/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/safe009_power.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.empire-owicki-175f719-m [2023-11-30 06:44:11,735 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-30 06:44:11,799 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 06:44:11,823 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-30 06:44:11,824 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-30 06:44:11,824 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-30 06:44:11,825 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-30 06:44:11,825 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-30 06:44:11,825 INFO L153 SettingsManager]: * Use SBE=true [2023-11-30 06:44:11,828 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-30 06:44:11,828 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-30 06:44:11,828 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-30 06:44:11,829 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-30 06:44:11,829 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-30 06:44:11,830 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-30 06:44:11,830 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-30 06:44:11,830 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-30 06:44:11,830 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-30 06:44:11,830 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-30 06:44:11,830 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-30 06:44:11,831 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-30 06:44:11,831 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-30 06:44:11,831 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-30 06:44:11,831 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-11-30 06:44:11,832 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-30 06:44:11,833 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-30 06:44:11,833 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-30 06:44:11,833 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-30 06:44:11,833 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-30 06:44:11,833 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-30 06:44:11,834 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-30 06:44:11,834 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-30 06:44:11,834 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-30 06:44:11,834 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2023-11-30 06:44:12,009 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-30 06:44:12,032 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-30 06:44:12,034 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-30 06:44:12,034 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-30 06:44:12,035 INFO L274 PluginConnector]: CDTParser initialized [2023-11-30 06:44:12,035 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe009_power.oepc.i [2023-11-30 06:44:13,076 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-30 06:44:13,254 INFO L384 CDTParser]: Found 1 translation units. [2023-11-30 06:44:13,254 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe009_power.oepc.i [2023-11-30 06:44:13,276 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1ee7f83ab/d8b5ff0862c6475ebd59a7d76299f8ce/FLAG9dccfd02a [2023-11-30 06:44:13,285 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1ee7f83ab/d8b5ff0862c6475ebd59a7d76299f8ce [2023-11-30 06:44:13,286 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-30 06:44:13,287 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-11-30 06:44:13,288 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-30 06:44:13,288 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-30 06:44:13,296 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-30 06:44:13,296 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 06:44:13" (1/1) ... [2023-11-30 06:44:13,297 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@236e477 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 06:44:13, skipping insertion in model container [2023-11-30 06:44:13,297 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 06:44:13" (1/1) ... [2023-11-30 06:44:13,374 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-30 06:44:13,688 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-30 06:44:13,698 INFO L202 MainTranslator]: Completed pre-run [2023-11-30 06:44:13,750 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-30 06:44:13,770 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-30 06:44:13,770 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-30 06:44:13,774 INFO L206 MainTranslator]: Completed translation [2023-11-30 06:44:13,775 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 06:44:13 WrapperNode [2023-11-30 06:44:13,775 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-30 06:44:13,775 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-30 06:44:13,775 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-30 06:44:13,776 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-30 06:44:13,781 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 06:44:13" (1/1) ... [2023-11-30 06:44:13,805 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 06:44:13" (1/1) ... [2023-11-30 06:44:13,836 INFO L138 Inliner]: procedures = 176, calls = 77, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 171 [2023-11-30 06:44:13,836 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-30 06:44:13,837 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-30 06:44:13,837 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-30 06:44:13,837 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-30 06:44:13,842 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 06:44:13" (1/1) ... [2023-11-30 06:44:13,843 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 06:44:13" (1/1) ... [2023-11-30 06:44:13,853 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 06:44:13" (1/1) ... [2023-11-30 06:44:13,854 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 06:44:13" (1/1) ... [2023-11-30 06:44:13,862 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 06:44:13" (1/1) ... [2023-11-30 