/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/mix016_pso.opt_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.empire-owicki-175f719-m [2023-11-30 06:40:51,652 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-30 06:40:51,688 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 06:40:51,703 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-30 06:40:51,704 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-30 06:40:51,704 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-30 06:40:51,704 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-30 06:40:51,705 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-30 06:40:51,705 INFO L153 SettingsManager]: * Use SBE=true [2023-11-30 06:40:51,705 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-30 06:40:51,705 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-30 06:40:51,706 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-30 06:40:51,706 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-30 06:40:51,706 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-30 06:40:51,706 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-30 06:40:51,706 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-30 06:40:51,707 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-30 06:40:51,707 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-30 06:40:51,707 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-30 06:40:51,707 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-30 06:40:51,708 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-30 06:40:51,708 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-30 06:40:51,708 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-30 06:40:51,709 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-11-30 06:40:51,709 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-30 06:40:51,709 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-30 06:40:51,709 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-30 06:40:51,710 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-30 06:40:51,710 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-30 06:40:51,710 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-30 06:40:51,710 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-30 06:40:51,710 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-30 06:40:51,711 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-30 06:40:51,711 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2023-11-30 06:40:51,897 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-30 06:40:51,914 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-30 06:40:51,916 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-30 06:40:51,917 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-30 06:40:51,918 INFO L274 PluginConnector]: CDTParser initialized [2023-11-30 06:40:51,918 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix016_pso.opt_tso.opt.i [2023-11-30 06:40:52,914 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-30 06:40:53,137 INFO L384 CDTParser]: Found 1 translation units. [2023-11-30 06:40:53,137 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix016_pso.opt_tso.opt.i [2023-11-30 06:40:53,156 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8cf906625/26b21eb9ff4b445caa2b3b11d16efaa6/FLAGbea84d955 [2023-11-30 06:40:53,167 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8cf906625/26b21eb9ff4b445caa2b3b11d16efaa6 [2023-11-30 06:40:53,169 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-30 06:40:53,171 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-11-30 06:40:53,174 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-30 06:40:53,174 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-30 06:40:53,177 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-30 06:40:53,177 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 06:40:53" (1/1) ... [2023-11-30 06:40:53,178 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28595267 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 06:40:53, skipping insertion in model container [2023-11-30 06:40:53,179 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 06:40:53" (1/1) ... [2023-11-30 06:40:53,218 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-30 06:40:53,472 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-30 06:40:53,480 INFO L202 MainTranslator]: Completed pre-run [2023-11-30 06:40:53,524 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-30 06:40:53,543 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-30 06:40:53,543 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-30 06:40:53,548 INFO L206 MainTranslator]: Completed translation [2023-11-30 06:40:53,548 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 06:40:53 WrapperNode [2023-11-30 06:40:53,549 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-30 06:40:53,549 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-30 06:40:53,549 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-30 06:40:53,549 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-30 06:40:53,554 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 06:40:53" (1/1) ... [2023-11-30 06:40:53,563 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 06:40:53" (1/1) ... [2023-11-30 06:40:53,589 INFO L138 Inliner]: procedures = 176, calls = 57, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 157 [2023-11-30 06:40:53,591 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-30 06:40:53,592 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-30 06:40:53,592 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-30 06:40:53,592 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-30 06:40:53,598 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 06:40:53" (1/1) ... [2023-11-30 06:40:53,599 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 06:40:53" (1/1) ... [2023-11-30 06:40:53,609 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 06:40:53" (1/1) ... [2023-11-30 06:40:53,609 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 06:40:53" (1/1) ... [2023-11-30 06:40:53,615 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 06:40:53" (1/1) ... [2023-11-30 06:40:53,616 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 06:40:53" (1/1) ... [2023-11-30 06:40:53,617 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 06:40:53" (1/1) ... [2023-11-30 06:40:53,618 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 06:40:53" (1/1) ... [2023-11-30 06:40:53,625 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-30 06:40:53,625 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-30 06:40:53,625 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-30 06:40:53,625 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-30 06:40:53,626 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 06:40:53" (1/1) ... [2023-11-30 06:40:53,629 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-30 06:40:53,648 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 06:40:53,660 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 06:40:53,666 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 