/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 INSUFFICIENT_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/goblint-regression/13-privatized_03-priv_inv.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-27 04:49:35,178 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-27 04:49:35,255 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 04:49:35,260 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-27 04:49:35,261 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-27 04:49:35,297 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-27 04:49:35,298 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-27 04:49:35,298 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-27 04:49:35,299 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-27 04:49:35,303 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-27 04:49:35,303 INFO L153 SettingsManager]: * Use SBE=true [2023-08-27 04:49:35,303 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-27 04:49:35,304 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-27 04:49:35,305 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-27 04:49:35,305 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-27 04:49:35,305 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-27 04:49:35,305 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-27 04:49:35,306 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-27 04:49:35,306 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-27 04:49:35,306 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-27 04:49:35,306 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-27 04:49:35,307 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-27 04:49:35,307 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-27 04:49:35,307 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-27 04:49:35,308 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-27 04:49:35,308 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-27 04:49:35,308 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-27 04:49:35,308 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-27 04:49:35,309 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-27 04:49:35,309 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-27 04:49:35,310 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-27 04:49:35,310 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-27 04:49:35,310 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-27 04:49:35,311 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-27 04:49:35,311 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-27 04:49:35,311 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> INSUFFICIENT_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2023-08-27 04:49:35,664 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-27 04:49:35,687 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-27 04:49:35,690 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-27 04:49:35,691 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-27 04:49:35,691 INFO L274 PluginConnector]: CDTParser initialized [2023-08-27 04:49:35,692 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_03-priv_inv.i [2023-08-27 04:49:36,901 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-27 04:49:37,133 INFO L384 CDTParser]: Found 1 translation units. [2023-08-27 04:49:37,134 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_03-priv_inv.i [2023-08-27 04:49:37,152 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1cc8e4ce0/ce998564ed5c4744a85120180b4d565b/FLAG20eefb67e [2023-08-27 04:49:37,167 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1cc8e4ce0/ce998564ed5c4744a85120180b4d565b [2023-08-27 04:49:37,172 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-27 04:49:37,173 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-27 04:49:37,176 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-27 04:49:37,176 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-27 04:49:37,178 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-27 04:49:37,180 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 04:49:37" (1/1) ... [2023-08-27 04:49:37,181 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16a631f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:49:37, skipping insertion in model container [2023-08-27 04:49:37,181 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 04:49:37" (1/1) ... [2023-08-27 04:49:37,227 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-27 04:49:37,509 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-27 04:49:37,522 INFO L201 MainTranslator]: Completed pre-run [2023-08-27 04:49:37,545 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [244] [2023-08-27 04:49:37,547 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [244] [2023-08-27 04:49:37,563 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-27 04:49:37,600 INFO L206 MainTranslator]: Completed translation [2023-08-27 04:49:37,601 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:49:37 WrapperNode [2023-08-27 04:49:37,601 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-27 04:49:37,602 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-27 04:49:37,602 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-27 04:49:37,602 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-27 04:49:37,609 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:49:37" (1/1) ... [2023-08-27 04:49:37,636 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:49:37" (1/1) ... [2023-08-27 04:49:37,662 INFO L138 Inliner]: procedures = 165, calls = 34, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 66 [2023-08-27 04:49:37,663 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-27 04:49:37,663 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-27 04:49:37,663 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-27 04:49:37,664 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-27 04:49:37,670 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:49:37" (1/1) ... [2023-08-27 04:49:37,670 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:49:37" (1/1) ... [2023-08-27 04:49:37,677 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:49:37" (1/1) ... [2023-08-27 04:49:37,677 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:49:37" (1/1) ... [2023-08-27 04:49:37,686 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:49:37" (1/1) ... [2023-08-27 04:49:37,688 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:49:37" (1/1) ... [2023-08-27 04:49:37,693 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:49:37" (1/1) ... [2023-08-27 04:49:37,694 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:49:37" (1/1) ... [2023-08-27 04:49:37,696 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-27 