/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 -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/goblint-regression/04-mutex_02-simple_nr.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-26 22:11:20,457 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-26 22:11:20,503 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 [2023-08-26 22:11:20,506 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-26 22:11:20,506 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-26 22:11:20,520 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-26 22:11:20,520 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-26 22:11:20,520 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-26 22:11:20,521 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-26 22:11:20,521 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-26 22:11:20,521 INFO L153 SettingsManager]: * Use SBE=true [2023-08-26 22:11:20,522 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-26 22:11:20,522 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-26 22:11:20,522 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-26 22:11:20,522 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-26 22:11:20,523 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-26 22:11:20,523 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-26 22:11:20,523 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-26 22:11:20,523 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-26 22:11:20,524 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-26 22:11:20,524 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-26 22:11:20,524 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-26 22:11:20,524 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-26 22:11:20,525 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-26 22:11:20,525 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-26 22:11:20,525 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-26 22:11:20,525 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-26 22:11:20,526 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 22:11:20,526 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-26 22:11:20,526 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-26 22:11:20,526 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-26 22:11:20,527 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-26 22:11:20,527 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-26 22:11:20,527 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-26 22:11:20,527 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-26 22:11:20,527 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2023-08-26 22:11:20,771 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-26 22:11:20,790 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-26 22:11:20,792 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-26 22:11:20,793 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-26 22:11:20,794 INFO L274 PluginConnector]: CDTParser initialized [2023-08-26 22:11:20,795 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/04-mutex_02-simple_nr.i [2023-08-26 22:11:21,848 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-26 22:11:22,018 INFO L384 CDTParser]: Found 1 translation units. [2023-08-26 22:11:22,019 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/04-mutex_02-simple_nr.i [2023-08-26 22:11:22,038 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/35b598090/fcb057d7d4ea4c479fcdb5d30a038101/FLAG1cae0a0fc [2023-08-26 22:11:22,050 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/35b598090/fcb057d7d4ea4c479fcdb5d30a038101 [2023-08-26 22:11:22,055 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-26 22:11:22,056 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-26 22:11:22,057 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-26 22:11:22,057 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-26 22:11:22,058 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-26 22:11:22,059 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 10:11:22" (1/1) ... [2023-08-26 22:11:22,059 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@619b125e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 10:11:22, skipping insertion in model container [2023-08-26 22:11:22,060 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 10:11:22" (1/1) ... [2023-08-26 22:11:22,089 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-26 22:11:22,337 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 22:11:22,348 INFO L201 MainTranslator]: Completed pre-run [2023-08-26 22:11:22,371 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [244] [2023-08-26 22:11:22,372 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [244] [2023-08-26 22:11:22,376 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: unsigned short [736] [2023-08-26 22:11:22,387 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 22:11:22,457 INFO L206 MainTranslator]: Completed translation [2023-08-26 22:11:22,459 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 10:11:22 WrapperNode [2023-08-26 22:11:22,459 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-26 22:11:22,460 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-26 22:11:22,460 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-26 22:11:22,460 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-26 22:11:22,464 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 10:11:22" (1/1) ... [2023-08-26 22:11:22,488 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 10:11:22" (1/1) ... [2023-08-26 22:11:22,499 INFO L138 Inliner]: procedures = 262, calls = 16, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 43 [2023-08-26 22:11:22,499 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-26 22:11:22,500 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-26 22:11:22,500 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-26 22:11:22,500 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-26 22:11:22,507 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 10:11:22" (1/1) ... [2023-08-26 22:11:22,507 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 10:11:22" (1/1) ... [2023-08-26 22:11:22,514 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 10:11:22" (1/1) ... [2023-08-26 22:11:22,515 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 10:11:22" (1/1) ... [2023-08-26 22:11:22,522 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 10:11:22" (1/1) ... [2023-08-26 22:11:22,522 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 10:11:22" (1/1) ... [2023-08-26 22:11:22,523 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 10:11:22" (1/1) ... [2023-08-26 22:11:22,524 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 