/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf --traceabstraction.order.of.the.error.locations.to.be.checked PROGRAM_FIRST -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true -i ../../../trunk/examples/svcomp/weaver/test-semi1.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-27 15:24:29,829 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-27 15:24:29,877 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-VariableLbe.epf [2023-08-27 15:24:29,881 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-27 15:24:29,881 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-27 15:24:29,912 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-27 15:24:29,913 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-27 15:24:29,918 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-27 15:24:29,918 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-27 15:24:29,919 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-27 15:24:29,919 INFO L153 SettingsManager]: * Use SBE=true [2023-08-27 15:24:29,919 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-27 15:24:29,920 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-27 15:24:29,920 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-27 15:24:29,920 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-27 15:24:29,921 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-27 15:24:29,921 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-27 15:24:29,921 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-27 15:24:29,922 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-27 15:24:29,922 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-27 15:24:29,922 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-27 15:24:29,926 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-27 15:24:29,926 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-27 15:24:29,927 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-27 15:24:29,929 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-27 15:24:29,929 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-27 15:24:29,930 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-27 15:24:29,930 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-27 15:24:29,930 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-27 15:24:29,930 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-27 15:24:29,931 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-27 15:24:29,931 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-27 15:24:29,932 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-27 15:24:29,932 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-27 15:24:29,932 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-27 15:24:29,932 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> PROGRAM_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2023-08-27 15:24:30,269 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-27 15:24:30,290 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-27 15:24:30,292 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-27 15:24:30,293 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-27 15:24:30,293 INFO L274 PluginConnector]: CDTParser initialized [2023-08-27 15:24:30,295 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/test-semi1.wvr.c [2023-08-27 15:24:31,494 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-27 15:24:31,739 INFO L384 CDTParser]: Found 1 translation units. [2023-08-27 15:24:31,740 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/test-semi1.wvr.c [2023-08-27 15:24:31,748 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0de9e8100/1cec12f79a594e6da5fa0e46a82049f4/FLAG39c9a0519 [2023-08-27 15:24:31,766 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0de9e8100/1cec12f79a594e6da5fa0e46a82049f4 [2023-08-27 15:24:31,771 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-27 15:24:31,773 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-27 15:24:31,776 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-27 15:24:31,776 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-27 15:24:31,778 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-27 15:24:31,780 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 03:24:31" (1/1) ... [2023-08-27 15:24:31,781 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@750fabf3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:24:31, skipping insertion in model container [2023-08-27 15:24:31,781 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 03:24:31" (1/1) ... [2023-08-27 15:24:31,801 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-27 15:24:31,963 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-27 15:24:31,973 INFO L201 MainTranslator]: Completed pre-run [2023-08-27 15:24:31,997 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-27 15:24:32,006 WARN L669 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-27 15:24:32,006 WARN L669 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-27 15:24:32,012 INFO L206 MainTranslator]: Completed translation [2023-08-27 15:24:32,014 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:24:32 WrapperNode [2023-08-27 15:24:32,014 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-27 15:24:32,015 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-27 15:24:32,015 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-27 15:24:32,015 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-27 15:24:32,021 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:24:32" (1/1) ... [2023-08-27 15:24:32,029 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:24:32" (1/1) ... [2023-08-27 15:24:32,052 INFO L138 Inliner]: procedures = 21, calls = 27, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 77 [2023-08-27 15:24:32,052 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-27 15:24:32,053 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-27 15:24:32,053 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-27 15:24:32,053 