/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf --traceabstraction.order.of.the.error.locations.to.be.checked PROGRAM_FIRST -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true -i ../../../trunk/examples/svcomp/pthread-ext/26_stack_cas_longer-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-27 09:44:56,898 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-27 09:44:56,970 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 09:44:56,974 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-27 09:44:56,975 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-27 09:44:57,003 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-27 09:44:57,004 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-27 09:44:57,004 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-27 09:44:57,005 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-27 09:44:57,008 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-27 09:44:57,009 INFO L153 SettingsManager]: * Use SBE=true [2023-08-27 09:44:57,009 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-27 09:44:57,009 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-27 09:44:57,010 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-27 09:44:57,011 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-27 09:44:57,011 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-27 09:44:57,011 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-27 09:44:57,011 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-27 09:44:57,011 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-27 09:44:57,012 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-27 09:44:57,012 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-27 09:44:57,012 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-27 09:44:57,012 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-27 09:44:57,012 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-27 09:44:57,013 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-27 09:44:57,013 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-27 09:44:57,013 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-27 09:44:57,013 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-27 09:44:57,013 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-27 09:44:57,014 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-27 09:44:57,015 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-27 09:44:57,015 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-27 09:44:57,015 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-27 09:44:57,015 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-27 09:44:57,015 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-27 09:44:57,016 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> PROGRAM_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2023-08-27 09:44:57,320 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-27 09:44:57,343 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-27 09:44:57,345 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-27 09:44:57,346 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-27 09:44:57,347 INFO L274 PluginConnector]: CDTParser initialized [2023-08-27 09:44:57,348 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/26_stack_cas_longer-1.i [2023-08-27 09:44:58,463 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-27 09:44:58,764 INFO L384 CDTParser]: Found 1 translation units. [2023-08-27 09:44:58,765 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/26_stack_cas_longer-1.i [2023-08-27 09:44:58,778 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9af8835c7/b802f23194e9469f93dded642a5be7c3/FLAG34caa2bb9 [2023-08-27 09:44:58,791 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9af8835c7/b802f23194e9469f93dded642a5be7c3 [2023-08-27 09:44:58,793 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-27 09:44:58,794 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-27 09:44:58,795 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-27 09:44:58,795 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-27 09:44:58,797 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-27 09:44:58,798 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 09:44:58" (1/1) ... [2023-08-27 09:44:58,799 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@113b97f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 09:44:58, skipping insertion in model container [2023-08-27 09:44:58,799 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 09:44:58" (1/1) ... [2023-08-27 09:44:58,851 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-27 09:44:59,197 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-27 09:44:59,209 INFO L201 MainTranslator]: Completed pre-run [2023-08-27 09:44:59,235 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [254] [2023-08-27 09:44:59,237 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [254] [2023-08-27 09:44:59,270 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-27 09:44:59,308 INFO L206 MainTranslator]: Completed translation [2023-08-27 09:44:59,309 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 09:44:59 WrapperNode [2023-08-27 09:44:59,309 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-27 09:44:59,310 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-27 09:44:59,310 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-27 09:44:59,310 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-27 09:44:59,315 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 09:44:59" (1/1) ... [2023-08-27 09:44:59,348 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 09:44:59" (1/1) ... [2023-08-27 09:44:59,379 INFO L138 Inliner]: procedures = 177, calls = 48, calls flagged for inlining = 17, calls inlined = 20, statements flattened = 201 [2023-08-27 09:44:59,380 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-27 09:44:59,380 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-27 09:44:59,381 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-27 09:44:59,381 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-27 09:44:59,392 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 09:44:59" (1/1) ... [2023-08-27 09:44:59,392 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 09:44:59" (1/1) ... [2023-08-27 09:44:59,410 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 09:44:59" (1/1) ... [2023-08-27 09:44:59,411 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 09:44:59" (1/1) ... [2023-08-27 09:44:59,421 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 09:44:59" (1/1) ... [2023-08-27 09:44:59,425 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 09:44:59" (1/1) ... [2023-08-27 09:44:59,427 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 09:44:59" (1/1) ... [2023-08-27 