/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/goblint-regression/13-privatized_24-multiple-protecting_true.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.empire-owicki-175f719-m [2023-11-30 07:37:18,076 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-30 07:37:18,137 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 07:37:18,165 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-30 07:37:18,166 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-30 07:37:18,166 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-30 07:37:18,167 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-30 07:37:18,167 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-30 07:37:18,167 INFO L153 SettingsManager]: * Use SBE=true [2023-11-30 07:37:18,170 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-30 07:37:18,170 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-30 07:37:18,170 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-30 07:37:18,170 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-30 07:37:18,171 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-30 07:37:18,171 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-30 07:37:18,171 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-30 07:37:18,172 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-30 07:37:18,172 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-30 07:37:18,172 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-30 07:37:18,172 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-30 07:37:18,172 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-30 07:37:18,173 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-30 07:37:18,173 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-30 07:37:18,173 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-11-30 07:37:18,173 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-30 07:37:18,174 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-30 07:37:18,174 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-30 07:37:18,174 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-30 07:37:18,175 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-30 07:37:18,175 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-30 07:37:18,175 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-30 07:37:18,175 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-30 07:37:18,176 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-30 07:37:18,176 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2023-11-30 07:37:18,372 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-30 07:37:18,390 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-30 07:37:18,392 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-30 07:37:18,393 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-30 07:37:18,393 INFO L274 PluginConnector]: CDTParser initialized [2023-11-30 07:37:18,395 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_24-multiple-protecting_true.i [2023-11-30 07:37:19,350 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-30 07:37:19,547 INFO L384 CDTParser]: Found 1 translation units. [2023-11-30 07:37:19,547 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_24-multiple-protecting_true.i [2023-11-30 07:37:19,559 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0b8242753/83e25d7883914bcdbe282081f7d9a87c/FLAG0ba91d46a [2023-11-30 07:37:19,576 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0b8242753/83e25d7883914bcdbe282081f7d9a87c [2023-11-30 07:37:19,578 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-30 07:37:19,580 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-11-30 07:37:19,582 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-30 07:37:19,582 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-30 07:37:19,585 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-30 07:37:19,586 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 07:37:19" (1/1) ... [2023-11-30 07:37:19,587 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4121cf4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:37:19, skipping insertion in model container [2023-11-30 07:37:19,588 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 07:37:19" (1/1) ... [2023-11-30 07:37:19,630 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-30 07:37:19,848 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-30 07:37:19,861 INFO L202 MainTranslator]: Completed pre-run [2023-11-30 07:37:19,903 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-30 07:37:19,932 INFO L206 MainTranslator]: Completed translation [2023-11-30 07:37:19,932 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:37:19 WrapperNode [2023-11-30 07:37:19,932 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-30 07:37:19,934 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-30 07:37:19,934 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-30 07:37:19,934 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-30 07:37:19,938 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:37:19" (1/1) ... [2023-11-30 07:37:19,959 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:37:19" (1/1) ... [2023-11-30 07:37:19,983 INFO L138 Inliner]: procedures = 163, calls = 59, calls flagged for inlining = 7, calls inlined = 10, statements flattened = 119 [2023-11-30 07:37:19,983 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-30 07:37:19,984 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-30 07:37:19,984 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-30 07:37:19,984 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-30 07:37:19,990 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:37:19" (1/1) ... [2023-11-30 07:37:19,990 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:37:19" (1/1) ... [2023-11-30 07:37:20,007 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:37:19" (1/1) ... [2023-11-30 07:37:20,007 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:37:19" (1/1) ... [2023-11-30 07:37:20,010 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:37:19" (1/1) ... [2023-11-30 07:37:20,012 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:37:19" (1/1) ... [2023-11-30 07:37:20,013 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:37:19" (1/1) ... [2023-11-30 07:37:20,013 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:37:19" (1/1) ... [2023-11-30 07:37:20,015 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-30 07:37:20,026 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-30 07:37:20,026 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-30 07:37:20,026 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-30 07:37:20,027 