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-27 15:24:32,060 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:24:32" (1/1) ... [2023-08-27 15:24:32,061 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:24:32" (1/1) ... [2023-08-27 15:24:32,070 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:24:32" (1/1) ... [2023-08-27 15:24:32,070 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:24:32" (1/1) ... [2023-08-27 15:24:32,079 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:24:32" (1/1) ... [2023-08-27 15:24:32,081 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:24:32" (1/1) ... [2023-08-27 15:24:32,082 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:24:32" (1/1) ... [2023-08-27 15:24:32,083 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:24:32" (1/1) ... [2023-08-27 15:24:32,089 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-27 15:24:32,089 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-27 15:24:32,090 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-27 15:24:32,090 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-27 15:24:32,090 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:24:32" (1/1) ... [2023-08-27 15:24:32,095 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-27 15:24:32,104 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-27 15:24:32,117 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) [2023-08-27 15:24:32,134 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 [2023-08-27 15:24:32,151 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-27 15:24:32,151 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-27 15:24:32,151 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-27 15:24:32,152 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-27 15:24:32,152 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-27 15:24:32,153 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-27 15:24:32,153 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-27 15:24:32,153 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-27 15:24:32,153 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-27 15:24:32,153 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-27 15:24:32,153 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-27 15:24:32,153 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-27 15:24:32,153 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-27 15:24:32,154 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-27 15:24:32,155 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-27 15:24:32,228 INFO L236 CfgBuilder]: Building ICFG [2023-08-27 15:24:32,230 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-27 15:24:32,440 INFO L277 CfgBuilder]: Performing block encoding [2023-08-27 15:24:32,513 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-27 15:24:32,517 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-27 15:24:32,519 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 03:24:32 BoogieIcfgContainer [2023-08-27 15:24:32,519 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-27 15:24:32,522 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-27 15:24:32,522 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-27 15:24:32,524 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-27 15:24:32,524 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.08 03:24:31" (1/3) ... [2023-08-27 15:24:32,525 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40d5928b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 03:24:32, skipping insertion in model container [2023-08-27 15:24:32,525 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:24:32" (2/3) ... [2023-08-27 15:24:32,526 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40d5928b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 03:24:32, skipping insertion in model container [2023-08-27 15:24:32,526 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 03:24:32" (3/3) ... [2023-08-27 15:24:32,527 INFO L112 eAbstractionObserver]: Analyzing ICFG test-semi1.wvr.c [2023-08-27 15:24:32,543 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-27 15:24:32,543 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2023-08-27 15:24:32,544 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-27 15:24:32,605 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-27 15:24:32,643 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 84 places, 80 transitions, 176 flow [2023-08-27 15:24:32,701 INFO L124 PetriNetUnfolderBase]: 3/78 cut-off events. [2023-08-27 15:24:32,701 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-27 15:24:32,707 INFO L83 FinitePrefix]: Finished finitePrefix Result has 87 conditions, 78 events. 3/78 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 28 event pairs, 0 based on Foata normal form. 0/70 useless extension candidates. Maximal degree in co-relation 49. Up to 2 conditions per place. [2023-08-27 15:24:32,707 INFO L82 GeneralOperation]: Start removeDead. Operand has 84 places, 80 transitions, 176 flow [2023-08-27 15:24:32,712 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 73 places, 69 transitions, 150 flow [2023-08-27 15:24:32,715 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 15:24:32,727 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 73 places, 69 transitions, 150 flow [2023-08-27 15:24:32,730 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 73 places, 69 transitions, 150 flow [2023-08-27 15:24:32,731 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 73 places, 69 transitions, 150 flow [2023-08-27 15:24:32,766 INFO L124 PetriNetUnfolderBase]: 3/69 cut-off events. [2023-08-27 15:24:32,766 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-27 15:24:32,766 INFO L83 FinitePrefix]: Finished finitePrefix Result has 78 conditions, 69 events. 