/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/safe008_power.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.empire-owicki-175f719-m [2023-11-30 06:44:09,223 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-30 06:44:09,270 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2023-11-30 06:44:09,291 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-30 06:44:09,291 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-30 06:44:09,292 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-30 06:44:09,292 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-30 06:44:09,293 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-30 06:44:09,293 INFO L153 SettingsManager]: * Use SBE=true [2023-11-30 06:44:09,293 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-30 06:44:09,293 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-30 06:44:09,294 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-30 06:44:09,294 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-30 06:44:09,294 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-30 06:44:09,295 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-30 06:44:09,295 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-30 06:44:09,295 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-30 06:44:09,296 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-30 06:44:09,296 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-30 06:44:09,296 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-30 06:44:09,296 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-30 06:44:09,297 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-30 06:44:09,297 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-30 06:44:09,297 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-11-30 06:44:09,298 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-30 06:44:09,298 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-30 06:44:09,298 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-30 06:44:09,299 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-30 06:44:09,299 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-30 06:44:09,299 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-30 06:44:09,300 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-30 06:44:09,300 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-30 06:44:09,300 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-30 06:44:09,300 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2023-11-30 06:44:09,465 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-30 06:44:09,483 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-30 06:44:09,485 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-30 06:44:09,486 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-30 06:44:09,487 INFO L274 PluginConnector]: CDTParser initialized [2023-11-30 06:44:09,487 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe008_power.opt.i [2023-11-30 06:44:10,621 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-30 06:44:10,883 INFO L384 CDTParser]: Found 1 translation units. [2023-11-30 06:44:10,883 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe008_power.opt.i [2023-11-30 06:44:10,903 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e4b45c82a/1e3eea229916467f8257c5e94ad88a96/FLAG56f4e9ca3 [2023-11-30 06:44:10,919 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e4b45c82a/1e3eea229916467f8257c5e94ad88a96 [2023-11-30 06:44:10,922 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-30 06:44:10,924 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-11-30 06:44:10,925 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-30 06:44:10,925 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-30 06:44:10,929 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-30 06:44:10,929 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 06:44:10" (1/1) ... [2023-11-30 06:44:10,930 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56c5cea7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 06:44:10, skipping insertion in model container [2023-11-30 06:44:10,931 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 06:44:10" (1/1) ... [2023-11-30 06:44:10,991 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-30 06:44:11,378 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-30 06:44:11,388 INFO L202 MainTranslator]: Completed pre-run [2023-11-30 06:44:11,451 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-30 06:44:11,475 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-30 06:44:11,476 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-30 06:44:11,481 INFO L206 MainTranslator]: Completed translation [2023-11-30 06:44:11,481 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 06:44:11 WrapperNode [2023-11-30 06:44:11,481 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-30 06:44:11,482 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-30 06:44:11,482 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-30 06:44:11,482 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-30 06:44:11,488 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 06:44:11" (1/1) ... [2023-11-30 06:44:11,505 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 06:44:11" (1/1) ... [2023-11-30 06:44:11,541 INFO L138 Inliner]: procedures = 176, calls = 74, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 188 [2023-11-30 06:44:11,542 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-30 06:44:11,548 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-30 06:44:11,548 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-30 06:44:11,548 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-30 06:44:11,556 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 06:44:11" (1/1) ... [2023-11-30 06:44:11,557 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 06:44:11" (1/1) ... [2023-11-30 06:44:11,560 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 06:44:11" (1/1) ... [2023-11-30 06:44:11,560 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 06:44:11" (1/1) ... [2023-11-30 06:44:11,569 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 06:44:11" (1/1) ... [2023-11-30 06:44:11,571 