/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true -i ../../../trunk/examples/svcomp/pthread-wmm/safe031_tso.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-26 21:30:04,404 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-26 21:30:04,452 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf [2023-08-26 21:30:04,455 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-26 21:30:04,456 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-26 21:30:04,477 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-26 21:30:04,478 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-26 21:30:04,478 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-26 21:30:04,479 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-26 21:30:04,482 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-26 21:30:04,482 INFO L153 SettingsManager]: * Use SBE=true [2023-08-26 21:30:04,482 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-26 21:30:04,482 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-26 21:30:04,483 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-26 21:30:04,484 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-26 21:30:04,484 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-26 21:30:04,484 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-26 21:30:04,484 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-26 21:30:04,484 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-26 21:30:04,484 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-26 21:30:04,484 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-26 21:30:04,485 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-26 21:30:04,485 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-26 21:30:04,485 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-26 21:30:04,485 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-26 21:30:04,486 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-26 21:30:04,486 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-26 21:30:04,486 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 21:30:04,486 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-26 21:30:04,486 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-26 21:30:04,487 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-26 21:30:04,487 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-26 21:30:04,487 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-26 21:30:04,487 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-26 21:30:04,487 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-26 21:30:04,488 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2023-08-26 21:30:04,749 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-26 21:30:04,765 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-26 21:30:04,766 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-26 21:30:04,767 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-26 21:30:04,770 INFO L274 PluginConnector]: CDTParser initialized [2023-08-26 21:30:04,771 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe031_tso.i [2023-08-26 21:30:05,780 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-26 21:30:06,019 INFO L384 CDTParser]: Found 1 translation units. [2023-08-26 21:30:06,029 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe031_tso.i [2023-08-26 21:30:06,056 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a4228ed9/fe6d6030a2a545cc922e0a8613183494/FLAG493ec8d1f [2023-08-26 21:30:06,067 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a4228ed9/fe6d6030a2a545cc922e0a8613183494 [2023-08-26 21:30:06,069 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-26 21:30:06,070 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-26 21:30:06,071 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-26 21:30:06,071 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-26 21:30:06,073 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-26 21:30:06,074 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 09:30:06" (1/1) ... [2023-08-26 21:30:06,074 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34f272ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:30:06, skipping insertion in model container [2023-08-26 21:30:06,075 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 09:30:06" (1/1) ... [2023-08-26 21:30:06,120 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-26 21:30:06,361 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 21:30:06,371 INFO L201 MainTranslator]: Completed pre-run [2023-08-26 21:30:06,397 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [267] [2023-08-26 21:30:06,398 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [267] [2023-08-26 21:30:06,425 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 21:30:06,451 WARN L669 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-26 21:30:06,451 WARN L669 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-26 21:30:06,456 INFO L206 MainTranslator]: Completed translation [2023-08-26 21:30:06,457 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:30:06 WrapperNode [2023-08-26 21:30:06,458 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-26 21:30:06,458 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-26 21:30:06,459 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-26 21:30:06,459 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-26 21:30:06,463 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:30:06" (1/1) ... [2023-08-26 21:30:06,490 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:30:06" (1/1) ... [2023-08-26 21:30:06,510 INFO L138 Inliner]: procedures = 176, calls = 56, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 73 [2023-08-26 21:30:06,511 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-26 21:30:06,511 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-26 21:30:06,511 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-26 21:30:06,511 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-26 21:30:06,517 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:30:06" (1/1) ... [2023-08-26 21:30:06,517 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:30:06" (1/1) ... [2023-08-26 21:30:06,531 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:30:06" (1/1) ... [2023-08-26 21:30:06,531 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:30:06" (1/1) ... [2023-08-26 21:30:06,540 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:30:06" (1/1) ... [2023-08-26 21:30:06,541 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:30:06" (1/1) ... [2023-08-26 21:30:06,542 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:30:06" (1/1) ... [2023-08-26 21:30:06,545 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:30:06" (1/1) ... [2023-08-26 21:30:06,547 