04:49:37,697 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-27 04:49:37,697 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-27 04:49:37,697 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-27 04:49:37,702 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:49:37" (1/1) ... [2023-08-27 04:49:37,707 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-27 04:49:37,723 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-27 04:49:37,738 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 04:49:37,746 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 04:49:37,771 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-27 04:49:37,772 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-27 04:49:37,772 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-27 04:49:37,773 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-27 04:49:37,773 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-27 04:49:37,773 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-27 04:49:37,774 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-27 04:49:37,774 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-27 04:49:37,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-27 04:49:37,774 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-27 04:49:37,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-27 04:49:37,775 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 04:49:37,886 INFO L236 CfgBuilder]: Building ICFG [2023-08-27 04:49:37,888 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-27 04:49:38,024 INFO L277 CfgBuilder]: Performing block encoding [2023-08-27 04:49:38,030 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-27 04:49:38,031 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-27 04:49:38,032 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 04:49:38 BoogieIcfgContainer [2023-08-27 04:49:38,032 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-27 04:49:38,034 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-27 04:49:38,034 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-27 04:49:38,037 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-27 04:49:38,038 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.08 04:49:37" (1/3) ... [2023-08-27 04:49:38,038 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d462349 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 04:49:38, skipping insertion in model container [2023-08-27 04:49:38,038 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:49:37" (2/3) ... [2023-08-27 04:49:38,039 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d462349 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 04:49:38, skipping insertion in model container [2023-08-27 04:49:38,039 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 04:49:38" (3/3) ... [2023-08-27 04:49:38,040 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_03-priv_inv.i [2023-08-27 04:49:38,054 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-27 04:49:38,054 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-08-27 04:49:38,055 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-27 04:49:38,112 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-08-27 04:49:38,141 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 83 places, 82 transitions, 172 flow [2023-08-27 04:49:38,214 INFO L124 PetriNetUnfolderBase]: 3/81 cut-off events. [2023-08-27 04:49:38,214 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-08-27 04:49:38,219 INFO L83 FinitePrefix]: Finished finitePrefix Result has 86 conditions, 81 events. 3/81 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 49 event pairs, 0 based on Foata normal form. 0/76 useless extension candidates. Maximal degree in co-relation 49. Up to 2 conditions per place. [2023-08-27 04:49:38,220 INFO L82 GeneralOperation]: Start removeDead. Operand has 83 places, 82 transitions, 172 flow [2023-08-27 04:49:38,226 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 75 places, 74 transitions, 151 flow [2023-08-27 04:49:38,231 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 04:49:38,244 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 75 places, 74 transitions, 151 flow [2023-08-27 04:49:38,252 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 75 places, 74 transitions, 151 flow [2023-08-27 04:49:38,253 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 75 places, 74 transitions, 151 flow [2023-08-27 04:49:38,283 INFO L124 PetriNetUnfolderBase]: 3/74 cut-off events. [2023-08-27 04:49:38,284 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 04:49:38,284 INFO L83 FinitePrefix]: Finished finitePrefix Result has 78 conditions, 74 events. 3/74 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 49 event pairs, 0 based on Foata normal form. 0/69 useless extension candidates. Maximal degree in co-relation 49. Up to 2 conditions per place. [2023-08-27 04:49:38,285 INFO L119 LiptonReduction]: Number of co-enabled transitions 286 [2023-08-27 04:49:41,650 INFO L134 LiptonReduction]: Checked pairs total: 1563 [2023-08-27 04:49:41,650 INFO L136 LiptonReduction]: Total number of compositions: 69 [2023-08-27 04:49:41,662 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-27 04:49:41,668 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;@15dc2f4d, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 04:49:41,668 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-08-27 04:49:41,669 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 04:49:41,669 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2023-08-27 04:49:41,670 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 04:49:41,670 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 04:49:41,670 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-27 04:49:41,671 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-27 04:49:41,680 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 04:49:41,682 INFO L85 PathProgramCache]: Analyzing trace with hash 287, now seen corresponding path program 1 times [2023-08-27 04:49:41,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 04:49:41,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937486484] [2023-08-27 04:49:41,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 04:49:41,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 04:49:41,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 04:49:41,794 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 04:49:41,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 04:49:41,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1937486484] [2023-08-27 04:49:41,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1937486484] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 04:49:41,796 