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:37:19" (1/1) ... [2023-11-30 07:37:20,030 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-30 07:37:20,038 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 07:37:20,048 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 07:37:20,078 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 07:37:20,086 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-30 07:37:20,087 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-30 07:37:20,087 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-30 07:37:20,087 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-30 07:37:20,087 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-30 07:37:20,087 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-11-30 07:37:20,087 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-11-30 07:37:20,088 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-30 07:37:20,088 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-30 07:37:20,088 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-30 07:37:20,088 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-30 07:37:20,088 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-30 07:37:20,089 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 07:37:20,196 INFO L241 CfgBuilder]: Building ICFG [2023-11-30 07:37:20,197 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-30 07:37:20,501 INFO L282 CfgBuilder]: Performing block encoding [2023-11-30 07:37:20,543 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-30 07:37:20,543 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-30 07:37:20,544 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 07:37:20 BoogieIcfgContainer [2023-11-30 07:37:20,545 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-30 07:37:20,546 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-30 07:37:20,546 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-30 07:37:20,548 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-30 07:37:20,548 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 07:37:19" (1/3) ... [2023-11-30 07:37:20,549 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@142a4a57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 07:37:20, skipping insertion in model container [2023-11-30 07:37:20,549 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:37:19" (2/3) ... [2023-11-30 07:37:20,549 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@142a4a57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 07:37:20, skipping insertion in model container [2023-11-30 07:37:20,549 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 07:37:20" (3/3) ... [2023-11-30 07:37:20,550 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_24-multiple-protecting_true.i [2023-11-30 07:37:20,561 INFO L197 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-30 07:37:20,561 INFO L156 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-11-30 07:37:20,561 INFO L508 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-30 07:37:20,602 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-11-30 07:37:20,632 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 179 places, 183 transitions, 373 flow [2023-11-30 07:37:20,692 INFO L124 PetriNetUnfolderBase]: 8/182 cut-off events. [2023-11-30 07:37:20,692 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-30 07:37:20,698 INFO L83 FinitePrefix]: Finished finitePrefix Result has 187 conditions, 182 events. 8/182 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 232 event pairs, 0 based on Foata normal form. 0/166 useless extension candidates. Maximal degree in co-relation 138. Up to 2 conditions per place. [2023-11-30 07:37:20,699 INFO L82 GeneralOperation]: Start removeDead. Operand has 179 places, 183 transitions, 373 flow [2023-11-30 07:37:20,704 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 170 places, 174 transitions, 351 flow [2023-11-30 07:37:20,714 INFO L361 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-30 07:37:20,719 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;@18ce69d6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-30 07:37:20,719 INFO L363 AbstractCegarLoop]: Starting to check reachability of 17 error locations. [2023-11-30 07:37:20,736 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-30 07:37:20,736 INFO L124 PetriNetUnfolderBase]: 0/49 cut-off events. [2023-11-30 07:37:20,736 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-30 07:37:20,736 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:37:20,737 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] [2023-11-30 07:37:20,737 INFO L425 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2023-11-30 07:37:20,742 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:37:20,743 INFO L85 PathProgramCache]: Analyzing trace with hash 1849927230, now seen corresponding path program 1 times [2023-11-30 07:37:20,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:37:20,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1746623923] [2023-11-30 07:37:20,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:37:20,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:37:20,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:37:21,031 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 07:37:21,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 07:37:21,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1746623923] [2023-11-30 07:37:21,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1746623923] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 07:37:21,033 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 07:37:21,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-30 07:37:21,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686608417] [2023-11-30 07:37:21,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 07:37:21,040 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-30 07:37:21,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 07:37:21,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-30 07:37:21,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-30 07:37:21,062 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 183 [2023-11-30 07:37:21,065 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 170 places, 174 transitions, 351 flow. Second operand has 4 states, 4 states have (on average 133.5) internal successors, (534), 4 states have internal predecessors, (534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:37:21,066 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 07:37:21,066 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 183 [2023-11-30 07:37:21,067 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 07:37:21,367 INFO L124 PetriNetUnfolderBase]: 285/1237 cut-off events. [2023-11-30 07:37:21,367 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-30 07:37:21,373 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1848 conditions, 1237 events. 