717707, now seen corresponding path program 1 times [2023-11-30 10:12:50,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 10:12:50,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955079438] [2023-11-30 10:12:50,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 10:12:50,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 10:12:50,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 10:12:50,798 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-30 10:12:50,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 10:12:50,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1955079438] [2023-11-30 10:12:50,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1955079438] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 10:12:50,798 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 10:12:50,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-30 10:12:50,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219924575] [2023-11-30 10:12:50,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 10:12:50,799 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-30 10:12:50,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 10:12:50,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-30 10:12:50,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-30 10:12:50,800 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 155 [2023-11-30 10:12:50,801 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 184 places, 351 transitions, 6662 flow. Second operand has 6 states, 6 states have (on average 121.33333333333333) internal successors, (728), 6 states have internal predecessors, (728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 10:12:50,801 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 10:12:50,801 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 155 [2023-11-30 10:12:50,801 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 10:12:51,094 INFO L124 PetriNetUnfolderBase]: 392/1416 cut-off events. [2023-11-30 10:12:51,095 INFO L125 PetriNetUnfolderBase]: For 31681/33637 co-relation queries the response was YES. [2023-11-30 10:12:51,099 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10232 conditions, 1416 events. 392/1416 cut-off events. For 31681/33637 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 9115 event pairs, 56 based on Foata normal form. 29/1320 useless extension candidates. Maximal degree in co-relation 8769. Up to 523 conditions per place. [2023-11-30 10:12:51,103 INFO L140 encePairwiseOnDemand]: 146/155 looper letters, 0 selfloop transitions, 0 changer transitions 341/341 dead transitions. [2023-11-30 10:12:51,103 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 190 places, 341 transitions, 6855 flow [2023-11-30 10:12:51,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-30 10:12:51,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-11-30 10:12:51,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 973 transitions. [2023-11-30 10:12:51,105 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7846774193548387 [2023-11-30 10:12:51,105 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 973 transitions. [2023-11-30 10:12:51,105 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 973 transitions. [2023-11-30 10:12:51,106 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 10:12:51,106 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 973 transitions. [2023-11-30 10:12:51,108 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 121.625) internal successors, (973), 8 states have internal predecessors, (973), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 10:12:51,110 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 155.0) internal successors, (1395), 9 states have internal predecessors, (1395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 10:12:51,110 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 155.0) internal successors, (1395), 9 states have internal predecessors, (1395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 10:12:51,110 INFO L307 CegarLoopForPetriNet]: 131 programPoint places, 59 predicate places. [2023-11-30 10:12:51,111 INFO L500 AbstractCegarLoop]: Abstraction has has 190 places, 341 transitions, 6855 flow [2023-11-30 10:12:51,111 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 121.33333333333333) internal successors, (728), 6 states have internal predecessors, (728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 10:12:51,116 INFO L143 wickiGriesTestDumper]: Dumping Owicki-Gries test to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/arithmetic_prog_ok.i_BEv2_AllErrorsAtOnce [2023-11-30 10:12:51,164 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 18 remaining) [2023-11-30 10:12:51,165 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 18 remaining) [2023-11-30 10:12:51,166 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 18 remaining) [2023-11-30 10:12:51,166 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 18 remaining) [2023-11-30 10:12:51,166 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 18 remaining) [2023-11-30 10:12:51,166 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 18 remaining) [2023-11-30 10:12:51,166 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 18 remaining) [2023-11-30 10:12:51,166 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 18 remaining) [2023-11-30 10:12:51,166 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 18 remaining) [2023-11-30 10:12:51,166 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 18 remaining) [2023-11-30 10:12:51,166 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 18 remaining) [2023-11-30 10:12:51,167 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 18 remaining) [2023-11-30 10:12:51,167 