06:40:53,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-30 06:40:53,681 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-30 06:40:53,681 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-30 06:40:53,681 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-30 06:40:53,681 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-30 06:40:53,682 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-11-30 06:40:53,682 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-11-30 06:40:53,682 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-11-30 06:40:53,682 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-11-30 06:40:53,682 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-11-30 06:40:53,682 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-11-30 06:40:53,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-30 06:40:53,682 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-30 06:40:53,682 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-30 06:40:53,683 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-30 06:40:53,683 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 06:40:53,796 INFO L241 CfgBuilder]: Building ICFG [2023-11-30 06:40:53,803 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-30 06:40:54,114 INFO L282 CfgBuilder]: Performing block encoding [2023-11-30 06:40:54,200 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-30 06:40:54,201 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-30 06:40:54,202 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 06:40:54 BoogieIcfgContainer [2023-11-30 06:40:54,202 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-30 06:40:54,203 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-30 06:40:54,203 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-30 06:40:54,205 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-30 06:40:54,205 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 06:40:53" (1/3) ... [2023-11-30 06:40:54,205 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24193896 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 06:40:54, skipping insertion in model container [2023-11-30 06:40:54,205 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 06:40:53" (2/3) ... [2023-11-30 06:40:54,206 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24193896 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 06:40:54, skipping insertion in model container [2023-11-30 06:40:54,206 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 06:40:54" (3/3) ... [2023-11-30 06:40:54,206 INFO L112 eAbstractionObserver]: Analyzing ICFG mix016_pso.opt_tso.opt.i [2023-11-30 06:40:54,217 INFO L197 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-30 06:40:54,217 INFO L156 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-11-30 06:40:54,217 INFO L508 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-30 06:40:54,267 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-30 06:40:54,297 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 130 places, 123 transitions, 258 flow [2023-11-30 06:40:54,334 INFO L124 PetriNetUnfolderBase]: 3/120 cut-off events. [2023-11-30 06:40:54,335 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-30 06:40:54,338 INFO L83 FinitePrefix]: Finished finitePrefix Result has 130 conditions, 120 events. 3/120 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 89 event pairs, 0 based on Foata normal form. 0/111 useless extension candidates. Maximal degree in co-relation 83. Up to 2 conditions per place. [2023-11-30 06:40:54,339 INFO L82 GeneralOperation]: Start removeDead. Operand has 130 places, 123 transitions, 258 flow [2023-11-30 06:40:54,341 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 127 places, 120 transitions, 249 flow [2023-11-30 06:40:54,347 INFO L361 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-30 06:40:54,350 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;@766d8776, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-30 06:40:54,351 INFO L363 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2023-11-30 06:40:54,360 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-30 06:40:54,360 INFO L124 PetriNetUnfolderBase]: 0/50 cut-off events. [2023-11-30 06:40:54,360 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-30 06:40:54,361 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 06:40:54,361 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] [2023-11-30 06:40:54,361 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 06:40:54,365 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 06:40:54,365 INFO L85 PathProgramCache]: Analyzing trace with hash -946827647, now seen corresponding path program 1 times [2023-11-30 06:40:54,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 06:40:54,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502435919] [2023-11-30 06:40:54,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 06:40:54,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 06:40:54,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 06:40:54,633 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 06:40:54,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 06:40:54,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502435919] [2023-11-30 06:40:54,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [502435919] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 06:40:54,634 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 06:40:54,634 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-30 06:40:54,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199085492] [2023-11-30 06:40:54,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 06:40:54,640 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-30 06:40:54,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 06:40:54,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-30 06:40:54,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-30 06:40:54,664 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 123 [2023-11-30 06:40:54,666 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 120 transitions, 249 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 06:40:54,666 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 06:40:54,666 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 123 [2023-11-30 06:40:54,667 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 06:40:54,924 INFO L124 PetriNetUnfolderBase]: 372/877 cut-off events. [2023-11-30 06:40:54,924 INFO L125 PetriNetUnfolderBase]: For 13/13 co-relation queries the response was YES. [2023-11-30 06:40:54,929 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1521 conditions, 877 events. 