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-26 21:30:06,547 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-26 21:30:06,548 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-26 21:30:06,548 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-26 21:30:06,548 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:30:06" (1/1) ... [2023-08-26 21:30:06,554 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 21:30:06,564 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 21:30:06,594 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-26 21:30:06,612 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-26 21:30:06,621 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-26 21:30:06,622 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-26 21:30:06,622 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-26 21:30:06,622 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-26 21:30:06,622 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-26 21:30:06,622 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-08-26 21:30:06,622 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-08-26 21:30:06,622 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-08-26 21:30:06,622 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-08-26 21:30:06,622 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-08-26 21:30:06,622 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-08-26 21:30:06,623 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-26 21:30:06,623 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-26 21:30:06,623 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-26 21:30:06,623 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-26 21:30:06,624 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-26 21:30:06,743 INFO L236 CfgBuilder]: Building ICFG [2023-08-26 21:30:06,746 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-26 21:30:06,908 INFO L277 CfgBuilder]: Performing block encoding [2023-08-26 21:30:06,935 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-26 21:30:06,935 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-26 21:30:06,936 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 09:30:06 BoogieIcfgContainer [2023-08-26 21:30:06,936 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-26 21:30:06,938 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-26 21:30:06,938 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-26 21:30:06,940 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-26 21:30:06,940 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.08 09:30:06" (1/3) ... [2023-08-26 21:30:06,940 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40567801 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 09:30:06, skipping insertion in model container [2023-08-26 21:30:06,942 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:30:06" (2/3) ... [2023-08-26 21:30:06,942 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40567801 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 09:30:06, skipping insertion in model container [2023-08-26 21:30:06,942 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 09:30:06" (3/3) ... [2023-08-26 21:30:06,943 INFO L112 eAbstractionObserver]: Analyzing ICFG safe031_tso.i [2023-08-26 21:30:06,954 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-26 21:30:06,954 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2023-08-26 21:30:06,954 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-26 21:30:07,020 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-26 21:30:07,042 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 101 places, 94 transitions, 203 flow [2023-08-26 21:30:07,086 INFO L124 PetriNetUnfolderBase]: 3/91 cut-off events. [2023-08-26 21:30:07,087 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 21:30:07,090 INFO L83 FinitePrefix]: Finished finitePrefix Result has 101 conditions, 91 events. 3/91 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 73 event pairs, 0 based on Foata normal form. 0/81 useless extension candidates. Maximal degree in co-relation 74. Up to 2 conditions per place. [2023-08-26 21:30:07,091 INFO L82 GeneralOperation]: Start removeDead. Operand has 101 places, 94 transitions, 203 flow [2023-08-26 21:30:07,094 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 98 places, 91 transitions, 191 flow [2023-08-26 21:30:07,096 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-26 21:30:07,123 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 98 places, 91 transitions, 191 flow [2023-08-26 21:30:07,125 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 98 places, 91 transitions, 191 flow [2023-08-26 21:30:07,126 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 98 places, 91 transitions, 191 flow [2023-08-26 21:30:07,144 INFO L124 PetriNetUnfolderBase]: 3/91 cut-off events. [2023-08-26 21:30:07,144 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 21:30:07,144 INFO L83 FinitePrefix]: Finished finitePrefix Result has 101 conditions, 91 events. 3/91 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 73 event pairs, 0 based on Foata normal form. 0/81 useless extension candidates. Maximal degree in co-relation 74. Up to 2 conditions per place. [2023-08-26 21:30:07,146 INFO L119 LiptonReduction]: Number of co-enabled transitions 2256 [2023-08-26 21:30:08,994 INFO L134 LiptonReduction]: Checked pairs total: 6509 [2023-08-26 21:30:08,994 INFO L136 LiptonReduction]: Total number of compositions: 88 [2023-08-26 21:30:09,004 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-26 21:30:09,007 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;@4ec7239f, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-26 21:30:09,008 INFO L358 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2023-08-26 21:30:09,010 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-26 21:30:09,010 INFO L124 PetriNetUnfolderBase]: 0/6 cut-off events. [2023-08-26 21:30:09,011 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 21:30:09,011 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 21:30:09,011 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-26 21:30:09,011 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2023-08-26 21:30:09,015 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 21:30:09,015 INFO L85 PathProgramCache]: Analyzing trace with hash 338044397, now seen corresponding path program 1 times [2023-08-26 21:30:09,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 21:30:09,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744344768] [2023-08-26 21:30:09,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 21:30:09,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 21:30:09,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 