09:44:59,428 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 09:44:59" (1/1) ... [2023-08-27 09:44:59,442 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-27 09:44:59,443 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-27 09:44:59,443 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-27 09:44:59,443 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-27 09:44:59,444 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 09:44:59" (1/1) ... [2023-08-27 09:44:59,449 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-27 09:44:59,463 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-27 09:44:59,478 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 09:44:59,502 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 09:44:59,520 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-27 09:44:59,520 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2023-08-27 09:44:59,520 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2023-08-27 09:44:59,521 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-27 09:44:59,521 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-27 09:44:59,521 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-27 09:44:59,522 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-27 09:44:59,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-27 09:44:59,522 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-27 09:44:59,522 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-27 09:44:59,523 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 09:44:59,665 INFO L236 CfgBuilder]: Building ICFG [2023-08-27 09:44:59,666 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-27 09:45:00,045 INFO L277 CfgBuilder]: Performing block encoding [2023-08-27 09:45:00,213 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-27 09:45:00,213 INFO L302 CfgBuilder]: Removed 3 assume(true) statements. [2023-08-27 09:45:00,215 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 09:45:00 BoogieIcfgContainer [2023-08-27 09:45:00,215 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-27 09:45:00,219 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-27 09:45:00,219 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-27 09:45:00,222 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-27 09:45:00,223 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.08 09:44:58" (1/3) ... [2023-08-27 09:45:00,223 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d5980fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 09:45:00, skipping insertion in model container [2023-08-27 09:45:00,224 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 09:44:59" (2/3) ... [2023-08-27 09:45:00,224 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d5980fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 09:45:00, skipping insertion in model container [2023-08-27 09:45:00,224 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 09:45:00" (3/3) ... [2023-08-27 09:45:00,225 INFO L112 eAbstractionObserver]: Analyzing ICFG 26_stack_cas_longer-1.i [2023-08-27 09:45:00,241 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-27 09:45:00,241 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2023-08-27 09:45:00,241 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-27 09:45:00,305 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-27 09:45:00,333 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 127 places, 134 transitions, 273 flow [2023-08-27 09:45:00,407 INFO L124 PetriNetUnfolderBase]: 11/144 cut-off events. [2023-08-27 09:45:00,407 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 09:45:00,414 INFO L83 FinitePrefix]: Finished finitePrefix Result has 149 conditions, 144 events. 11/144 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 139 event pairs, 0 based on Foata normal form. 0/120 useless extension candidates. Maximal degree in co-relation 110. Up to 4 conditions per place. [2023-08-27 09:45:00,414 INFO L82 GeneralOperation]: Start removeDead. Operand has 127 places, 134 transitions, 273 flow [2023-08-27 09:45:00,420 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 127 places, 134 transitions, 273 flow [2023-08-27 09:45:00,425 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 09:45:00,437 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 127 places, 134 transitions, 273 flow [2023-08-27 09:45:00,440 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 127 places, 134 transitions, 273 flow [2023-08-27 09:45:00,440 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 127 places, 134 transitions, 273 flow [2023-08-27 09:45:00,465 INFO L124 PetriNetUnfolderBase]: 11/144 cut-off events. [2023-08-27 09:45:00,465 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 09:45:00,466 INFO L83 FinitePrefix]: Finished finitePrefix Result has 149 conditions, 144 events. 11/144 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 139 event pairs, 0 based on Foata normal form. 0/120 useless extension candidates. Maximal degree in co-relation 110. Up to 4 conditions per place. [2023-08-27 09:45:00,468 INFO L119 LiptonReduction]: Number of co-enabled transitions 2548 [2023-08-27 09:45:05,288 INFO L134 LiptonReduction]: Checked pairs total: 2857 [2023-08-27 09:45:05,289 INFO L136 LiptonReduction]: Total number of compositions: 140 [2023-08-27 09:45:05,300 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-27 09:45:05,304 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;@d8276cd, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 09:45:05,305 INFO L358 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2023-08-27 09:45:05,310 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 09:45:05,310 INFO L124 PetriNetUnfolderBase]: 2/16 cut-off events. [2023-08-27 09:45:05,310 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 09:45:05,311 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 09:45:05,311 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 09:45:05,312 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thr1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-08-27 09:45:05,315 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 09:45:05,316 INFO L85 PathProgramCache]: Analyzing trace with hash -1700752710, now seen corresponding path program 1 times [2023-08-27 09:45:05,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 09:45:05,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462244155] [2023-08-27 09:45:05,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 09:45:05,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 09:45:05,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 09:45:05,540 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 09:45:05,540 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 