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 06:44:11" (1/1) ... [2023-11-30 06:44:11,574 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 06:44:11" (1/1) ... [2023-11-30 06:44:11,575 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 06:44:11" (1/1) ... [2023-11-30 06:44:11,579 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-30 06:44:11,580 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-30 06:44:11,580 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-30 06:44:11,580 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-30 06:44:11,593 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 06:44:11" (1/1) ... [2023-11-30 06:44:11,598 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-30 06:44:11,606 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 06:44:11,617 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-30 06:44:11,618 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-30 06:44:11,638 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-30 06:44:11,638 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-30 06:44:11,638 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-30 06:44:11,638 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-30 06:44:11,638 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-30 06:44:11,639 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-30 06:44:11,639 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-11-30 06:44:11,639 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-11-30 06:44:11,639 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-11-30 06:44:11,639 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-11-30 06:44:11,639 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-11-30 06:44:11,639 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-11-30 06:44:11,639 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-30 06:44:11,640 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-30 06:44:11,640 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-30 06:44:11,640 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-30 06:44:11,641 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-30 06:44:11,786 INFO L241 CfgBuilder]: Building ICFG [2023-11-30 06:44:11,788 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-30 06:44:12,208 INFO L282 CfgBuilder]: Performing block encoding [2023-11-30 06:44:12,495 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-30 06:44:12,495 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-30 06:44:12,497 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 06:44:12 BoogieIcfgContainer [2023-11-30 06:44:12,497 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-30 06:44:12,500 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-30 06:44:12,500 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-30 06:44:12,502 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-30 06:44:12,502 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 06:44:10" (1/3) ... [2023-11-30 06:44:12,503 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f9377a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 06:44:12, skipping insertion in model container [2023-11-30 06:44:12,503 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 06:44:11" (2/3) ... [2023-11-30 06:44:12,504 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f9377a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 06:44:12, skipping insertion in model container [2023-11-30 06:44:12,504 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 06:44:12" (3/3) ... [2023-11-30 06:44:12,505 INFO L112 eAbstractionObserver]: Analyzing ICFG safe008_power.opt.i [2023-11-30 06:44:12,540 INFO L197 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-30 06:44:12,541 INFO L156 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-11-30 06:44:12,541 INFO L508 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-30 06:44:12,610 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-30 06:44:12,649 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 146 places, 139 transitions, 290 flow [2023-11-30 06:44:12,715 INFO L124 PetriNetUnfolderBase]: 3/136 cut-off events. [2023-11-30 06:44:12,715 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-30 06:44:12,720 INFO L83 FinitePrefix]: Finished finitePrefix Result has 146 conditions, 136 events. 3/136 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 81 event pairs, 0 based on Foata normal form. 0/127 useless extension candidates. Maximal degree in co-relation 82. Up to 2 conditions per place. [2023-11-30 06:44:12,720 INFO L82 GeneralOperation]: Start removeDead. Operand has 146 places, 139 transitions, 290 flow [2023-11-30 06:44:12,726 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 143 places, 136 transitions, 281 flow [2023-11-30 06:44:12,739 INFO L361 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-30 06:44:12,746 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;@c02cfb7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-30 06:44:12,746 INFO L363 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2023-11-30 06:44:12,768 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-30 06:44:12,768 INFO L124 PetriNetUnfolderBase]: 0/67 cut-off events. [2023-11-30 06:44:12,769 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-30 06:44:12,769 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 06:44:12,770 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] [2023-11-30 06:44:12,770 INFO L425 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-30 06:44:12,775 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 06:44:12,775 INFO L85 PathProgramCache]: Analyzing trace with hash -552557636, now seen corresponding path program 1 times [2023-11-30 06:44:12,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 06:44:12,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546844280] [2023-11-30 06:44:12,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 06:44:12,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 06:44:12,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 06:44:13,185 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 06:44:13,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 