/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-atomic/read_write_lock-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.empire-owicki-175f719-m [2023-11-30 06:23:26,626 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-30 06:23:26,704 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 06:23:26,730 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-30 06:23:26,731 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-30 06:23:26,731 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-30 06:23:26,732 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-30 06:23:26,732 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-30 06:23:26,733 INFO L153 SettingsManager]: * Use SBE=true [2023-11-30 06:23:26,736 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-30 06:23:26,737 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-30 06:23:26,737 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-30 06:23:26,737 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-30 06:23:26,738 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-30 06:23:26,738 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-30 06:23:26,739 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-30 06:23:26,739 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-30 06:23:26,739 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-30 06:23:26,739 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-30 06:23:26,739 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-30 06:23:26,740 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-30 06:23:26,741 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-30 06:23:26,741 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-30 06:23:26,741 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-11-30 06:23:26,741 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-30 06:23:26,742 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-30 06:23:26,743 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-30 06:23:26,743 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-30 06:23:26,743 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-30 06:23:26,744 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-30 06:23:26,744 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-30 06:23:26,745 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-30 06:23:26,745 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-30 06:23:26,745 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2023-11-30 06:23:27,023 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-30 06:23:27,047 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-30 06:23:27,049 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-30 06:23:27,050 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-30 06:23:27,050 INFO L274 PluginConnector]: CDTParser initialized [2023-11-30 06:23:27,051 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/read_write_lock-1.i [2023-11-30 06:23:28,285 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-30 06:23:28,533 INFO L384 CDTParser]: Found 1 translation units. [2023-11-30 06:23:28,534 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/read_write_lock-1.i [2023-11-30 06:23:28,553 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/21b00818d/f42712e049a5477fa1585a06794dab18/FLAG04bc109f3 [2023-11-30 06:23:28,569 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/21b00818d/f42712e049a5477fa1585a06794dab18 [2023-11-30 06:23:28,571 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-30 06:23:28,572 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-11-30 06:23:28,576 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-30 06:23:28,576 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-30 06:23:28,580 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-30 06:23:28,581 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 06:23:28" (1/1) ... [2023-11-30 06:23:28,582 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24e0483d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 06:23:28, skipping insertion in model container [2023-11-30 06:23:28,583 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 06:23:28" (1/1) ... [2023-11-30 06:23:28,632 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-30 06:23:28,949 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-30 06:23:28,962 INFO L202 MainTranslator]: Completed pre-run [2023-11-30 06:23:29,024 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-30 06:23:29,052 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-30 06:23:29,052 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-30 06:23:29,059 INFO L206 MainTranslator]: Completed translation [2023-11-30 06:23:29,059 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 06:23:29 WrapperNode [2023-11-30 06:23:29,059 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-30 06:23:29,060 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-30 06:23:29,060 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-30 06:23:29,060 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-30 06:23:29,067 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 06:23:29" (1/1) ... [2023-11-30 06:23:29,095 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 06:23:29" (1/1) ... [2023-11-30 06:23:29,127 INFO L138 Inliner]: procedures = 174, calls = 46, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 120 [2023-11-30 06:23:29,128 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-30 06:23:29,128 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-30 06:23:29,129 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-30 06:23:29,129 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-30 06:23:29,137 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 06:23:29" (1/1) ... [2023-11-30 06:23:29,137 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 06:23:29" (1/1) ... [2023-11-30 06:23:29,157 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 06:23:29" (1/1) ... [2023-11-30 06:23:29,157 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 06:23:29" (1/1) ... [2023-11-30 06:23:29,161 