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 04:49:41,796 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-27 04:49:41,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712460502] [2023-08-27 04:49:41,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 04:49:41,804 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-27 04:49:41,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 04:49:41,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-27 04:49:41,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-27 04:49:41,830 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 151 [2023-08-27 04:49:41,833 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 19 places, 17 transitions, 37 flow. Second operand has 2 states, 2 states have (on average 78.5) internal successors, (157), 2 states have internal predecessors, (157), 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 04:49:41,834 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 04:49:41,834 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 151 [2023-08-27 04:49:41,835 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 04:49:41,864 INFO L124 PetriNetUnfolderBase]: 21/55 cut-off events. [2023-08-27 04:49:41,864 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 04:49:41,864 INFO L83 FinitePrefix]: Finished finitePrefix Result has 107 conditions, 55 events. 21/55 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 151 event pairs, 16 based on Foata normal form. 0/46 useless extension candidates. Maximal degree in co-relation 98. Up to 48 conditions per place. [2023-08-27 04:49:41,865 INFO L140 encePairwiseOnDemand]: 149/151 looper letters, 10 selfloop transitions, 0 changer transitions 1/14 dead transitions. [2023-08-27 04:49:41,865 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 18 places, 14 transitions, 53 flow [2023-08-27 04:49:41,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-27 04:49:41,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-27 04:49:41,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 169 transitions. [2023-08-27 04:49:41,880 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5596026490066225 [2023-08-27 04:49:41,881 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 169 transitions. [2023-08-27 04:49:41,881 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 169 transitions. [2023-08-27 04:49:41,883 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 04:49:41,885 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 169 transitions. [2023-08-27 04:49:41,890 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 84.5) internal successors, (169), 2 states have internal predecessors, (169), 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 04:49:41,895 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 151.0) internal successors, (453), 3 states have internal predecessors, (453), 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 04:49:41,896 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 151.0) internal successors, (453), 3 states have internal predecessors, (453), 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 04:49:41,898 INFO L175 Difference]: Start difference. First operand has 19 places, 17 transitions, 37 flow. Second operand 2 states and 169 transitions. [2023-08-27 04:49:41,899 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 18 places, 14 transitions, 53 flow [2023-08-27 04:49:41,900 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 17 places, 14 transitions, 52 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 04:49:41,901 INFO L231 Difference]: Finished difference. Result has 17 places, 13 transitions, 28 flow [2023-08-27 04:49:41,903 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=151, PETRI_DIFFERENCE_MINUEND_FLOW=30, PETRI_DIFFERENCE_MINUEND_PLACES=16, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=14, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=28, PETRI_PLACES=17, PETRI_TRANSITIONS=13} [2023-08-27 04:49:41,907 INFO L281 CegarLoopForPetriNet]: 19 programPoint places, -2 predicate places. [2023-08-27 04:49:41,907 INFO L495 AbstractCegarLoop]: Abstraction has has 17 places, 13 transitions, 28 flow [2023-08-27 04:49:41,908 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 78.5) internal successors, (157), 2 states have internal predecessors, (157), 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 04:49:41,908 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 04:49:41,908 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-27 04:49:41,908 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-27 04:49:41,908 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-27 04:49:41,909 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 04:49:41,910 INFO L85 PathProgramCache]: Analyzing trace with hash 269892129, now seen corresponding path program 1 times [2023-08-27 04:49:41,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 04:49:41,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283034251] [2023-08-27 04:49:41,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 04:49:41,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 04:49:41,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 04:49:42,020 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 04:49:42,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 04:49:42,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [283034251] [2023-08-27 04:49:42,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [283034251] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 04:49:42,021 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 04:49:42,021 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-27 04:49:42,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095393767] [2023-08-27 04:49:42,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 04:49:42,022 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 04:49:42,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 04:49:42,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 04:49:42,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 04:49:42,024 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 151 [2023-08-27 04:49:42,025 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 17 places, 13 transitions, 28 flow. Second operand has 3 states, 3 states have (on average 69.66666666666667) internal successors, (209), 3 states have internal predecessors, (209), 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 04:49:42,025 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 04:49:42,025 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 151 [2023-08-27 04:49:42,025 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 04:49:42,056 INFO L124 PetriNetUnfolderBase]: 19/51 cut-off events. [2023-08-27 04:49:42,056 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 04:49:42,056 INFO L83 FinitePrefix]: Finished finitePrefix Result has 104 conditions, 51 events. 