21:30:09,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 21:30:09,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 21:30:09,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744344768] [2023-08-26 21:30:09,208 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [744344768] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 21:30:09,208 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 21:30:09,208 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-26 21:30:09,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601587653] [2023-08-26 21:30:09,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 21:30:09,215 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 21:30:09,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 21:30:09,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 21:30:09,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 21:30:09,237 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 182 [2023-08-26 21:30:09,238 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 25 transitions, 59 flow. Second operand has 3 states, 3 states have (on average 77.33333333333333) internal successors, (232), 3 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:30:09,239 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 21:30:09,239 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 182 [2023-08-26 21:30:09,239 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 21:30:09,398 INFO L124 PetriNetUnfolderBase]: 496/815 cut-off events. [2023-08-26 21:30:09,398 INFO L125 PetriNetUnfolderBase]: For 13/13 co-relation queries the response was YES. [2023-08-26 21:30:09,401 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1659 conditions, 815 events. 496/815 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 3705 event pairs, 127 based on Foata normal form. 0/515 useless extension candidates. Maximal degree in co-relation 1648. Up to 710 conditions per place. [2023-08-26 21:30:09,404 INFO L140 encePairwiseOnDemand]: 171/182 looper letters, 30 selfloop transitions, 4 changer transitions 0/37 dead transitions. [2023-08-26 21:30:09,405 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 37 transitions, 157 flow [2023-08-26 21:30:09,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 21:30:09,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 21:30:09,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 270 transitions. [2023-08-26 21:30:09,413 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4945054945054945 [2023-08-26 21:30:09,413 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 270 transitions. [2023-08-26 21:30:09,414 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 270 transitions. [2023-08-26 21:30:09,414 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 21:30:09,416 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 270 transitions. [2023-08-26 21:30:09,417 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 90.0) internal successors, (270), 3 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:30:09,420 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 182.0) internal successors, (728), 4 states have internal predecessors, (728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:30:09,420 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 182.0) internal successors, (728), 4 states have internal predecessors, (728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:30:09,421 INFO L175 Difference]: Start difference. First operand has 34 places, 25 transitions, 59 flow. Second operand 3 states and 270 transitions. [2023-08-26 21:30:09,422 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 37 transitions, 157 flow [2023-08-26 21:30:09,423 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 37 transitions, 152 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-26 21:30:09,424 INFO L231 Difference]: Finished difference. Result has 34 places, 27 transitions, 90 flow [2023-08-26 21:30:09,425 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=54, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=90, PETRI_PLACES=34, PETRI_TRANSITIONS=27} [2023-08-26 21:30:09,427 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 0 predicate places. [2023-08-26 21:30:09,427 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 27 transitions, 90 flow [2023-08-26 21:30:09,427 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 77.33333333333333) internal successors, (232), 3 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:30:09,428 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 21:30:09,428 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 21:30:09,428 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-26 21:30:09,428 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2023-08-26 21:30:09,428 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 21:30:09,428 INFO L85 PathProgramCache]: Analyzing trace with hash -245107891, now seen corresponding path program 1 times [2023-08-26 21:30:09,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 21:30:09,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620837337] [2023-08-26 21:30:09,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 21:30:09,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 21:30:09,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 21:30:09,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 21:30:09,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 21:30:09,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620837337] [2023-08-26 21:30:09,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [620837337] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 21:30:09,639 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 21:30:09,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-26 21:30:09,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537921450] [2023-08-26 21:30:09,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 21:30:09,640 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 21:30:09,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 21:30:09,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 21:30:09,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 21:30:09,642 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 182 [2023-08-26 21:30:09,643 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 27 transitions, 90 flow. Second operand has 3 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) [2023-08-26 21:30:09,643 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 21:30:09,643 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 182 [2023-08-26 21:30:09,643 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 21:30:09,802 INFO L124 PetriNetUnfolderBase]: 1226/2074 cut-off events. [2023-08-26 21:30:09,803 INFO L125 PetriNetUnfolderBase]: For 246/266 co-relation queries the response was YES. [2023-08-26 21:30:09,808 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5149 conditions, 2074 events. 