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 06:23:29" (1/1) ... [2023-11-30 06:23:29,163 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 06:23:29" (1/1) ... [2023-11-30 06:23:29,164 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 06:23:29" (1/1) ... [2023-11-30 06:23:29,165 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 06:23:29" (1/1) ... [2023-11-30 06:23:29,167 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-30 06:23:29,168 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-30 06:23:29,177 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-30 06:23:29,177 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-30 06:23:29,178 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 06:23:29" (1/1) ... [2023-11-30 06:23:29,183 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-30 06:23:29,202 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 06:23:29,214 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 06:23:29,233 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 06:23:29,254 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-30 06:23:29,255 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-30 06:23:29,255 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-30 06:23:29,255 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-30 06:23:29,255 INFO L130 BoogieDeclarations]: Found specification of procedure reader [2023-11-30 06:23:29,260 INFO L138 BoogieDeclarations]: Found implementation of procedure reader [2023-11-30 06:23:29,260 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-30 06:23:29,260 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-30 06:23:29,261 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-30 06:23:29,261 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-30 06:23:29,261 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-30 06:23:29,261 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-30 06:23:29,261 INFO L130 BoogieDeclarations]: Found specification of procedure writer [2023-11-30 06:23:29,261 INFO L138 BoogieDeclarations]: Found implementation of procedure writer [2023-11-30 06:23:29,263 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 06:23:29,411 INFO L241 CfgBuilder]: Building ICFG [2023-11-30 06:23:29,413 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-30 06:23:29,636 INFO L282 CfgBuilder]: Performing block encoding [2023-11-30 06:23:29,702 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-30 06:23:29,702 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-30 06:23:29,703 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 06:23:29 BoogieIcfgContainer [2023-11-30 06:23:29,703 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-30 06:23:29,706 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-30 06:23:29,706 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-30 06:23:29,708 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-30 06:23:29,708 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 06:23:28" (1/3) ... [2023-11-30 06:23:29,711 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d24405b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 06:23:29, skipping insertion in model container [2023-11-30 06:23:29,711 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 06:23:29" (2/3) ... [2023-11-30 06:23:29,712 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d24405b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 06:23:29, skipping insertion in model container [2023-11-30 06:23:29,712 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 06:23:29" (3/3) ... [2023-11-30 06:23:29,713 INFO L112 eAbstractionObserver]: Analyzing ICFG read_write_lock-1.i [2023-11-30 06:23:29,728 INFO L197 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-30 06:23:29,728 INFO L156 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-11-30 06:23:29,728 INFO L508 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-30 06:23:29,827 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2023-11-30 06:23:29,856 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 133 places, 124 transitions, 276 flow [2023-11-30 06:23:29,901 INFO L124 PetriNetUnfolderBase]: 4/120 cut-off events. [2023-11-30 06:23:29,902 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-11-30 06:23:29,910 INFO L83 FinitePrefix]: Finished finitePrefix Result has 137 conditions, 120 events. 4/120 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 162 event pairs, 0 based on Foata normal form. 0/108 useless extension candidates. Maximal degree in co-relation 83. Up to 2 conditions per place. [2023-11-30 06:23:29,910 INFO L82 GeneralOperation]: Start removeDead. Operand has 133 places, 124 transitions, 276 flow [2023-11-30 06:23:29,918 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 115 places, 106 transitions, 233 flow [2023-11-30 06:23:29,926 INFO L361 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-30 06:23:29,932 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;@5a1b5046, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-30 06:23:29,932 INFO L363 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2023-11-30 06:23:29,941 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-30 06:23:29,941 INFO L124 PetriNetUnfolderBase]: 0/37 cut-off events. [2023-11-30 06:23:29,942 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-30 06:23:29,942 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 06:23:29,942 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] [2023-11-30 06:23:29,943 INFO L425 AbstractCegarLoop]: === Iteration 1 === Targeting readerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [readerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, readerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, readerErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-30 06:23:29,946 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 06:23:29,947 INFO L85 PathProgramCache]: Analyzing trace with hash -1216220790, now seen corresponding path program 1 times [2023-11-30 06:23:29,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 