3/69 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 28 event pairs, 0 based on Foata normal form. 0/62 useless extension candidates. Maximal degree in co-relation 49. Up to 2 conditions per place. [2023-08-27 15:24:32,767 INFO L119 LiptonReduction]: Number of co-enabled transitions 200 [2023-08-27 15:24:35,226 INFO L134 LiptonReduction]: Checked pairs total: 308 [2023-08-27 15:24:35,227 INFO L136 LiptonReduction]: Total number of compositions: 67 [2023-08-27 15:24:35,239 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-27 15:24:35,245 INFO L357 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=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@38317f13, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 15:24:35,245 INFO L358 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2023-08-27 15:24:35,247 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 15:24:35,247 INFO L124 PetriNetUnfolderBase]: 0/2 cut-off events. [2023-08-27 15:24:35,247 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 15:24:35,247 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 15:24:35,248 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-27 15:24:35,248 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2023-08-27 15:24:35,252 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 15:24:35,252 INFO L85 PathProgramCache]: Analyzing trace with hash 315478, now seen corresponding path program 1 times [2023-08-27 15:24:35,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 15:24:35,260 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141337591] [2023-08-27 15:24:35,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 15:24:35,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 15:24:35,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 15:24:35,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 15:24:35,482 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 15:24:35,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141337591] [2023-08-27 15:24:35,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [141337591] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 15:24:35,483 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 15:24:35,483 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 15:24:35,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061162492] [2023-08-27 15:24:35,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 15:24:35,490 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 15:24:35,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 15:24:35,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 15:24:35,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 15:24:35,511 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 147 [2023-08-27 15:24:35,512 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 22 places, 15 transitions, 42 flow. Second operand has 3 states, 3 states have (on average 62.0) internal successors, (186), 3 states have internal predecessors, (186), 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) [2023-08-27 15:24:35,513 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 15:24:35,513 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 147 [2023-08-27 15:24:35,513 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 15:24:35,552 INFO L124 PetriNetUnfolderBase]: 24/57 cut-off events. [2023-08-27 15:24:35,553 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-08-27 15:24:35,554 INFO L83 FinitePrefix]: Finished finitePrefix Result has 130 conditions, 57 events. 24/57 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 119 event pairs, 24 based on Foata normal form. 0/41 useless extension candidates. Maximal degree in co-relation 92. Up to 57 conditions per place. [2023-08-27 15:24:35,556 INFO L140 encePairwiseOnDemand]: 144/147 looper letters, 12 selfloop transitions, 1 changer transitions 0/13 dead transitions. [2023-08-27 15:24:35,556 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 22 places, 13 transitions, 64 flow [2023-08-27 15:24:35,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 15:24:35,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 15:24:35,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 198 transitions. [2023-08-27 15:24:35,570 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4489795918367347 [2023-08-27 15:24:35,571 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 198 transitions. [2023-08-27 15:24:35,571 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 198 transitions. [2023-08-27 15:24:35,573 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 15:24:35,575 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 198 transitions. [2023-08-27 15:24:35,581 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 66.0) internal successors, (198), 3 states have internal predecessors, (198), 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) [2023-08-27 15:24:35,585 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 147.0) internal successors, (588), 4 states have internal predecessors, (588), 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) [2023-08-27 15:24:35,585 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 147.0) internal successors, (588), 4 states have internal predecessors, (588), 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) [2023-08-27 15:24:35,587 INFO L175 Difference]: Start difference. First operand has 22 places, 15 transitions, 42 flow. Second operand 3 states and 198 transitions. [2023-08-27 15:24:35,588 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 22 places, 13 transitions, 64 flow [2023-08-27 15:24:35,589 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 18 places, 13 transitions, 56 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-27 15:24:35,590 INFO L231 Difference]: Finished difference. Result has 18 places, 13 transitions, 32 flow [2023-08-27 15:24:35,592 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=147, PETRI_DIFFERENCE_MINUEND_FLOW=30, PETRI_DIFFERENCE_MINUEND_PLACES=16, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=13, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=32, PETRI_PLACES=18, PETRI_TRANSITIONS=13} [2023-08-27 