/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/09-regions_13-arraycollapse_nr.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.empire-owicki-175f719-m [2023-11-30 07:33:54,443 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-30 07:33:54,482 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 07:33:54,498 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-30 07:33:54,498 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-30 07:33:54,499 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-30 07:33:54,499 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-30 07:33:54,499 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-30 07:33:54,500 INFO L153 SettingsManager]: * Use SBE=true [2023-11-30 07:33:54,500 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-30 07:33:54,500 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-30 07:33:54,500 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-30 07:33:54,501 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-30 07:33:54,501 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-30 07:33:54,501 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-30 07:33:54,501 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-30 07:33:54,501 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-30 07:33:54,502 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-30 07:33:54,502 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-30 07:33:54,502 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-30 07:33:54,502 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-30 07:33:54,503 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-30 07:33:54,503 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-30 07:33:54,503 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-11-30 07:33:54,503 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-30 07:33:54,503 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-30 07:33:54,503 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-30 07:33:54,504 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-30 07:33:54,504 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-30 07:33:54,504 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-30 07:33:54,504 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-30 07:33:54,504 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-30 07:33:54,505 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-30 07:33:54,505 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2023-11-30 07:33:54,640 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-30 07:33:54,652 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-30 07:33:54,654 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-30 07:33:54,655 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-30 07:33:54,655 INFO L274 PluginConnector]: CDTParser initialized [2023-11-30 07:33:54,656 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/09-regions_13-arraycollapse_nr.i [2023-11-30 07:33:55,702 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-30 07:33:55,939 INFO L384 CDTParser]: Found 1 translation units. [2023-11-30 07:33:55,940 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/09-regions_13-arraycollapse_nr.i [2023-11-30 07:33:55,959 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4296e51b4/d8d96ec2281746bdb582b28e6fcfadd5/FLAG078d30a08 [2023-11-30 07:33:55,972 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4296e51b4/d8d96ec2281746bdb582b28e6fcfadd5 [2023-11-30 07:33:55,975 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-30 07:33:55,976 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-11-30 07:33:55,978 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-30 07:33:55,978 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-30 07:33:55,981 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-30 07:33:55,981 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 07:33:55" (1/1) ... [2023-11-30 07:33:55,982 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18f594c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:33:55, skipping insertion in model container [2023-11-30 07:33:55,983 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 07:33:55" (1/1) ... [2023-11-30 07:33:56,028 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-30 07:33:56,376 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-30 07:33:56,392 INFO L202 MainTranslator]: Completed pre-run [2023-11-30 07:33:56,438 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-30 07:33:56,493 INFO L206 MainTranslator]: Completed translation [2023-11-30 07:33:56,493 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:33:56 WrapperNode [2023-11-30 07:33:56,493 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-30 07:33:56,494 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-30 07:33:56,494 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-30 07:33:56,494 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-30 07:33:56,499 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:33:56" (1/1) ... [2023-11-30 07:33:56,520 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:33:56" (1/1) ... [2023-11-30 07:33:56,543 INFO L138 Inliner]: procedures = 371, calls = 39, calls flagged for inlining = 14, calls inlined = 14, statements flattened = 176 [2023-11-30 07:33:56,543 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-30 07:33:56,544 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-30 07:33:56,544 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-30 07:33:56,544 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-30 07:33:56,555 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:33:56" (1/1) ... [2023-11-30 07:33:56,556 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:33:56" (1/1) ... [2023-11-30 07:33:56,559 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:33:56" (1/1) ... [2023-11-30 07:33:56,560 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:33:56" (1/1) ... [2023-11-30 07:33:56,567 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:33:56" (1/1) ... [2023-11-30 07:33:56,569 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:33:56" (1/1) ... [2023-11-30 07:33:56,571 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:33:56" (1/1) ... [2023-11-30 07:33:56,572 