10:11:22" (1/1) ... [2023-08-26 22:11:22,525 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-26 22:11:22,525 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-26 22:11:22,525 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-26 22:11:22,525 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-26 22:11:22,526 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 10:11:22" (1/1) ... [2023-08-26 22:11:22,534 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 22:11:22,542 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 22:11:22,550 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) [2023-08-26 22:11:22,558 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 [2023-08-26 22:11:22,579 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-26 22:11:22,579 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-26 22:11:22,579 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-26 22:11:22,579 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-26 22:11:22,580 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-26 22:11:22,580 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-26 22:11:22,580 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-26 22:11:22,580 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-26 22:11:22,580 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-26 22:11:22,580 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-26 22:11:22,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-26 22:11:22,581 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-26 22:11:22,687 INFO L236 CfgBuilder]: Building ICFG [2023-08-26 22:11:22,688 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-26 22:11:22,817 INFO L277 CfgBuilder]: Performing block encoding [2023-08-26 22:11:22,821 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-26 22:11:22,821 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-26 22:11:22,822 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 10:11:22 BoogieIcfgContainer [2023-08-26 22:11:22,822 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-26 22:11:22,823 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-26 22:11:22,823 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-26 22:11:22,825 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-26 22:11:22,825 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.08 10:11:22" (1/3) ... [2023-08-26 22:11:22,826 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a6985cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 10:11:22, skipping insertion in model container [2023-08-26 22:11:22,826 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 10:11:22" (2/3) ... [2023-08-26 22:11:22,826 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a6985cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 10:11:22, skipping insertion in model container [2023-08-26 22:11:22,826 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 10:11:22" (3/3) ... [2023-08-26 22:11:22,827 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_02-simple_nr.i [2023-08-26 22:11:22,839 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-26 22:11:22,839 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-08-26 22:11:22,839 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-26 22:11:22,878 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-08-26 22:11:22,900 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 61 places, 57 transitions, 122 flow [2023-08-26 22:11:22,934 INFO L124 PetriNetUnfolderBase]: 0/56 cut-off events. [2023-08-26 22:11:22,935 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-08-26 22:11:22,937 INFO L83 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 56 events. 0/56 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 32 event pairs, 0 based on Foata normal form. 0/52 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2023-08-26 22:11:22,938 INFO L82 GeneralOperation]: Start removeDead. Operand has 61 places, 57 transitions, 122 flow [2023-08-26 22:11:22,942 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 53 places, 49 transitions, 101 flow [2023-08-26 22:11:22,944 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-26 22:11:22,961 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 53 places, 49 transitions, 101 flow [2023-08-26 22:11:22,965 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 53 places, 49 transitions, 101 flow [2023-08-26 22:11:22,966 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 53 places, 49 transitions, 101 flow [2023-08-26 22:11:22,977 INFO L124 PetriNetUnfolderBase]: 0/49 cut-off events. [2023-08-26 22:11:22,978 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 22:11:22,978 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53 conditions, 49 events. 0/49 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 32 event pairs, 0 based on Foata normal form. 0/45 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-08-26 22:11:22,978 INFO L119 LiptonReduction]: Number of co-enabled transitions 242 [2023-08-26 22:11:24,257 INFO L134 LiptonReduction]: Checked pairs total: 1222 [2023-08-26 22:11:24,258 INFO L136 LiptonReduction]: Total number of compositions: 34 [2023-08-26 22:11:24,267 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-26 22:11:24,271 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;@1e6716b3, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-26 22:11:24,271 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2023-08-26 22:11:24,272 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-26 22:11:24,273 INFO L124 PetriNetUnfolderBase]: 0/4 cut-off events. [2023-08-26 22:11:24,273 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 22:11:24,273 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 22:11:24,273 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-26 22:11:24,273 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-26 22:11:24,276 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 22:11:24,277 INFO L85 PathProgramCache]: Analyzing trace with hash 5845746, now seen corresponding path program 1 times [2023-08-26 22:11:24,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 22:11:24,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832395715] [2023-08-26 22:11:24,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 22:11:24,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 22:11:24,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 22:11:24,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 22:11:24,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 22:11:24,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832395715] [2023-08-26 22:11:24,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [832395715] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 