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 18 remaining) [2023-11-30 10:12:51,167 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 18 remaining) [2023-11-30 10:12:51,167 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 18 remaining) [2023-11-30 10:12:51,167 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 18 remaining) [2023-11-30 10:12:51,167 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 18 remaining) [2023-11-30 10:12:51,167 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 18 remaining) [2023-11-30 10:12:51,167 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-30 10:12:51,168 INFO L457 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 10:12:51,172 INFO L222 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-30 10:12:51,172 INFO L172 ceAbstractionStarter]: Computing trace abstraction results [2023-11-30 10:12:51,178 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 10:12:51 BasicIcfg [2023-11-30 10:12:51,178 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-30 10:12:51,179 INFO L158 Benchmark]: Toolchain (without parser) took 9274.17ms. Allocated memory was 555.7MB in the beginning and 708.8MB in the end (delta: 153.1MB). Free memory was 502.5MB in the beginning and 331.9MB in the end (delta: 170.7MB). Peak memory consumption was 325.9MB. Max. memory is 16.0GB. [2023-11-30 10:12:51,179 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 369.1MB. Free memory is still 318.0MB. There was no memory consumed. Max. memory is 16.0GB. [2023-11-30 10:12:51,179 INFO L158 Benchmark]: CACSL2BoogieTranslator took 518.21ms. Allocated memory is still 555.7MB. Free memory was 502.2MB in the beginning and 475.4MB in the end (delta: 26.8MB). Peak memory consumption was 27.3MB. Max. memory is 16.0GB. [2023-11-30 10:12:51,179 INFO L158 Benchmark]: Boogie Procedure Inliner took 67.25ms. Allocated memory is still 555.7MB. Free memory was 475.4MB in the beginning and 473.2MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-11-30 10:12:51,179 INFO L158 Benchmark]: Boogie Preprocessor took 46.15ms. Allocated memory is still 555.7MB. Free memory was 472.9MB in the beginning and 471.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-11-30 10:12:51,180 INFO L158 Benchmark]: RCFGBuilder took 504.06ms. Allocated memory is still 555.7MB. Free memory was 471.2MB in the beginning and 511.3MB in the end (delta: -40.1MB). Peak memory consumption was 16.4MB. Max. memory is 16.0GB. [2023-11-30 10:12:51,180 INFO L158 Benchmark]: TraceAbstraction took 8123.33ms. Allocated memory was 555.7MB in the beginning and 708.8MB in the end (delta: 153.1MB). Free memory was 510.3MB in the beginning and 331.9MB in the end (delta: 178.4MB). Peak memory consumption was 332.6MB. Max. memory is 16.0GB. [2023-11-30 10:12:51,181 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 369.1MB. Free memory is still 318.0MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 518.21ms. Allocated memory is still 555.7MB. Free memory was 502.2MB in the beginning and 475.4MB in the end (delta: 26.8MB). Peak memory consumption was 27.3MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 67.25ms. Allocated memory is still 555.7MB. Free memory was 475.4MB in the beginning and 473.2MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 46.15ms. Allocated memory is still 555.7MB. Free memory was 472.9MB in the beginning and 471.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 504.06ms. Allocated memory is still 555.7MB. Free memory was 471.2MB in the beginning and 511.3MB in the end (delta: -40.1MB). Peak memory consumption was 16.4MB. Max. memory is 16.0GB. * TraceAbstraction took 8123.33ms. Allocated memory was 555.7MB in the beginning and 708.8MB in the end (delta: 153.1MB). Free memory was 510.3MB in the beginning and 331.9MB in the end (delta: 178.4MB). Peak memory consumption was 332.6MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 882]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 882]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 885]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 885]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 897]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 897]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 900]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 900]: 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, 210 locations, 18 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: 8.0s, OverallIterations: 14, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 4.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 407 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 407 mSDsluCounter, 212 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 123 mSDsCounter, 50 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1206 IncrementalHoareTripleChecker+Invalid, 1256 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 50 mSolverCounterUnsat, 89 mSDtfsCounter, 1206 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 468 GetRequests, 393 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6855occurred in iteration=14, InterpolantAutomatonStates: 83, 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, 1.6s InterpolantComputationTime, 1631 NumberOfCodeBlocks, 1631 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 1613 ConstructedInterpolants, 0 QuantifiedInterpolants, 2551 SizeOfPredicates, 12 NumberOfNonLiveVariables, 1053 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 18 InterpolantComputations, 14 PerfectInterpolantSequences, 95/132 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 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-30 10:12:51,199 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...