/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg true --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true -i ../../../trunk/examples/svcomp/pthread-wmm/rfi006_pso.oepc_pso.opt_tso.oepc_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.empire-owicki-175f719-m [2023-11-30 06:43:22,501 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-30 06:43:22,572 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 06:43:22,595 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-30 06:43:22,597 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-30 06:43:22,597 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-30 06:43:22,597 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-30 06:43:22,598 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-30 06:43:22,598 INFO L153 SettingsManager]: * Use SBE=true [2023-11-30 06:43:22,600 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-30 06:43:22,601 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-30 06:43:22,601 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-30 06:43:22,601 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-30 06:43:22,602 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-30 06:43:22,602 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-30 06:43:22,602 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-30 06:43:22,602 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-30 06:43:22,602 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-30 06:43:22,603 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-30 06:43:22,603 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-30 06:43:22,603 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-30 06:43:22,604 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-30 06:43:22,604 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-30 06:43:22,604 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-11-30 06:43:22,604 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-30 06:43:22,604 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-30 06:43:22,604 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-30 06:43:22,604 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-30 06:43:22,605 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-30 06:43:22,605 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-30 06:43:22,605 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-30 06:43:22,605 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-30 06:43:22,606 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-30 06:43:22,606 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2023-11-30 06:43:22,774 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-30 06:43:22,792 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-30 06:43:22,793 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-30 06:43:22,794 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-30 06:43:22,795 INFO L274 PluginConnector]: CDTParser initialized [2023-11-30 06:43:22,795 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/rfi006_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2023-11-30 06:43:23,817 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-30 06:43:23,993 INFO L384 CDTParser]: Found 1 translation units. [2023-11-30 06:43:23,993 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/rfi006_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2023-11-30 06:43:24,006 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f10385222/65231774c24a42bd99d99a66e1c9c0e4/FLAGaf710f741 [2023-11-30 06:43:24,016 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f10385222/65231774c24a42bd99d99a66e1c9c0e4 [2023-11-30 06:43:24,017 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-30 06:43:24,018 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-11-30 06:43:24,019 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-30 06:43:24,019 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-30 06:43:24,022 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-30 06:43:24,022 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 06:43:24" (1/1) ... [2023-11-30 06:43:24,023 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d17a75b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 06:43:24, skipping insertion in model container [2023-11-30 06:43:24,023 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 06:43:24" (1/1) ... [2023-11-30 06:43:24,060 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-30 06:43:24,336 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-30 06:43:24,342 INFO L202 MainTranslator]: Completed pre-run [2023-11-30 06:43:24,405 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-30 06:43:24,423 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-30 06:43:24,423 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-30 06:43:24,428 INFO L206 MainTranslator]: Completed translation [2023-11-30 06:43:24,428 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 06:43:24 WrapperNode [2023-11-30 06:43:24,428 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-30 06:43:24,429 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-30 06:43:24,429 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-30 06:43:24,429 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-30 06:43:24,434 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 06:43:24" (1/1) ... [2023-11-30 06:43:24,444 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 06:43:24" (1/1) ... [2023-11-30 06:43:24,467 INFO L138 Inliner]: procedures = 176, calls = 55, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 172 [2023-11-30 06:43:24,468 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-30 06:43:24,468 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-30 06:43:24,468 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-30 06:43:24,469 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-30 06:43:24,475 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 06:43:24" (1/1) ... [2023-11-30 06:43:24,475 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 06:43:24" (1/1) ... [2023-11-30 06:43:24,477 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 06:43:24" (1/1) ... [2023-11-30 06:43:24,477 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 