06:44:13,863 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 06:44:13" (1/1) ... [2023-11-30 06:44:13,865 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 06:44:13" (1/1) ... [2023-11-30 06:44:13,866 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 06:44:13" (1/1) ... [2023-11-30 06:44:13,883 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-30 06:44:13,884 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-30 06:44:13,884 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-30 06:44:13,884 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-30 06:44:13,884 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 06:44:13" (1/1) ... [2023-11-30 06:44:13,891 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-30 06:44:13,897 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 06:44:13,921 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 06:44:13,923 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 06:44:13,940 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-30 06:44:13,940 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-30 06:44:13,940 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-30 06:44:13,940 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-30 06:44:13,940 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-30 06:44:13,940 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-30 06:44:13,941 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-11-30 06:44:13,941 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-11-30 06:44:13,941 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-11-30 06:44:13,942 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-11-30 06:44:13,942 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-11-30 06:44:13,942 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-11-30 06:44:13,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-30 06:44:13,942 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-30 06:44:13,942 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-30 06:44:13,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-30 06:44:13,943 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 06:44:14,063 INFO L241 CfgBuilder]: Building ICFG [2023-11-30 06:44:14,065 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-30 06:44:14,410 INFO L282 CfgBuilder]: Performing block encoding [2023-11-30 06:44:14,629 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-30 06:44:14,629 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-30 06:44:14,630 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 06:44:14 BoogieIcfgContainer [2023-11-30 06:44:14,630 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-30 06:44:14,632 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-30 06:44:14,632 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-30 06:44:14,634 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-30 06:44:14,634 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 06:44:13" (1/3) ... [2023-11-30 06:44:14,635 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1be6a58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 06:44:14, skipping insertion in model container [2023-11-30 06:44:14,635 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 06:44:13" (2/3) ... [2023-11-30 06:44:14,635 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1be6a58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 06:44:14, skipping insertion in model container [2023-11-30 06:44:14,635 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 06:44:14" (3/3) ... [2023-11-30 06:44:14,636 INFO L112 eAbstractionObserver]: Analyzing ICFG safe009_power.oepc.i [2023-11-30 06:44:14,647 INFO L197 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-30 06:44:14,647 INFO L156 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-11-30 06:44:14,648 INFO L508 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-30 06:44:14,698 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-30 06:44:14,721 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 144 places, 137 transitions, 286 flow [2023-11-30 06:44:14,778 INFO L124 PetriNetUnfolderBase]: 3/134 cut-off events. [2023-11-30 06:44:14,778 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-30 06:44:14,783 INFO L83 FinitePrefix]: Finished finitePrefix Result has 144 conditions, 134 events. 3/134 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 77 event pairs, 0 based on Foata normal form. 0/125 useless extension candidates. Maximal degree in co-relation 81. Up to 2 conditions per place. [2023-11-30 06:44:14,783 INFO L82 GeneralOperation]: Start removeDead. Operand has 144 places, 137 transitions, 286 flow [2023-11-30 06:44:14,789 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 141 places, 134 transitions, 277 flow [2023-11-30 06:44:14,801 INFO L361 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-30 06:44:14,806 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;@2c70a3a0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-30 06:44:14,806 INFO L363 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2023-11-30 06:44:14,816 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-30 06:44:14,816 INFO L124 PetriNetUnfolderBase]: 0/66 cut-off events. [2023-11-30 06:44:14,816 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-30 06:44:14,816 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 06:44:14,816 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 06:44:14,817 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 06:44:14,821 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 06:44:14,821 INFO L85 PathProgramCache]: Analyzing trace with hash 1960079328, now seen corresponding path program 1 times [2023-11-30 06:44:14,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 06:44:14,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654265095] [2023-11-30 06:44:14,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 06:44:14,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 06:44:14,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 06:44:15,111 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 