22:11:24,414 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 22:11:24,414 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-26 22:11:24,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090806044] [2023-08-26 22:11:24,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 22:11:24,420 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 22:11:24,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 22:11:24,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 22:11:24,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 22:11:24,437 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 91 [2023-08-26 22:11:24,438 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 20 places, 16 transitions, 35 flow. Second operand has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 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) [2023-08-26 22:11:24,438 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 22:11:24,439 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 91 [2023-08-26 22:11:24,439 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 22:11:24,484 INFO L124 PetriNetUnfolderBase]: 29/74 cut-off events. [2023-08-26 22:11:24,485 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 22:11:24,485 INFO L83 FinitePrefix]: Finished finitePrefix Result has 153 conditions, 74 events. 29/74 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 197 event pairs, 15 based on Foata normal form. 0/66 useless extension candidates. Maximal degree in co-relation 144. Up to 49 conditions per place. [2023-08-26 22:11:24,487 INFO L140 encePairwiseOnDemand]: 84/91 looper letters, 17 selfloop transitions, 3 changer transitions 4/24 dead transitions. [2023-08-26 22:11:24,487 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 22 places, 24 transitions, 99 flow [2023-08-26 22:11:24,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 22:11:24,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 22:11:24,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 160 transitions. [2023-08-26 22:11:24,495 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5860805860805861 [2023-08-26 22:11:24,495 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 160 transitions. [2023-08-26 22:11:24,495 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 160 transitions. [2023-08-26 22:11:24,496 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 22:11:24,497 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 160 transitions. [2023-08-26 22:11:24,499 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 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) [2023-08-26 22:11:24,502 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 91.0) internal successors, (364), 4 states have internal predecessors, (364), 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) [2023-08-26 22:11:24,503 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 91.0) internal successors, (364), 4 states have internal predecessors, (364), 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) [2023-08-26 22:11:24,504 INFO L175 Difference]: Start difference. First operand has 20 places, 16 transitions, 35 flow. Second operand 3 states and 160 transitions. [2023-08-26 22:11:24,504 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 22 places, 24 transitions, 99 flow [2023-08-26 22:11:24,506 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 21 places, 24 transitions, 98 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-26 22:11:24,507 INFO L231 Difference]: Finished difference. Result has 22 places, 16 transitions, 51 flow [2023-08-26 22:11:24,508 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=34, PETRI_DIFFERENCE_MINUEND_PLACES=19, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=51, PETRI_PLACES=22, PETRI_TRANSITIONS=16} [2023-08-26 22:11:24,510 INFO L281 CegarLoopForPetriNet]: 20 programPoint places, 2 predicate places. [2023-08-26 22:11:24,510 INFO L495 AbstractCegarLoop]: Abstraction has has 22 places, 16 transitions, 51 flow [2023-08-26 22:11:24,510 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 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) [2023-08-26 22:11:24,510 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 22:11:24,510 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 22:11:24,511 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-26 22:11:24,511 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-26 22:11:24,511 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 22:11:24,511 INFO L85 PathProgramCache]: Analyzing trace with hash -71829259, now seen corresponding path program 1 times [2023-08-26 22:11:24,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 22:11:24,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059397196] [2023-08-26 22:11:24,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 22:11:24,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 22:11:24,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 22:11:24,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 22:11:24,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 22:11:24,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1059397196] [2023-08-26 22:11:24,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1059397196] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 22:11:24,642 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 22:11:24,642 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-26 22:11:24,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945176970] [2023-08-26 22:11:24,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 22:11:24,643 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 22:11:24,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 22:11:24,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 22:11:24,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 22:11:24,645 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 91 [2023-08-26 22:11:24,645 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 22 places, 16 transitions, 51 flow. Second operand has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 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) [2023-08-26 22:11:24,645 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 22:11:24,645 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 91 [2023-08-26 22:11:24,645 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 22:11:24,662 INFO L124 PetriNetUnfolderBase]: 0/22 cut-off events. [2023-08-26 22:11:24,662 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 22:11:24,662 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48 conditions, 22 events. 