06:23:29,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819550912] [2023-11-30 06:23:29,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 06:23:29,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 06:23:30,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 06:23:30,270 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 06:23:30,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 06:23:30,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1819550912] [2023-11-30 06:23:30,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1819550912] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 06:23:30,272 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 06:23:30,272 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-30 06:23:30,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356182355] [2023-11-30 06:23:30,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 06:23:30,285 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-30 06:23:30,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 06:23:30,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-30 06:23:30,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-30 06:23:30,318 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 124 [2023-11-30 06:23:30,322 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 106 transitions, 233 flow. Second operand has 3 states, 3 states have (on average 98.33333333333333) internal successors, (295), 3 states have internal predecessors, (295), 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 06:23:30,323 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 06:23:30,323 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 124 [2023-11-30 06:23:30,324 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 06:23:30,865 INFO L124 PetriNetUnfolderBase]: 660/2659 cut-off events. [2023-11-30 06:23:30,865 INFO L125 PetriNetUnfolderBase]: For 661/661 co-relation queries the response was YES. [2023-11-30 06:23:30,876 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4164 conditions, 2659 events. 660/2659 cut-off events. For 661/661 co-relation queries the response was YES. Maximal size of possible extension queue 204. Compared 25677 event pairs, 307 based on Foata normal form. 288/2567 useless extension candidates. Maximal degree in co-relation 3817. Up to 696 conditions per place. [2023-11-30 06:23:30,889 INFO L140 encePairwiseOnDemand]: 105/124 looper letters, 26 selfloop transitions, 7 changer transitions 0/109 dead transitions. [2023-11-30 06:23:30,890 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 109 transitions, 320 flow [2023-11-30 06:23:30,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-30 06:23:30,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-30 06:23:30,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 340 transitions. [2023-11-30 06:23:30,905 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.9139784946236559 [2023-11-30 06:23:30,905 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 340 transitions. [2023-11-30 06:23:30,906 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 340 transitions. [2023-11-30 06:23:30,908 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 06:23:30,910 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 340 transitions. [2023-11-30 06:23:30,915 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 113.33333333333333) internal successors, (340), 3 states have internal predecessors, (340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 06:23:30,919 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 124.0) internal successors, (496), 4 states have internal predecessors, (496), 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 06:23:30,919 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 124.0) internal successors, (496), 4 states have internal predecessors, (496), 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 06:23:30,924 INFO L307 CegarLoopForPetriNet]: 115 programPoint places, -2 predicate places. [2023-11-30 06:23:30,924 INFO L500 AbstractCegarLoop]: Abstraction has has 113 places, 109 transitions, 320 flow [2023-11-30 06:23:30,924 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 98.33333333333333) internal successors, (295), 3 states have internal predecessors, (295), 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 06:23:30,925 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 06:23:30,925 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] [2023-11-30 06:23:30,925 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-30 06:23:30,925 INFO L425 AbstractCegarLoop]: === Iteration 2 === Targeting readerErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [readerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, readerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, readerErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-30 06:23:30,927 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 06:23:30,927 INFO L85 PathProgramCache]: Analyzing trace with hash -124606384, now seen corresponding path program 1 times [2023-11-30 06:23:30,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 06:23:30,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1205362702] [2023-11-30 06:23:30,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 06:23:30,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 06:23:30,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 06:23:31,064 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 06:23:31,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 06:23:31,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1205362702] [2023-11-30 06:23:31,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1205362702] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 06:23:31,065 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 06:23:31,066 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-30 06:23:31,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4708041] [2023-11-30 06:23:31,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 06:23:31,067 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-30 