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:33:56" (1/1) ... [2023-11-30 07:33:56,574 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-30 07:33:56,575 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-30 07:33:56,575 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-30 07:33:56,575 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-30 07:33:56,576 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:33:56" (1/1) ... [2023-11-30 07:33:56,579 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-30 07:33:56,589 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 07:33:56,607 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 07:33:56,630 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-30 07:33:56,630 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-30 07:33:56,630 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-30 07:33:56,630 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-30 07:33:56,630 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-30 07:33:56,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-30 07:33:56,631 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-30 07:33:56,631 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-30 07:33:56,631 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-30 07:33:56,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-30 07:33:56,631 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-11-30 07:33:56,631 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-11-30 07:33:56,631 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-30 07:33:56,631 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-30 07:33:56,632 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 07:33:56,634 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 07:33:56,757 INFO L241 CfgBuilder]: Building ICFG [2023-11-30 07:33:56,759 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-30 07:33:56,994 INFO L282 CfgBuilder]: Performing block encoding [2023-11-30 07:33:57,010 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-30 07:33:57,011 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-30 07:33:57,012 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 07:33:57 BoogieIcfgContainer [2023-11-30 07:33:57,012 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-30 07:33:57,013 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-30 07:33:57,013 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-30 07:33:57,015 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-30 07:33:57,015 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 07:33:55" (1/3) ... [2023-11-30 07:33:57,016 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1928d199 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 07:33:57, skipping insertion in model container [2023-11-30 07:33:57,016 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:33:56" (2/3) ... [2023-11-30 07:33:57,016 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1928d199 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 07:33:57, skipping insertion in model container [2023-11-30 07:33:57,016 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 07:33:57" (3/3) ... [2023-11-30 07:33:57,017 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_13-arraycollapse_nr.i [2023-11-30 07:33:57,028 INFO L197 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-30 07:33:57,028 INFO L156 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-30 07:33:57,029 INFO L508 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-30 07:33:57,071 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-30 07:33:57,103 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 217 places, 218 transitions, 440 flow [2023-11-30 07:33:57,172 INFO L124 PetriNetUnfolderBase]: 5/217 cut-off events. [2023-11-30 07:33:57,172 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-30 07:33:57,176 INFO L83 FinitePrefix]: Finished finitePrefix Result has 221 conditions, 217 events. 5/217 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 154 event pairs, 0 based on Foata normal form. 0/210 useless extension candidates. Maximal degree in co-relation 150. Up to 2 conditions per place. [2023-11-30 07:33:57,176 INFO L82 GeneralOperation]: Start removeDead. Operand has 217 places, 218 transitions, 440 flow [2023-11-30 07:33:57,178 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 62 places, 62 transitions, 124 flow [2023-11-30 07:33:57,188 INFO L361 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-30 07:33:57,194 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;@64a407ae, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-30 07:33:57,194 INFO L363 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-11-30 07:33:57,203 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-30 07:33:57,203 INFO L124 PetriNetUnfolderBase]: 0/56 cut-off events. [2023-11-30 07:33:57,204 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-30 07:33:57,208 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:33:57,209 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 07:33:57,210 INFO L425 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-30 07:33:57,214 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:33:57,214 INFO L85 PathProgramCache]: Analyzing trace with hash -1456618704, now seen corresponding path program 1 times [2023-11-30 07:33:57,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:33:57,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [643154826] [2023-11-30 07:33:57,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:33:57,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:33:57,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:33:57,586 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 07:33:57,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 07:33:57,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [643154826] [2023-11-30 07:33:57,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [643154826] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 07:33:57,587 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 07:33:57,587 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-30 07:33:57,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924022893] [2023-11-30 