06:43:24" (1/1) ... [2023-11-30 06:43:24,485 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 06:43:24" (1/1) ... [2023-11-30 06:43:24,486 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 06:43:24" (1/1) ... [2023-11-30 06:43:24,488 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 06:43:24" (1/1) ... [2023-11-30 06:43:24,489 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 06:43:24" (1/1) ... [2023-11-30 06:43:24,492 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-30 06:43:24,503 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-30 06:43:24,503 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-30 06:43:24,504 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-30 06:43:24,504 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 06:43:24" (1/1) ... [2023-11-30 06:43:24,508 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-30 06:43:24,515 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 06:43:24,524 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 06:43:24,528 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 06:43:24,550 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-30 06:43:24,550 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-30 06:43:24,551 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-30 06:43:24,551 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-30 06:43:24,551 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-30 06:43:24,551 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-11-30 06:43:24,552 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-11-30 06:43:24,552 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-11-30 06:43:24,552 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-11-30 06:43:24,552 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-11-30 06:43:24,552 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-11-30 06:43:24,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-30 06:43:24,552 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-30 06:43:24,552 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-30 06:43:24,553 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-30 06:43:24,554 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 06:43:24,650 INFO L241 CfgBuilder]: Building ICFG [2023-11-30 06:43:24,653 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-30 06:43:24,913 INFO L282 CfgBuilder]: Performing block encoding [2023-11-30 06:43:25,047 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-30 06:43:25,048 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-30 06:43:25,049 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 06:43:25 BoogieIcfgContainer [2023-11-30 06:43:25,049 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-30 06:43:25,050 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-30 06:43:25,050 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-30 06:43:25,052 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-30 06:43:25,052 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 06:43:24" (1/3) ... [2023-11-30 06:43:25,053 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@680c8bbc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 06:43:25, skipping insertion in model container [2023-11-30 06:43:25,053 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 06:43:24" (2/3) ... [2023-11-30 06:43:25,053 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@680c8bbc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 06:43:25, skipping insertion in model container [2023-11-30 06:43:25,053 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 06:43:25" (3/3) ... [2023-11-30 06:43:25,055 INFO L112 eAbstractionObserver]: Analyzing ICFG rfi006_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2023-11-30 06:43:25,067 INFO L197 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-30 06:43:25,067 INFO L156 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-11-30 06:43:25,068 INFO L508 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-30 06:43:25,112 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-30 06:43:25,147 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 127 places, 120 transitions, 252 flow [2023-11-30 06:43:25,199 INFO L124 PetriNetUnfolderBase]: 3/117 cut-off events. [2023-11-30 06:43:25,199 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-30 06:43:25,203 INFO L83 FinitePrefix]: Finished finitePrefix Result has 127 conditions, 117 events. 3/117 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 81 event pairs, 0 based on Foata normal form. 0/108 useless extension candidates. Maximal degree in co-relation 82. Up to 2 conditions per place. [2023-11-30 06:43:25,204 INFO L82 GeneralOperation]: Start removeDead. Operand has 127 places, 120 transitions, 252 flow [2023-11-30 06:43:25,210 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 124 places, 117 transitions, 243 flow [2023-11-30 06:43:25,223 INFO L361 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-30 06:43:25,229 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;@4f4956fe, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-30 06:43:25,229 INFO L363 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2023-11-30 06:43:25,241 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-30 06:43:25,241 INFO L124 PetriNetUnfolderBase]: 0/48 cut-off events. [2023-11-30 06:43:25,241 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-30 06:43:25,241 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 06:43:25,241 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] [2023-11-30 06:43:25,242 INFO L425 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-30 06:43:25,246 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 06:43:25,246 INFO L85 PathProgramCache]: Analyzing trace with hash 1450203945, now seen corresponding path program 1 times [2023-11-30 06:43:25,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 06:43:25,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [661740853] [2023-11-30 06:43:25,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 06:43:25,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 06:43:25,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 06:43:25,531 