09:45:05,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1462244155] [2023-08-27 09:45:05,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1462244155] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 09:45:05,541 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 09:45:05,541 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-27 09:45:05,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234930744] [2023-08-27 09:45:05,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 09:45:05,549 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 09:45:05,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 09:45:05,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 09:45:05,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 09:45:05,580 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 274 [2023-08-27 09:45:05,585 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 38 transitions, 81 flow. Second operand has 3 states, 3 states have (on average 117.66666666666667) internal successors, (353), 3 states have internal predecessors, (353), 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 09:45:05,585 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 09:45:05,586 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 274 [2023-08-27 09:45:05,587 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 09:45:05,679 INFO L124 PetriNetUnfolderBase]: 52/119 cut-off events. [2023-08-27 09:45:05,679 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 09:45:05,682 INFO L83 FinitePrefix]: Finished finitePrefix Result has 243 conditions, 119 events. 52/119 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 304 event pairs, 2 based on Foata normal form. 0/89 useless extension candidates. Maximal degree in co-relation 228. Up to 108 conditions per place. [2023-08-27 09:45:05,684 INFO L140 encePairwiseOnDemand]: 263/274 looper letters, 27 selfloop transitions, 2 changer transitions 1/31 dead transitions. [2023-08-27 09:45:05,684 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 31 transitions, 127 flow [2023-08-27 09:45:05,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 09:45:05,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 09:45:05,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 385 transitions. [2023-08-27 09:45:05,704 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4683698296836983 [2023-08-27 09:45:05,705 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 385 transitions. [2023-08-27 09:45:05,705 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 385 transitions. [2023-08-27 09:45:05,708 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 09:45:05,710 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 385 transitions. [2023-08-27 09:45:05,714 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 128.33333333333334) internal successors, (385), 3 states have internal predecessors, (385), 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 09:45:05,720 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 274.0) internal successors, (1096), 4 states have internal predecessors, (1096), 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 09:45:05,721 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 274.0) internal successors, (1096), 4 states have internal predecessors, (1096), 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 09:45:05,723 INFO L175 Difference]: Start difference. First operand has 34 places, 38 transitions, 81 flow. Second operand 3 states and 385 transitions. [2023-08-27 09:45:05,723 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 31 transitions, 127 flow [2023-08-27 09:45:05,726 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 31 transitions, 127 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-27 09:45:05,728 INFO L231 Difference]: Finished difference. Result has 30 places, 28 transitions, 65 flow [2023-08-27 09:45:05,729 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=274, PETRI_DIFFERENCE_MINUEND_FLOW=63, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=65, PETRI_PLACES=30, PETRI_TRANSITIONS=28} [2023-08-27 09:45:05,732 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, -4 predicate places. [2023-08-27 09:45:05,732 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 28 transitions, 65 flow [2023-08-27 09:45:05,733 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 117.66666666666667) internal successors, (353), 3 states have internal predecessors, (353), 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 09:45:05,733 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 09:45:05,733 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 09:45:05,734 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-27 09:45:05,734 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thr1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-08-27 09:45:05,736 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 09:45:05,736 INFO L85 PathProgramCache]: Analyzing trace with hash -77427529, now seen corresponding path program 1 times [2023-08-27 09:45:05,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 09:45:05,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1534402574] [2023-08-27 09:45:05,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 09:45:05,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 09:45:05,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 09:45:05,868 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 09:45:05,869 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 09:45:05,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1534402574] [2023-08-27 09:45:05,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1534402574] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 09:45:05,869 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 09:45:05,869 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 09:45:05,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939170252] [2023-08-27 09:45:05,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 09:45:05,870 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 09:45:05,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 09:45:05,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 09:45:05,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 09:45:05,872 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 274 [2023-08-27 09:45:05,872 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 28 transitions, 65 flow. Second operand has 3 states, 3 states have (on average 105.0) internal successors, (315), 3 states have internal predecessors, (315), 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 09:45:05,872 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 09:45:05,872 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 274 [2023-08-27 09:45:05,873 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 09:45:05,947 INFO L124 PetriNetUnfolderBase]: 58/134 cut-off events. [2023-08-27 09:45:05,947 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-27 09:45:05,947 INFO L83 FinitePrefix]: Finished finitePrefix Result has 278 conditions, 134 events. 