06:44:13,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546844280] [2023-11-30 06:44:13,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [546844280] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 06:44:13,190 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 06:44:13,190 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-30 06:44:13,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243559603] [2023-11-30 06:44:13,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 06:44:13,199 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-30 06:44:13,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 06:44:13,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-30 06:44:13,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-30 06:44:13,229 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 139 [2023-11-30 06:44:13,233 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 136 transitions, 281 flow. Second operand has 3 states, 3 states have (on average 115.66666666666667) internal successors, (347), 3 states have internal predecessors, (347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 06:44:13,234 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 06:44:13,234 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 139 [2023-11-30 06:44:13,235 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 06:44:13,957 INFO L124 PetriNetUnfolderBase]: 726/3000 cut-off events. [2023-11-30 06:44:13,958 INFO L125 PetriNetUnfolderBase]: For 25/25 co-relation queries the response was YES. [2023-11-30 06:44:13,969 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4198 conditions, 3000 events. 726/3000 cut-off events. For 25/25 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 27305 event pairs, 377 based on Foata normal form. 204/2770 useless extension candidates. Maximal degree in co-relation 4131. Up to 930 conditions per place. [2023-11-30 06:44:13,983 INFO L140 encePairwiseOnDemand]: 126/139 looper letters, 30 selfloop transitions, 4 changer transitions 0/143 dead transitions. [2023-11-30 06:44:13,984 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 143 transitions, 369 flow [2023-11-30 06:44:13,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-30 06:44:13,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-30 06:44:13,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 388 transitions. [2023-11-30 06:44:14,000 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.9304556354916067 [2023-11-30 06:44:14,001 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 388 transitions. [2023-11-30 06:44:14,002 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 388 transitions. [2023-11-30 06:44:14,005 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 06:44:14,007 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 388 transitions. [2023-11-30 06:44:14,011 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 129.33333333333334) internal successors, (388), 3 states have internal predecessors, (388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 06:44:14,016 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 139.0) internal successors, (556), 4 states have internal predecessors, (556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 06:44:14,016 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 139.0) internal successors, (556), 4 states have internal predecessors, (556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 06:44:14,021 INFO L307 CegarLoopForPetriNet]: 143 programPoint places, -1 predicate places. [2023-11-30 06:44:14,021 INFO L500 AbstractCegarLoop]: Abstraction has has 142 places, 143 transitions, 369 flow [2023-11-30 06:44:14,022 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 115.66666666666667) internal successors, (347), 3 states have internal predecessors, (347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 06:44:14,022 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 06:44:14,022 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 06:44:14,022 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-30 06:44:14,023 INFO L425 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-30 06:44:14,023 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 06:44:14,023 INFO L85 PathProgramCache]: Analyzing trace with hash 622521267, now seen corresponding path program 1 times [2023-11-30 06:44:14,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 06:44:14,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318330422] [2023-11-30 06:44:14,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 06:44:14,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 06:44:14,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 06:44:14,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 06:44:14,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 06:44:14,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318330422] [2023-11-30 06:44:14,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [318330422] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 06:44:14,311 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 06:44:14,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-30 06:44:14,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085473165] [2023-11-30 06:44:14,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 06:44:14,312 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-30 06:44:14,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 06:44:14,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-30 06:44:14,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-30 06:44:14,314 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 139 [2023-11-30 06:44:14,315 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 143 transitions, 369 flow. Second operand has 4 states, 4 states have (on average 116.25) internal successors, (465), 4 states have internal predecessors, (465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 06:44:14,315 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 06:44:14,315 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 139 [2023-11-30 06:44:14,315 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 06:44:14,838 INFO L124 PetriNetUnfolderBase]: 540/2496 cut-off events. [2023-11-30 06:44:14,838 INFO L125 PetriNetUnfolderBase]: For 136/814 co-relation queries the response was YES. [2023-11-30 06:44:14,845 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4234 conditions, 2496 events. 