19/51 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 143 event pairs, 8 based on Foata normal form. 0/47 useless extension candidates. Maximal degree in co-relation 101. Up to 32 conditions per place. [2023-08-27 04:49:42,057 INFO L140 encePairwiseOnDemand]: 145/151 looper letters, 8 selfloop transitions, 2 changer transitions 8/19 dead transitions. [2023-08-27 04:49:42,057 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 18 places, 19 transitions, 76 flow [2023-08-27 04:49:42,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 04:49:42,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 04:49:42,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 224 transitions. [2023-08-27 04:49:42,059 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49448123620309054 [2023-08-27 04:49:42,059 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 224 transitions. [2023-08-27 04:49:42,059 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 224 transitions. [2023-08-27 04:49:42,060 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 04:49:42,060 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 224 transitions. [2023-08-27 04:49:42,061 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 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 04:49:42,062 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 151.0) internal successors, (604), 4 states have internal predecessors, (604), 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 04:49:42,062 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 151.0) internal successors, (604), 4 states have internal predecessors, (604), 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 04:49:42,062 INFO L175 Difference]: Start difference. First operand has 17 places, 13 transitions, 28 flow. Second operand 3 states and 224 transitions. [2023-08-27 04:49:42,062 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 18 places, 19 transitions, 76 flow [2023-08-27 04:49:42,063 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 18 places, 19 transitions, 76 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-27 04:49:42,063 INFO L231 Difference]: Finished difference. Result has 19 places, 9 transitions, 28 flow [2023-08-27 04:49:42,063 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=151, PETRI_DIFFERENCE_MINUEND_FLOW=28, PETRI_DIFFERENCE_MINUEND_PLACES=16, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=13, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=28, PETRI_PLACES=19, PETRI_TRANSITIONS=9} [2023-08-27 04:49:42,064 INFO L281 CegarLoopForPetriNet]: 19 programPoint places, 0 predicate places. [2023-08-27 04:49:42,064 INFO L495 AbstractCegarLoop]: Abstraction has has 19 places, 9 transitions, 28 flow [2023-08-27 04:49:42,065 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 69.66666666666667) internal successors, (209), 3 states have internal predecessors, (209), 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 04:49:42,065 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 04:49:42,065 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 04:49:42,065 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-27 04:49:42,065 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-27 04:49:42,066 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 04:49:42,066 INFO L85 PathProgramCache]: Analyzing trace with hash 969848224, now seen corresponding path program 1 times [2023-08-27 04:49:42,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 04:49:42,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256679367] [2023-08-27 04:49:42,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 04:49:42,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 04:49:42,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 04:49:42,142 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 04:49:42,142 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 04:49:42,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1256679367] [2023-08-27 04:49:42,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1256679367] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 04:49:42,143 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 04:49:42,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-27 04:49:42,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621366329] [2023-08-27 04:49:42,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 04:49:42,143 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 04:49:42,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 04:49:42,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 04:49:42,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 04:49:42,145 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 151 [2023-08-27 04:49:42,145 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 19 places, 9 transitions, 28 flow. Second operand has 3 states, 3 states have (on average 70.66666666666667) internal successors, (212), 3 states have internal predecessors, (212), 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 04:49:42,146 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 04:49:42,146 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 151 [2023-08-27 04:49:42,146 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 04:49:42,167 INFO L124 PetriNetUnfolderBase]: 2/13 cut-off events. [2023-08-27 04:49:42,167 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2023-08-27 04:49:42,167 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37 conditions, 13 events. 2/13 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 7 event pairs, 1 based on Foata normal form. 2/15 useless extension candidates. Maximal degree in co-relation 32. Up to 7 conditions per place. [2023-08-27 04:49:42,167 INFO L140 encePairwiseOnDemand]: 148/151 looper letters, 7 selfloop transitions, 2 changer transitions 0/10 dead transitions. [2023-08-27 04:49:42,168 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 18 places, 10 transitions, 48 flow [2023-08-27 04:49:42,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 04:49:42,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 04:49:42,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 214 transitions. [2023-08-27 04:49:42,173 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47240618101545256 [2023-08-27 04:49:42,173 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 214 transitions. [2023-08-27 04:49:42,173 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 214 transitions. [2023-08-27 04:49:42,174 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 04:49:42,174 