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 06:43:25,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 06:43:25,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [661740853] [2023-11-30 06:43:25,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [661740853] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 06:43:25,532 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 06:43:25,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-30 06:43:25,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879002608] [2023-11-30 06:43:25,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 06:43:25,541 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-30 06:43:25,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 06:43:25,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-30 06:43:25,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-30 06:43:25,564 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 120 [2023-11-30 06:43:25,568 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 117 transitions, 243 flow. Second operand has 3 states, 3 states have (on average 96.33333333333333) internal successors, (289), 3 states have internal predecessors, (289), 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 06:43:25,568 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 06:43:25,568 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 120 [2023-11-30 06:43:25,569 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 06:43:25,991 INFO L124 PetriNetUnfolderBase]: 694/2767 cut-off events. [2023-11-30 06:43:25,992 INFO L125 PetriNetUnfolderBase]: For 23/23 co-relation queries the response was YES. [2023-11-30 06:43:26,001 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3915 conditions, 2767 events. 694/2767 cut-off events. For 23/23 co-relation queries the response was YES. Maximal size of possible extension queue 117. Compared 25001 event pairs, 416 based on Foata normal form. 216/2574 useless extension candidates. Maximal degree in co-relation 3867. Up to 915 conditions per place. [2023-11-30 06:43:26,013 INFO L140 encePairwiseOnDemand]: 107/120 looper letters, 30 selfloop transitions, 4 changer transitions 0/124 dead transitions. [2023-11-30 06:43:26,013 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 124 transitions, 331 flow [2023-11-30 06:43:26,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-30 06:43:26,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-30 06:43:26,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 331 transitions. [2023-11-30 06:43:26,026 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.9194444444444444 [2023-11-30 06:43:26,026 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 331 transitions. [2023-11-30 06:43:26,027 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 331 transitions. [2023-11-30 06:43:26,028 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 06:43:26,030 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 331 transitions. [2023-11-30 06:43:26,035 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 110.33333333333333) internal successors, (331), 3 states have internal predecessors, (331), 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 06:43:26,037 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 120.0) internal successors, (480), 4 states have internal predecessors, (480), 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 06:43:26,038 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 120.0) internal successors, (480), 4 states have internal predecessors, (480), 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 06:43:26,041 INFO L307 CegarLoopForPetriNet]: 124 programPoint places, -1 predicate places. [2023-11-30 06:43:26,041 INFO L500 AbstractCegarLoop]: Abstraction has has 123 places, 124 transitions, 331 flow [2023-11-30 06:43:26,042 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 96.33333333333333) internal successors, (289), 3 states have internal predecessors, (289), 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 06:43:26,042 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 06:43:26,042 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 06:43:26,042 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-30 06:43:26,042 INFO L425 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-30 06:43:26,043 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 06:43:26,043 INFO L85 PathProgramCache]: Analyzing trace with hash -39153628, now seen corresponding path program 1 times [2023-11-30 06:43:26,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 06:43:26,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902799113] [2023-11-30 06:43:26,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 06:43:26,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 06:43:26,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 06:43:26,239 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 06:43:26,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 06:43:26,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902799113] [2023-11-30 06:43:26,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [902799113] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 06:43:26,240 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 06:43:26,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-30 06:43:26,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760282255] [2023-11-30 06:43:26,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 06:43:26,242 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-30 06:43:26,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 06:43:26,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-30 06:43:26,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-30 06:43:26,286 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 120 [2023-11-30 06:43:26,286 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 124 transitions, 331 flow. Second operand has 4 states, 4 states have (on average 97.25) internal successors, (389), 4 states have internal predecessors, (389), 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 06:43:26,286 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 06:43:26,286 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 120 [2023-11-30 06:43:26,286 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 06:43:26,511 INFO L124 PetriNetUnfolderBase]: 508/1882 cut-off events. [2023-11-30 06:43:26,511 INFO L125 PetriNetUnfolderBase]: For 134/582 co-relation queries the response was YES. [2023-11-30 06:43:26,517 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3524 conditions, 1882 events. 