/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/safe034_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.empire-owicki-175f719-m [2023-11-30 06:45:53,013 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-30 06:45:53,052 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 06:45:53,076 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-30 06:45:53,077 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-30 06:45:53,077 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-30 06:45:53,078 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-30 06:45:53,078 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-30 06:45:53,078 INFO L153 SettingsManager]: * Use SBE=true [2023-11-30 06:45:53,081 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-30 06:45:53,081 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-30 06:45:53,081 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-30 06:45:53,081 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-30 06:45:53,082 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-30 06:45:53,082 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-30 06:45:53,083 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-30 06:45:53,083 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-30 06:45:53,083 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-30 06:45:53,083 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-30 06:45:53,083 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-30 06:45:53,083 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-30 06:45:53,086 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-30 06:45:53,086 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-30 06:45:53,086 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-11-30 06:45:53,087 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-30 06:45:53,087 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-30 06:45:53,087 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-30 06:45:53,087 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-30 06:45:53,087 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-30 06:45:53,087 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-30 06:45:53,087 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-30 06:45:53,087 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-30 06:45:53,088 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-30 06:45:53,088 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2023-11-30 06:45:53,226 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-30 06:45:53,241 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-30 06:45:53,243 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-30 06:45:53,244 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-30 06:45:53,244 INFO L274 PluginConnector]: CDTParser initialized [2023-11-30 06:45:53,245 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe034_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i [2023-11-30 06:45:54,225 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-30 06:45:54,390 INFO L384 CDTParser]: Found 1 translation units. [2023-11-30 06:45:54,390 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe034_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i [2023-11-30 06:45:54,405 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9eab4abfe/75f7ee3c96d94bb090d08ea3fc226152/FLAG3ed2f26fa [2023-11-30 06:45:54,419 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9eab4abfe/75f7ee3c96d94bb090d08ea3fc226152 [2023-11-30 06:45:54,421 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-30 06:45:54,422 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-11-30 06:45:54,425 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-30 06:45:54,425 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-30 06:45:54,428 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-30 06:45:54,429 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 06:45:54" (1/1) ... [2023-11-30 06:45:54,430 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@375321f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 06:45:54, skipping insertion in model container [2023-11-30 06:45:54,430 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 06:45:54" (1/1) ... [2023-11-30 06:45:54,472 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-30 06:45:54,770 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-30 06:45:54,780 INFO L202 MainTranslator]: Completed pre-run [2023-11-30 06:45:54,832 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-30 06:45:54,857 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-30 06:45:54,857 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-30 06:45:54,862 INFO L206 MainTranslator]: Completed translation [2023-11-30 06:45:54,863 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 06:45:54 WrapperNode [2023-11-30 06:45:54,863 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-30 06:45:54,864 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-30 06:45:54,864 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-30 06:45:54,864 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-30 06:45:54,869 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 06:45:54" (1/1) ... [2023-11-30 06:45:54,893 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 06:45:54" (1/1) ... [2023-11-30 06:45:54,910 INFO L138 Inliner]: procedures = 176, calls = 59, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 135 [2023-11-30 06:45:54,910 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-30 06:45:54,910 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-30 06:45:54,910 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-30 06:45:54,911 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-30 06:45:54,916 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 06:45:54" (1/1) ... [2023-11-30 06:45:54,916 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 06:45:54" (1/1) ... [2023-11-30 06:45:54,918 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 06:45:54" (1/1) ... [2023-11-30 06:45:54,918 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 06:45:54" (1/1) ... [2023-11-30 