372/877 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 104. Compared 5742 event pairs, 81 based on Foata normal form. 207/894 useless extension candidates. Maximal degree in co-relation 1471. Up to 562 conditions per place. [2023-11-30 06:40:54,935 INFO L140 encePairwiseOnDemand]: 110/123 looper letters, 26 selfloop transitions, 4 changer transitions 0/125 dead transitions. [2023-11-30 06:40:54,935 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 125 transitions, 325 flow [2023-11-30 06:40:54,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-30 06:40:54,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-30 06:40:54,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 342 transitions. [2023-11-30 06:40:54,949 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.926829268292683 [2023-11-30 06:40:54,950 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 342 transitions. [2023-11-30 06:40:54,950 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 342 transitions. [2023-11-30 06:40:54,952 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 06:40:54,954 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 342 transitions. [2023-11-30 06:40:54,957 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 114.0) internal successors, (342), 3 states have internal predecessors, (342), 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 06:40:54,960 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 123.0) internal successors, (492), 4 states have internal predecessors, (492), 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 06:40:54,961 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 123.0) internal successors, (492), 4 states have internal predecessors, (492), 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 06:40:54,964 INFO L307 CegarLoopForPetriNet]: 127 programPoint places, -1 predicate places. [2023-11-30 06:40:54,965 INFO L500 AbstractCegarLoop]: Abstraction has has 126 places, 125 transitions, 325 flow [2023-11-30 06:40:54,965 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 06:40:54,965 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 06:40:54,966 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 06:40:54,966 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-30 06:40:54,966 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 06:40:54,967 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 06:40:54,967 INFO L85 PathProgramCache]: Analyzing trace with hash 1750183651, now seen corresponding path program 1 times [2023-11-30 06:40:54,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 06:40:54,967 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978838148] [2023-11-30 06:40:54,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 06:40:54,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 06:40:55,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 06:40:55,140 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 06:40:55,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 06:40:55,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [978838148] [2023-11-30 06:40:55,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [978838148] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 06:40:55,141 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 06:40:55,141 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-30 06:40:55,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642400949] [2023-11-30 06:40:55,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 06:40:55,142 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-30 06:40:55,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 06:40:55,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-30 06:40:55,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-30 06:40:55,143 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 123 [2023-11-30 06:40:55,143 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 125 transitions, 325 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 06:40:55,143 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 06:40:55,144 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 123 [2023-11-30 06:40:55,144 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 06:40:55,290 INFO L124 PetriNetUnfolderBase]: 249/661 cut-off events. [2023-11-30 06:40:55,290 INFO L125 PetriNetUnfolderBase]: For 101/329 co-relation queries the response was YES. [2023-11-30 06:40:55,293 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1509 conditions, 661 events. 249/661 cut-off events. For 101/329 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 3931 event pairs, 159 based on Foata normal form. 6/564 useless extension candidates. Maximal degree in co-relation 1456. Up to 359 conditions per place. [2023-11-30 06:40:55,296 INFO L140 encePairwiseOnDemand]: 116/123 looper letters, 23 selfloop transitions, 4 changer transitions 0/122 dead transitions. [2023-11-30 06:40:55,296 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 122 transitions, 367 flow [2023-11-30 06:40:55,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-30 06:40:55,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-30 06:40:55,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 430 transitions. [2023-11-30 06:40:55,298 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8739837398373984 [2023-11-30 06:40:55,298 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 430 transitions. [2023-11-30 06:40:55,298 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 430 transitions. [2023-11-30 06:40:55,298 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 06:40:55,299 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 430 transitions. [2023-11-30 06:40:55,299 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 107.5) internal successors, (430), 4 states have internal predecessors, (430), 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 06:40:55,301 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 123.0) internal successors, (615), 5 states have internal predecessors, (615), 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 06:40:55,302 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 123.0) internal successors, (615), 5 states have internal predecessors, (615), 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 06:40:55,302 INFO L307 CegarLoopForPetriNet]: 127 programPoint places, -1 predicate places. [2023-11-30 06:40:55,303 INFO L500 AbstractCegarLoop]: Abstraction has has 126 places, 122 transitions, 367 flow [2023-11-30 06:40:55,303 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 06:40:55,303 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 06:40:55,303 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 06:40:55,303 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-30 06:40:55,304 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 06:40:55,306 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 06:40:55,306 INFO L85 PathProgramCache]: Analyzing trace with hash 579850054, now seen corresponding path program 1 times [2023-11-30 06:40:55,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 06:40:55,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [615537104] [2023-11-30 06:40:55,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 06:40:55,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 06:40:55,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 06:40:55,421 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 06:40:55,421 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 