15:24:35,595 INFO L281 CegarLoopForPetriNet]: 22 programPoint places, -4 predicate places. [2023-08-27 15:24:35,596 INFO L495 AbstractCegarLoop]: Abstraction has has 18 places, 13 transitions, 32 flow [2023-08-27 15:24:35,596 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 62.0) internal successors, (186), 3 states have internal predecessors, (186), 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) [2023-08-27 15:24:35,596 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 15:24:35,596 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-27 15:24:35,596 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-27 15:24:35,597 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2023-08-27 15:24:35,605 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 15:24:35,605 INFO L85 PathProgramCache]: Analyzing trace with hash 315479, now seen corresponding path program 1 times [2023-08-27 15:24:35,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 15:24:35,605 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41251614] [2023-08-27 15:24:35,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 15:24:35,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 15:24:35,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 15:24:35,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 15:24:35,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 15:24:35,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [41251614] [2023-08-27 15:24:35,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [41251614] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 15:24:35,682 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 15:24:35,683 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 15:24:35,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733506890] [2023-08-27 15:24:35,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 15:24:35,691 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 15:24:35,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 15:24:35,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 15:24:35,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 15:24:35,693 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 147 [2023-08-27 15:24:35,693 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 18 places, 13 transitions, 32 flow. Second operand has 3 states, 3 states have (on average 62.0) internal successors, (186), 3 states have internal predecessors, (186), 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) [2023-08-27 15:24:35,694 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 15:24:35,694 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 147 [2023-08-27 15:24:35,694 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 15:24:35,734 INFO L124 PetriNetUnfolderBase]: 12/35 cut-off events. [2023-08-27 15:24:35,734 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-08-27 15:24:35,734 INFO L83 FinitePrefix]: Finished finitePrefix Result has 77 conditions, 35 events. 12/35 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 61 event pairs, 3 based on Foata normal form. 0/31 useless extension candidates. Maximal degree in co-relation 71. Up to 28 conditions per place. [2023-08-27 15:24:35,734 INFO L140 encePairwiseOnDemand]: 143/147 looper letters, 14 selfloop transitions, 2 changer transitions 0/16 dead transitions. [2023-08-27 15:24:35,735 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 19 places, 16 transitions, 71 flow [2023-08-27 15:24:35,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 15:24:35,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 15:24:35,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 201 transitions. [2023-08-27 15:24:35,740 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4557823129251701 [2023-08-27 15:24:35,741 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 201 transitions. [2023-08-27 15:24:35,741 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 201 transitions. [2023-08-27 15:24:35,741 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 15:24:35,741 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 201 transitions. [2023-08-27 15:24:35,743 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 67.0) internal successors, (201), 3 states have internal predecessors, (201), 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) [2023-08-27 15:24:35,745 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 147.0) internal successors, (588), 4 states have internal predecessors, (588), 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) [2023-08-27 15:24:35,745 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 147.0) internal successors, (588), 4 states have internal predecessors, (588), 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) [2023-08-27 15:24:35,745 INFO L175 Difference]: Start difference. First operand has 18 places, 13 transitions, 32 flow. Second operand 3 states and 201 transitions. [2023-08-27 15:24:35,745 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 19 places, 16 transitions, 71 flow [2023-08-27 15:24:35,746 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 18 places, 16 transitions, 70 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 15:24:35,746 INFO L231 Difference]: Finished difference. Result has 19 places, 12 transitions, 37 flow [2023-08-27 15:24:35,747 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=147, PETRI_DIFFERENCE_MINUEND_FLOW=29, PETRI_DIFFERENCE_MINUEND_PLACES=16, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=12, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=37, PETRI_PLACES=19, PETRI_TRANSITIONS=12} [2023-08-27 15:24:35,747 INFO L281 CegarLoopForPetriNet]: 22 programPoint places, -3 predicate places. [2023-08-27 15:24:35,748 INFO L495 AbstractCegarLoop]: Abstraction has has 19 places, 12 transitions, 37 flow [2023-08-27 15:24:35,748 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 62.0) internal successors, (186), 3 states have internal predecessors, (186), 