1226/2074 cut-off events. For 246/266 co-relation queries the response was YES. Maximal size of possible extension queue 167. Compared 11817 event pairs, 474 based on Foata normal form. 0/1710 useless extension candidates. Maximal degree in co-relation 5138. Up to 953 conditions per place. [2023-08-26 21:30:09,817 INFO L140 encePairwiseOnDemand]: 174/182 looper letters, 38 selfloop transitions, 7 changer transitions 0/48 dead transitions. [2023-08-26 21:30:09,817 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 48 transitions, 247 flow [2023-08-26 21:30:09,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 21:30:09,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 21:30:09,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 256 transitions. [2023-08-26 21:30:09,823 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46886446886446886 [2023-08-26 21:30:09,823 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 256 transitions. [2023-08-26 21:30:09,823 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 256 transitions. [2023-08-26 21:30:09,824 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 21:30:09,824 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 256 transitions. [2023-08-26 21:30:09,825 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 85.33333333333333) internal successors, (256), 3 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:30:09,827 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 182.0) internal successors, (728), 4 states have internal predecessors, (728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:30:09,827 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 182.0) internal successors, (728), 4 states have internal predecessors, (728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:30:09,828 INFO L175 Difference]: Start difference. First operand has 34 places, 27 transitions, 90 flow. Second operand 3 states and 256 transitions. [2023-08-26 21:30:09,828 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 48 transitions, 247 flow [2023-08-26 21:30:09,829 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 48 transitions, 240 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-26 21:30:09,830 INFO L231 Difference]: Finished difference. Result has 37 places, 33 transitions, 140 flow [2023-08-26 21:30:09,830 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=86, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=140, PETRI_PLACES=37, PETRI_TRANSITIONS=33} [2023-08-26 21:30:09,831 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 3 predicate places. [2023-08-26 21:30:09,832 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 33 transitions, 140 flow [2023-08-26 21:30:09,832 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 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) [2023-08-26 21:30:09,834 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 21:30:09,835 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 21:30:09,835 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-26 21:30:09,839 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2023-08-26 21:30:09,841 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 21:30:09,841 INFO L85 PathProgramCache]: Analyzing trace with hash 991588899, now seen corresponding path program 1 times [2023-08-26 21:30:09,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 21:30:09,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045585249] [2023-08-26 21:30:09,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 21:30:09,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 21:30:09,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 21:30:09,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 21:30:09,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 21:30:09,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1045585249] [2023-08-26 21:30:09,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1045585249] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 21:30:09,948 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 21:30:09,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 21:30:09,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070664884] [2023-08-26 21:30:09,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 21:30:09,948 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-26 21:30:09,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 21:30:09,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-26 21:30:09,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-26 21:30:09,949 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 182 [2023-08-26 21:30:09,950 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 33 transitions, 140 flow. Second operand has 4 states, 4 states have (on average 74.25) internal successors, (297), 4 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:30:09,950 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 21:30:09,950 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 182 [2023-08-26 21:30:09,950 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 21:30:10,105 INFO L124 PetriNetUnfolderBase]: 1197/2037 cut-off events. [2023-08-26 21:30:10,105 INFO L125 PetriNetUnfolderBase]: For 866/888 co-relation queries the response was YES. [2023-08-26 21:30:10,108 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6031 conditions, 2037 events. 1197/2037 cut-off events. For 866/888 co-relation queries the response was YES. Maximal size of possible extension queue 160. Compared 11557 event pairs, 243 based on Foata normal form. 12/1765 useless extension candidates. Maximal degree in co-relation 6017. Up to 932 conditions per place. [2023-08-26 21:30:10,115 INFO L140 encePairwiseOnDemand]: 174/182 looper letters, 46 selfloop transitions, 11 changer transitions 0/60 dead transitions. [2023-08-26 21:30:10,115 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 60 transitions, 360 flow [2023-08-26 21:30:10,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-26 21:30:10,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-26 21:30:10,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 336 transitions. [2023-08-26 21:30:10,116 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46153846153846156 [2023-08-26 21:30:10,116 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 336 transitions. [2023-08-26 21:30:10,116 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 336 transitions. [2023-08-26 21:30:10,116 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 