07:33:57,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 07:33:57,594 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-30 07:33:57,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 07:33:57,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-30 07:33:57,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-30 07:33:57,619 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 193 out of 218 [2023-11-30 07:33:57,622 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 62 transitions, 124 flow. Second operand has 4 states, 4 states have (on average 195.0) internal successors, (780), 4 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:33:57,622 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 07:33:57,622 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 193 of 218 [2023-11-30 07:33:57,623 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 07:33:57,711 INFO L124 PetriNetUnfolderBase]: 1/111 cut-off events. [2023-11-30 07:33:57,711 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-30 07:33:57,713 INFO L83 FinitePrefix]: Finished finitePrefix Result has 135 conditions, 111 events. 1/111 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 3 event pairs, 0 based on Foata normal form. 0/109 useless extension candidates. Maximal degree in co-relation 0. Up to 14 conditions per place. [2023-11-30 07:33:57,714 INFO L140 encePairwiseOnDemand]: 212/218 looper letters, 18 selfloop transitions, 4 changer transitions 0/71 dead transitions. [2023-11-30 07:33:57,714 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 71 transitions, 186 flow [2023-11-30 07:33:57,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-30 07:33:57,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-30 07:33:57,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 989 transitions. [2023-11-30 07:33:57,730 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.9073394495412844 [2023-11-30 07:33:57,731 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 989 transitions. [2023-11-30 07:33:57,731 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 989 transitions. [2023-11-30 07:33:57,734 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 07:33:57,736 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 989 transitions. [2023-11-30 07:33:57,741 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 197.8) internal successors, (989), 5 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 07:33:57,747 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 218.0) internal successors, (1308), 6 states have internal predecessors, (1308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:33:57,747 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 218.0) internal successors, (1308), 6 states have internal predecessors, (1308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:33:57,751 INFO L307 CegarLoopForPetriNet]: 62 programPoint places, 4 predicate places. [2023-11-30 07:33:57,751 INFO L500 AbstractCegarLoop]: Abstraction has has 66 places, 71 transitions, 186 flow [2023-11-30 07:33:57,752 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 195.0) internal successors, (780), 4 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:33:57,752 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:33:57,752 INFO L232 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-11-30 07:33:57,752 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-30 07:33:57,753 INFO L425 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-30 07:33:57,754 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:33:57,754 INFO L85 PathProgramCache]: Analyzing trace with hash -1671073467, now seen corresponding path program 1 times [2023-11-30 07:33:57,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:33:57,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87469584] [2023-11-30 07:33:57,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:33:57,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:33:57,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:33:58,096 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 07:33:58,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 07:33:58,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87469584] [2023-11-30 07:33:58,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [87469584] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-30 07:33:58,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [909272798] [2023-11-30 07:33:58,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:33:58,097 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 07:33:58,097 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 07:33:58,101 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 07:33:58,110 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 07:33:58,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:33:58,289 INFO L262 TraceCheckSpWp]: Trace formula consists of 421 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-30 07:33:58,297 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 07:33:58,452 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 07:33:58,452 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-30 07:33:58,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [909272798] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 07:33:58,453 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-30 07:33:58,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2023-11-30 07:33:58,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030947851] [2023-11-30 07:33:58,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 07:33:58,454 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-30 07:33:58,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 07:33:58,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-30 07:33:58,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-30 07:33:58,457 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 193 out of 218 [2023-11-30 07:33:58,458 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 71 transitions, 186 flow. Second operand has 6 states, 6 states have (on average 195.83333333333334) internal successors, (1175), 6 states have internal predecessors, (1175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:33:58,458 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 07:33:58,458 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 193 of 218 [2023-11-30 07:33:58,458 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 07:33:58,526 INFO L124 PetriNetUnfolderBase]: 1/110 cut-off events. [2023-11-30 07:33:58,526 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2023-11-30 07:33:58,526 INFO L83 FinitePrefix]: Finished finitePrefix Result has 155 conditions, 110 events. 