58/134 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 362 event pairs, 12 based on Foata normal form. 3/107 useless extension candidates. Maximal degree in co-relation 261. Up to 98 conditions per place. [2023-08-27 09:45:05,949 INFO L140 encePairwiseOnDemand]: 268/274 looper letters, 30 selfloop transitions, 2 changer transitions 1/34 dead transitions. [2023-08-27 09:45:05,949 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 34 transitions, 143 flow [2023-08-27 09:45:05,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 09:45:05,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 09:45:05,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 343 transitions. [2023-08-27 09:45:05,951 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4172749391727494 [2023-08-27 09:45:05,952 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 343 transitions. [2023-08-27 09:45:05,952 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 343 transitions. [2023-08-27 09:45:05,952 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 09:45:05,952 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 343 transitions. [2023-08-27 09:45:05,954 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 114.33333333333333) internal successors, (343), 3 states have internal predecessors, (343), 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 09:45:05,957 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 274.0) internal successors, (1096), 4 states have internal predecessors, (1096), 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 09:45:05,957 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 274.0) internal successors, (1096), 4 states have internal predecessors, (1096), 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 09:45:05,957 INFO L175 Difference]: Start difference. First operand has 30 places, 28 transitions, 65 flow. Second operand 3 states and 343 transitions. [2023-08-27 09:45:05,957 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 34 transitions, 143 flow [2023-08-27 09:45:05,958 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 34 transitions, 139 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-27 09:45:05,959 INFO L231 Difference]: Finished difference. Result has 30 places, 29 transitions, 79 flow [2023-08-27 09:45:05,959 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=274, PETRI_DIFFERENCE_MINUEND_FLOW=61, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=79, PETRI_PLACES=30, PETRI_TRANSITIONS=29} [2023-08-27 09:45:05,960 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, -4 predicate places. [2023-08-27 09:45:05,960 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 29 transitions, 79 flow [2023-08-27 09:45:05,961 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 105.0) internal successors, (315), 3 states have internal predecessors, (315), 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 09:45:05,961 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 09:45:05,961 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 09:45:05,961 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-27 09:45:05,962 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err10ASSERT_VIOLATIONASSERT === [thr1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-08-27 09:45:05,963 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 09:45:05,963 INFO L85 PathProgramCache]: Analyzing trace with hash -245149443, now seen corresponding path program 1 times [2023-08-27 09:45:05,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 09:45:05,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1194769472] [2023-08-27 09:45:05,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 09:45:05,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 09:45:06,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 09:45:06,134 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 09:45:06,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 09:45:06,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1194769472] [2023-08-27 09:45:06,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1194769472] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 09:45:06,136 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 09:45:06,137 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-27 09:45:06,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650686761] [2023-08-27 09:45:06,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 09:45:06,137 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-27 09:45:06,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 09:45:06,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-27 09:45:06,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-27 09:45:06,143 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 274 [2023-08-27 09:45:06,144 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 29 transitions, 79 flow. Second operand has 5 states, 5 states have (on average 95.4) internal successors, (477), 5 states have internal predecessors, (477), 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 09:45:06,144 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 09:45:06,144 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 274 [2023-08-27 09:45:06,144 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 09:45:06,294 INFO L124 PetriNetUnfolderBase]: 99/214 cut-off events. [2023-08-27 09:45:06,295 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 09:45:06,295 INFO L83 FinitePrefix]: Finished finitePrefix Result has 469 conditions, 214 events. 