06:45:54,924 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 06:45:54" (1/1) ... [2023-11-30 06:45:54,925 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 06:45:54" (1/1) ... [2023-11-30 06:45:54,926 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 06:45:54" (1/1) ... [2023-11-30 06:45:54,927 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 06:45:54" (1/1) ... [2023-11-30 06:45:54,929 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-30 06:45:54,930 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-30 06:45:54,930 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-30 06:45:54,930 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-30 06:45:54,931 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 06:45:54" (1/1) ... [2023-11-30 06:45:54,934 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-30 06:45:54,944 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 06:45:54,952 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 06:45:54,956 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 06:45:54,980 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-30 06:45:54,980 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-30 06:45:54,981 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-30 06:45:54,981 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-30 06:45:54,981 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-30 06:45:54,981 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-11-30 06:45:54,982 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-11-30 06:45:54,982 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-11-30 06:45:54,982 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-11-30 06:45:54,982 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-11-30 06:45:54,982 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-11-30 06:45:54,982 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-30 06:45:54,982 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-30 06:45:54,983 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-30 06:45:54,983 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-30 06:45:54,984 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 06:45:55,091 INFO L241 CfgBuilder]: Building ICFG [2023-11-30 06:45:55,093 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-30 06:45:55,272 INFO L282 CfgBuilder]: Performing block encoding [2023-11-30 06:45:55,356 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-30 06:45:55,356 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-30 06:45:55,357 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 06:45:55 BoogieIcfgContainer [2023-11-30 06:45:55,357 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-30 06:45:55,359 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-30 06:45:55,359 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-30 06:45:55,364 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-30 06:45:55,364 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 06:45:54" (1/3) ... [2023-11-30 06:45:55,364 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@346d3f7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 06:45:55, skipping insertion in model container [2023-11-30 06:45:55,364 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 06:45:54" (2/3) ... [2023-11-30 06:45:55,365 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@346d3f7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 06:45:55, skipping insertion in model container [2023-11-30 06:45:55,365 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 06:45:55" (3/3) ... [2023-11-30 06:45:55,366 INFO L112 eAbstractionObserver]: Analyzing ICFG safe034_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i [2023-11-30 06:45:55,376 INFO L197 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-30 06:45:55,377 INFO L156 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-11-30 06:45:55,377 INFO L508 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-30 06:45:55,425 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-30 06:45:55,452 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 129 places, 122 transitions, 256 flow [2023-11-30 06:45:55,487 INFO L124 PetriNetUnfolderBase]: 3/119 cut-off events. [2023-11-30 06:45:55,487 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-30 06:45:55,494 INFO L83 FinitePrefix]: Finished finitePrefix Result has 129 conditions, 119 events. 3/119 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 96 event pairs, 0 based on Foata normal form. 0/110 useless extension candidates. Maximal degree in co-relation 84. Up to 2 conditions per place. [2023-11-30 06:45:55,495 INFO L82 GeneralOperation]: Start removeDead. Operand has 129 places, 122 transitions, 256 flow [2023-11-30 06:45:55,500 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 126 places, 119 transitions, 247 flow [2023-11-30 06:45:55,515 INFO L361 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-30 06:45:55,521 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;@432197f8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-30 06:45:55,521 INFO L363 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2023-11-30 06:45:55,541 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-30 06:45:55,541 INFO L124 PetriNetUnfolderBase]: 0/50 cut-off events. [2023-11-30 06:45:55,541 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-30 06:45:55,542 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 06:45:55,542 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] [2023-11-30 06:45:55,543 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 06:45:55,546 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 06:45:55,546 INFO L85 PathProgramCache]: Analyzing trace with hash 341907092, now seen corresponding path program 1 times [2023-11-30 06:45:55,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 06:45:55,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849286854] [2023-11-30 06:45:55,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 06:45:55,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 06:45:55,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 