1/110 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 2 event pairs, 0 based on Foata normal form. 0/109 useless extension candidates. Maximal degree in co-relation 0. Up to 13 conditions per place. [2023-11-30 07:33:58,527 INFO L140 encePairwiseOnDemand]: 213/218 looper letters, 15 selfloop transitions, 6 changer transitions 0/70 dead transitions. [2023-11-30 07:33:58,527 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 70 transitions, 224 flow [2023-11-30 07:33:58,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-30 07:33:58,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-30 07:33:58,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1373 transitions. [2023-11-30 07:33:58,531 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8997378768020969 [2023-11-30 07:33:58,531 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1373 transitions. [2023-11-30 07:33:58,531 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1373 transitions. [2023-11-30 07:33:58,531 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 07:33:58,532 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1373 transitions. [2023-11-30 07:33:58,534 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 196.14285714285714) internal successors, (1373), 7 states have internal predecessors, (1373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:33:58,536 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 218.0) internal successors, (1744), 8 states have internal predecessors, (1744), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:33:58,537 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 218.0) internal successors, (1744), 8 states have internal predecessors, (1744), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:33:58,538 INFO L307 CegarLoopForPetriNet]: 62 programPoint places, 9 predicate places. [2023-11-30 07:33:58,538 INFO L500 AbstractCegarLoop]: Abstraction has has 71 places, 70 transitions, 224 flow [2023-11-30 07:33:58,539 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 195.83333333333334) internal successors, (1175), 6 states have internal predecessors, (1175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:33:58,539 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:33:58,539 INFO L232 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-11-30 07:33:58,547 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 07:33:58,745 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 07:33:58,745 INFO L425 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-30 07:33:58,746 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:33:58,746 INFO L85 PathProgramCache]: Analyzing trace with hash -263669604, now seen corresponding path program 1 times [2023-11-30 07:33:58,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:33:58,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486658124] [2023-11-30 07:33:58,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:33:58,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:33:58,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:33:58,870 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-30 07:33:58,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 07:33:58,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486658124] [2023-11-30 07:33:58,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1486658124] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 07:33:58,874 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 07:33:58,874 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-30 07:33:58,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539709871] [2023-11-30 07:33:58,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 07:33:58,878 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-30 07:33:58,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 07:33:58,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-30 07:33:58,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-30 07:33:58,881 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 193 out of 218 [2023-11-30 07:33:58,881 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 70 transitions, 224 flow. Second operand has 4 states, 4 states have (on average 197.5) internal successors, (790), 4 states have internal predecessors, (790), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:33:58,881 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 07:33:58,881 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 193 of 218 [2023-11-30 07:33:58,882 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 07:33:58,913 INFO L124 PetriNetUnfolderBase]: 1/109 cut-off events. [2023-11-30 07:33:58,913 INFO L125 PetriNetUnfolderBase]: For 21/21 co-relation queries the response was YES. [2023-11-30 07:33:58,913 INFO L83 FinitePrefix]: Finished finitePrefix Result has 173 conditions, 109 events. 1/109 cut-off events. For 21/21 co-relation queries the response was YES. Maximal size of possible extension queue 1. Compared 1 event pairs, 0 based on Foata normal form. 0/109 useless extension candidates. Maximal degree in co-relation 0. Up to 12 conditions per place. [2023-11-30 07:33:58,913 INFO L140 encePairwiseOnDemand]: 212/218 looper letters, 0 selfloop transitions, 0 changer transitions 69/69 dead transitions. [2023-11-30 07:33:58,913 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 69 transitions, 258 flow [2023-11-30 07:33:58,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-30 07:33:58,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-30 07:33:58,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 978 transitions. [2023-11-30 07:33:58,915 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8972477064220183 [2023-11-30 07:33:58,915 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 978 