21:30:10,116 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 336 transitions. [2023-08-26 21:30:10,117 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 84.0) internal successors, (336), 4 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:30:10,118 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 182.0) internal successors, (910), 5 states have internal predecessors, (910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:30:10,118 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 182.0) internal successors, (910), 5 states have internal predecessors, (910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:30:10,118 INFO L175 Difference]: Start difference. First operand has 37 places, 33 transitions, 140 flow. Second operand 4 states and 336 transitions. [2023-08-26 21:30:10,119 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 60 transitions, 360 flow [2023-08-26 21:30:10,121 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 60 transitions, 336 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-26 21:30:10,122 INFO L231 Difference]: Finished difference. Result has 41 places, 40 transitions, 210 flow [2023-08-26 21:30:10,122 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=126, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=210, PETRI_PLACES=41, PETRI_TRANSITIONS=40} [2023-08-26 21:30:10,123 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 7 predicate places. [2023-08-26 21:30:10,123 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 40 transitions, 210 flow [2023-08-26 21:30:10,123 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 74.25) internal successors, (297), 4 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:30:10,123 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 21:30:10,123 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 21:30:10,123 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-26 21:30:10,123 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2023-08-26 21:30:10,123 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 21:30:10,124 INFO L85 PathProgramCache]: Analyzing trace with hash 991587938, now seen corresponding path program 1 times [2023-08-26 21:30:10,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 21:30:10,124 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845821195] [2023-08-26 21:30:10,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 21:30:10,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 21:30:10,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 21:30:10,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 21:30:10,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 21:30:10,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [845821195] [2023-08-26 21:30:10,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [845821195] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 21:30:10,193 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 21:30:10,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 21:30:10,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658670804] [2023-08-26 21:30:10,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 21:30:10,193 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-26 21:30:10,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 21:30:10,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-26 21:30:10,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-26 21:30:10,194 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 182 [2023-08-26 21:30:10,195 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 40 transitions, 210 flow. Second operand has 4 states, 4 states have (on average 74.25) internal successors, (297), 4 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:30:10,195 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 21:30:10,195 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 182 [2023-08-26 21:30:10,195 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 21:30:10,363 INFO L124 PetriNetUnfolderBase]: 1169/1991 cut-off events. [2023-08-26 21:30:10,363 INFO L125 PetriNetUnfolderBase]: For 1595/1633 co-relation queries the response was YES. [2023-08-26 21:30:10,365 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6428 conditions, 1991 events. 1169/1991 cut-off events. For 1595/1633 co-relation queries the response was YES. Maximal size of possible extension queue 152. Compared 11234 event pairs, 240 based on Foata normal form. 10/1719 useless extension candidates. Maximal degree in co-relation 6411. Up to 918 conditions per place. [2023-08-26 21:30:10,372 INFO L140 encePairwiseOnDemand]: 174/182 looper letters, 51 selfloop transitions, 16 changer transitions 0/70 dead transitions. [2023-08-26 21:30:10,372 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 70 transitions, 480 flow [2023-08-26 21:30:10,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-26 21:30:10,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-26 21:30:10,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 337 transitions. [2023-08-26 21:30:10,373 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46291208791208793 [2023-08-26 21:30:10,373 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 337 transitions. [2023-08-26 21:30:10,373 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 337 transitions. [2023-08-26 21:30:10,373 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 21:30:10,373 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 337 transitions. [2023-08-26 21:30:10,374 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 84.25) internal successors, (337), 4 states have internal predecessors, (337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:30:10,375 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 182.0) internal successors, (910), 5 states have internal predecessors, (910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:30:10,375 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 182.0) internal successors, (910), 5 states have internal predecessors, (910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:30:10,375 INFO L175 Difference]: Start difference. First operand has 41 places, 40 transitions, 210 flow. Second operand 4 states and 337 transitions. [2023-08-26 21:30:10,375 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 70 transitions, 480 flow [2023-08-26 21:30:10,378 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 70 transitions, 480 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-26 21:30:10,379 INFO L231 Difference]: Finished difference. Result has 47 places, 47 transitions, 338 flow [2023-08-26 21:30:10,379 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=210, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=338, PETRI_PLACES=47, PETRI_TRANSITIONS=47} [2023-08-26 