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) [2023-08-27 15:24:35,749 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 15:24:35,749 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-27 15:24:35,751 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-27 15:24:35,752 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2023-08-27 15:24:35,754 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 15:24:35,754 INFO L85 PathProgramCache]: Analyzing trace with hash 810538234, now seen corresponding path program 1 times [2023-08-27 15:24:35,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 15:24:35,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275150927] [2023-08-27 15:24:35,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 15:24:35,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 15:24:35,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 15:24:35,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 15:24:35,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 15:24:35,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275150927] [2023-08-27 15:24:35,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [275150927] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 15:24:35,827 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 15:24:35,828 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-27 15:24:35,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931266614] [2023-08-27 15:24:35,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 15:24:35,828 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 15:24:35,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 15:24:35,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 15:24:35,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 15:24:35,829 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 147 [2023-08-27 15:24:35,830 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 19 places, 12 transitions, 37 flow. Second operand has 3 states, 3 states have (on average 63.0) internal successors, (189), 3 states have internal predecessors, (189), 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) [2023-08-27 15:24:35,830 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 15:24:35,830 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 147 [2023-08-27 15:24:35,830 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 15:24:35,860 INFO L124 PetriNetUnfolderBase]: 9/28 cut-off events. [2023-08-27 15:24:35,860 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2023-08-27 15:24:35,860 INFO L83 FinitePrefix]: Finished finitePrefix Result has 77 conditions, 28 events. 9/28 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 31 event pairs, 9 based on Foata normal form. 4/32 useless extension candidates. Maximal degree in co-relation 69. Up to 28 conditions per place. [2023-08-27 15:24:35,861 INFO L140 encePairwiseOnDemand]: 145/147 looper letters, 10 selfloop transitions, 1 changer transitions 0/11 dead transitions. [2023-08-27 15:24:35,862 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 20 places, 11 transitions, 55 flow [2023-08-27 15:24:35,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 15:24:35,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 15:24:35,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 195 transitions. [2023-08-27 15:24:35,863 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4421768707482993 [2023-08-27 15:24:35,863 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 195 transitions. [2023-08-27 15:24:35,863 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 195 transitions. [2023-08-27 15:24:35,863 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 15:24:35,863 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 195 transitions. [2023-08-27 15:24:35,864 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 65.0) internal successors, (195), 3 states have internal predecessors, (195), 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) [2023-08-27 15:24:35,865 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 147.0) internal successors, (588), 4 states have internal predecessors, (588), 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) [2023-08-27 15:24:35,866 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 147.0) internal successors, (588), 4 states have internal predecessors, (588), 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) [2023-08-27 15:24:35,866 INFO L175 Difference]: Start difference. First operand has 19 places, 12 transitions, 37 flow. Second operand 3 states and 195 transitions. [2023-08-27 15:24:35,866 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 20 places, 11 transitions, 55 flow [2023-08-27 15:24:35,866 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 17 places, 11 transitions, 49 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-27 15:24:35,867 INFO L231 Difference]: Finished difference. Result has 17 places, 11 transitions, 29 flow [2023-08-27 15:24:35,867 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=147, PETRI_DIFFERENCE_MINUEND_FLOW=27, PETRI_DIFFERENCE_MINUEND_PLACES=15, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=11, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=29, PETRI_PLACES=17, PETRI_TRANSITIONS=11} [2023-08-27 15:24:35,868 INFO L281 CegarLoopForPetriNet]: 22 programPoint places, -5 predicate places. [2023-08-27 15:24:35,869 INFO L495 AbstractCegarLoop]: Abstraction has has 17 places, 11 transitions, 29 flow [2023-08-27 15:24:35,869 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 63.0) internal successors, (189), 3 states have internal predecessors, (189), 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) [2023-08-27 15:24:35,869 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 15:24:35,869 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 15:24:35,869 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-27 15:24:35,873 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2023-08-27 