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 214 transitions. [2023-08-27 04:49:42,175 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 71.33333333333333) internal successors, (214), 3 states have internal predecessors, (214), 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 04:49:42,178 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 151.0) internal successors, (604), 4 states have internal predecessors, (604), 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 04:49:42,179 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 151.0) internal successors, (604), 4 states have internal predecessors, (604), 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 04:49:42,179 INFO L175 Difference]: Start difference. First operand has 19 places, 9 transitions, 28 flow. Second operand 3 states and 214 transitions. [2023-08-27 04:49:42,179 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 18 places, 10 transitions, 48 flow [2023-08-27 04:49:42,179 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 16 places, 10 transitions, 44 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-27 04:49:42,180 INFO L231 Difference]: Finished difference. Result has 17 places, 9 transitions, 32 flow [2023-08-27 04:49:42,180 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=151, PETRI_DIFFERENCE_MINUEND_FLOW=24, PETRI_DIFFERENCE_MINUEND_PLACES=14, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=9, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=7, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=32, PETRI_PLACES=17, PETRI_TRANSITIONS=9} [2023-08-27 04:49:42,181 INFO L281 CegarLoopForPetriNet]: 19 programPoint places, -2 predicate places. [2023-08-27 04:49:42,181 INFO L495 AbstractCegarLoop]: Abstraction has has 17 places, 9 transitions, 32 flow [2023-08-27 04:49:42,182 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 70.66666666666667) internal successors, (212), 3 states have internal predecessors, (212), 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 04:49:42,182 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 04:49:42,182 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 04:49:42,182 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-27 04:49:42,183 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-27 04:49:42,183 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 04:49:42,183 INFO L85 PathProgramCache]: Analyzing trace with hash 965437234, now seen corresponding path program 2 times [2023-08-27 04:49:42,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 04:49:42,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563647710] [2023-08-27 04:49:42,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 04:49:42,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 04:49:42,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 04:49:42,361 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 04:49:42,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 04:49:42,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1563647710] [2023-08-27 04:49:42,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1563647710] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 04:49:42,363 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 04:49:42,364 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-27 04:49:42,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103347279] [2023-08-27 04:49:42,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 04:49:42,364 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-27 04:49:42,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 04:49:42,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-27 04:49:42,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-27 04:49:42,367 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 151 [2023-08-27 04:49:42,367 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 17 places, 9 transitions, 32 flow. Second operand has 4 states, 4 states have (on average 59.25) internal successors, (237), 4 states have internal predecessors, (237), 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 04:49:42,367 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 04:49:42,367 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 151 [2023-08-27 04:49:42,367 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 04:49:42,390 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2023-08-27 04:49:42,390 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-08-27 04:49:42,391 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21 conditions, 5 events. 0/5 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 2 event pairs, 0 based on Foata normal form. 3/8 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2023-08-27 04:49:42,391 INFO L140 encePairwiseOnDemand]: 147/151 looper letters, 0 selfloop transitions, 0 changer transitions 5/5 dead transitions. [2023-08-27 04:49:42,391 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 17 places, 5 transitions, 29 flow [2023-08-27 04:49:42,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-27 04:49:42,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-27 04:49:42,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 293 transitions. [2023-08-27 04:49:42,393 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3880794701986755 [2023-08-27 04:49:42,393 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 293 transitions. [2023-08-27 04:49:42,393 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 293 transitions. [2023-08-27 04:49:42,394 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 04:49:42,394 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 293 transitions. [2023-08-27 04:49:42,395 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 58.6) internal successors, (293), 5 states have internal predecessors, (293), 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 04:49:42,396 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 151.0) internal successors, (906), 6 states have internal predecessors, (906), 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 04:49:42,396 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 151.0) internal successors, (906), 6 states have internal predecessors, (906), 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 04:49:42,396 INFO L175 Difference]: Start difference. First operand has 17 places, 9 transitions, 32 flow. Second operand 5 states and 293 transitions. [2023-08-27 04:49:42,396 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 17 places, 5 transitions, 29 flow [2023-08-27 04:49:42,397 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 13 places, 5 transitions, 22 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-27 04:49:42,397 INFO L231 Difference]: Finished