99/214 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 527 event pairs, 12 based on Foata normal form. 0/169 useless extension candidates. Maximal degree in co-relation 451. Up to 110 conditions per place. [2023-08-27 09:45:06,296 INFO L140 encePairwiseOnDemand]: 265/274 looper letters, 45 selfloop transitions, 9 changer transitions 1/56 dead transitions. [2023-08-27 09:45:06,296 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 56 transitions, 251 flow [2023-08-27 09:45:06,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-27 09:45:06,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-27 09:45:06,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 521 transitions. [2023-08-27 09:45:06,299 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3802919708029197 [2023-08-27 09:45:06,299 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 521 transitions. [2023-08-27 09:45:06,299 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 521 transitions. [2023-08-27 09:45:06,300 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 09:45:06,300 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 521 transitions. [2023-08-27 09:45:06,301 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 104.2) internal successors, (521), 5 states have internal predecessors, (521), 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 09:45:06,304 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 274.0) internal successors, (1644), 6 states have internal predecessors, (1644), 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 09:45:06,305 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 274.0) internal successors, (1644), 6 states have internal predecessors, (1644), 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 09:45:06,305 INFO L175 Difference]: Start difference. First operand has 30 places, 29 transitions, 79 flow. Second operand 5 states and 521 transitions. [2023-08-27 09:45:06,305 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 56 transitions, 251 flow [2023-08-27 09:45:06,306 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 56 transitions, 249 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 09:45:06,307 INFO L231 Difference]: Finished difference. Result has 35 places, 36 transitions, 143 flow [2023-08-27 09:45:06,307 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=274, PETRI_DIFFERENCE_MINUEND_FLOW=77, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=143, PETRI_PLACES=35, PETRI_TRANSITIONS=36} [2023-08-27 09:45:06,308 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 1 predicate places. [2023-08-27 09:45:06,308 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 36 transitions, 143 flow [2023-08-27 09:45:06,308 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 95.4) internal successors, (477), 5 states have internal predecessors, (477), 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 09:45:06,308 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 09:45:06,309 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 09:45:06,309 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-27 09:45:06,309 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW === [thr1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-08-27 09:45:06,309 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 09:45:06,309 INFO L85 PathProgramCache]: Analyzing trace with hash -245149438, now seen corresponding path program 1 times [2023-08-27 09:45:06,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 09:45:06,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88532218] [2023-08-27 09:45:06,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 09:45:06,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 09:45:06,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 09:45:06,432 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 09:45:06,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 09:45:06,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [88532218] [2023-08-27 09:45:06,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [88532218] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 09:45:06,433 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 09:45:06,433 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-27 09:45:06,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125434806] [2023-08-27 09:45:06,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 09:45:06,433 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-27 09:45:06,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 09:45:06,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-27 09:45:06,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-08-27 09:45:06,435 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 274 [2023-08-27 09:45:06,435 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 36 transitions, 143 flow. Second operand has 6 states, 6 states have (on average 82.0) internal successors, (492), 6 states have internal predecessors, (492), 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 09:45:06,436 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 09:45:06,436 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 274 [2023-08-27 09:45:06,436 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 09:45:06,579 INFO L124 PetriNetUnfolderBase]: 103/224 cut-off events. [2023-08-27 09:45:06,579 INFO L125 PetriNetUnfolderBase]: For 15/15 co-relation queries the response was YES. [2023-08-27 09:45:06,580 INFO L83 FinitePrefix]: Finished finitePrefix Result has 561 conditions, 224 events. 103/224 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 542 event pairs, 6 based on Foata normal form. 0/179 useless extension candidates. Maximal degree in co-relation 540. Up to 81 conditions per place. [2023-08-27 09:45:06,581 INFO L140 encePairwiseOnDemand]: 263/274 looper letters, 47 selfloop transitions, 13 changer transitions 1/62 dead transitions. [2023-08-27 09:45:06,581 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 62 transitions, 319 flow [2023-08-27 09:45:06,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-27 09:45:06,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-27 09:45:06,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 622 transitions. [2023-08-27 09:45:06,583 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.32429614181439 [2023-08-27 09:45:06,583 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 622 transitions. [2023-08-27 09:45:06,583 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 622 transitions. [2023-08-27 09:45:06,584 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 09:45:06,584 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 622 transitions. [2023-08-27 09:45:06,585 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 88.85714285714286) internal successors, (622), 7 states have internal predecessors, (622), 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 09:45:06,588 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 274.0) internal successors, (2192), 8 states have internal predecessors, (2192), 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 09:45:06,589 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 274.0) internal successors, (2192), 8 states have internal predecessors, (2192), 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 09:45:06,589 INFO L175 Difference]: Start difference. First operand has 35 places, 36 transitions, 143 flow. Second operand 7 states and 622 transitions. [2023-08-27 09:45:06,589 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 62 transitions, 319 flow [2023-08-27 