06:40:55,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [615537104] [2023-11-30 06:40:55,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [615537104] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 06:40:55,422 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 06:40:55,422 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-30 06:40:55,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727074246] [2023-11-30 06:40:55,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 06:40:55,422 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-30 06:40:55,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 06:40:55,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-30 06:40:55,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-30 06:40:55,424 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 123 [2023-11-30 06:40:55,424 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 122 transitions, 367 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 06:40:55,424 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 06:40:55,424 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 123 [2023-11-30 06:40:55,425 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 06:40:55,579 INFO L124 PetriNetUnfolderBase]: 162/507 cut-off events. [2023-11-30 06:40:55,579 INFO L125 PetriNetUnfolderBase]: For 198/480 co-relation queries the response was YES. [2023-11-30 06:40:55,580 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1342 conditions, 507 events. 162/507 cut-off events. For 198/480 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 2816 event pairs, 48 based on Foata normal form. 6/484 useless extension candidates. Maximal degree in co-relation 1286. Up to 219 conditions per place. [2023-11-30 06:40:55,582 INFO L140 encePairwiseOnDemand]: 116/123 looper letters, 27 selfloop transitions, 7 changer transitions 3/132 dead transitions. [2023-11-30 06:40:55,582 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 129 places, 132 transitions, 504 flow [2023-11-30 06:40:55,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-30 06:40:55,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-30 06:40:55,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 440 transitions. [2023-11-30 06:40:55,583 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8943089430894309 [2023-11-30 06:40:55,583 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 440 transitions. [2023-11-30 06:40:55,583 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 440 transitions. [2023-11-30 06:40:55,584 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 06:40:55,584 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 440 transitions. [2023-11-30 06:40:55,584 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 110.0) internal successors, (440), 4 states have internal predecessors, (440), 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 06:40:55,585 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 123.0) internal successors, (615), 5 states have internal predecessors, (615), 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 06:40:55,586 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 123.0) internal successors, (615), 5 states have internal predecessors, (615), 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 06:40:55,586 INFO L307 CegarLoopForPetriNet]: 127 programPoint places, 2 predicate places. [2023-11-30 06:40:55,586 INFO L500 AbstractCegarLoop]: Abstraction has has 129 places, 132 transitions, 504 flow [2023-11-30 06:40:55,586 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 06:40:55,587 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 06:40:55,587 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] [2023-11-30 06:40:55,587 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-30 06:40:55,587 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 06:40:55,587 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 06:40:55,587 INFO L85 PathProgramCache]: Analyzing trace with hash 1657669241, now seen corresponding path program 1 times [2023-11-30 06:40:55,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 06:40:55,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [765879632] [2023-11-30 06:40:55,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 06:40:55,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 06:40:55,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 06:40:55,696 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 06:40:55,696 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 06:40:55,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [765879632] [2023-11-30 06:40:55,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [765879632] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 06:40:55,696 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 06:40:55,696 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-30 06:40:55,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863285013] [2023-11-30 06:40:55,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 06:40:55,697 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-30 06:40:55,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 06:40:55,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-30 06:40:55,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-30 06:40:55,698 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 123 [2023-11-30 06:40:55,699 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 132 transitions, 504 flow. Second operand has 5 states, 5 states have (on average 102.2) internal successors, (511), 5 states have internal predecessors, (511), 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 06:40:55,699 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 06:40:55,699 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 123 [2023-11-30 06:40:55,699 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 06:40:55,795 INFO L124 PetriNetUnfolderBase]: 156/537 cut-off events. [2023-11-30 06:40:55,795 INFO L125 PetriNetUnfolderBase]: For 432/878 co-relation queries the response was YES. [2023-11-30 06:40:55,796 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1583 conditions, 537 events. 