06:23:31,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 06:23:31,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-30 06:23:31,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-30 06:23:31,069 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 124 [2023-11-30 06:23:31,069 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 109 transitions, 320 flow. Second operand has 4 states, 4 states have (on average 98.25) internal successors, (393), 4 states have internal predecessors, (393), 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 06:23:31,070 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 06:23:31,070 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 124 [2023-11-30 06:23:31,070 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 06:23:31,326 INFO L124 PetriNetUnfolderBase]: 288/1481 cut-off events. [2023-11-30 06:23:31,326 INFO L125 PetriNetUnfolderBase]: For 790/882 co-relation queries the response was YES. [2023-11-30 06:23:31,332 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2941 conditions, 1481 events. 288/1481 cut-off events. For 790/882 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 13032 event pairs, 81 based on Foata normal form. 113/1384 useless extension candidates. Maximal degree in co-relation 2448. Up to 427 conditions per place. [2023-11-30 06:23:31,339 INFO L140 encePairwiseOnDemand]: 109/124 looper letters, 31 selfloop transitions, 11 changer transitions 4/122 dead transitions. [2023-11-30 06:23:31,339 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 122 transitions, 479 flow [2023-11-30 06:23:31,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-30 06:23:31,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-30 06:23:31,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 440 transitions. [2023-11-30 06:23:31,342 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8870967741935484 [2023-11-30 06:23:31,342 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 440 transitions. [2023-11-30 06:23:31,342 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 440 transitions. [2023-11-30 06:23:31,342 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 06:23:31,342 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 440 transitions. [2023-11-30 06:23:31,343 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 06:23:31,346 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 124.0) internal successors, (620), 5 states have internal predecessors, (620), 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 06:23:31,347 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 124.0) internal successors, (620), 5 states have internal predecessors, (620), 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 06:23:31,347 INFO L307 CegarLoopForPetriNet]: 115 programPoint places, 1 predicate places. [2023-11-30 06:23:31,347 INFO L500 AbstractCegarLoop]: Abstraction has has 116 places, 122 transitions, 479 flow [2023-11-30 06:23:31,348 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 98.25) internal successors, (393), 4 states have internal predecessors, (393), 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 06:23:31,348 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 06:23:31,348 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] [2023-11-30 06:23:31,349 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-30 06:23:31,349 INFO L425 AbstractCegarLoop]: === Iteration 3 === Targeting readerErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [readerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, readerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, readerErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-30 06:23:31,349 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 06:23:31,349 INFO L85 PathProgramCache]: Analyzing trace with hash -124606383, now seen corresponding path program 1 times [2023-11-30 06:23:31,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 06:23:31,350 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [195089448] [2023-11-30 06:23:31,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 06:23:31,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 06:23:31,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 06:23:31,465 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 06:23:31,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 06:23:31,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [195089448] [2023-11-30 06:23:31,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [195089448] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 06:23:31,466 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 06:23:31,466 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-30 06:23:31,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104913631] [2023-11-30 06:23:31,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 06:23:31,467 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-30 06:23:31,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 06:23:31,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-30 06:23:31,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-30 06:23:31,468 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 124 [2023-11-30 06:23:31,469 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 122 transitions, 479 flow. Second operand has 4 states, 4 states have (on average 98.25) internal successors, (393), 4 states have internal predecessors, (393), 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 06:23:31,469 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 06:23:31,469 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 124 [2023-11-30 06:23:31,469 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 06:23:31,664 INFO L124 PetriNetUnfolderBase]: 211/1251 cut-off events. [2023-11-30 06:23:31,664 INFO L125 PetriNetUnfolderBase]: For 1006/1128 co-relation queries the response was YES. [2023-11-30 06:23:31,668 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2835 conditions, 1251 events. 