06:44:15,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 06:44:15,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1654265095] [2023-11-30 06:44:15,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1654265095] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 06:44:15,112 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 06:44:15,112 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-30 06:44:15,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662356269] [2023-11-30 06:44:15,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 06:44:15,118 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-30 06:44:15,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 06:44:15,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-30 06:44:15,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-30 06:44:15,138 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 137 [2023-11-30 06:44:15,140 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 134 transitions, 277 flow. Second operand has 3 states, 3 states have (on average 113.33333333333333) internal successors, (340), 3 states have internal predecessors, (340), 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 06:44:15,140 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 06:44:15,140 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 137 [2023-11-30 06:44:15,141 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 06:44:15,657 INFO L124 PetriNetUnfolderBase]: 718/3224 cut-off events. [2023-11-30 06:44:15,657 INFO L125 PetriNetUnfolderBase]: For 20/20 co-relation queries the response was YES. [2023-11-30 06:44:15,663 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4399 conditions, 3224 events. 718/3224 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 143. Compared 31438 event pairs, 485 based on Foata normal form. 269/3081 useless extension candidates. Maximal degree in co-relation 4333. Up to 927 conditions per place. [2023-11-30 06:44:15,672 INFO L140 encePairwiseOnDemand]: 124/137 looper letters, 30 selfloop transitions, 4 changer transitions 0/141 dead transitions. [2023-11-30 06:44:15,673 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 141 transitions, 365 flow [2023-11-30 06:44:15,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-30 06:44:15,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-30 06:44:15,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 382 transitions. [2023-11-30 06:44:15,682 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.9294403892944039 [2023-11-30 06:44:15,682 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 382 transitions. [2023-11-30 06:44:15,682 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 382 transitions. [2023-11-30 06:44:15,683 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 06:44:15,684 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 382 transitions. [2023-11-30 06:44:15,687 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 127.33333333333333) internal successors, (382), 3 states have internal predecessors, (382), 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 06:44:15,689 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 137.0) internal successors, (548), 4 states have internal predecessors, (548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 06:44:15,690 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 137.0) internal successors, (548), 4 states have internal predecessors, (548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 06:44:15,692 INFO L307 CegarLoopForPetriNet]: 141 programPoint places, -1 predicate places. [2023-11-30 06:44:15,692 INFO L500 AbstractCegarLoop]: Abstraction has has 140 places, 141 transitions, 365 flow [2023-11-30 06:44:15,692 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 113.33333333333333) internal successors, (340), 3 states have internal predecessors, (340), 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 06:44:15,692 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 06:44:15,692 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 06:44:15,693 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-30 06:44:15,693 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 06:44:15,693 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 06:44:15,693 INFO L85 PathProgramCache]: Analyzing trace with hash -2074559859, now seen corresponding path program 1 times [2023-11-30 06:44:15,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 06:44:15,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1300320358] [2023-11-30 06:44:15,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 06:44:15,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 06:44:15,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 06:44:15,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 06:44:15,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 06:44:15,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1300320358] [2023-11-30 06:44:15,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1300320358] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 06:44:15,811 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 06:44:15,811 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-30 06:44:15,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712550637] [2023-11-30 06:44:15,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 06:44:15,812 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-30 06:44:15,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 06:44:15,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-30 06:44:15,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-30 06:44:15,814 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 137 [2023-11-30 06:44:15,814 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 141 transitions, 365 flow. Second operand has 4 states, 4 states have (on average 114.0) internal successors, (456), 4 states have internal predecessors, (456), 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 06:44:15,814 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 06:44:15,814 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 137 [2023-11-30 06:44:15,814 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 06:44:16,194 INFO L124 PetriNetUnfolderBase]: 532/2380 cut-off events. [2023-11-30 06:44:16,194 INFO L125 PetriNetUnfolderBase]: For 98/548 co-relation queries the response was YES. [2023-11-30 06:44:16,197 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4082 conditions, 2380 events. 