difference. Result has 13 places, 0 transitions, 0 flow [2023-08-27 04:49:42,397 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=151, PETRI_DIFFERENCE_MINUEND_FLOW=12, PETRI_DIFFERENCE_MINUEND_PLACES=9, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=5, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=5, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=13, PETRI_TRANSITIONS=0} [2023-08-27 04:49:42,399 INFO L281 CegarLoopForPetriNet]: 19 programPoint places, -6 predicate places. [2023-08-27 04:49:42,399 INFO L495 AbstractCegarLoop]: Abstraction has has 13 places, 0 transitions, 0 flow [2023-08-27 04:49:42,399 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 59.25) internal successors, (237), 4 states have internal predecessors, (237), 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 04:49:42,401 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (2 of 3 remaining) [2023-08-27 04:49:42,402 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONASSERT (1 of 3 remaining) [2023-08-27 04:49:42,402 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2023-08-27 04:49:42,404 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-27 04:49:42,405 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2023-08-27 04:49:42,410 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-27 04:49:42,410 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-27 04:49:42,416 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.08 04:49:42 BasicIcfg [2023-08-27 04:49:42,417 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-27 04:49:42,418 INFO L158 Benchmark]: Toolchain (without parser) took 5243.92ms. Allocated memory was 333.4MB in the beginning and 507.5MB in the end (delta: 174.1MB). Free memory was 290.8MB in the beginning and 447.9MB in the end (delta: -157.1MB). Peak memory consumption was 20.1MB. Max. memory is 16.0GB. [2023-08-27 04:49:42,418 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 333.4MB. Free memory was 311.7MB in the beginning and 311.5MB in the end (delta: 157.3kB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-27 04:49:42,418 INFO L158 Benchmark]: CACSL2BoogieTranslator took 425.51ms. Allocated memory is still 333.4MB. Free memory was 290.8MB in the beginning and 270.8MB in the end (delta: 20.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. [2023-08-27 04:49:42,419 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.56ms. Allocated memory is still 333.4MB. Free memory was 270.8MB in the beginning and 268.8MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-27 04:49:42,421 INFO L158 Benchmark]: Boogie Preprocessor took 32.80ms. Allocated memory is still 333.4MB. Free memory was 268.8MB in the beginning and 267.8MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-27 04:49:42,423 INFO L158 Benchmark]: RCFGBuilder took 335.73ms. Allocated memory is still 333.4MB. Free memory was 267.8MB in the beginning and 253.1MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. [2023-08-27 04:49:42,425 INFO L158 Benchmark]: TraceAbstraction took 4382.39ms. Allocated memory was 333.4MB in the beginning and 507.5MB in the end (delta: 174.1MB). Free memory was 252.0MB in the beginning and 447.9MB in the end (delta: -195.9MB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-27 04:49:42,429 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 333.4MB. Free memory was 311.7MB in the beginning and 311.5MB in the end (delta: 157.3kB). There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 425.51ms. Allocated memory is still 333.4MB. Free memory was 290.8MB in the beginning and 270.8MB in the end (delta: 20.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 60.56ms. Allocated memory is still 333.4MB. Free memory was 270.8MB in the beginning and 268.8MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 32.80ms. Allocated memory is still 333.4MB. Free memory was 268.8MB in the beginning and 267.8MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.0GB. * RCFGBuilder took 335.73ms. Allocated memory is still 333.4MB. Free memory was 267.8MB in the beginning and 253.1MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. * TraceAbstraction took 4382.39ms. Allocated memory was 333.4MB in the beginning and 507.5MB in the end (delta: 174.1MB). Free memory was 252.0MB in the beginning and 447.9MB in the end (delta: -195.9MB). There was no memory consumed. 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] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.4s, 75 PlacesBefore, 19 PlacesAfterwards, 74 TransitionsBefore, 17 TransitionsAfterwards, 286 CoEnabledTransitionPairs, 7 FixpointIterations, 50 TrivialSequentialCompositions, 13 ConcurrentSequentialCompositions, 3 TrivialYvCompositions, 2 ConcurrentYvCompositions, 1 ChoiceCompositions, 69 TotalNumberOfCompositions, 1563 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 544, independent: 353, independent conditional: 0, independent unconditional: 353, dependent: 191, dependent conditional: 0, dependent unconditional: 191, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 177, independent: 146, independent conditional: 0, independent unconditional: 146, dependent: 31, dependent conditional: 0, dependent unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 544, independent: 207, independent conditional: 0, independent unconditional: 207, dependent: 160, dependent conditional: 0, dependent unconditional: 160, unknown: 177, unknown conditional: 0, unknown unconditional: 177] , Statistics on independence cache: Total cache size (in pairs): 38, Positive cache size: 22, Positive conditional cache size: 0, Positive unconditional cache size: 22, Negative cache size: 16, Negative conditional cache size: 0, Negative unconditional cache size: 16, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 704]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 708]: 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 3 procedures, 92 locations, 3 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: 4.3s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.5s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 8 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 8 mSDsluCounter, 1 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 58 IncrementalHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 1 mSDtfsCounter, 58 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=37occurred in iteration=0, InterpolantAutomatonStates: 13, 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, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 38 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 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-27 04:49:42,456 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...