156/537 cut-off events. For 432/878 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 2844 event pairs, 54 based on Foata normal form. 12/523 useless extension candidates. Maximal degree in co-relation 1524. Up to 204 conditions per place. [2023-11-30 06:40:55,797 INFO L140 encePairwiseOnDemand]: 116/123 looper letters, 0 selfloop transitions, 0 changer transitions 131/131 dead transitions. [2023-11-30 06:40:55,797 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 131 transitions, 568 flow [2023-11-30 06:40:55,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-30 06:40:55,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-30 06:40:55,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 539 transitions. [2023-11-30 06:40:55,799 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8764227642276423 [2023-11-30 06:40:55,799 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 539 transitions. [2023-11-30 06:40:55,799 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 539 transitions. [2023-11-30 06:40:55,799 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 06:40:55,799 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 539 transitions. [2023-11-30 06:40:55,800 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 107.8) internal successors, (539), 5 states have internal predecessors, (539), 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 06:40:55,801 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 123.0) internal successors, (738), 6 states have internal predecessors, (738), 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 06:40:55,801 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 123.0) internal successors, (738), 6 states have internal predecessors, (738), 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 06:40:55,802 INFO L307 CegarLoopForPetriNet]: 127 programPoint places, 3 predicate places. [2023-11-30 06:40:55,802 INFO L500 AbstractCegarLoop]: Abstraction has has 130 places, 131 transitions, 568 flow [2023-11-30 06:40:55,802 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 102.2) internal successors, (511), 5 states have internal predecessors, (511), 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 06:40:55,807 INFO L143 wickiGriesTestDumper]: Dumping Owicki-Gries test to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mix016_pso.opt_tso.opt.i_BEv2_AllErrorsAtOnce [2023-11-30 06:40:55,834 INFO L810 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 15 remaining) [2023-11-30 06:40:55,834 INFO L810 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 15 remaining) [2023-11-30 06:40:55,835 INFO L810 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 15 remaining) [2023-11-30 06:40:55,835 INFO L810 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 15 remaining) [2023-11-30 06:40:55,835 INFO L810 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 15 remaining) [2023-11-30 06:40:55,835 INFO L810 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 15 remaining) [2023-11-30 06:40:55,835 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 15 remaining) [2023-11-30 06:40:55,835 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 15 remaining) [2023-11-30 06:40:55,835 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 15 remaining) [2023-11-30 06:40:55,835 INFO L810 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 15 remaining) [2023-11-30 06:40:55,836 INFO L810 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 15 remaining) [2023-11-30 06:40:55,836 INFO L810 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 15 remaining) [2023-11-30 06:40:55,836 INFO L810 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 15 remaining) [2023-11-30 06:40:55,836 INFO L810 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 15 remaining) [2023-11-30 06:40:55,836 INFO L810 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 15 remaining) [2023-11-30 06:40:55,836 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-30 06:40:55,836 INFO L457 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-11-30 06:40:55,840 INFO L222 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-30 06:40:55,840 INFO L172 ceAbstractionStarter]: Computing trace abstraction results [2023-11-30 06:40:55,847 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 06:40:55 BasicIcfg [2023-11-30 06:40:55,847 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-30 06:40:55,848 INFO L158 Benchmark]: Toolchain (without parser) took 2676.81ms. Allocated memory is still 601.9MB. Free memory was 552.9MB in the beginning and 462.3MB in the end (delta: 90.6MB). Peak memory consumption was 91.8MB. Max. memory is 16.0GB. [2023-11-30 06:40:55,848 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 358.6MB. Free memory is still 305.7MB. There was no memory consumed. Max. memory is 16.0GB. [2023-11-30 06:40:55,848 INFO L158 Benchmark]: CACSL2BoogieTranslator took 374.87ms. Allocated memory is still 601.9MB. Free memory was 552.6MB in the beginning and 528.6MB in the end (delta: 24.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.0GB. [2023-11-30 06:40:55,849 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.34ms. Allocated memory is still 601.9MB. Free memory was 528.6MB in the beginning and 525.9MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-11-30 06:40:55,854 INFO L158 Benchmark]: Boogie Preprocessor took 32.76ms. Allocated memory is still 601.9MB. Free memory was 525.9MB in the beginning and 523.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-11-30 06:40:55,854 INFO L158 Benchmark]: RCFGBuilder took 576.51ms. Allocated memory is still 601.9MB. Free memory was 523.8MB in the beginning and 542.4MB in the end (delta: -18.7MB). Peak memory consumption was 27.4MB. Max. memory is 16.0GB. [2023-11-30 06:40:55,855 INFO L158 Benchmark]: TraceAbstraction took 1644.23ms. Allocated memory is still 601.9MB. Free memory was 541.4MB in the beginning and 462.3MB in the end (delta: 79.1MB). Peak memory consumption was 79.1MB. Max. memory is 16.0GB. [2023-11-30 06:40:55,858 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 358.6MB. Free memory is still 305.7MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 374.87ms. Allocated memory is still 601.9MB. Free memory was 552.6MB in the beginning and 528.6MB in the end (delta: 24.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 42.34ms. Allocated memory is still 601.9MB. Free memory was 528.6MB in the beginning and 525.9MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 32.76ms. Allocated memory is still 601.9MB. Free memory was 525.9MB in the beginning and 523.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 576.51ms. Allocated memory is still 601.9MB. Free memory was 523.8MB in the beginning and 542.4MB in the end (delta: -18.7MB). Peak memory consumption was 27.4MB. Max. memory is 16.0GB. * TraceAbstraction took 1644.23ms. Allocated memory is still 601.9MB. Free memory was 541.4MB in the beginning and 462.3MB in the end (delta: 79.1MB). Peak memory consumption was 79.1MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 755]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 755]: 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: 828]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 828]: 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, 64 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 64 mSDsluCounter, 4 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 23 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 169 IncrementalHoareTripleChecker+Invalid, 192 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 23 mSolverCounterUnsat, 4 mSDtfsCounter, 169 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=568occurred 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, 233 NumberOfCodeBlocks, 233 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 229 ConstructedInterpolants, 0 QuantifiedInterpolants, 639 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 06:40:55,871 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...