540/2496 cut-off events. For 136/814 co-relation queries the response was YES. Maximal size of possible extension queue 101. Compared 22529 event pairs, 219 based on Foata normal form. 30/2291 useless extension candidates. Maximal degree in co-relation 4164. Up to 630 conditions per place. [2023-11-30 06:44:14,856 INFO L140 encePairwiseOnDemand]: 132/139 looper letters, 27 selfloop transitions, 4 changer transitions 0/140 dead transitions. [2023-11-30 06:44:14,856 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 140 transitions, 419 flow [2023-11-30 06:44:14,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-30 06:44:14,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-30 06:44:14,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 490 transitions. [2023-11-30 06:44:14,858 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8812949640287769 [2023-11-30 06:44:14,859 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 490 transitions. [2023-11-30 06:44:14,859 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 490 transitions. [2023-11-30 06:44:14,859 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 06:44:14,859 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 490 transitions. [2023-11-30 06:44:14,861 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 122.5) internal successors, (490), 4 states have internal predecessors, (490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 06:44:14,864 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 139.0) internal successors, (695), 5 states have internal predecessors, (695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 06:44:14,864 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 139.0) internal successors, (695), 5 states have internal predecessors, (695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 06:44:14,865 INFO L307 CegarLoopForPetriNet]: 143 programPoint places, -1 predicate places. [2023-11-30 06:44:14,865 INFO L500 AbstractCegarLoop]: Abstraction has has 142 places, 140 transitions, 419 flow [2023-11-30 06:44:14,865 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 116.25) internal successors, (465), 4 states have internal predecessors, (465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 06:44:14,866 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 06:44:14,866 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 06:44:14,866 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-30 06:44:14,866 INFO L425 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-30 06:44:14,866 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 06:44:14,867 INFO L85 PathProgramCache]: Analyzing trace with hash 1684102674, now seen corresponding path program 1 times [2023-11-30 06:44:14,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 06:44:14,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540051481] [2023-11-30 06:44:14,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 06:44:14,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 06:44:14,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 06:44:15,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 06:44:15,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 06:44:15,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [540051481] [2023-11-30 06:44:15,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [540051481] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 06:44:15,068 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 06:44:15,068 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-30 06:44:15,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640005808] [2023-11-30 06:44:15,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 06:44:15,070 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-30 06:44:15,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 06:44:15,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-30 06:44:15,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-30 06:44:15,077 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 139 [2023-11-30 06:44:15,078 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 140 transitions, 419 flow. Second operand has 4 states, 4 states have (on average 116.25) internal successors, (465), 4 states have internal predecessors, (465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 06:44:15,078 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 06:44:15,082 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 139 [2023-11-30 06:44:15,082 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 06:44:15,469 INFO L124 PetriNetUnfolderBase]: 405/1633 cut-off events. [2023-11-30 06:44:15,469 INFO L125 PetriNetUnfolderBase]: For 343/695 co-relation queries the response was YES. [2023-11-30 06:44:15,473 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3572 conditions, 1633 events. 405/1633 cut-off events. For 343/695 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 12535 event pairs, 147 based on Foata normal form. 22/1568 useless extension candidates. Maximal degree in co-relation 3499. Up to 417 conditions per place. [2023-11-30 06:44:15,480 INFO L140 encePairwiseOnDemand]: 132/139 looper letters, 33 selfloop transitions, 7 changer transitions 3/152 dead transitions. [2023-11-30 06:44:15,480 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 152 transitions, 580 flow [2023-11-30 06:44:15,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-30 06:44:15,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-30 06:44:15,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 502 transitions. [2023-11-30 06:44:15,482 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.9028776978417267 [2023-11-30 06:44:15,483 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 502 transitions. [2023-11-30 06:44:15,483 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 502 transitions. [2023-11-30 