285/1237 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 7954 event pairs, 66 based on Foata normal form. 138/1256 useless extension candidates. Maximal degree in co-relation 1805. Up to 404 conditions per place. [2023-11-30 07:37:21,379 INFO L140 encePairwiseOnDemand]: 169/183 looper letters, 75 selfloop transitions, 4 changer transitions 6/197 dead transitions. [2023-11-30 07:37:21,380 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 160 places, 197 transitions, 559 flow [2023-11-30 07:37:21,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-30 07:37:21,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-30 07:37:21,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 775 transitions. [2023-11-30 07:37:21,394 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8469945355191257 [2023-11-30 07:37:21,394 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 775 transitions. [2023-11-30 07:37:21,395 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 775 transitions. [2023-11-30 07:37:21,397 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 07:37:21,399 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 775 transitions. [2023-11-30 07:37:21,403 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 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 07:37:21,407 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 183.0) internal successors, (1098), 6 states have internal predecessors, (1098), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:37:21,408 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 183.0) internal successors, (1098), 6 states have internal predecessors, (1098), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:37:21,411 INFO L307 CegarLoopForPetriNet]: 170 programPoint places, -10 predicate places. [2023-11-30 07:37:21,412 INFO L500 AbstractCegarLoop]: Abstraction has has 160 places, 197 transitions, 559 flow [2023-11-30 07:37:21,412 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 133.5) internal successors, (534), 4 states have internal predecessors, (534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:37:21,412 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:37:21,412 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 07:37:21,413 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-30 07:37:21,413 INFO L425 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2023-11-30 07:37:21,413 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:37:21,413 INFO L85 PathProgramCache]: Analyzing trace with hash 570662304, now seen corresponding path program 1 times [2023-11-30 07:37:21,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:37:21,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768891989] [2023-11-30 07:37:21,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:37:21,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:37:21,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:37:21,635 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 07:37:21,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 07:37:21,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1768891989] [2023-11-30 07:37:21,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1768891989] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 07:37:21,636 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 07:37:21,636 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-30 07:37:21,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887025380] [2023-11-30 07:37:21,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 07:37:21,637 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-30 07:37:21,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 07:37:21,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-30 07:37:21,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-30 07:37:21,638 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 183 [2023-11-30 07:37:21,639 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 160 places, 197 transitions, 559 flow. Second operand has 6 states, 6 states have (on average 129.16666666666666) internal successors, (775), 6 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 07:37:21,639 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 07:37:21,639 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 183 [2023-11-30 07:37:21,639 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 07:37:21,965 INFO L124 PetriNetUnfolderBase]: 345/1261 cut-off events. [2023-11-30 07:37:21,966 INFO L125 PetriNetUnfolderBase]: For 267/307 co-relation queries the response was YES. [2023-11-30 07:37:21,967 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2663 conditions, 1261 events. 345/1261 cut-off events. For 267/307 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 8118 event pairs, 30 based on Foata normal form. 2/1169 useless extension candidates. Maximal degree in co-relation 2617. Up to 464 conditions per place. [2023-11-30 07:37:21,971 INFO L140 encePairwiseOnDemand]: 175/183 looper letters, 121 selfloop transitions, 7 changer transitions 6/241 dead transitions. [2023-11-30 07:37:21,971 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 166 places, 241 transitions, 997 flow [2023-11-30 07:37:21,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-30 07:37:21,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-11-30 07:37:21,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1147 transitions. [2023-11-30 07:37:21,973 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7834699453551912 [2023-11-30 07:37:21,973 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1147 transitions. [2023-11-30 07:37:21,973 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1147 transitions. [2023-11-30 07:37:21,974 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 07:37:21,974 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1147 transitions. [2023-11-30 07:37:21,976 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 143.375) internal successors, (1147), 8 states have internal predecessors, (1147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:37:21,978 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 183.0) internal successors, (1647), 9 states have internal predecessors, (1647), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:37:21,979 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 183.0) internal successors, (1647), 9 states have internal predecessors, (1647), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:37:21,979 