09:45:06,590 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 62 transitions, 303 flow, removed 4 selfloop flow, removed 2 redundant places. [2023-08-27 09:45:06,591 INFO L231 Difference]: Finished difference. Result has 42 places, 39 transitions, 181 flow [2023-08-27 09:45:06,592 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=274, PETRI_DIFFERENCE_MINUEND_FLOW=127, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=181, PETRI_PLACES=42, PETRI_TRANSITIONS=39} [2023-08-27 09:45:06,592 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 8 predicate places. [2023-08-27 09:45:06,592 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 39 transitions, 181 flow [2023-08-27 09:45:06,593 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 82.0) internal successors, (492), 6 states have internal predecessors, (492), 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 09:45:06,593 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 09:45:06,593 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 09:45:06,593 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-27 09:45:06,593 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thr1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW === [thr1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-08-27 09:45:06,594 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 09:45:06,594 INFO L85 PathProgramCache]: Analyzing trace with hash -245149440, now seen corresponding path program 1 times [2023-08-27 09:45:06,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 09:45:06,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935556563] [2023-08-27 09:45:06,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 09:45:06,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 09:45:06,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 09:45:06,703 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 09:45:06,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 09:45:06,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1935556563] [2023-08-27 09:45:06,704 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1935556563] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 09:45:06,704 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 09:45:06,704 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-27 09:45:06,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556997874] [2023-08-27 09:45:06,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 09:45:06,704 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-27 09:45:06,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 09:45:06,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-27 09:45:06,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-08-27 09:45:06,706 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 274 [2023-08-27 09:45:06,707 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 39 transitions, 181 flow. Second operand has 6 states, 6 states have (on average 82.0) internal successors, (492), 6 states have internal predecessors, (492), 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 09:45:06,707 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 09:45:06,707 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 274 [2023-08-27 09:45:06,707 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 09:45:06,840 INFO L124 PetriNetUnfolderBase]: 101/219 cut-off events. [2023-08-27 09:45:06,843 INFO L125 PetriNetUnfolderBase]: For 39/39 co-relation queries the response was YES. [2023-08-27 09:45:06,844 INFO L83 FinitePrefix]: Finished finitePrefix Result has 605 conditions, 219 events. 101/219 cut-off events. For 39/39 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 526 event pairs, 12 based on Foata normal form. 3/186 useless extension candidates. Maximal degree in co-relation 581. Up to 120 conditions per place. [2023-08-27 09:45:06,845 INFO L140 encePairwiseOnDemand]: 263/274 looper letters, 46 selfloop transitions, 11 changer transitions 1/59 dead transitions. [2023-08-27 09:45:06,845 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 59 transitions, 341 flow [2023-08-27 09:45:06,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-27 09:45:06,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-27 09:45:06,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 618 transitions. [2023-08-27 09:45:06,848 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3222106360792492 [2023-08-27 09:45:06,848 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 618 transitions. [2023-08-27 09:45:06,848 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 618 transitions. [2023-08-27 09:45:06,849 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 09:45:06,849 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 618 transitions. [2023-08-27 09:45:06,850 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 88.28571428571429) internal successors, (618), 7 states have internal predecessors, (618), 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 09:45:06,853 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 274.0) internal successors, (2192), 8 states have internal predecessors, (2192), 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 09:45:06,854 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 274.0) internal successors, (2192), 8 states have internal predecessors, (2192), 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 09:45:06,854 INFO L175 Difference]: Start difference. First operand has 42 places, 39 transitions, 181 flow. Second operand 7 states and 618 transitions. [2023-08-27 09:45:06,854 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 59 transitions, 341 flow [2023-08-27 09:45:06,859 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 59 transitions, 329 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-27 09:45:06,861 INFO L231 Difference]: Finished difference. Result has 46 places, 39 transitions, 197 flow [2023-08-27 09:45:06,861 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=274, PETRI_DIFFERENCE_MINUEND_FLOW=165, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=197, PETRI_PLACES=46, PETRI_TRANSITIONS=39} [2023-08-27 09:45:06,864 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 12 predicate places. [2023-08-27 09:45:06,864 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 39 transitions, 197 flow [2023-08-27 09:45:06,864 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 82.0) internal successors, (492), 6 states have internal predecessors, (492), 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 09:45:06,864 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 09:45:06,865 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 09:45:06,865 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-27 