508/1882 cut-off events. For 134/582 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 14967 event pairs, 254 based on Foata normal form. 22/1704 useless extension candidates. Maximal degree in co-relation 3473. Up to 615 conditions per place. [2023-11-30 06:43:26,524 INFO L140 encePairwiseOnDemand]: 113/120 looper letters, 27 selfloop transitions, 4 changer transitions 0/121 dead transitions. [2023-11-30 06:43:26,524 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 121 transitions, 381 flow [2023-11-30 06:43:26,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-30 06:43:26,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-30 06:43:26,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 414 transitions. [2023-11-30 06:43:26,526 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8625 [2023-11-30 06:43:26,526 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 414 transitions. [2023-11-30 06:43:26,526 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 414 transitions. [2023-11-30 06:43:26,526 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 06:43:26,526 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 414 transitions. [2023-11-30 06:43:26,527 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 103.5) internal successors, (414), 4 states have internal predecessors, (414), 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 06:43:26,529 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 120.0) internal successors, (600), 5 states have internal predecessors, (600), 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 06:43:26,530 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 120.0) internal successors, (600), 5 states have internal predecessors, (600), 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 06:43:26,530 INFO L307 CegarLoopForPetriNet]: 124 programPoint places, -1 predicate places. [2023-11-30 06:43:26,530 INFO L500 AbstractCegarLoop]: Abstraction has has 123 places, 121 transitions, 381 flow [2023-11-30 06:43:26,531 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 97.25) internal successors, (389), 4 states have internal predecessors, (389), 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 06:43:26,531 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 06:43:26,531 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 06:43:26,531 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-30 06:43:26,532 INFO L425 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-30 06:43:26,532 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 06:43:26,532 INFO L85 PathProgramCache]: Analyzing trace with hash -39153627, now seen corresponding path program 1 times [2023-11-30 06:43:26,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 06:43:26,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755997797] [2023-11-30 06:43:26,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 06:43:26,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 06:43:26,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 06:43:26,637 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 06:43:26,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 06:43:26,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [755997797] [2023-11-30 06:43:26,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [755997797] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 06:43:26,637 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 06:43:26,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-30 06:43:26,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157523760] [2023-11-30 06:43:26,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 06:43:26,638 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-30 06:43:26,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 06:43:26,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-30 06:43:26,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-30 06:43:26,639 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 120 [2023-11-30 06:43:26,640 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 121 transitions, 381 flow. Second operand has 4 states, 4 states have (on average 97.25) internal successors, (389), 4 states have internal predecessors, (389), 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 06:43:26,640 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 06:43:26,640 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 120 [2023-11-30 06:43:26,640 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 06:43:26,871 INFO L124 PetriNetUnfolderBase]: 373/1566 cut-off events. [2023-11-30 06:43:26,871 INFO L125 PetriNetUnfolderBase]: For 265/743 co-relation queries the response was YES. [2023-11-30 06:43:26,875 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3363 conditions, 1566 events. 373/1566 cut-off events. For 265/743 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 12290 event pairs, 108 based on Foata normal form. 35/1517 useless extension candidates. Maximal degree in co-relation 3309. Up to 402 conditions per place. [2023-11-30 06:43:26,881 INFO L140 encePairwiseOnDemand]: 113/120 looper letters, 33 selfloop transitions, 7 changer transitions 3/133 dead transitions. [2023-11-30 06:43:26,882 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 133 transitions, 542 flow [2023-11-30 06:43:26,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-30 06:43:26,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-30 06:43:26,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 426 transitions. [2023-11-30 06:43:26,883 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8875 [2023-11-30 06:43:26,883 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 426 transitions. [2023-11-30 06:43:26,884 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 426 transitions. [2023-11-30 