15:24:35,873 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 15:24:35,873 INFO L85 PathProgramCache]: Analyzing trace with hash -895822144, now seen corresponding path program 1 times [2023-08-27 15:24:35,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 15:24:35,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536324055] [2023-08-27 15:24:35,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 15:24:35,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 15:24:35,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 15:24:36,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 15:24:36,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 15:24:36,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [536324055] [2023-08-27 15:24:36,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [536324055] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 15:24:36,117 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 15:24:36,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-27 15:24:36,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566441295] [2023-08-27 15:24:36,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 15:24:36,117 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-27 15:24:36,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 15:24:36,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-27 15:24:36,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-27 15:24:36,121 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 147 [2023-08-27 15:24:36,122 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 17 places, 11 transitions, 29 flow. Second operand has 4 states, 4 states have (on average 61.75) internal successors, (247), 4 states have internal predecessors, (247), 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) [2023-08-27 15:24:36,122 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 15:24:36,122 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 147 [2023-08-27 15:24:36,122 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 15:24:36,165 INFO L124 PetriNetUnfolderBase]: 8/32 cut-off events. [2023-08-27 15:24:36,165 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 15:24:36,166 INFO L83 FinitePrefix]: Finished finitePrefix Result has 72 conditions, 32 events. 8/32 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 57 event pairs, 1 based on Foata normal form. 1/33 useless extension candidates. Maximal degree in co-relation 65. Up to 13 conditions per place. [2023-08-27 15:24:36,166 INFO L140 encePairwiseOnDemand]: 143/147 looper letters, 10 selfloop transitions, 2 changer transitions 10/22 dead transitions. [2023-08-27 15:24:36,166 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 20 places, 22 transitions, 99 flow [2023-08-27 15:24:36,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-27 15:24:36,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-27 15:24:36,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 259 transitions. [2023-08-27 15:24:36,168 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44047619047619047 [2023-08-27 15:24:36,168 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 259 transitions. [2023-08-27 15:24:36,168 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 259 transitions. [2023-08-27 15:24:36,168 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 15:24:36,169 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 259 transitions. [2023-08-27 15:24:36,169 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 64.75) internal successors, (259), 4 states have internal predecessors, (259), 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) [2023-08-27 15:24:36,170 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 147.0) internal successors, (735), 5 states have internal predecessors, (735), 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) [2023-08-27 15:24:36,171 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 147.0) internal successors, (735), 5 states have internal predecessors, (735), 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) [2023-08-27 15:24:36,171 INFO L175 Difference]: Start difference. First operand has 17 places, 11 transitions, 29 flow. Second operand 4 states and 259 transitions. [2023-08-27 15:24:36,171 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 20 places, 22 transitions, 99 flow [2023-08-27 15:24:36,171 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 19 places, 22 transitions, 98 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 15:24:36,172 INFO L231 Difference]: Finished difference. Result has 20 places, 11 transitions, 38 flow [2023-08-27 15:24:36,172 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=147, PETRI_DIFFERENCE_MINUEND_FLOW=28, PETRI_DIFFERENCE_MINUEND_PLACES=16, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=11, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=9, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=38, PETRI_PLACES=20, PETRI_TRANSITIONS=11} [2023-08-27 15:24:36,173 INFO L281 CegarLoopForPetriNet]: 22 programPoint places, -2 predicate places. [2023-08-27 15:24:36,173 INFO L495 AbstractCegarLoop]: Abstraction has has 20 places, 11 transitions, 38 flow [2023-08-27 15:24:36,174 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 61.75) internal successors, (247), 4 states have internal predecessors, (247), 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) [2023-08-27 15:24:36,174 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 15:24:36,174 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 15:24:36,174 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-27 15:24:36,174 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2023-08-27 15:24:36,175 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 15:24:36,175 INFO L85 PathProgramCache]: Analyzing trace with hash -252088574, now seen corresponding path program 2 times [2023-08-27 15:24:36,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 