transitions. [2023-11-30 07:33:58,915 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 978 transitions. [2023-11-30 07:33:58,916 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 07:33:58,916 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 978 transitions. [2023-11-30 07:33:58,917 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 195.6) internal successors, (978), 5 states have internal predecessors, (978), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:33:58,918 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 218.0) internal successors, (1308), 6 states have internal predecessors, (1308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:33:58,919 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 218.0) internal successors, (1308), 6 states have internal predecessors, (1308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:33:58,920 INFO L307 CegarLoopForPetriNet]: 62 programPoint places, 12 predicate places. [2023-11-30 07:33:58,920 INFO L500 AbstractCegarLoop]: Abstraction has has 74 places, 69 transitions, 258 flow [2023-11-30 07:33:58,921 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 197.5) internal successors, (790), 4 states have internal predecessors, (790), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:33:58,932 INFO L143 wickiGriesTestDumper]: Dumping Owicki-Gries test to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/09-regions_13-arraycollapse_nr.i_BEv2_AllErrorsAtOnce [2023-11-30 07:33:58,961 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 3 remaining) [2023-11-30 07:33:58,961 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 3 remaining) [2023-11-30 07:33:58,961 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2023-11-30 07:33:58,961 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-30 07:33:58,962 INFO L457 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-11-30 07:33:58,963 INFO L222 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-30 07:33:58,964 INFO L172 ceAbstractionStarter]: Computing trace abstraction results [2023-11-30 07:33:58,971 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 07:33:58 BasicIcfg [2023-11-30 07:33:58,971 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-30 07:33:58,972 INFO L158 Benchmark]: Toolchain (without parser) took 2995.19ms. Allocated memory is still 662.7MB. Free memory was 621.0MB in the beginning and 496.1MB in the end (delta: 124.9MB). Peak memory consumption was 128.1MB. Max. memory is 16.0GB. [2023-11-30 07:33:58,972 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 375.4MB. Free memory is still 327.9MB. There was no memory consumed. Max. memory is 16.0GB. [2023-11-30 07:33:58,973 INFO L158 Benchmark]: CACSL2BoogieTranslator took 515.75ms. Allocated memory is still 662.7MB. Free memory was 621.0MB in the beginning and 582.1MB in the end (delta: 38.9MB). Peak memory consumption was 39.8MB. Max. memory is 16.0GB. [2023-11-30 07:33:58,973 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.37ms. Allocated memory is still 662.7MB. Free memory was 582.1MB in the beginning and 578.7MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. [2023-11-30 07:33:58,973 INFO L158 Benchmark]: Boogie Preprocessor took 30.63ms. Allocated memory is still 662.7MB. Free memory was 578.7MB in the beginning and 576.3MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-11-30 07:33:58,978 INFO L158 Benchmark]: RCFGBuilder took 437.03ms. Allocated memory is still 662.7MB. Free memory was 576.3MB in the beginning and 608.1MB in the end (delta: -31.9MB). Peak memory consumption was 12.7MB. Max. memory is 16.0GB. [2023-11-30 07:33:58,978 INFO L158 Benchmark]: TraceAbstraction took 1958.03ms. Allocated memory is still 662.7MB. Free memory was 608.1MB in the beginning and 496.1MB in the end (delta: 112.0MB). Peak memory consumption was 111.2MB. Max. memory is 16.0GB. [2023-11-30 07:33:58,980 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 375.4MB. Free memory is still 327.9MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 515.75ms. Allocated memory is still 662.7MB. Free memory was 621.0MB in the beginning and 582.1MB in the end (delta: 38.9MB). Peak memory consumption was 39.8MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 49.37ms. Allocated memory is still 662.7MB. Free memory was 582.1MB in the beginning and 578.7MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. * Boogie Preprocessor took 30.63ms. Allocated memory is still 662.7MB. Free memory was 578.7MB in the beginning and 576.3MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 437.03ms. Allocated memory is still 662.7MB. Free memory was 576.3MB in the beginning and 608.1MB in the end (delta: -31.9MB). Peak memory consumption was 12.7MB. Max. memory is 16.0GB. * TraceAbstraction took 1958.03ms. Allocated memory is still 662.7MB. Free memory was 608.1MB in the beginning and 496.1MB in the end (delta: 112.0MB). Peak memory consumption was 111.2MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 1254]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1254]: 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, 261 locations, 3 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: 1.9s, OverallIterations: 3, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 24 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 24 mSDsluCounter, 21 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 9 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 85 IncrementalHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 12 mSDtfsCounter, 85 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 121 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=258occurred in iteration=3, InterpolantAutomatonStates: 17, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 376 NumberOfCodeBlocks, 376 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 372 ConstructedInterpolants, 0 QuantifiedInterpolants, 936 SizeOfPredicates, 3 NumberOfNonLiveVariables, 421 ConjunctsInSsa, 5 ConjunctsInUnsatCore, 4 InterpolantComputations, 3 PerfectInterpolantSequences, 93/139 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 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-30 07:33:58,995 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...