211/1251 cut-off events. For 1006/1128 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 10523 event pairs, 34 based on Foata normal form. 16/1144 useless extension candidates. Maximal degree in co-relation 2293. Up to 294 conditions per place. [2023-11-30 06:23:31,672 INFO L140 encePairwiseOnDemand]: 111/124 looper letters, 33 selfloop transitions, 13 changer transitions 6/128 dead transitions. [2023-11-30 06:23:31,673 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 128 transitions, 637 flow [2023-11-30 06:23:31,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-30 06:23:31,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-30 06:23:31,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 430 transitions. [2023-11-30 06:23:31,675 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8669354838709677 [2023-11-30 06:23:31,675 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 430 transitions. [2023-11-30 06:23:31,675 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 430 transitions. [2023-11-30 06:23:31,675 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 06:23:31,675 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 430 transitions. [2023-11-30 06:23:31,676 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 06:23:31,677 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 124.0) internal successors, (620), 5 states have internal predecessors, (620), 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 06:23:31,678 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 124.0) internal successors, (620), 5 states have internal predecessors, (620), 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 06:23:31,679 INFO L307 CegarLoopForPetriNet]: 115 programPoint places, 2 predicate places. [2023-11-30 06:23:31,679 INFO L500 AbstractCegarLoop]: Abstraction has has 117 places, 128 transitions, 637 flow [2023-11-30 06:23:31,680 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 98.25) internal successors, (393), 4 states have internal predecessors, (393), 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 06:23:31,680 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 06:23:31,680 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] [2023-11-30 06:23:31,680 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-30 06:23:31,680 INFO L425 AbstractCegarLoop]: === Iteration 4 === Targeting readerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [readerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, readerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, readerErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-30 06:23:31,681 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 06:23:31,682 INFO L85 PathProgramCache]: Analyzing trace with hash -802801543, now seen corresponding path program 1 times [2023-11-30 06:23:31,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 06:23:31,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1340239867] [2023-11-30 06:23:31,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 06:23:31,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 06:23:31,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 06:23:31,775 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 06:23:31,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 06:23:31,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1340239867] [2023-11-30 06:23:31,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1340239867] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 06:23:31,776 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 06:23:31,776 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-30 06:23:31,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334096017] [2023-11-30 06:23:31,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 06:23:31,777 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-30 06:23:31,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 06:23:31,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-30 06:23:31,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-30 06:23:31,782 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 124 [2023-11-30 06:23:31,782 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 128 transitions, 637 flow. Second operand has 3 states, 3 states have (on average 99.66666666666667) internal successors, (299), 3 states have internal predecessors, (299), 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 06:23:31,783 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 06:23:31,783 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 124 [2023-11-30 06:23:31,783 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 06:23:31,938 INFO L124 PetriNetUnfolderBase]: 192/1166 cut-off events. [2023-11-30 06:23:31,938 INFO L125 PetriNetUnfolderBase]: For 1396/1562 co-relation queries the response was YES. [2023-11-30 06:23:31,942 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3020 conditions, 1166 events. 192/1166 cut-off events. For 1396/1562 co-relation queries the response was YES. Maximal size of possible extension queue 88. Compared 9550 event pairs, 28 based on Foata normal form. 0/1058 useless extension candidates. Maximal degree in co-relation 2457. Up to 424 conditions per place. [2023-11-30 06:23:31,946 INFO L140 encePairwiseOnDemand]: 121/124 looper letters, 43 selfloop transitions, 1 changer transitions 6/126 dead transitions. [2023-11-30 06:23:31,946 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 126 transitions, 721 flow [2023-11-30 06:23:31,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-30 06:23:31,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-30 06:23:31,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 311 transitions. [2023-11-30 06:23:31,948 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8360215053763441 [2023-11-30 06:23:31,948 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 311 transitions. [2023-11-30 06:23:31,948 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 311 transitions. [2023-11-30 06:23:31,948 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 06:23:31,948 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 311 transitions. [2023-11-30 