532/2380 cut-off events. For 98/548 co-relation queries the response was YES. Maximal size of possible extension queue 102. Compared 21342 event pairs, 305 based on Foata normal form. 6/2172 useless extension candidates. Maximal degree in co-relation 4013. Up to 627 conditions per place. [2023-11-30 06:44:16,204 INFO L140 encePairwiseOnDemand]: 130/137 looper letters, 27 selfloop transitions, 4 changer transitions 0/138 dead transitions. [2023-11-30 06:44:16,204 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 138 transitions, 415 flow [2023-11-30 06:44:16,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-30 06:44:16,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-30 06:44:16,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 482 transitions. [2023-11-30 06:44:16,206 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8795620437956204 [2023-11-30 06:44:16,206 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 482 transitions. [2023-11-30 06:44:16,206 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 482 transitions. [2023-11-30 06:44:16,206 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 06:44:16,206 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 482 transitions. [2023-11-30 06:44:16,208 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 120.5) internal successors, (482), 4 states have internal predecessors, (482), 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 06:44:16,209 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 137.0) internal successors, (685), 5 states have internal predecessors, (685), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 06:44:16,209 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 137.0) internal successors, (685), 5 states have internal predecessors, (685), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 06:44:16,210 INFO L307 CegarLoopForPetriNet]: 141 programPoint places, -1 predicate places. [2023-11-30 06:44:16,210 INFO L500 AbstractCegarLoop]: Abstraction has has 140 places, 138 transitions, 415 flow [2023-11-30 06:44:16,210 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 114.0) internal successors, (456), 4 states have internal predecessors, (456), 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 06:44:16,210 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 06:44:16,210 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 06:44:16,210 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-30 06:44:16,210 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 06:44:16,211 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 06:44:16,211 INFO L85 PathProgramCache]: Analyzing trace with hash 1462803184, now seen corresponding path program 1 times [2023-11-30 06:44:16,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 06:44:16,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790507156] [2023-11-30 06:44:16,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 06:44:16,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 06:44:16,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 06:44:16,380 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 06:44:16,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 06:44:16,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [790507156] [2023-11-30 06:44:16,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [790507156] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 06:44:16,381 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 06:44:16,381 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-30 06:44:16,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322437352] [2023-11-30 06:44:16,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 06:44:16,382 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-30 06:44:16,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 06:44:16,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-30 06:44:16,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-30 06:44:16,383 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 137 [2023-11-30 06:44:16,383 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 138 transitions, 415 flow. Second operand has 4 states, 4 states have (on average 114.0) internal successors, (456), 4 states have internal predecessors, (456), 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 06:44:16,384 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 06:44:16,384 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 137 [2023-11-30 06:44:16,384 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 06:44:16,619 INFO L124 PetriNetUnfolderBase]: 397/1504 cut-off events. [2023-11-30 06:44:16,619 INFO L125 PetriNetUnfolderBase]: For 262/982 co-relation queries the response was YES. [2023-11-30 06:44:16,622 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3394 conditions, 1504 events. 397/1504 cut-off events. For 262/982 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 11209 event pairs, 177 based on Foata normal form. 6/1423 useless extension candidates. Maximal degree in co-relation 3322. Up to 414 conditions per place. [2023-11-30 06:44:16,629 INFO L140 encePairwiseOnDemand]: 130/137 looper letters, 33 selfloop transitions, 7 changer transitions 3/150 dead transitions. [2023-11-30 06:44:16,629 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 150 transitions, 576 flow [2023-11-30 06:44:16,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-30 06:44:16,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-30 06:44:16,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 494 transitions. [2023-11-30 06:44:16,631 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.9014598540145985 [2023-11-30 06:44:16,631 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 494 transitions. [2023-11-30 06:44:16,631 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 