09:45:06,865 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thr1Err10ASSERT_VIOLATIONASSERT === [thr1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-08-27 09:45:06,865 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 09:45:06,865 INFO L85 PathProgramCache]: Analyzing trace with hash -21378504, now seen corresponding path program 1 times [2023-08-27 09:45:06,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 09:45:06,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314815060] [2023-08-27 09:45:06,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 09:45:06,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 09:45:06,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 09:45:06,920 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-27 09:45:06,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 09:45:07,010 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-27 09:45:07,010 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-27 09:45:07,011 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location thr1Err10ASSERT_VIOLATIONASSERT (21 of 22 remaining) [2023-08-27 09:45:07,012 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 22 remaining) [2023-08-27 09:45:07,012 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 22 remaining) [2023-08-27 09:45:07,012 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 22 remaining) [2023-08-27 09:45:07,016 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 22 remaining) [2023-08-27 09:45:07,016 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 22 remaining) [2023-08-27 09:45:07,016 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONASSERT (15 of 22 remaining) [2023-08-27 09:45:07,017 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 22 remaining) [2023-08-27 09:45:07,017 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 22 remaining) [2023-08-27 09:45:07,017 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 22 remaining) [2023-08-27 09:45:07,017 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 22 remaining) [2023-08-27 09:45:07,017 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 22 remaining) [2023-08-27 09:45:07,017 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 22 remaining) [2023-08-27 09:45:07,017 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 22 remaining) [2023-08-27 09:45:07,017 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 22 remaining) [2023-08-27 09:45:07,018 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 22 remaining) [2023-08-27 09:45:07,018 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 22 remaining) [2023-08-27 09:45:07,018 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 22 remaining) [2023-08-27 09:45:07,018 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 22 remaining) [2023-08-27 09:45:07,018 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 22 remaining) [2023-08-27 09:45:07,018 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 22 remaining) [2023-08-27 09:45:07,018 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 22 remaining) [2023-08-27 09:45:07,019 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-27 09:45:07,019 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2023-08-27 09:45:07,020 INFO L307 ceAbstractionStarter]: Result for error location AllErrorsAtOnce was UNSAFE,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN (1/2) [2023-08-27 09:45:07,024 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-27 09:45:07,024 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-27 09:45:07,084 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.08 09:45:07 BasicIcfg [2023-08-27 09:45:07,084 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-27 09:45:07,085 INFO L158 Benchmark]: Toolchain (without parser) took 8290.44ms. Allocated memory was 362.8MB in the beginning and 459.3MB in the end (delta: 96.5MB). Free memory was 338.4MB in the beginning and 310.3MB in the end (delta: 28.1MB). Peak memory consumption was 124.9MB. Max. memory is 16.0GB. [2023-08-27 09:45:07,087 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 362.8MB. Free memory was 339.7MB in the beginning and 339.6MB in the end (delta: 81.5kB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-27 09:45:07,087 INFO L158 Benchmark]: CACSL2BoogieTranslator took 514.37ms. Allocated memory is still 362.8MB. Free memory was 338.0MB in the beginning and 317.4MB in the end (delta: 20.6MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. [2023-08-27 09:45:07,088 INFO L158 Benchmark]: Boogie Procedure Inliner took 69.91ms. Allocated memory is still 362.8MB. Free memory was 317.4MB in the beginning and 315.0MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-27 09:45:07,088 INFO L158 Benchmark]: Boogie Preprocessor took 61.96ms. Allocated memory is still 362.8MB. Free memory was 315.0MB in the beginning and 312.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-27 09:45:07,088 INFO L158 Benchmark]: RCFGBuilder took 773.50ms. Allocated memory is still 362.8MB. Free memory was 312.9MB in the beginning and 328.5MB in the end (delta: -15.7MB). Peak memory consumption was 35.8MB. Max. memory is 16.0GB. [2023-08-27 09:45:07,088 INFO L158 Benchmark]: TraceAbstraction took 6864.83ms. Allocated memory was 362.8MB in the beginning and 459.3MB in the end (delta: 96.5MB). Free memory was 327.3MB in the beginning and 310.3MB in the end (delta: 17.0MB). Peak memory consumption was 112.2MB. Max. memory is 16.0GB. [2023-08-27 09:45:07,092 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 362.8MB. Free memory was 339.7MB in the beginning and 339.6MB in the end (delta: 81.5kB). There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 514.37ms. Allocated memory is still 362.8MB. Free memory was 338.0MB in the beginning and 317.4MB in the end (delta: 20.6MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 69.91ms. Allocated memory is still 362.8MB. Free memory was 317.4MB in the beginning and 315.0MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 61.96ms. Allocated memory is still 362.8MB. Free memory was 315.0MB in the beginning and 312.