06:45:55,813 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 06:45:55,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 06:45:55,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849286854] [2023-11-30 06:45:55,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [849286854] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 06:45:55,814 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 06:45:55,814 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-30 06:45:55,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59109469] [2023-11-30 06:45:55,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 06:45:55,823 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-30 06:45:55,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 06:45:55,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-30 06:45:55,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-30 06:45:55,845 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 122 [2023-11-30 06:45:55,848 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 119 transitions, 247 flow. Second operand has 3 states, 3 states have (on average 101.0) internal successors, (303), 3 states have internal predecessors, (303), 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 06:45:55,848 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 06:45:55,848 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 122 [2023-11-30 06:45:55,848 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 06:45:56,071 INFO L124 PetriNetUnfolderBase]: 319/853 cut-off events. [2023-11-30 06:45:56,071 INFO L125 PetriNetUnfolderBase]: For 13/13 co-relation queries the response was YES. [2023-11-30 06:45:56,077 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1414 conditions, 853 events. 319/853 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 86. Compared 5668 event pairs, 209 based on Foata normal form. 102/745 useless extension candidates. Maximal degree in co-relation 1366. Up to 492 conditions per place. [2023-11-30 06:45:56,083 INFO L140 encePairwiseOnDemand]: 109/122 looper letters, 24 selfloop transitions, 4 changer transitions 0/123 dead transitions. [2023-11-30 06:45:56,084 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 123 transitions, 317 flow [2023-11-30 06:45:56,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-30 06:45:56,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-30 06:45:56,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 340 transitions. [2023-11-30 06:45:56,097 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.9289617486338798 [2023-11-30 06:45:56,098 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 340 transitions. [2023-11-30 06:45:56,098 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 340 transitions. [2023-11-30 06:45:56,100 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 06:45:56,101 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 340 transitions. [2023-11-30 06:45:56,104 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 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 06:45:56,107 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 122.0) internal successors, (488), 4 states have internal predecessors, (488), 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 06:45:56,107 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 122.0) internal successors, (488), 4 states have internal predecessors, (488), 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 06:45:56,111 INFO L307 CegarLoopForPetriNet]: 126 programPoint places, -1 predicate places. [2023-11-30 06:45:56,112 INFO L500 AbstractCegarLoop]: Abstraction has has 125 places, 123 transitions, 317 flow [2023-11-30 06:45:56,112 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 101.0) internal successors, (303), 3 states have internal predecessors, (303), 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 06:45:56,112 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 06:45:56,113 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] [2023-11-30 06:45:56,113 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-30 06:45:56,113 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 06:45:56,114 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 06:45:56,114 INFO L85 PathProgramCache]: Analyzing trace with hash -55353113, now seen corresponding path program 1 times [2023-11-30 06:45:56,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 06:45:56,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757450789] [2023-11-30 06:45:56,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 06:45:56,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 06:45:56,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 06:45:56,304 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 06:45:56,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 06:45:56,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [757450789] [2023-11-30 06:45:56,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [757450789] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 06:45:56,305 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 06:45:56,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-30 06:45:56,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771986501] [2023-11-30 06:45:56,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 06:45:56,306 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-30 06:45:56,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 06:45:56,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-30 06:45:56,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-30 06:45:56,307 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 122 [2023-11-30 06:45:56,308 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 123 transitions, 317 flow. Second operand has 4 states, 4 states have (on average 101.5) internal successors, (406), 4 states have internal predecessors, (406), 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 06:45:56,308 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 06:45:56,308 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 122 [2023-11-30 06:45:56,308 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 06:45:56,468 INFO L124 PetriNetUnfolderBase]: 206/571 cut-off events. [2023-11-30 06:45:56,468 INFO L125 PetriNetUnfolderBase]: For 45/107 co-relation queries the response was YES. [2023-11-30 06:45:56,471 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1285 conditions, 571 events. 