06:23:31,949 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 103.66666666666667) internal successors, (311), 3 states have internal predecessors, (311), 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 06:23:31,950 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 124.0) internal successors, (496), 4 states have internal predecessors, (496), 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 06:23:31,950 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 124.0) internal successors, (496), 4 states have internal predecessors, (496), 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 06:23:31,951 INFO L307 CegarLoopForPetriNet]: 115 programPoint places, 2 predicate places. [2023-11-30 06:23:31,951 INFO L500 AbstractCegarLoop]: Abstraction has has 117 places, 126 transitions, 721 flow [2023-11-30 06:23:31,952 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 99.66666666666667) internal successors, (299), 3 states have internal predecessors, (299), 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 06:23:31,952 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 06:23:31,952 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] [2023-11-30 06:23:31,952 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-30 06:23:31,952 INFO L425 AbstractCegarLoop]: === Iteration 5 === Targeting readerErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [readerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, readerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, readerErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-30 06:23:31,953 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 06:23:31,953 INFO L85 PathProgramCache]: Analyzing trace with hash -1377142872, now seen corresponding path program 1 times [2023-11-30 06:23:31,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 06:23:31,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549085606] [2023-11-30 06:23:31,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 06:23:31,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 06:23:31,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 06:23:32,001 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 06:23:32,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 06:23:32,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [549085606] [2023-11-30 06:23:32,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [549085606] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 06:23:32,002 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 06:23:32,002 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-30 06:23:32,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755944367] [2023-11-30 06:23:32,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 06:23:32,002 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-30 06:23:32,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 06:23:32,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-30 06:23:32,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-30 06:23:32,004 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 124 [2023-11-30 06:23:32,004 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 126 transitions, 721 flow. Second operand has 3 states, 3 states have (on average 99.66666666666667) internal successors, (299), 3 states have internal predecessors, (299), 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 06:23:32,004 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 06:23:32,004 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 124 [2023-11-30 06:23:32,004 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 06:23:32,124 INFO L124 PetriNetUnfolderBase]: 157/1002 cut-off events. [2023-11-30 06:23:32,124 INFO L125 PetriNetUnfolderBase]: For 1771/2081 co-relation queries the response was YES. [2023-11-30 06:23:32,127 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2774 conditions, 1002 events. 157/1002 cut-off events. For 1771/2081 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 7613 event pairs, 20 based on Foata normal form. 0/933 useless extension candidates. Maximal degree in co-relation 2239. Up to 328 conditions per place. [2023-11-30 06:23:32,131 INFO L140 encePairwiseOnDemand]: 121/124 looper letters, 35 selfloop transitions, 1 changer transitions 8/120 dead transitions. [2023-11-30 06:23:32,131 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 120 transitions, 743 flow [2023-11-30 06:23:32,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-30 06:23:32,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-30 06:23:32,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 309 transitions. [2023-11-30 06:23:32,132 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8306451612903226 [2023-11-30 06:23:32,133 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 309 transitions. [2023-11-30 06:23:32,133 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 309 transitions. [2023-11-30 06:23:32,133 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 06:23:32,133 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 309 transitions. [2023-11-30 06:23:32,134 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 103.0) internal successors, (309), 3 states have internal predecessors, (309), 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 06:23:32,135 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 124.0) internal successors, (496), 4 states have internal predecessors, (496), 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 06:23:32,135 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 124.0) internal successors, (496), 4 states have internal predecessors, (496), 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 06:23:32,135 INFO L307 CegarLoopForPetriNet]: 115 programPoint places, 2 predicate places. [2023-11-30 06:23:32,136 INFO L500 AbstractCegarLoop]: Abstraction has has 117 places, 120 transitions, 743 flow [2023-11-30 06:23:32,136 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 99.66666666666667) internal successors, (299), 3 states have internal predecessors, (299), 