06:44:15,483 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 06:44:15,483 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 502 transitions. [2023-11-30 06:44:15,484 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 125.5) internal successors, (502), 4 states have internal predecessors, (502), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 06:44:15,485 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 139.0) internal successors, (695), 5 states have internal predecessors, (695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 06:44:15,486 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 139.0) internal successors, (695), 5 states have internal predecessors, (695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 06:44:15,488 INFO L307 CegarLoopForPetriNet]: 143 programPoint places, 2 predicate places. [2023-11-30 06:44:15,488 INFO L500 AbstractCegarLoop]: Abstraction has has 145 places, 152 transitions, 580 flow [2023-11-30 06:44:15,489 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 116.25) internal successors, (465), 4 states have internal predecessors, (465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 06:44:15,489 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 06:44:15,489 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 06:44:15,489 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-30 06:44:15,489 INFO L425 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-30 06:44:15,490 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 06:44:15,490 INFO L85 PathProgramCache]: Analyzing trace with hash 1033276968, now seen corresponding path program 1 times [2023-11-30 06:44:15,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 06:44:15,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814929228] [2023-11-30 06:44:15,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 06:44:15,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 06:44:15,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 06:44:15,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 06:44:15,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 06:44:15,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814929228] [2023-11-30 06:44:15,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1814929228] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 06:44:15,682 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 06:44:15,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-30 06:44:15,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384362676] [2023-11-30 06:44:15,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 06:44:15,684 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-30 06:44:15,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 06:44:15,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-30 06:44:15,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-30 06:44:15,686 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 139 [2023-11-30 06:44:15,687 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 152 transitions, 580 flow. Second operand has 5 states, 5 states have (on average 116.4) internal successors, (582), 5 states have internal predecessors, (582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 06:44:15,687 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 06:44:15,687 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 139 [2023-11-30 06:44:15,687 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 06:44:16,000 INFO L124 PetriNetUnfolderBase]: 396/1366 cut-off events. [2023-11-30 06:44:16,000 INFO L125 PetriNetUnfolderBase]: For 543/1163 co-relation queries the response was YES. [2023-11-30 06:44:16,004 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3852 conditions, 1366 events. 396/1366 cut-off events. For 543/1163 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 9768 event pairs, 129 based on Foata normal form. 54/1365 useless extension candidates. Maximal degree in co-relation 3776. Up to 396 conditions per place. [2023-11-30 06:44:16,006 INFO L140 encePairwiseOnDemand]: 132/139 looper letters, 0 selfloop transitions, 0 changer transitions 152/152 dead transitions. [2023-11-30 06:44:16,006 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 146 places, 152 transitions, 666 flow [2023-11-30 06:44:16,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-30 06:44:16,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-30 06:44:16,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 616 transitions. [2023-11-30 06:44:16,009 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8863309352517985 [2023-11-30 06:44:16,009 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 616 transitions. [2023-11-30 06:44:16,009 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 616 transitions. [2023-11-30 06:44:16,009 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 06:44:16,010 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 616 transitions. [2023-11-30 06:44:16,011 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 123.2) internal successors, (616), 5 states have internal predecessors, (616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 06:44:16,012 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 139.0) internal successors, (834), 6 states have internal predecessors, (834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 06:44:16,013 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 139.0) internal successors, (834), 6 states have internal predecessors, (834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 06:44:16,014 INFO L307 CegarLoopForPetriNet]: 143 programPoint places, 3 predicate places. [2023-11-30 06:44:16,014 INFO L500 AbstractCegarLoop]: Abstraction has has 146 places, 152 transitions, 666 flow [2023-11-30 06:44:16,015 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 116.4) internal successors, (582), 5 states have internal predecessors, (582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 06:44:16,022 INFO L143 wickiGriesTestDumper]: Dumping Owicki-Gries test to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/safe008_power.opt.i_BEv2_AllErrorsAtOnce [2023-11-30 06:44:16,059 INFO