0/22 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 34 event pairs, 0 based on Foata normal form. 3/25 useless extension candidates. Maximal degree in co-relation 0. Up to 7 conditions per place. [2023-08-26 22:11:24,663 INFO L140 encePairwiseOnDemand]: 87/91 looper letters, 4 selfloop transitions, 4 changer transitions 0/16 dead transitions. [2023-08-26 22:11:24,663 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 16 transitions, 67 flow [2023-08-26 22:11:24,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 22:11:24,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 22:11:24,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 145 transitions. [2023-08-26 22:11:24,666 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5311355311355311 [2023-08-26 22:11:24,667 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 145 transitions. [2023-08-26 22:11:24,667 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 145 transitions. [2023-08-26 22:11:24,668 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 22:11:24,668 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 145 transitions. [2023-08-26 22:11:24,670 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 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) [2023-08-26 22:11:24,671 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 91.0) internal successors, (364), 4 states have internal predecessors, (364), 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) [2023-08-26 22:11:24,671 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 91.0) internal successors, (364), 4 states have internal predecessors, (364), 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) [2023-08-26 22:11:24,671 INFO L175 Difference]: Start difference. First operand has 22 places, 16 transitions, 51 flow. Second operand 3 states and 145 transitions. [2023-08-26 22:11:24,671 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 16 transitions, 67 flow [2023-08-26 22:11:24,672 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 16 transitions, 64 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-26 22:11:24,673 INFO L231 Difference]: Finished difference. Result has 23 places, 16 transitions, 56 flow [2023-08-26 22:11:24,673 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=48, PETRI_DIFFERENCE_MINUEND_PLACES=21, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=56, PETRI_PLACES=23, PETRI_TRANSITIONS=16} [2023-08-26 22:11:24,673 INFO L281 CegarLoopForPetriNet]: 20 programPoint places, 3 predicate places. [2023-08-26 22:11:24,674 INFO L495 AbstractCegarLoop]: Abstraction has has 23 places, 16 transitions, 56 flow [2023-08-26 22:11:24,674 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 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) [2023-08-26 22:11:24,674 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 22:11:24,674 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 22:11:24,674 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-26 22:11:24,675 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-26 22:11:24,676 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 22:11:24,678 INFO L85 PathProgramCache]: Analyzing trace with hash 1174059666, now seen corresponding path program 1 times [2023-08-26 22:11:24,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 22:11:24,679 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365619033] [2023-08-26 22:11:24,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 22:11:24,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 22:11:24,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 22:11:24,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 22:11:24,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 22:11:24,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1365619033] [2023-08-26 22:11:24,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1365619033] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 22:11:24,772 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 22:11:24,772 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 22:11:24,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267263783] [2023-08-26 22:11:24,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 22:11:24,772 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-26 22:11:24,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 22:11:24,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-26 22:11:24,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-26 22:11:24,776 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 91 [2023-08-26 22:11:24,776 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 23 places, 16 transitions, 56 flow. Second operand has 4 states, 4 states have (on average 46.25) internal successors, (185), 4 states have internal predecessors, (185), 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) [2023-08-26 22:11:24,776 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 22:11:24,776 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 91 [2023-08-26 22:11:24,776 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 22:11:24,815 INFO L124 PetriNetUnfolderBase]: 0/20 cut-off events. [2023-08-26 22:11:24,815 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 22:11:24,815 INFO L83 FinitePrefix]: Finished finitePrefix Result has 57 conditions, 20 events. 0/20 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 21 event pairs, 0 based on Foata normal form. 2/22 useless extension candidates. Maximal degree in co-relation 0. Up to 12 conditions per place. [2023-08-26 22:11:24,815 INFO L140 encePairwiseOnDemand]: 86/91 looper letters, 15 selfloop transitions, 3 changer transitions 2/20 dead transitions. [2023-08-26 22:11:24,816 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 20 transitions, 104 flow [2023-08-26 22:11:24,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-26 22:11:24,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-26 22:11:24,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 198 transitions. [2023-08-26 22:11:24,817 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5439560439560439 [2023-08-26 22:11:24,817 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 198 transitions. [2023-08-26 22:11:24,817 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 198 transitions. [2023-08-26 22:11:24,817 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 22:11:24,818 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 198 transitions. [2023-08-26 22:11:24,819 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 49.5) internal successors, (198), 4 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) [2023-08-26 22:11:24,821 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 91.0) internal successors, (455), 5 states have internal predecessors, (455), 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) [2023-08-26 