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 06:23:32,136 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 06:23:32,136 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] [2023-11-30 06:23:32,136 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-30 06:23:32,137 INFO L425 AbstractCegarLoop]: === Iteration 6 === Targeting readerErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [readerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, readerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, readerErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-30 06:23:32,137 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 06:23:32,137 INFO L85 PathProgramCache]: Analyzing trace with hash -97156767, now seen corresponding path program 1 times [2023-11-30 06:23:32,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 06:23:32,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369350207] [2023-11-30 06:23:32,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 06:23:32,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 06:23:32,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 06:23:32,236 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 06:23:32,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 06:23:32,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369350207] [2023-11-30 06:23:32,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1369350207] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 06:23:32,237 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 06:23:32,237 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-30 06:23:32,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573101183] [2023-11-30 06:23:32,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 06:23:32,237 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-30 06:23:32,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 06:23:32,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-30 06:23:32,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-30 06:23:32,244 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 124 [2023-11-30 06:23:32,245 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 120 transitions, 743 flow. Second operand has 5 states, 5 states have (on average 98.8) internal successors, (494), 5 states have internal predecessors, (494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 06:23:32,245 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 06:23:32,245 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 124 [2023-11-30 06:23:32,245 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 06:23:32,433 INFO L124 PetriNetUnfolderBase]: 148/1045 cut-off events. [2023-11-30 06:23:32,433 INFO L125 PetriNetUnfolderBase]: For 2367/2711 co-relation queries the response was YES. [2023-11-30 06:23:32,436 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3119 conditions, 1045 events. 148/1045 cut-off events. For 2367/2711 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 8154 event pairs, 15 based on Foata normal form. 25/1016 useless extension candidates. Maximal degree in co-relation 2485. Up to 323 conditions per place. [2023-11-30 06:23:32,438 INFO L140 encePairwiseOnDemand]: 115/124 looper letters, 0 selfloop transitions, 0 changer transitions 133/133 dead transitions. [2023-11-30 06:23:32,439 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 133 transitions, 1040 flow [2023-11-30 06:23:32,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-30 06:23:32,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-30 06:23:32,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 530 transitions. [2023-11-30 06:23:32,441 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8548387096774194 [2023-11-30 06:23:32,441 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 530 transitions. [2023-11-30 06:23:32,441 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 530 transitions. [2023-11-30 06:23:32,441 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 06:23:32,442 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 530 transitions. [2023-11-30 06:23:32,443 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 106.0) internal successors, (530), 5 states have internal predecessors, (530), 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 06:23:32,445 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 124.0) internal successors, (744), 6 states have internal predecessors, (744), 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 06:23:32,445 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 124.0) internal successors, (744), 6 states have internal predecessors, (744), 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 06:23:32,447 INFO L307 CegarLoopForPetriNet]: 115 programPoint places, 4 predicate places. [2023-11-30 06:23:32,447 INFO L500 AbstractCegarLoop]: Abstraction has has 119 places, 133 transitions, 1040 flow [2023-11-30 06:23:32,448 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 98.8) internal successors, (494), 5 states have internal predecessors, (494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 06:23:32,454 INFO L143 wickiGriesTestDumper]: Dumping Owicki-Gries test to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/read_write_lock-1.i_BEv2_AllErrorsAtOnce [2023-11-30 06:23:32,505 INFO L810 garLoopResultBuilder]: Registering result SAFE for location readerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 16 remaining) [2023-11-30 06:23:32,506 INFO L810 garLoopResultBuilder]: Registering result SAFE for location readerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 16 remaining) [2023-11-30 06:23:32,506 INFO L810 garLoopResultBuilder]: Registering result SAFE for location readerErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 16 remaining) [2023-11-30 06:23:32,506 INFO L810 garLoopResultBuilder]: Registering result SAFE for location readerErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 16 remaining) [2023-11-30 06:23:32,506 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 16 remaining) [2023-11-30 06:23:32,506 