06:43:26,884 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 06:43:26,884 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 426 transitions. [2023-11-30 06:43:26,885 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 106.5) internal successors, (426), 4 states have internal predecessors, (426), 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 06:43:26,886 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 120.0) internal successors, (600), 5 states have internal predecessors, (600), 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 06:43:26,886 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 120.0) internal successors, (600), 5 states have internal predecessors, (600), 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 06:43:26,887 INFO L307 CegarLoopForPetriNet]: 124 programPoint places, 2 predicate places. [2023-11-30 06:43:26,887 INFO L500 AbstractCegarLoop]: Abstraction has has 126 places, 133 transitions, 542 flow [2023-11-30 06:43:26,888 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 97.25) internal successors, (389), 4 states have internal predecessors, (389), 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 06:43:26,888 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 06:43:26,888 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] [2023-11-30 06:43:26,888 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-30 06:43:26,888 INFO L425 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-30 06:43:26,889 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 06:43:26,889 INFO L85 PathProgramCache]: Analyzing trace with hash -1881885601, now seen corresponding path program 1 times [2023-11-30 06:43:26,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 06:43:26,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031727769] [2023-11-30 06:43:26,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 06:43:26,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 06:43:26,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 06:43:27,017 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 06:43:27,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 06:43:27,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031727769] [2023-11-30 06:43:27,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1031727769] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 06:43:27,018 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 06:43:27,018 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-30 06:43:27,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071203937] [2023-11-30 06:43:27,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 06:43:27,019 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-30 06:43:27,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 06:43:27,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-30 06:43:27,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-30 06:43:27,024 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 120 [2023-11-30 06:43:27,025 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 133 transitions, 542 flow. Second operand has 5 states, 5 states have (on average 97.4) internal successors, (487), 5 states have internal predecessors, (487), 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 06:43:27,025 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 06:43:27,025 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 120 [2023-11-30 06:43:27,025 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 06:43:27,232 INFO L124 PetriNetUnfolderBase]: 364/1443 cut-off events. [2023-11-30 06:43:27,233 INFO L125 PetriNetUnfolderBase]: For 577/1019 co-relation queries the response was YES. [2023-11-30 06:43:27,235 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3741 conditions, 1443 events. 364/1443 cut-off events. For 577/1019 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 10762 event pairs, 126 based on Foata normal form. 39/1417 useless extension candidates. Maximal degree in co-relation 3684. Up to 381 conditions per place. [2023-11-30 06:43:27,237 INFO L140 encePairwiseOnDemand]: 113/120 looper letters, 0 selfloop transitions, 0 changer transitions 133/133 dead transitions. [2023-11-30 06:43:27,237 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 133 transitions, 628 flow [2023-11-30 06:43:27,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-30 06:43:27,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-30 06:43:27,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 521 transitions. [2023-11-30 06:43:27,239 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8683333333333333 [2023-11-30 06:43:27,239 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 521 transitions. [2023-11-30 06:43:27,240 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 521 transitions. [2023-11-30 06:43:27,240 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 06:43:27,240 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 521 transitions. [2023-11-30 06:43:27,241 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 104.2) internal successors, (521), 5 states have internal predecessors, (521), 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 06:43:27,242 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 120.0) internal successors, (720), 6 states have internal predecessors, (720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 06:43:27,242 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 120.0) internal successors, (720), 6 states have internal predecessors, (720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 06:43:27,244 INFO L307 CegarLoopForPetriNet]: 124 programPoint places, 3 predicate places. [2023-11-30 06:43:27,244 INFO L500 AbstractCegarLoop]: Abstraction has has 127 places, 133 transitions, 628 flow [2023-11-30 06:43:27,244 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 97.4) internal successors, (487), 5 states have internal predecessors, (487), 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 06:43:27,250 INFO L143 wickiGriesTestDumper]: Dumping Owicki-Gries test to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/rfi006_pso.oepc_pso.opt_tso.oepc_tso.opt.i_BEv2_AllErrorsAtOnce [2023-11-30 06:43:27,275 INFO L810 