206/571 cut-off events. For 45/107 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 3370 event pairs, 38 based on Foata normal form. 4/501 useless extension candidates. Maximal degree in co-relation 1234. Up to 305 conditions per place. [2023-11-30 06:45:56,474 INFO L140 encePairwiseOnDemand]: 115/122 looper letters, 21 selfloop transitions, 4 changer transitions 0/120 dead transitions. [2023-11-30 06:45:56,474 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 120 transitions, 355 flow [2023-11-30 06:45:56,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-30 06:45:56,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-30 06:45:56,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 428 transitions. [2023-11-30 06:45:56,476 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8770491803278688 [2023-11-30 06:45:56,476 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 428 transitions. [2023-11-30 06:45:56,476 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 428 transitions. [2023-11-30 06:45:56,476 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 06:45:56,476 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 428 transitions. [2023-11-30 06:45:56,477 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 107.0) internal successors, (428), 4 states have internal predecessors, (428), 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 06:45:56,479 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 122.0) internal successors, (610), 5 states have internal predecessors, (610), 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 06:45:56,479 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 122.0) internal successors, (610), 5 states have internal predecessors, (610), 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 06:45:56,480 INFO L307 CegarLoopForPetriNet]: 126 programPoint places, -1 predicate places. [2023-11-30 06:45:56,480 INFO L500 AbstractCegarLoop]: Abstraction has has 125 places, 120 transitions, 355 flow [2023-11-30 06:45:56,480 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 101.5) internal successors, (406), 4 states have internal predecessors, (406), 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 06:45:56,480 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 06:45:56,481 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] [2023-11-30 06:45:56,481 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-30 06:45:56,482 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 06:45:56,482 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 06:45:56,482 INFO L85 PathProgramCache]: Analyzing trace with hash -55353112, now seen corresponding path program 1 times [2023-11-30 06:45:56,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 06:45:56,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072662473] [2023-11-30 06:45:56,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 06:45:56,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 06:45:56,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 06:45:56,584 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 06:45:56,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 06:45:56,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1072662473] [2023-11-30 06:45:56,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1072662473] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 06:45:56,585 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 06:45:56,586 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-30 06:45:56,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753398531] [2023-11-30 06:45:56,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 06:45:56,587 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-30 06:45:56,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 06:45:56,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-30 06:45:56,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-30 06:45:56,591 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 122 [2023-11-30 06:45:56,592 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 120 transitions, 355 flow. Second operand has 4 states, 4 states have (on average 101.5) internal successors, (406), 4 states have internal predecessors, (406), 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 06:45:56,592 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 06:45:56,593 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 122 [2023-11-30 06:45:56,596 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 06:45:56,699 INFO L124 PetriNetUnfolderBase]: 129/633 cut-off events. [2023-11-30 06:45:56,700 INFO L125 PetriNetUnfolderBase]: For 106/196 co-relation queries the response was YES. [2023-11-30 06:45:56,701 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1315 conditions, 633 events. 129/633 cut-off events. For 106/196 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 3743 event pairs, 17 based on Foata normal form. 4/608 useless extension candidates. Maximal degree in co-relation 1261. Up to 181 conditions per place. [2023-11-30 06:45:56,703 INFO L140 encePairwiseOnDemand]: 115/122 looper letters, 24 selfloop transitions, 7 changer transitions 3/129 dead transitions. [2023-11-30 06:45:56,703 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 129 transitions, 480 flow [2023-11-30 06:45:56,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-30 06:45:56,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-30 06:45:56,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 437 transitions. [2023-11-30 06:45:56,705 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8954918032786885 [2023-11-30 06:45:56,705 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 437 transitions. [2023-11-30 06:45:56,705 