INFO L307 CegarLoopForPetriNet]: 170 programPoint places, -4 predicate places. [2023-11-30 07:37:21,979 INFO L500 AbstractCegarLoop]: Abstraction has has 166 places, 241 transitions, 997 flow [2023-11-30 07:37:21,980 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 129.16666666666666) internal successors, (775), 6 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 07:37:21,980 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:37:21,980 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 07:37:21,980 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-30 07:37:21,981 INFO L425 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2023-11-30 07:37:21,982 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:37:21,982 INFO L85 PathProgramCache]: Analyzing trace with hash 510662788, now seen corresponding path program 1 times [2023-11-30 07:37:21,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:37:21,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [133644160] [2023-11-30 07:37:21,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:37:21,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:37:22,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:37:22,113 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 07:37:22,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 07:37:22,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [133644160] [2023-11-30 07:37:22,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [133644160] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 07:37:22,114 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 07:37:22,114 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-30 07:37:22,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537322455] [2023-11-30 07:37:22,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 07:37:22,115 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-30 07:37:22,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 07:37:22,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-30 07:37:22,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-30 07:37:22,116 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 183 [2023-11-30 07:37:22,117 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 166 places, 241 transitions, 997 flow. Second operand has 6 states, 6 states have (on average 129.33333333333334) internal successors, (776), 6 states have internal predecessors, (776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:37:22,117 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 07:37:22,117 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 183 [2023-11-30 07:37:22,117 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 07:37:22,358 INFO L124 PetriNetUnfolderBase]: 330/1247 cut-off events. [2023-11-30 07:37:22,359 INFO L125 PetriNetUnfolderBase]: For 711/835 co-relation queries the response was YES. [2023-11-30 07:37:22,361 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3303 conditions, 1247 events. 330/1247 cut-off events. For 711/835 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 7942 event pairs, 42 based on Foata normal form. 10/1171 useless extension candidates. Maximal degree in co-relation 3254. Up to 449 conditions per place. [2023-11-30 07:37:22,366 INFO L140 encePairwiseOnDemand]: 176/183 looper letters, 121 selfloop transitions, 6 changer transitions 6/240 dead transitions. [2023-11-30 07:37:22,369 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 171 places, 240 transitions, 1251 flow [2023-11-30 07:37:22,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-30 07:37:22,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-30 07:37:22,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 989 transitions. [2023-11-30 07:37:22,371 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7720530835284933 [2023-11-30 07:37:22,371 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 989 transitions. [2023-11-30 07:37:22,371 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 989 transitions. [2023-11-30 07:37:22,372 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 07:37:22,372 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 989 transitions. [2023-11-30 07:37:22,374 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 141.28571428571428) internal successors, (989), 7 states have internal predecessors, (989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:37:22,376 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 183.0) internal successors, (1464), 8 states have internal predecessors, (1464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:37:22,376 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 183.0) internal successors, (1464), 8 states have internal predecessors, (1464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:37:22,377 INFO L307 CegarLoopForPetriNet]: 170 programPoint places, 1 predicate places. [2023-11-30 07:37:22,378 INFO L500 AbstractCegarLoop]: Abstraction has has 171 places, 240 transitions, 1251 flow [2023-11-30 07:37:22,378 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 129.33333333333334) internal successors, (776), 6 states have internal predecessors, (776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:37:22,378 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:37:22,378 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 07:37:22,378 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-30 07:37:22,379 INFO L425 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2023-11-30 07:37:22,380 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:37:22,380 INFO L85 PathProgramCache]: Analyzing trace with hash -840601013, now seen corresponding path program 1 times [2023-11-30 07:37:22,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:37:22,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310543292] [2023-11-30 07:37:22,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:37:22,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:37:22,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:37:22,482 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 07:37:22,482 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 07:37:22,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [310543292] [2023-11-30 07:37:22,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [310543292] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 07:37:22,483 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 07:37:22,483 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-30 07:37:22,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480645106] [2023-11-30 07:37:22,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 07:37:22,486 