15:24:36,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411619951] [2023-08-27 15:24:36,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 15:24:36,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 15:24:36,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 15:24:36,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 15:24:36,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 15:24:36,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [411619951] [2023-08-27 15:24:36,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [411619951] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 15:24:36,350 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 15:24:36,350 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-27 15:24:36,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22055296] [2023-08-27 15:24:36,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 15:24:36,351 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-27 15:24:36,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 15:24:36,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-27 15:24:36,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-27 15:24:36,352 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 147 [2023-08-27 15:24:36,353 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 20 places, 11 transitions, 38 flow. Second operand has 4 states, 4 states have (on average 61.75) internal successors, (247), 4 states have internal predecessors, (247), 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) [2023-08-27 15:24:36,353 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 15:24:36,353 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 147 [2023-08-27 15:24:36,353 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 15:24:36,380 INFO L124 PetriNetUnfolderBase]: 2/14 cut-off events. [2023-08-27 15:24:36,381 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-08-27 15:24:36,381 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43 conditions, 14 events. 2/14 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 8 event pairs, 1 based on Foata normal form. 1/15 useless extension candidates. Maximal degree in co-relation 34. Up to 11 conditions per place. [2023-08-27 15:24:36,381 INFO L140 encePairwiseOnDemand]: 143/147 looper letters, 0 selfloop transitions, 0 changer transitions 11/11 dead transitions. [2023-08-27 15:24:36,381 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 21 places, 11 transitions, 58 flow [2023-08-27 15:24:36,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-27 15:24:36,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-27 15:24:36,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 248 transitions. [2023-08-27 15:24:36,383 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4217687074829932 [2023-08-27 15:24:36,383 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 248 transitions. [2023-08-27 15:24:36,383 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 248 transitions. [2023-08-27 15:24:36,384 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 15:24:36,384 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 248 transitions. [2023-08-27 15:24:36,384 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 62.0) internal successors, (248), 4 states have internal predecessors, (248), 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) [2023-08-27 15:24:36,385 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 147.0) internal successors, (735), 5 states have internal predecessors, (735), 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) [2023-08-27 15:24:36,386 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 147.0) internal successors, (735), 5 states have internal predecessors, (735), 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) [2023-08-27 15:24:36,386 INFO L175 Difference]: Start difference. First operand has 20 places, 11 transitions, 38 flow. Second operand 4 states and 248 transitions. [2023-08-27 15:24:36,386 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 21 places, 11 transitions, 58 flow [2023-08-27 15:24:36,386 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 18 places, 11 transitions, 52 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-27 15:24:36,387 INFO L231 Difference]: Finished difference. Result has 18 places, 0 transitions, 0 flow [2023-08-27 15:24:36,387 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=147, PETRI_DIFFERENCE_MINUEND_FLOW=28, PETRI_DIFFERENCE_MINUEND_PLACES=15, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=10, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=18, PETRI_TRANSITIONS=0} [2023-08-27 15:24:36,387 INFO L281 CegarLoopForPetriNet]: 22 programPoint places, -4 predicate places. [2023-08-27 15:24:36,387 INFO L495 AbstractCegarLoop]: Abstraction has has 18 places, 0 transitions, 0 flow [2023-08-27 15:24:36,388 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 61.75) internal successors, (247), 4 states have internal predecessors, (247), 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) [2023-08-27 15:24:36,390 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 11 remaining) [2023-08-27 15:24:36,390 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 11 remaining) [2023-08-27 15:24:36,390 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 11 remaining) [2023-08-27 15:24:36,390 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 11 remaining) [2023-08-27 15:24:36,391 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (6 of 11 remaining) [2023-08-27 15:24:36,391 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 11 remaining) [2023-08-27 15:24:36,391 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 11 remaining) [2023-08-27 15:24:36,391 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 11 remaining) [2023-08-27 15:24:36,391 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 11 remaining) [2023-08-27 15:24:36,391 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 11 remaining) [2023-08-27 