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 437 transitions. [2023-11-30 06:45:56,705 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 06:45:56,705 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 437 transitions. [2023-11-30 06:45:56,706 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 109.25) internal successors, (437), 4 states have internal predecessors, (437), 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 06:45:56,706 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 122.0) internal successors, (610), 5 states have internal predecessors, (610), 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 06:45:56,707 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 122.0) internal successors, (610), 5 states have internal predecessors, (610), 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 06:45:56,708 INFO L307 CegarLoopForPetriNet]: 126 programPoint places, 2 predicate places. [2023-11-30 06:45:56,708 INFO L500 AbstractCegarLoop]: Abstraction has has 128 places, 129 transitions, 480 flow [2023-11-30 06:45:56,708 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 101.5) internal successors, (406), 4 states have internal predecessors, (406), 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 06:45:56,708 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 06:45:56,708 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] [2023-11-30 06:45:56,709 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-30 06:45:56,709 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 06:45:56,710 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 06:45:56,710 INFO L85 PathProgramCache]: Analyzing trace with hash -553384909, now seen corresponding path program 1 times [2023-11-30 06:45:56,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 06:45:56,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640540035] [2023-11-30 06:45:56,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 06:45:56,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 06:45:56,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 06:45:56,848 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 06:45:56,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 06:45:56,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [640540035] [2023-11-30 06:45:56,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [640540035] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 06:45:56,849 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 06:45:56,849 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-30 06:45:56,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763856638] [2023-11-30 06:45:56,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 06:45:56,850 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-30 06:45:56,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 06:45:56,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-30 06:45:56,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-30 06:45:56,855 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 122 [2023-11-30 06:45:56,855 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 129 transitions, 480 flow. Second operand has 5 states, 5 states have (on average 102.0) internal successors, (510), 5 states have internal predecessors, (510), 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 06:45:56,855 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 06:45:56,855 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 122 [2023-11-30 06:45:56,855 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 06:45:56,963 INFO L124 PetriNetUnfolderBase]: 123/465 cut-off events. [2023-11-30 06:45:56,963 INFO L125 PetriNetUnfolderBase]: For 372/656 co-relation queries the response was YES. [2023-11-30 06:45:56,964 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1307 conditions, 465 events. 123/465 cut-off events. For 372/656 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 2373 event pairs, 29 based on Foata normal form. 12/455 useless extension candidates. Maximal degree in co-relation 1250. Up to 166 conditions per place. [2023-11-30 06:45:56,965 INFO L140 encePairwiseOnDemand]: 115/122 looper letters, 0 selfloop transitions, 0 changer transitions 128/128 dead transitions. [2023-11-30 06:45:56,965 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 129 places, 128 transitions, 538 flow [2023-11-30 06:45:56,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-30 06:45:56,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-30 06:45:56,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 536 transitions. [2023-11-30 06:45:56,967 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8786885245901639 [2023-11-30 06:45:56,967 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 536 transitions. [2023-11-30 06:45:56,967 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 536 transitions. [2023-11-30 06:45:56,967 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 06:45:56,967 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 536 transitions. [2023-11-30 06:45:56,968 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 107.2) internal successors, (536), 5 states have internal predecessors, (536), 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 06:45:56,969 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 122.0) internal successors, (732), 6 states have internal predecessors, (732), 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 06:45:56,970 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 122.0) internal successors, (732), 6 states have internal predecessors, (732), 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 06:45:56,971 INFO L307 CegarLoopForPetriNet]: 126 programPoint places, 3 predicate places. [2023-11-30 06:45:56,971 INFO L500 AbstractCegarLoop]: Abstraction has has 129 places, 128 transitions, 538 flow [2023-11-30 06:45:56,972 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 102.0) internal successors, (510), 5 states have internal predecessors, (510), 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 06:45:56,977 INFO L143 wickiGriesTestDumper]: Dumping Owicki-Gries