494 transitions. [2023-11-30 06:44:16,632 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 06:44:16,632 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 494 transitions. [2023-11-30 06:44:16,633 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 123.5) internal successors, (494), 4 states have internal predecessors, (494), 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 06:44:16,634 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 137.0) internal successors, (685), 5 states have internal predecessors, (685), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 06:44:16,634 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 137.0) internal successors, (685), 5 states have internal predecessors, (685), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 06:44:16,634 INFO L307 CegarLoopForPetriNet]: 141 programPoint places, 2 predicate places. [2023-11-30 06:44:16,635 INFO L500 AbstractCegarLoop]: Abstraction has has 143 places, 150 transitions, 576 flow [2023-11-30 06:44:16,635 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 114.0) internal successors, (456), 4 states have internal predecessors, (456), 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 06:44:16,635 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 06:44:16,635 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 06:44:16,635 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-30 06:44:16,635 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 06:44:16,636 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 06:44:16,636 INFO L85 PathProgramCache]: Analyzing trace with hash 2028298464, now seen corresponding path program 1 times [2023-11-30 06:44:16,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 06:44:16,636 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947055733] [2023-11-30 06:44:16,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 06:44:16,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 06:44:16,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 06:44:16,745 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 06:44:16,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 06:44:16,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947055733] [2023-11-30 06:44:16,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1947055733] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 06:44:16,746 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 06:44:16,746 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-30 06:44:16,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674314341] [2023-11-30 06:44:16,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 06:44:16,746 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-30 06:44:16,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 06:44:16,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-30 06:44:16,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-30 06:44:16,748 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 137 [2023-11-30 06:44:16,748 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 150 transitions, 576 flow. Second operand has 5 states, 5 states have (on average 114.4) internal successors, (572), 5 states have internal predecessors, (572), 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 06:44:16,748 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 06:44:16,748 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 137 [2023-11-30 06:44:16,748 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 06:44:16,989 INFO L124 PetriNetUnfolderBase]: 388/1573 cut-off events. [2023-11-30 06:44:16,989 INFO L125 PetriNetUnfolderBase]: For 493/1539 co-relation queries the response was YES. [2023-11-30 06:44:16,991 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3997 conditions, 1573 events. 388/1573 cut-off events. For 493/1539 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 12025 event pairs, 177 based on Foata normal form. 14/1506 useless extension candidates. Maximal degree in co-relation 3922. Up to 393 conditions per place. [2023-11-30 06:44:16,993 INFO L140 encePairwiseOnDemand]: 130/137 looper letters, 0 selfloop transitions, 0 changer transitions 150/150 dead transitions. [2023-11-30 06:44:16,993 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 150 transitions, 662 flow [2023-11-30 06:44:16,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-30 06:44:16,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-30 06:44:16,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 606 transitions. [2023-11-30 06:44:16,995 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8846715328467153 [2023-11-30 06:44:16,995 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 606 transitions. [2023-11-30 06:44:16,995 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 606 transitions. [2023-11-30 06:44:16,995 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 06:44:16,995 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 606 transitions. [2023-11-30 06:44:16,996 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 121.2) internal successors, (606), 5 states have internal predecessors, (606), 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 06:44:16,997 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 137.0) internal successors, (822), 6 states have internal predecessors, (822), 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 06:44:16,998 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 137.0) internal successors, (822), 6 states have internal predecessors, (822), 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 06:44:16,998 INFO L307 CegarLoopForPetriNet]: 141 programPoint places, 3 predicate places. [2023-11-30 06:44:16,998 INFO L500 AbstractCegarLoop]: Abstraction has has 144 places, 150 transitions, 662 flow [2023-11-30 06:44:16,999 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 114.4) internal successors, (572), 5 states have internal predecessors, (572), 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 06:44:17,004 INFO L143 wickiGriesTestDumper]: Dumping Owicki-Gries test to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/safe009_power.oepc.i_BEv2_AllErrorsAtOnce [2023-11-30 06:44:17,018 INFO L810 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 15 remaining) [2023-11-30 06:44:17,019 INFO L810 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 15 remaining) [2023-11-30 06:44:17,019 INFO L810 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 15 remaining) [2023-11-30 06:44:17,019 INFO L810 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 15 remaining) [2023-11-30 06:44:17,019 INFO L810 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 15 remaining) [2023-11-30 06:44:17,019 INFO L810 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 15 remaining) [2023-11-30 06:44:17,019 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 15 remaining) [2023-11-30 06:44:17,019 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 15 remaining) [2023-11-30 06:44:17,019 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 15 remaining) [2023-11-30 06:44:17,020 INFO L810 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 15 remaining) [2023-11-30 06:44:17,020 INFO L810 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 15 remaining) [2023-11-30 06:44:17,020 INFO L810 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 15 remaining) [2023-11-30 06:44:17,020 INFO L810 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 15 remaining) [2023-11-30 06:44:17,020 INFO L810 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 15 remaining) [2023-11-30 06:44:17,020 INFO L810 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 15 remaining) [2023-11-30 06:44:17,020 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-30 06:44:17,021 INFO L457 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-11-30 06:44:17,024 INFO L222 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-30 06:44:17,024 INFO L172 ceAbstractionStarter]: Computing trace abstraction results [2023-11-30 06:44:17,028 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 06:44:17 BasicIcfg [2023-11-30 06:44:17,028 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-30 06:44:17,028 INFO L158 Benchmark]: Toolchain (without parser) took 3741.49ms. Allocated memory was 413.1MB in the beginning and 532.7MB in the end (delta: 119.5MB). Free memory was 371.5MB in the beginning and 318.1MB in the end (delta: 53.4MB). Peak memory consumption was 312.8MB. Max. memory is 16.0GB. [2023-11-30 06:44:17,029 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 413.1MB. Free memory is still 368.9MB. There was no memory consumed. Max. memory is 16.0GB. [2023-11-30 06:44:17,029 INFO L158 Benchmark]: CACSL2BoogieTranslator took 487.38ms. Allocated memory is still 413.1MB. Free memory was 371.2MB in the beginning and 345.9MB in the end (delta: 25.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.0GB. [2023-11-30 06:44:17,029 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.80ms. Allocated memory is still 413.1MB. Free memory was 345.9MB in the beginning and 343.2MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. [2023-11-30 06:44:17,030 INFO L158 Benchmark]: Boogie Preprocessor took 46.53ms. Allocated memory is still 413.1MB. Free memory was 343.2MB in the beginning and 340.7MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-11-30 06:44:17,030 INFO L158 Benchmark]: RCFGBuilder took 746.54ms. Allocated memory was 413.1MB in the beginning and 532.7MB in the end (delta: 119.5MB). Free memory was 340.7MB in the beginning and 442.3MB in the end (delta: -101.6MB). Peak memory consumption was 39.7MB. Max. memory is 16.0GB. [2023-11-30 06:44:17,030 INFO L158 Benchmark]: TraceAbstraction took 2396.43ms. Allocated memory is still 532.7MB. Free memory was 441.2MB in the beginning and 318.1MB in the end (delta: 123.1MB). Peak memory consumption was 260.5MB. Max. memory is 16.0GB. [2023-11-30 06:44:17,032 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 413.1MB. Free memory is still 368.9MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 487.38ms. Allocated memory is still 413.1MB. Free memory was 371.2MB in the beginning and 345.9MB in the end (delta: 25.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 60.80ms. Allocated memory is still 413.1MB. Free memory was 345.9MB in the beginning and 343.2MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. * Boogie Preprocessor took 46.53ms. Allocated memory is still 413.1MB. Free memory was 343.2MB in the beginning and 340.7MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 746.54ms. Allocated memory was 413.1MB in the beginning and 532.7MB in the end (delta: 119.5MB). Free memory was 340.7MB in the beginning and 442.3MB in the end (delta: -101.6MB). Peak memory consumption was 39.7MB. Max. memory is 16.0GB. * TraceAbstraction took 2396.43ms. Allocated memory is still 532.7MB. Free memory was 441.2MB in the beginning and 318.1MB in the end (delta: 123.1MB). Peak memory consumption was 260.5MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 783]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 783]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 803]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 803]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 820]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 820]: 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, 167 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: 2.3s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 73 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 73 mSDsluCounter, 4 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 22 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 198 IncrementalHoareTripleChecker+Invalid, 220 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 22 mSolverCounterUnsat, 4 mSDtfsCounter, 198 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=662occurred 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, 295 NumberOfCodeBlocks, 295 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 291 ConstructedInterpolants, 0 QuantifiedInterpolants, 825 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 06:44:17,064 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...