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 16 remaining) [2023-11-30 06:23:32,506 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 16 remaining) [2023-11-30 06:23:32,507 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 16 remaining) [2023-11-30 06:23:32,507 INFO L810 garLoopResultBuilder]: Registering result SAFE for location readerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 16 remaining) [2023-11-30 06:23:32,507 INFO L810 garLoopResultBuilder]: Registering result SAFE for location readerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 16 remaining) [2023-11-30 06:23:32,507 INFO L810 garLoopResultBuilder]: Registering result SAFE for location readerErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 16 remaining) [2023-11-30 06:23:32,507 INFO L810 garLoopResultBuilder]: Registering result SAFE for location readerErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 16 remaining) [2023-11-30 06:23:32,507 INFO L810 garLoopResultBuilder]: Registering result SAFE for location readerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 16 remaining) [2023-11-30 06:23:32,507 INFO L810 garLoopResultBuilder]: Registering result SAFE for location readerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 16 remaining) [2023-11-30 06:23:32,507 INFO L810 garLoopResultBuilder]: Registering result SAFE for location readerErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 16 remaining) [2023-11-30 06:23:32,508 INFO L810 garLoopResultBuilder]: Registering result SAFE for location readerErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 16 remaining) [2023-11-30 06:23:32,508 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-30 06:23:32,508 INFO L457 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2023-11-30 06:23:32,512 INFO L222 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-30 06:23:32,512 INFO L172 ceAbstractionStarter]: Computing trace abstraction results [2023-11-30 06:23:32,518 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 06:23:32 BasicIcfg [2023-11-30 06:23:32,518 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-30 06:23:32,518 INFO L158 Benchmark]: Toolchain (without parser) took 3946.20ms. Allocated memory was 352.3MB in the beginning and 490.7MB in the end (delta: 138.4MB). Free memory was 304.4MB in the beginning and 448.9MB in the end (delta: -144.5MB). Peak memory consumption was 276.7MB. Max. memory is 16.0GB. [2023-11-30 06:23:32,519 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 352.3MB. Free memory is still 308.4MB. There was no memory consumed. Max. memory is 16.0GB. [2023-11-30 06:23:32,519 INFO L158 Benchmark]: CACSL2BoogieTranslator took 483.36ms. Allocated memory is still 352.3MB. Free memory was 304.4MB in the beginning and 284.2MB in the end (delta: 20.2MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. [2023-11-30 06:23:32,519 INFO L158 Benchmark]: Boogie Procedure Inliner took 67.76ms. Allocated memory is still 352.3MB. Free memory was 284.2MB in the beginning and 282.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-11-30 06:23:32,520 INFO L158 Benchmark]: Boogie Preprocessor took 38.68ms. Allocated memory is still 352.3MB. Free memory was 281.8MB in the beginning and 280.3MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-11-30 06:23:32,520 INFO L158 Benchmark]: RCFGBuilder took 535.64ms. Allocated memory was 352.3MB in the beginning and 490.7MB in the end (delta: 138.4MB). Free memory was 280.3MB in the beginning and 461.6MB in the end (delta: -181.2MB). Peak memory consumption was 25.8MB. Max. memory is 16.0GB. [2023-11-30 06:23:32,520 INFO L158 Benchmark]: TraceAbstraction took 2812.23ms. Allocated memory is still 490.7MB. Free memory was 460.7MB in the beginning and 448.9MB in the end (delta: 11.7MB). Peak memory consumption was 292.8MB. Max. memory is 16.0GB. [2023-11-30 06:23:32,521 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 352.3MB. Free memory is still 308.4MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 483.36ms. Allocated memory is still 352.3MB. Free memory was 304.4MB in the beginning and 284.2MB in the end (delta: 20.2MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 67.76ms. Allocated memory is still 352.3MB. Free memory was 284.2MB in the beginning and 282.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 38.68ms. Allocated memory is still 352.3MB. Free memory was 281.8MB in the beginning and 280.3MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 535.64ms. Allocated memory was 352.3MB in the beginning and 490.7MB in the end (delta: 138.4MB). Free memory was 280.3MB in the beginning and 461.6MB in the end (delta: -181.2MB). Peak memory consumption was 25.8MB. Max. memory is 16.0GB. * TraceAbstraction took 2812.23ms. Allocated memory is still 490.7MB. Free memory was 460.7MB in the beginning and 448.9MB in the end (delta: 11.7MB). Peak memory consumption was 292.8MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 711]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 711]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 714]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 714]: 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, 153 locations, 16 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2.7s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 84 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 84 mSDsluCounter, 6 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 58 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 261 IncrementalHoareTripleChecker+Invalid, 319 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 58 mSolverCounterUnsat, 6 mSDtfsCounter, 261 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1040occurred in iteration=6, InterpolantAutomatonStates: 22, 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, 255 NumberOfCodeBlocks, 255 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 249 ConstructedInterpolants, 0 QuantifiedInterpolants, 519 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-30 06:23:32,539 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...