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-30 07:37:22,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 07:37:22,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-30 07:37:22,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-30 07:37:22,488 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 183 [2023-11-30 07:37:22,489 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 171 places, 240 transitions, 1251 flow. Second operand has 4 states, 4 states have (on average 137.0) internal successors, (548), 4 states have internal predecessors, (548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:37:22,489 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 07:37:22,489 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 183 [2023-11-30 07:37:22,489 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 07:37:22,682 INFO L124 PetriNetUnfolderBase]: 433/1349 cut-off events. [2023-11-30 07:37:22,682 INFO L125 PetriNetUnfolderBase]: For 1854/1932 co-relation queries the response was YES. [2023-11-30 07:37:22,684 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4426 conditions, 1349 events. 433/1349 cut-off events. For 1854/1932 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 8784 event pairs, 38 based on Foata normal form. 0/1302 useless extension candidates. Maximal degree in co-relation 4374. Up to 546 conditions per place. [2023-11-30 07:37:22,691 INFO L140 encePairwiseOnDemand]: 177/183 looper letters, 139 selfloop transitions, 4 changer transitions 6/277 dead transitions. [2023-11-30 07:37:22,691 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 173 places, 277 transitions, 1831 flow [2023-11-30 07:37:22,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-30 07:37:22,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-30 07:37:22,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 745 transitions. [2023-11-30 07:37:22,693 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8142076502732241 [2023-11-30 07:37:22,693 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 745 transitions. [2023-11-30 07:37:22,693 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 745 transitions. [2023-11-30 07:37:22,693 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 07:37:22,693 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 745 transitions. [2023-11-30 07:37:22,695 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 149.0) internal successors, (745), 5 states have internal predecessors, (745), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:37:22,696 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 183.0) internal successors, (1098), 6 states have internal predecessors, (1098), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:37:22,697 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 183.0) internal successors, (1098), 6 states have internal predecessors, (1098), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:37:22,698 INFO L307 CegarLoopForPetriNet]: 170 programPoint places, 3 predicate places. [2023-11-30 07:37:22,698 INFO L500 AbstractCegarLoop]: Abstraction has has 173 places, 277 transitions, 1831 flow [2023-11-30 07:37:22,698 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 137.0) internal successors, (548), 4 states have internal predecessors, (548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:37:22,698 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:37:22,698 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 07:37:22,698 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-30 07:37:22,699 INFO L425 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2023-11-30 07:37:22,699 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:37:22,699 INFO L85 PathProgramCache]: Analyzing trace with hash -563182771, now seen corresponding path program 1 times [2023-11-30 07:37:22,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:37:22,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007434668] [2023-11-30 07:37:22,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:37:22,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:37:22,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:37:22,822 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 07:37:22,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 07:37:22,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1007434668] [2023-11-30 07:37:22,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1007434668] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 07:37:22,823 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 07:37:22,823 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-30 07:37:22,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514795481] [2023-11-30 07:37:22,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 07:37:22,824 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-30 07:37:22,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 07:37:22,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-30 07:37:22,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-30 07:37:22,826 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 183 [2023-11-30 07:37:22,827 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 173 places, 277 transitions, 1831 flow. Second operand has 6 states, 6 states have (on average 132.16666666666666) internal successors, (793), 6 states have internal predecessors, (793), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:37:22,827 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 07:37:22,827 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 183 [2023-11-30 07:37:22,827 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 07:37:23,152 INFO L124 PetriNetUnfolderBase]: 485/1384 cut-off events. [2023-11-30 07:37:23,152 INFO L125 PetriNetUnfolderBase]: For 3276/3380 co-relation queries the response was YES. [2023-11-30 07:37:23,154 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5483 conditions, 1384 events. 