L810 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 15 remaining) [2023-11-30 06:44:16,060 INFO L810 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 15 remaining) [2023-11-30 06:44:16,060 INFO L810 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 15 remaining) [2023-11-30 06:44:16,060 INFO L810 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 15 remaining) [2023-11-30 06:44:16,060 INFO L810 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 15 remaining) [2023-11-30 06:44:16,060 INFO L810 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 15 remaining) [2023-11-30 06:44:16,060 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 15 remaining) [2023-11-30 06:44:16,060 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 15 remaining) [2023-11-30 06:44:16,061 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 15 remaining) [2023-11-30 06:44:16,061 INFO L810 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 15 remaining) [2023-11-30 06:44:16,061 INFO L810 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 15 remaining) [2023-11-30 06:44:16,061 INFO L810 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 15 remaining) [2023-11-30 06:44:16,061 INFO L810 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 15 remaining) [2023-11-30 06:44:16,061 INFO L810 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 15 remaining) [2023-11-30 06:44:16,061 INFO L810 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 15 remaining) [2023-11-30 06:44:16,062 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-30 06:44:16,062 INFO L457 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-11-30 06:44:16,066 INFO L222 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-30 06:44:16,066 INFO L172 ceAbstractionStarter]: Computing trace abstraction results [2023-11-30 06:44:16,072 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 06:44:16 BasicIcfg [2023-11-30 06:44:16,072 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-30 06:44:16,072 INFO L158 Benchmark]: Toolchain (without parser) took 5148.68ms. Allocated memory was 327.2MB in the beginning and 673.2MB in the end (delta: 346.0MB). Free memory was 275.3MB in the beginning and 365.6MB in the end (delta: -90.3MB). Peak memory consumption was 258.9MB. Max. memory is 16.0GB. [2023-11-30 06:44:16,073 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 327.2MB. Free memory is still 280.3MB. There was no memory consumed. Max. memory is 16.0GB. [2023-11-30 06:44:16,073 INFO L158 Benchmark]: CACSL2BoogieTranslator took 556.62ms. Allocated memory is still 327.2MB. Free memory was 275.3MB in the beginning and 250.4MB in the end (delta: 24.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.0GB. [2023-11-30 06:44:16,073 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.76ms. Allocated memory is still 327.2MB. Free memory was 250.4MB in the beginning and 247.6MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. [2023-11-30 06:44:16,074 INFO L158 Benchmark]: Boogie Preprocessor took 31.32ms. Allocated memory is still 327.2MB. Free memory was 247.6MB in the beginning and 245.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-11-30 06:44:16,074 INFO L158 Benchmark]: RCFGBuilder took 916.75ms. Allocated memory was 327.2MB in the beginning and 494.9MB in the end (delta: 167.8MB). Free memory was 245.5MB in the beginning and 384.8MB in the end (delta: -139.2MB). Peak memory consumption was 30.3MB. Max. memory is 16.0GB. [2023-11-30 06:44:16,075 INFO L158 Benchmark]: TraceAbstraction took 3572.25ms. Allocated memory was 494.9MB in the beginning and 673.2MB in the end (delta: 178.3MB). Free memory was 384.0MB in the beginning and 365.6MB in the end (delta: 18.4MB). Peak memory consumption was 197.1MB. Max. memory is 16.0GB. [2023-11-30 06:44:16,077 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 327.2MB. Free memory is still 280.3MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 556.62ms. Allocated memory is still 327.2MB. Free memory was 275.3MB in the beginning and 250.4MB in the end (delta: 24.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 59.76ms. Allocated memory is still 327.2MB. Free memory was 250.4MB in the beginning and 247.6MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. * Boogie Preprocessor took 31.32ms. Allocated memory is still 327.2MB. Free memory was 247.6MB in the beginning and 245.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 916.75ms. Allocated memory was 327.2MB in the beginning and 494.9MB in the end (delta: 167.8MB). Free memory was 245.5MB in the beginning and 384.8MB in the end (delta: -139.2MB). Peak memory consumption was 30.3MB. Max. memory is 16.0GB. * TraceAbstraction took 3572.25ms. Allocated memory was 494.9MB in the beginning and 673.2MB in the end (delta: 178.3MB). Free memory was 384.0MB in the beginning and 365.6MB in the end (delta: 18.4MB). Peak memory consumption was 197.1MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 782]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 782]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 818]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 818]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 838]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 838]: 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, 170 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: 3.4s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 67 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 67 mSDsluCounter, 4 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 22 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 192 IncrementalHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 22 mSolverCounterUnsat, 4 mSDtfsCounter, 192 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=666occurred 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, 0.8s InterpolantComputationTime, 300 NumberOfCodeBlocks, 300 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 296 ConstructedInterpolants, 0 QuantifiedInterpolants, 840 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-30 06:44:16,101 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...