22:11:24,821 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 91.0) internal successors, (455), 5 states have internal predecessors, (455), 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) [2023-08-26 22:11:24,821 INFO L175 Difference]: Start difference. First operand has 23 places, 16 transitions, 56 flow. Second operand 4 states and 198 transitions. [2023-08-26 22:11:24,821 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 20 transitions, 104 flow [2023-08-26 22:11:24,822 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 20 transitions, 98 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-26 22:11:24,823 INFO L231 Difference]: Finished difference. Result has 23 places, 14 transitions, 50 flow [2023-08-26 22:11:24,823 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=44, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=14, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=50, PETRI_PLACES=23, PETRI_TRANSITIONS=14} [2023-08-26 22:11:24,824 INFO L281 CegarLoopForPetriNet]: 20 programPoint places, 3 predicate places. [2023-08-26 22:11:24,824 INFO L495 AbstractCegarLoop]: Abstraction has has 23 places, 14 transitions, 50 flow [2023-08-26 22:11:24,824 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 46.25) internal successors, (185), 4 states have internal predecessors, (185), 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) [2023-08-26 22:11:24,825 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 22:11:24,825 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 22:11:24,825 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-26 22:11:24,825 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-26 22:11:24,826 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 22:11:24,826 INFO L85 PathProgramCache]: Analyzing trace with hash 2036111428, now seen corresponding path program 1 times [2023-08-26 22:11:24,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 22:11:24,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [980495565] [2023-08-26 22:11:24,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 22:11:24,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 22:11:24,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 22:11:24,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 22:11:24,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 22:11:24,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [980495565] [2023-08-26 22:11:24,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [980495565] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 22:11:24,891 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 22:11:24,891 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 22:11:24,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276103973] [2023-08-26 22:11:24,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 22:11:24,891 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-26 22:11:24,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 22:11:24,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-26 22:11:24,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-26 22:11:24,893 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 91 [2023-08-26 22:11:24,893 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 23 places, 14 transitions, 50 flow. Second operand has 4 states, 4 states have (on average 46.5) internal successors, (186), 4 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) [2023-08-26 22:11:24,893 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 22:11:24,893 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 91 [2023-08-26 22:11:24,894 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 22:11:24,919 INFO L124 PetriNetUnfolderBase]: 0/18 cut-off events. [2023-08-26 22:11:24,919 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-26 22:11:24,919 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51 conditions, 18 events. 0/18 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 15 event pairs, 0 based on Foata normal form. 2/20 useless extension candidates. Maximal degree in co-relation 0. Up to 10 conditions per place. [2023-08-26 22:11:24,919 INFO L140 encePairwiseOnDemand]: 86/91 looper letters, 0 selfloop transitions, 0 changer transitions 18/18 dead transitions. [2023-08-26 22:11:24,919 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 18 transitions, 92 flow [2023-08-26 22:11:24,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-26 22:11:24,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-26 22:11:24,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 196 transitions. [2023-08-26 22:11:24,920 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5384615384615384 [2023-08-26 22:11:24,921 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 196 transitions. [2023-08-26 22:11:24,921 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 196 transitions. [2023-08-26 22:11:24,921 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 22:11:24,921 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 196 transitions. [2023-08-26 22:11:24,921 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 49.0) internal successors, (196), 4 states have internal predecessors, (196), 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) [2023-08-26 22:11:24,923 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 91.0) internal successors, (455), 5 states have internal predecessors, (455), 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) [2023-08-26 22:11:24,923 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 91.0) internal successors, (455), 5 states have internal predecessors, (455), 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) [2023-08-26 22:11:24,923 INFO L175 Difference]: Start difference. First operand has 23 places, 14 transitions, 50 flow. Second operand 4 states and 196 transitions. [2023-08-26 22:11:24,923 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 18 transitions, 92 flow [2023-08-26 22:11:24,923 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 21 places, 18 transitions, 85 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-26 22:11:24,924 INFO L231 Difference]: Finished difference. Result has 21 places, 0 transitions, 0 flow [2023-08-26 22:11:24,924 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=35, PETRI_DIFFERENCE_MINUEND_PLACES=18, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=12, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=21, PETRI_TRANSITIONS=0} [2023-08-26 22:11:24,925 INFO L281 CegarLoopForPetriNet]: 20 programPoint places, 1 predicate places. [2023-08-26 22:11:24,925 INFO L495 AbstractCegarLoop]: Abstraction has has 21 places, 0 transitions, 0 flow [2023-08-26 22:11:24,925 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 