21:30:10,379 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 13 predicate places. [2023-08-26 21:30:10,379 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 47 transitions, 338 flow [2023-08-26 21:30:10,380 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 74.25) internal successors, (297), 4 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:30:10,380 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 21:30:10,380 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 21:30:10,380 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-26 21:30:10,380 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2023-08-26 21:30:10,380 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 21:30:10,380 INFO L85 PathProgramCache]: Analyzing trace with hash -465064191, now seen corresponding path program 1 times [2023-08-26 21:30:10,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 21:30:10,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296650798] [2023-08-26 21:30:10,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 21:30:10,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 21:30:10,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 21:30:10,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 21:30:10,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 21:30:10,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1296650798] [2023-08-26 21:30:10,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1296650798] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 21:30:10,405 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 21:30:10,405 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 21:30:10,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229282978] [2023-08-26 21:30:10,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 21:30:10,406 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-26 21:30:10,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 21:30:10,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-26 21:30:10,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-26 21:30:10,407 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 182 [2023-08-26 21:30:10,407 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 47 transitions, 338 flow. Second operand has 4 states, 4 states have (on average 78.0) internal successors, (312), 4 states have internal predecessors, (312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:30:10,407 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 21:30:10,407 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 182 [2023-08-26 21:30:10,407 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 21:30:10,516 INFO L124 PetriNetUnfolderBase]: 779/1340 cut-off events. [2023-08-26 21:30:10,517 INFO L125 PetriNetUnfolderBase]: For 3298/3444 co-relation queries the response was YES. [2023-08-26 21:30:10,519 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4975 conditions, 1340 events. 779/1340 cut-off events. For 3298/3444 co-relation queries the response was YES. Maximal size of possible extension queue 130. Compared 7511 event pairs, 134 based on Foata normal form. 98/1198 useless extension candidates. Maximal degree in co-relation 4953. Up to 994 conditions per place. [2023-08-26 21:30:10,524 INFO L140 encePairwiseOnDemand]: 175/182 looper letters, 47 selfloop transitions, 4 changer transitions 0/63 dead transitions. [2023-08-26 21:30:10,524 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 63 transitions, 568 flow [2023-08-26 21:30:10,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-26 21:30:10,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-26 21:30:10,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 338 transitions. [2023-08-26 21:30:10,525 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4642857142857143 [2023-08-26 21:30:10,525 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 338 transitions. [2023-08-26 21:30:10,525 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 338 transitions. [2023-08-26 21:30:10,525 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 21:30:10,525 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 338 transitions. [2023-08-26 21:30:10,526 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 84.5) internal successors, (338), 4 states have internal predecessors, (338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:30:10,527 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 182.0) internal successors, (910), 5 states have internal predecessors, (910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:30:10,527 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 182.0) internal successors, (910), 5 states have internal predecessors, (910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:30:10,527 INFO L175 Difference]: Start difference. First operand has 47 places, 47 transitions, 338 flow. Second operand 4 states and 338 transitions. [2023-08-26 21:30:10,527 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 63 transitions, 568 flow [2023-08-26 21:30:10,531 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 63 transitions, 568 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-26 21:30:10,531 INFO L231 Difference]: Finished difference. Result has 47 places, 44 transitions, 334 flow [2023-08-26 21:30:10,531 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=326, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=334, PETRI_PLACES=47, PETRI_TRANSITIONS=44} [2023-08-26 21:30:10,532 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 13 predicate places. [2023-08-26 21:30:10,532 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 44 transitions, 334 flow [2023-08-26 21:30:10,532 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 78.0) internal successors, (312), 4 states have internal predecessors, (312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:30:10,532 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 21:30:10,532 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 21:30:10,533 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-26 21:30:10,533 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2023-08-26 21:30:10,533 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 21:30:10,533 INFO L85 PathProgramCache]: Analyzing trace with hash -386179572, now seen corresponding path program 1 times [2023-08-26 21:30:10,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 21:30:10,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758974951] [2023-08-26 21:30:10,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 21:30:10,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 21:30:10,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 