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 773.50ms. Allocated memory is still 362.8MB. Free memory was 312.9MB in the beginning and 328.5MB in the end (delta: -15.7MB). Peak memory consumption was 35.8MB. Max. memory is 16.0GB. * TraceAbstraction took 6864.83ms. Allocated memory was 362.8MB in the beginning and 459.3MB in the end (delta: 96.5MB). Free memory was 327.3MB in the beginning and 310.3MB in the end (delta: 17.0MB). Peak memory consumption was 112.2MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 254]: Unsoundness Warning unspecified type, defaulting to int C: short [254] - GenericResultAtLocation [Line: 254]: Unsoundness Warning unspecified type, defaulting to int C: short [254] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.8s, 127 PlacesBefore, 34 PlacesAfterwards, 134 TransitionsBefore, 38 TransitionsAfterwards, 2548 CoEnabledTransitionPairs, 5 FixpointIterations, 21 TrivialSequentialCompositions, 98 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 18 ConcurrentYvCompositions, 3 ChoiceCompositions, 140 TotalNumberOfCompositions, 2857 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2244, independent: 2111, independent conditional: 0, independent unconditional: 2111, dependent: 133, dependent conditional: 0, dependent unconditional: 133, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1370, independent: 1328, independent conditional: 0, independent unconditional: 1328, dependent: 42, dependent conditional: 0, dependent unconditional: 42, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2244, independent: 783, independent conditional: 0, independent unconditional: 783, dependent: 91, dependent conditional: 0, dependent unconditional: 91, unknown: 1370, unknown conditional: 0, unknown unconditional: 1370] , Statistics on independence cache: Total cache size (in pairs): 64, Positive cache size: 45, Positive conditional cache size: 0, Positive unconditional cache size: 45, Negative cache size: 19, Negative conditional cache size: 0, Negative unconditional cache size: 19, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - CounterExampleResult [Line: 17]: assertion can be violated assertion can be violated We found a FailurePath: [L714] 0 int memory[(2*320+1)]; [L715] 0 int next_alloc_idx = 1; [L716] 0 int m = 0; [L717] 0 int top; [L769] 0 int m2 = 0; [L770] 0 int state = 0; [L788] 0 pthread_t t; VAL [m2={5:0}, m={3:0}, next_alloc_idx=1, state=0, t={6:0}, top={4:0}] [L789] COND TRUE 0 1 [L789] FCALL, FORK 0 pthread_create(&t, 0, thr1, 0) VAL [m2={5:0}, m={3:0}, next_alloc_idx=1, pthread_create(&t, 0, thr1, 0)=0, state=0, t={6:0}, top={4:0}] [L773] CALL 1 __VERIFIER_atomic_acquire(&m2) [L691] EXPR 1 \read(*m) [L691] CALL 1 assume_abort_if_not(*m==0) [L4] COND FALSE 1 !(!cond) [L691] RET 1 assume_abort_if_not(*m==0) [L692] 1 *m = 1 [L773] RET 1 __VERIFIER_atomic_acquire(&m2) [L776] 1 case 0: [L777] CALL 1 EBStack_init() [L732] 1 top = 0 [L777] RET 1 EBStack_init() [L778] 1 state = 1 [L779] 1 case 1: [L780] CALL 1 __VERIFIER_atomic_release(&m2) [L696] EXPR 1 \read(*m) [L696] CALL 1 assume_abort_if_not(*m==1) [L4] COND FALSE 1 !(!cond) [L696] RET 1 assume_abort_if_not(*m==1) [L697] 1 *m = 0 [L780] RET 1 __VERIFIER_atomic_release(&m2) [L781] CALL 1 push_loop() [L762] 1 int r = -1; [L763] 1 int arg = __VERIFIER_nondet_int(); [L764] COND TRUE 1 1 [L765] CALL, EXPR 1 push(arg) [L741] 1 int oldTop = -1, newTop = -1, casret = -1; [L742] CALL, EXPR 1 index_malloc() [L719] 1 int curr_alloc_idx = -1; [L720] CALL 1 __VERIFIER_atomic_acquire(&m) [L691] EXPR 1 \read(*m) [L691] CALL 1 assume_abort_if_not(*m==0) [L4] COND FALSE 1 !(!cond) [L691] RET 1 assume_abort_if_not(*m==0) [L692] 1 *m = 1 [L720] RET 1 __VERIFIER_atomic_acquire(&m) [L721] EXPR 1 next_alloc_idx+2 [L721] EXPR 1 next_alloc_idx+2-1 [L721] COND FALSE 1 !(next_alloc_idx+2-1 > (2*320+1)) [L725] 1 curr_alloc_idx = next_alloc_idx [L726] 1 next_alloc_idx += 2 VAL [curr_alloc_idx=1, m2={5:0}, m={3:0}, next_alloc_idx=3, state=1, top={4:0}] [L727] CALL 1 __VERIFIER_atomic_release(&m) [L696] EXPR 1 \read(*m) [L696] CALL 1 assume_abort_if_not(*m==1) [L4] COND FALSE 1 !(!cond) [L696] RET 1 assume_abort_if_not(*m==1) [L697] 1 *m = 0 [L727] RET 1 __VERIFIER_atomic_release(&m) [L729] 1 return curr_alloc_idx; [L742] RET, EXPR 1 index_malloc() [L742] 1 newTop = index_malloc() [L743] COND FALSE 1 !(newTop == 0) [L746] EXPR 1 newTop+0 [L746] 1 memory[newTop+0] = d VAL [\old(d)=7, casret={8:0}, d=7, m2={5:0}, m={3:0}, newTop=1, next_alloc_idx=3, oldTop=-1, state=1, top={4:0}] [L747] COND TRUE 1 1 [L748] EXPR 1 \read(top) [L748] 1 oldTop = top [L749] EXPR 1 newTop+1 VAL [\old(d)=7, casret={8:0}, d=7, m2={5:0}, m={3:0}, newTop=1, next_alloc_idx=3, oldTop=0, state=1, top={4:0}] [L749] 1 memory[newTop+1] = oldTop [L750] CALL 1 __VERIFIER_atomic_CAS(&top,oldTop,newTop,&casret) [L705] EXPR 1 \read(*v) [L705] COND TRUE 1 *v == e [L707] 1 *v = u [L707] 1 *r = 1 [L750] RET 1 __VERIFIER_atomic_CAS(&top,oldTop,newTop,&casret) [L751] EXPR 1 \read(casret) [L751] COND TRUE 1 casret==1 VAL [\old(d)=7, \read(casret)=1, casret={8:0}, d=7, m2={5:0}, m={3:0}, newTop=1, next_alloc_idx=3, oldTop=0, state=1, top={4:0}] [L752] 1 return 1; [L741] 1 int oldTop = -1, newTop = -1, casret = -1; [L752] 1 return 1; [L765] RET, EXPR 1 push(arg) [L765] 1 r = push(arg) VAL [arg=7, m2={5:0}, m={3:0}, next_alloc_idx=3, push(arg)=1, r=1, state=1, top={4:0}] [L766] CALL 1 __VERIFIER_atomic_assert(r) [L759] EXPR 1 !r || !isEmpty() [L759] CALL, EXPR 1 isEmpty() [L735] EXPR 1 \read(top) [L735] COND FALSE 1 !(top == 0) [L738] 1 return 0; [L759] RET, EXPR 1 isEmpty() [L759] EXPR 1 !r || !isEmpty() [L759] COND TRUE 1 !(!(!r || !isEmpty())) [L759] CALL 1 reach_error() [L17] COND FALSE 1 !(0) [L17] 1 __assert_fail ("0", "26_stack_cas_longer-1.c", 8, __extension__ __PRETTY_FUNCTION__) VAL [m2={5:0}, m={3:0}, next_alloc_idx=3, state=1, top={4:0}] - UnprovableResult [Line: 721]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 749]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 721]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 726]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 749]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 726]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 721]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 746]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 721]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 746]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 215 locations, 23 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: 6.7s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 5.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 103 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 103 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 530 IncrementalHoareTripleChecker+Invalid, 540 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 0 mSDtfsCounter, 530 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=197occurred in iteration=5, InterpolantAutomatonStates: 25, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 69 NumberOfCodeBlocks, 69 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 48 ConstructedInterpolants, 0 QuantifiedInterpolants, 134 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2023-08-27 09:45:07,112 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...