46.5) internal successors, (186), 4 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) [2023-08-26 22:11:24,929 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 7 remaining) [2023-08-26 22:11:24,929 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 7 remaining) [2023-08-26 22:11:24,929 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 7 remaining) [2023-08-26 22:11:24,929 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 7 remaining) [2023-08-26 22:11:24,929 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 7 remaining) [2023-08-26 22:11:24,930 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 7 remaining) [2023-08-26 22:11:24,930 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 7 remaining) [2023-08-26 22:11:24,930 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-26 22:11:24,930 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-08-26 22:11:24,935 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-26 22:11:24,935 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-26 22:11:24,940 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.08 10:11:24 BasicIcfg [2023-08-26 22:11:24,940 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-26 22:11:24,941 INFO L158 Benchmark]: Toolchain (without parser) took 2884.75ms. Allocated memory was 360.7MB in the beginning and 471.9MB in the end (delta: 111.1MB). Free memory was 316.9MB in the beginning and 425.0MB in the end (delta: -108.1MB). Peak memory consumption was 3.5MB. Max. memory is 16.0GB. [2023-08-26 22:11:24,941 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 360.7MB. Free memory is still 337.8MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-26 22:11:24,941 INFO L158 Benchmark]: CACSL2BoogieTranslator took 402.55ms. Allocated memory is still 360.7MB. Free memory was 316.4MB in the beginning and 333.1MB in the end (delta: -16.7MB). Peak memory consumption was 29.6MB. Max. memory is 16.0GB. [2023-08-26 22:11:24,941 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.75ms. Allocated memory is still 360.7MB. Free memory was 333.1MB in the beginning and 331.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-26 22:11:24,942 INFO L158 Benchmark]: Boogie Preprocessor took 25.20ms. Allocated memory is still 360.7MB. Free memory was 331.0MB in the beginning and 329.7MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-26 22:11:24,945 INFO L158 Benchmark]: RCFGBuilder took 297.02ms. Allocated memory is still 360.7MB. Free memory was 328.9MB in the beginning and 316.3MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. [2023-08-26 22:11:24,945 INFO L158 Benchmark]: TraceAbstraction took 2116.86ms. Allocated memory was 360.7MB in the beginning and 471.9MB in the end (delta: 111.1MB). Free memory was 315.6MB in the beginning and 425.0MB in the end (delta: -109.4MB). Peak memory consumption was 1.2MB. Max. memory is 16.0GB. [2023-08-26 22:11:24,946 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 360.7MB. Free memory is still 337.8MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 402.55ms. Allocated memory is still 360.7MB. Free memory was 316.4MB in the beginning and 333.1MB in the end (delta: -16.7MB). Peak memory consumption was 29.6MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 39.75ms. Allocated memory is still 360.7MB. Free memory was 333.1MB in the beginning and 331.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 25.20ms. Allocated memory is still 360.7MB. Free memory was 331.0MB in the beginning and 329.7MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.0GB. * RCFGBuilder took 297.02ms. Allocated memory is still 360.7MB. Free memory was 328.9MB in the beginning and 316.3MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. * TraceAbstraction took 2116.86ms. Allocated memory was 360.7MB in the beginning and 471.9MB in the end (delta: 111.1MB). Free memory was 315.6MB in the beginning and 425.0MB in the end (delta: -109.4MB). Peak memory consumption was 1.2MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 244]: Unsoundness Warning unspecified type, defaulting to int C: short [244] - GenericResultAtLocation [Line: 244]: Unsoundness Warning unspecified type, defaulting to int C: short [244] - GenericResultAtLocation [Line: 736]: Unsoundness Warning unspecified type, defaulting to int C: unsigned short [736] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.3s, 53 PlacesBefore, 20 PlacesAfterwards, 49 TransitionsBefore, 16 TransitionsAfterwards, 242 CoEnabledTransitionPairs, 6 FixpointIterations, 25 TrivialSequentialCompositions, 9 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 34 TotalNumberOfCompositions, 1222 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 834, independent: 682, independent conditional: 0, independent unconditional: 682, dependent: 152, dependent conditional: 0, dependent unconditional: 152, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 136, independent: 120, independent conditional: 0, independent unconditional: 120, dependent: 16, dependent conditional: 0, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 834, independent: 562, independent conditional: 0, independent unconditional: 562, dependent: 136, dependent conditional: 0, dependent unconditional: 136, unknown: 136, unknown conditional: 0, unknown unconditional: 136] , Statistics on independence cache: Total cache size (in pairs): 47, Positive cache size: 36, Positive conditional cache size: 0, Positive unconditional cache size: 36, Negative cache size: 11, Negative conditional cache size: 0, Negative unconditional cache size: 11, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 930]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 930]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 922]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 922]: 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 3 procedures, 71 locations, 7 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: 2.0s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 26 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 26 mSDsluCounter, 3 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 101 IncrementalHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 3 mSDtfsCounter, 101 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=56occurred in iteration=2, InterpolantAutomatonStates: 14, 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, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 31 NumberOfCodeBlocks, 31 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 27 ConstructedInterpolants, 0 QuantifiedInterpolants, 73 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-26 22:11:24,961 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...