485/1384 cut-off events. For 3276/3380 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 9060 event pairs, 38 based on Foata normal form. 0/1354 useless extension candidates. Maximal degree in co-relation 5428. Up to 594 conditions per place. [2023-11-30 07:37:23,159 INFO L140 encePairwiseOnDemand]: 175/183 looper letters, 175 selfloop transitions, 7 changer transitions 10/315 dead transitions. [2023-11-30 07:37:23,159 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 179 places, 315 transitions, 2577 flow [2023-11-30 07:37:23,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-30 07:37:23,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-11-30 07:37:23,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1149 transitions. [2023-11-30 07:37:23,162 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7848360655737705 [2023-11-30 07:37:23,162 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1149 transitions. [2023-11-30 07:37:23,162 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1149 transitions. [2023-11-30 07:37:23,162 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 07:37:23,162 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1149 transitions. [2023-11-30 07:37:23,164 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 143.625) internal successors, (1149), 8 states have internal predecessors, (1149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:37:23,165 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 183.0) internal successors, (1647), 9 states have internal predecessors, (1647), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:37:23,166 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 183.0) internal successors, (1647), 9 states have internal predecessors, (1647), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:37:23,167 INFO L307 CegarLoopForPetriNet]: 170 programPoint places, 9 predicate places. [2023-11-30 07:37:23,168 INFO L500 AbstractCegarLoop]: Abstraction has has 179 places, 315 transitions, 2577 flow [2023-11-30 07:37:23,168 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 132.16666666666666) internal successors, (793), 6 states have internal predecessors, (793), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:37:23,168 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:37:23,168 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 07:37:23,168 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-30 07:37:23,169 INFO L425 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2023-11-30 07:37:23,169 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:37:23,169 INFO L85 PathProgramCache]: Analyzing trace with hash -278796143, now seen corresponding path program 1 times [2023-11-30 07:37:23,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:37:23,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426832588] [2023-11-30 07:37:23,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:37:23,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:37:23,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:37:23,263 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 07:37:23,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 07:37:23,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [426832588] [2023-11-30 07:37:23,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [426832588] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 07:37:23,263 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 07:37:23,263 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-30 07:37:23,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444897657] [2023-11-30 07:37:23,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 07:37:23,264 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-30 07:37:23,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 07:37:23,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-30 07:37:23,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-30 07:37:23,265 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 183 [2023-11-30 07:37:23,266 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 179 places, 315 transitions, 2577 flow. Second operand has 6 states, 6 states have (on average 132.33333333333334) internal successors, (794), 6 states have internal predecessors, (794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:37:23,266 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 07:37:23,266 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 183 [2023-11-30 07:37:23,266 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 07:37:23,508 INFO L124 PetriNetUnfolderBase]: 472/1354 cut-off events. [2023-11-30 07:37:23,508 INFO L125 PetriNetUnfolderBase]: For 4428/4558 co-relation queries the response was YES. [2023-11-30 07:37:23,510 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6170 conditions, 1354 events. 472/1354 cut-off events. For 4428/4558 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 8731 event pairs, 38 based on Foata normal form. 0/1341 useless extension candidates. Maximal degree in co-relation 6112. Up to 582 conditions per place. [2023-11-30 07:37:23,512 INFO L140 encePairwiseOnDemand]: 176/183 looper letters, 0 selfloop transitions, 0 changer transitions 314/314 dead transitions. [2023-11-30 07:37:23,512 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 184 places, 314 transitions, 2947 flow [2023-11-30 07:37:23,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-30 07:37:23,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-30 07:37:23,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 993 transitions. [2023-11-30 07:37:23,515 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.775175644028103 [2023-11-30 07:37:23,515 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 993 transitions. [2023-11-30 07:37:23,515 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 993 transitions. [2023-11-30 07:37:23,515 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 07:37:23,515 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 993 transitions. [2023-11-30 07:37:23,517 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 141.85714285714286) internal successors, (993), 7 states have internal predecessors, (993), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:37:23,518 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 183.0) internal successors, (1464), 8 states have internal predecessors, (1464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:37:23,519 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 183.0) internal successors, (1464), 8 states have internal predecessors, (1464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:37:23,521 INFO L307 CegarLoopForPetriNet]: 170 programPoint places, 14 predicate places. [2023-11-30 07:37:23,521 INFO L500 AbstractCegarLoop]: Abstraction has has 184 places, 314 transitions, 2947 flow [2023-11-30 07:37:23,521 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 132.33333333333334) internal successors, (794), 6 states have internal predecessors, (794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:37:23,526 INFO L143 wickiGriesTestDumper]: Dumping Owicki-Gries test to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/13-privatized_24-multiple-protecting_true.i_BEv2_AllErrorsAtOnce [2023-11-30 07:37:23,558 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (16 of 17 remaining) [2023-11-30 07:37:23,559 INFO L810 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 