test to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/safe034_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i_BEv2_AllErrorsAtOnce [2023-11-30 06:45:56,994 INFO L810 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 15 remaining) [2023-11-30 06:45:56,994 INFO L810 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 15 remaining) [2023-11-30 06:45:56,994 INFO L810 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 15 remaining) [2023-11-30 06:45:56,994 INFO L810 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 15 remaining) [2023-11-30 06:45:56,995 INFO L810 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 15 remaining) [2023-11-30 06:45:56,995 INFO L810 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 15 remaining) [2023-11-30 06:45:56,995 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 15 remaining) [2023-11-30 06:45:56,995 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 15 remaining) [2023-11-30 06:45:56,995 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 15 remaining) [2023-11-30 06:45:56,995 INFO L810 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 15 remaining) [2023-11-30 06:45:56,995 INFO L810 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 15 remaining) [2023-11-30 06:45:56,995 INFO L810 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 15 remaining) [2023-11-30 06:45:56,995 INFO L810 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 15 remaining) [2023-11-30 06:45:56,995 INFO L810 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 15 remaining) [2023-11-30 06:45:56,995 INFO L810 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 15 remaining) [2023-11-30 06:45:56,996 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-30 06:45:56,996 INFO L457 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-11-30 06:45:57,000 INFO L222 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-30 06:45:57,000 INFO L172 ceAbstractionStarter]: Computing trace abstraction results [2023-11-30 06:45:57,008 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 06:45:57 BasicIcfg [2023-11-30 06:45:57,008 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-30 06:45:57,008 INFO L158 Benchmark]: Toolchain (without parser) took 2586.33ms. Allocated memory is still 631.2MB. Free memory was 584.7MB in the beginning and 551.3MB in the end (delta: 33.4MB). Peak memory consumption was 159.0MB. Max. memory is 16.0GB. [2023-11-30 06:45:57,009 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 354.4MB. Free memory was 303.0MB in the beginning and 302.9MB in the end (delta: 132.8kB). There was no memory consumed. Max. memory is 16.0GB. [2023-11-30 06:45:57,009 INFO L158 Benchmark]: CACSL2BoogieTranslator took 438.41ms. Allocated memory is still 631.2MB. Free memory was 584.3MB in the beginning and 561.6MB in the end (delta: 22.7MB). Peak memory consumption was 23.1MB. Max. memory is 16.0GB. [2023-11-30 06:45:57,009 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.82ms. Allocated memory is still 631.2MB. Free memory was 561.6MB in the beginning and 559.0MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-11-30 06:45:57,012 INFO L158 Benchmark]: Boogie Preprocessor took 19.06ms. Allocated memory is still 631.2MB. Free memory was 559.0MB in the beginning and 557.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-11-30 06:45:57,012 INFO L158 Benchmark]: RCFGBuilder took 427.60ms. Allocated memory is still 631.2MB. Free memory was 557.2MB in the beginning and 589.7MB in the end (delta: -32.4MB). Peak memory consumption was 35.7MB. Max. memory is 16.0GB. [2023-11-30 06:45:57,012 INFO L158 Benchmark]: TraceAbstraction took 1649.31ms. Allocated memory is still 631.2MB. Free memory was 588.6MB in the beginning and 551.3MB in the end (delta: 37.3MB). Peak memory consumption was 161.0MB. Max. memory is 16.0GB. [2023-11-30 06:45:57,013 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 354.4MB. Free memory was 303.0MB in the beginning and 302.9MB in the end (delta: 132.8kB). There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 438.41ms. Allocated memory is still 631.2MB. Free memory was 584.3MB in the beginning and 561.6MB in the end (delta: 22.7MB). Peak memory consumption was 23.1MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 45.82ms. Allocated memory is still 631.2MB. Free memory was 561.6MB in the beginning and 559.0MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 19.06ms. Allocated memory is still 631.2MB. Free memory was 559.0MB in the beginning and 557.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 427.60ms. Allocated memory is still 631.2MB. Free memory was 557.2MB in the beginning and 589.7MB in the end (delta: -32.4MB). Peak memory consumption was 35.7MB. Max. memory is 16.0GB. * TraceAbstraction took 1649.31ms. Allocated memory is still 631.2MB. Free memory was 588.6MB in the beginning and 551.3MB in the end (delta: 37.3MB). Peak memory consumption was 161.0MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 753]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 753]: 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: 783]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 812]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 812]: 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, 155 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: 1.5s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 49 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 49 mSDsluCounter, 4 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 22 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 160 IncrementalHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 22 mSolverCounterUnsat, 4 mSDtfsCounter, 160 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=538occurred 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, 231 NumberOfCodeBlocks, 231 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 227 ConstructedInterpolants, 0 QuantifiedInterpolants, 633 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 06:45:57,030 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...