15:24:36,391 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 11 remaining) [2023-08-27 15:24:36,392 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-27 15:24:36,392 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1] [2023-08-27 15:24:36,396 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-27 15:24:36,397 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-27 15:24:36,399 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.08 03:24:36 BasicIcfg [2023-08-27 15:24:36,399 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-27 15:24:36,400 INFO L158 Benchmark]: Toolchain (without parser) took 4626.92ms. Allocated memory was 350.2MB in the beginning and 446.7MB in the end (delta: 96.5MB). Free memory was 326.1MB in the beginning and 345.2MB in the end (delta: -19.1MB). Peak memory consumption was 80.1MB. Max. memory is 16.0GB. [2023-08-27 15:24:36,400 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 350.2MB. Free memory is still 327.4MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-27 15:24:36,400 INFO L158 Benchmark]: CACSL2BoogieTranslator took 238.68ms. Allocated memory is still 350.2MB. Free memory was 326.1MB in the beginning and 315.7MB in the end (delta: 10.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.0GB. [2023-08-27 15:24:36,401 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.19ms. Allocated memory is still 350.2MB. Free memory was 315.2MB in the beginning and 314.1MB in the end (delta: 1.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. [2023-08-27 15:24:36,401 INFO L158 Benchmark]: Boogie Preprocessor took 35.92ms. Allocated memory is still 350.2MB. Free memory was 313.5MB in the beginning and 312.6MB in the end (delta: 932.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-27 15:24:36,401 INFO L158 Benchmark]: RCFGBuilder took 429.84ms. Allocated memory is still 350.2MB. Free memory was 312.6MB in the beginning and 296.4MB in the end (delta: 16.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. [2023-08-27 15:24:36,402 INFO L158 Benchmark]: TraceAbstraction took 3877.65ms. Allocated memory was 350.2MB in the beginning and 446.7MB in the end (delta: 96.5MB). Free memory was 295.8MB in the beginning and 345.2MB in the end (delta: -49.3MB). Peak memory consumption was 48.7MB. Max. memory is 16.0GB. [2023-08-27 15:24:36,403 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 350.2MB. Free memory is still 327.4MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 238.68ms. Allocated memory is still 350.2MB. Free memory was 326.1MB in the beginning and 315.7MB in the end (delta: 10.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 37.19ms. Allocated memory is still 350.2MB. Free memory was 315.2MB in the beginning and 314.1MB in the end (delta: 1.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. * Boogie Preprocessor took 35.92ms. Allocated memory is still 350.2MB. Free memory was 313.5MB in the beginning and 312.6MB in the end (delta: 932.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 429.84ms. Allocated memory is still 350.2MB. Free memory was 312.6MB in the beginning and 296.4MB in the end (delta: 16.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. * TraceAbstraction took 3877.65ms. Allocated memory was 350.2MB in the beginning and 446.7MB in the end (delta: 96.5MB). Free memory was 295.8MB in the beginning and 345.2MB in the end (delta: -49.3MB). Peak memory consumption was 48.7MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.5s, 73 PlacesBefore, 22 PlacesAfterwards, 69 TransitionsBefore, 15 TransitionsAfterwards, 200 CoEnabledTransitionPairs, 7 FixpointIterations, 45 TrivialSequentialCompositions, 11 ConcurrentSequentialCompositions, 8 TrivialYvCompositions, 0 ConcurrentYvCompositions, 3 ChoiceCompositions, 67 TotalNumberOfCompositions, 308 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 229, independent: 214, independent conditional: 0, independent unconditional: 214, dependent: 15, dependent conditional: 0, dependent unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 98, independent: 93, independent conditional: 0, independent unconditional: 93, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 229, independent: 121, independent conditional: 0, independent unconditional: 121, dependent: 10, dependent conditional: 0, dependent unconditional: 10, unknown: 98, unknown conditional: 0, unknown unconditional: 98] , Statistics on independence cache: Total cache size (in pairs): 17, Positive cache size: 15, Positive conditional cache size: 0, Positive unconditional cache size: 15, Negative cache size: 2, Negative conditional cache size: 0, Negative unconditional cache size: 2, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 42]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 42]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 51]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 51]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 21]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 92 locations, 11 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: 3.8s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.6s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 26 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 26 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 106 IncrementalHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 0 mSDtfsCounter, 106 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=42occurred in iteration=0, InterpolantAutomatonStates: 17, 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, 0.6s InterpolantComputationTime, 34 NumberOfCodeBlocks, 34 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 29 ConstructedInterpolants, 0 QuantifiedInterpolants, 179 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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 5 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-27 15:24:36,420 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...