17 remaining) [2023-11-30 07:37:23,559 INFO L810 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 17 remaining) [2023-11-30 07:37:23,559 INFO L810 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 17 remaining) [2023-11-30 07:37:23,559 INFO L810 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 17 remaining) [2023-11-30 07:37:23,559 INFO L810 garLoopResultBuilder]: Registering result SAFE for location t_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 17 remaining) [2023-11-30 07:37:23,559 INFO L810 garLoopResultBuilder]: Registering result SAFE for location t_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 17 remaining) [2023-11-30 07:37:23,559 INFO L810 garLoopResultBuilder]: Registering result SAFE for location t_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 17 remaining) [2023-11-30 07:37:23,559 INFO L810 garLoopResultBuilder]: Registering result SAFE for location t_funErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 17 remaining) [2023-11-30 07:37:23,559 INFO L810 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 17 remaining) [2023-11-30 07:37:23,559 INFO L810 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 17 remaining) [2023-11-30 07:37:23,560 INFO L810 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 17 remaining) [2023-11-30 07:37:23,560 INFO L810 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 17 remaining) [2023-11-30 07:37:23,560 INFO L810 garLoopResultBuilder]: Registering result SAFE for location t_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 17 remaining) [2023-11-30 07:37:23,560 INFO L810 garLoopResultBuilder]: Registering result SAFE for location t_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 17 remaining) [2023-11-30 07:37:23,560 INFO L810 garLoopResultBuilder]: Registering result SAFE for location t_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 17 remaining) [2023-11-30 07:37:23,560 INFO L810 garLoopResultBuilder]: Registering result SAFE for location t_funErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 17 remaining) [2023-11-30 07:37:23,560 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-30 07:37:23,561 INFO L457 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2023-11-30 07:37:23,564 INFO L222 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-30 07:37:23,564 INFO L172 ceAbstractionStarter]: Computing trace abstraction results [2023-11-30 07:37:23,573 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 07:37:23 BasicIcfg [2023-11-30 07:37:23,573 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-30 07:37:23,574 INFO L158 Benchmark]: Toolchain (without parser) took 3993.71ms. Allocated memory is still 614.5MB. Free memory was 566.2MB in the beginning and 411.3MB in the end (delta: 154.9MB). Peak memory consumption was 156.7MB. Max. memory is 16.0GB. [2023-11-30 07:37:23,574 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 352.3MB. Free memory is still 300.4MB. There was no memory consumed. Max. memory is 16.0GB. [2023-11-30 07:37:23,574 INFO L158 Benchmark]: CACSL2BoogieTranslator took 350.59ms. Allocated memory is still 614.5MB. Free memory was 566.2MB in the beginning and 546.2MB in the end (delta: 20.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2023-11-30 07:37:23,574 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.68ms. Allocated memory is still 614.5MB. Free memory was 546.2MB in the beginning and 544.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-11-30 07:37:23,574 INFO L158 Benchmark]: Boogie Preprocessor took 31.49ms. Allocated memory is still 614.5MB. Free memory was 544.1MB in the beginning and 542.2MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-11-30 07:37:23,575 INFO L158 Benchmark]: RCFGBuilder took 519.01ms. Allocated memory is still 614.5MB. Free memory was 542.2MB in the beginning and 518.3MB in the end (delta: 23.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.0GB. [2023-11-30 07:37:23,575 INFO L158 Benchmark]: TraceAbstraction took 3027.37ms. Allocated memory is still 614.5MB. Free memory was 517.6MB in the beginning and 411.3MB in the end (delta: 106.3MB). Peak memory consumption was 108.5MB. Max. memory is 16.0GB. [2023-11-30 07:37:23,577 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 352.3MB. Free memory is still 300.4MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 350.59ms. Allocated memory is still 614.5MB. Free memory was 566.2MB in the beginning and 546.2MB in the end (delta: 20.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 49.68ms. Allocated memory is still 614.5MB. Free memory was 546.2MB in the beginning and 544.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 31.49ms. Allocated memory is still 614.5MB. Free memory was 544.1MB in the beginning and 542.2MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 519.01ms. Allocated memory is still 614.5MB. Free memory was 542.2MB in the beginning and 518.3MB in the end (delta: 23.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.0GB. * TraceAbstraction took 3027.37ms. Allocated memory is still 614.5MB. Free memory was 517.6MB in the beginning and 411.3MB in the end (delta: 106.3MB). Peak memory consumption was 108.5MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 688]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 688]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 691]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 691]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 696]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 696]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 699]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 699]: 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 3 procedures, 233 locations, 17 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: 2.9s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 549 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 549 mSDsluCounter, 54 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 34 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1181 IncrementalHoareTripleChecker+Invalid, 1185 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 20 mSDtfsCounter, 1181 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 40 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2947occurred in iteration=6, InterpolantAutomatonStates: 40, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 362 NumberOfCodeBlocks, 362 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 356 ConstructedInterpolants, 0 QuantifiedInterpolants, 990 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-30 07:37:23,593 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...