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 15 remaining) [2023-11-30 06:43:27,275 INFO L810 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 15 remaining) [2023-11-30 06:43:27,275 INFO L810 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 15 remaining) [2023-11-30 06:43:27,276 INFO L810 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 15 remaining) [2023-11-30 06:43:27,276 INFO L810 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 15 remaining) [2023-11-30 06:43:27,276 INFO L810 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 15 remaining) [2023-11-30 06:43:27,276 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 15 remaining) [2023-11-30 06:43:27,276 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 15 remaining) [2023-11-30 06:43:27,276 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 15 remaining) [2023-11-30 06:43:27,276 INFO L810 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 15 remaining) [2023-11-30 06:43:27,276 INFO L810 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 15 remaining) [2023-11-30 06:43:27,277 INFO L810 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 15 remaining) [2023-11-30 06:43:27,277 INFO L810 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 15 remaining) [2023-11-30 06:43:27,277 INFO L810 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 15 remaining) [2023-11-30 06:43:27,277 INFO L810 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 15 remaining) [2023-11-30 06:43:27,277 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-30 06:43:27,277 INFO L457 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-11-30 06:43:27,281 INFO L222 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-30 06:43:27,281 INFO L172 ceAbstractionStarter]: Computing trace abstraction results [2023-11-30 06:43:27,289 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 06:43:27 BasicIcfg [2023-11-30 06:43:27,289 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-30 06:43:27,290 INFO L158 Benchmark]: Toolchain (without parser) took 3271.72ms. Allocated memory was 669.0MB in the beginning and 926.9MB in the end (delta: 257.9MB). Free memory was 611.2MB in the beginning and 672.4MB in the end (delta: -61.2MB). Peak memory consumption was 198.9MB. Max. memory is 16.0GB. [2023-11-30 06:43:27,290 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 381.7MB. Free memory is still 327.4MB. There was no memory consumed. Max. memory is 16.0GB. [2023-11-30 06:43:27,290 INFO L158 Benchmark]: CACSL2BoogieTranslator took 409.81ms. Allocated memory is still 669.0MB. Free memory was 610.8MB in the beginning and 586.3MB in the end (delta: 24.5MB). Peak memory consumption was 23.1MB. Max. memory is 16.0GB. [2023-11-30 06:43:27,290 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.81ms. Allocated memory is still 669.0MB. Free memory was 586.3MB in the beginning and 583.2MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. [2023-11-30 06:43:27,294 INFO L158 Benchmark]: Boogie Preprocessor took 34.40ms. Allocated memory is still 669.0MB. Free memory was 583.2MB in the beginning and 581.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-11-30 06:43:27,294 INFO L158 Benchmark]: RCFGBuilder took 545.64ms. Allocated memory is still 669.0MB. Free memory was 580.8MB in the beginning and 604.5MB in the end (delta: -23.6MB). Peak memory consumption was 27.8MB. Max. memory is 16.0GB. [2023-11-30 06:43:27,294 INFO L158 Benchmark]: TraceAbstraction took 2239.34ms. Allocated memory was 669.0MB in the beginning and 926.9MB in the end (delta: 257.9MB). Free memory was 603.3MB in the beginning and 672.4MB in the end (delta: -69.0MB). Peak memory consumption was 187.8MB. Max. memory is 16.0GB. [2023-11-30 06:43:27,295 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 381.7MB. Free memory is still 327.4MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 409.81ms. Allocated memory is still 669.0MB. Free memory was 610.8MB in the beginning and 586.3MB in the end (delta: 24.5MB). Peak memory consumption was 23.1MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 38.81ms. Allocated memory is still 669.0MB. Free memory was 586.3MB in the beginning and 583.2MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. * Boogie Preprocessor took 34.40ms. Allocated memory is still 669.0MB. Free memory was 583.2MB in the beginning and 581.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 545.64ms. Allocated memory is still 669.0MB. Free memory was 580.8MB in the beginning and 604.5MB in the end (delta: -23.6MB). Peak memory consumption was 27.8MB. Max. memory is 16.0GB. * TraceAbstraction took 2239.34ms. Allocated memory was 669.0MB in the beginning and 926.9MB in the end (delta: 257.9MB). Free memory was 603.3MB in the beginning and 672.4MB in the end (delta: -69.0MB). Peak memory consumption was 187.8MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 756]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 756]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 801]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 801]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 818]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 818]: 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 7 procedures, 151 locations, 15 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: 2.1s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 64 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 64 mSDsluCounter, 4 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 22 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 197 IncrementalHoareTripleChecker+Invalid, 219 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 22 mSolverCounterUnsat, 4 mSDtfsCounter, 197 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=628occurred in iteration=4, InterpolantAutomatonStates: 16, 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, 0.5s InterpolantComputationTime, 226 NumberOfCodeBlocks, 226 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 222 ConstructedInterpolants, 0 QuantifiedInterpolants, 618 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-30 06:43:27,310 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...