21:30:10,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 21:30:10,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 21:30:10,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1758974951] [2023-08-26 21:30:10,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1758974951] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 21:30:10,556 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 21:30:10,556 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 21:30:10,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851926040] [2023-08-26 21:30:10,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 21:30:10,556 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-26 21:30:10,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 21:30:10,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-26 21:30:10,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-26 21:30:10,557 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 182 [2023-08-26 21:30:10,557 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 44 transitions, 334 flow. Second operand has 4 states, 4 states have (on average 78.0) internal successors, (312), 4 states have internal predecessors, (312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:30:10,557 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 21:30:10,558 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 182 [2023-08-26 21:30:10,558 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 21:30:10,649 INFO L124 PetriNetUnfolderBase]: 554/963 cut-off events. [2023-08-26 21:30:10,649 INFO L125 PetriNetUnfolderBase]: For 2933/3071 co-relation queries the response was YES. [2023-08-26 21:30:10,651 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3871 conditions, 963 events. 554/963 cut-off events. For 2933/3071 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 5081 event pairs, 76 based on Foata normal form. 90/1001 useless extension candidates. Maximal degree in co-relation 3847. Up to 347 conditions per place. [2023-08-26 21:30:10,655 INFO L140 encePairwiseOnDemand]: 175/182 looper letters, 57 selfloop transitions, 7 changer transitions 0/76 dead transitions. [2023-08-26 21:30:10,655 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 76 transitions, 678 flow [2023-08-26 21:30:10,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-26 21:30:10,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-26 21:30:10,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 349 transitions. [2023-08-26 21:30:10,656 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4793956043956044 [2023-08-26 21:30:10,656 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 349 transitions. [2023-08-26 21:30:10,656 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 349 transitions. [2023-08-26 21:30:10,656 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 21:30:10,656 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 349 transitions. [2023-08-26 21:30:10,657 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 87.25) internal successors, (349), 4 states have internal predecessors, (349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:30:10,658 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 182.0) internal successors, (910), 5 states have internal predecessors, (910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:30:10,658 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 182.0) internal successors, (910), 5 states have internal predecessors, (910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:30:10,658 INFO L175 Difference]: Start difference. First operand has 47 places, 44 transitions, 334 flow. Second operand 4 states and 349 transitions. [2023-08-26 21:30:10,658 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 76 transitions, 678 flow [2023-08-26 21:30:10,662 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 76 transitions, 673 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-26 21:30:10,662 INFO L231 Difference]: Finished difference. Result has 49 places, 47 transitions, 373 flow [2023-08-26 21:30:10,663 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=329, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=373, PETRI_PLACES=49, PETRI_TRANSITIONS=47} [2023-08-26 21:30:10,663 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 15 predicate places. [2023-08-26 21:30:10,663 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 47 transitions, 373 flow [2023-08-26 21:30:10,663 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 78.0) internal successors, (312), 4 states have internal predecessors, (312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:30:10,663 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 21:30:10,664 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 21:30:10,664 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-26 21:30:10,664 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2023-08-26 21:30:10,664 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 21:30:10,664 INFO L85 PathProgramCache]: Analyzing trace with hash 455911532, now seen corresponding path program 1 times [2023-08-26 21:30:10,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 21:30:10,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832220372] [2023-08-26 21:30:10,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 21:30:10,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 21:30:10,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 21:30:10,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 21:30:10,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 21:30:10,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1832220372] [2023-08-26 21:30:10,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1832220372] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 21:30:10,730 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 21:30:10,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 21:30:10,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78879351] [2023-08-26 21:30:10,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 21:30:10,731 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-26 21:30:10,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 21:30:10,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-26 21:30:10,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-26 21:30:10,732 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 182 [2023-08-26 21:30:10,732 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 47 transitions, 373 flow. Second operand has 4 states, 4 states have (on average 76.5) internal successors, (306), 4 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:30:10,732 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 21:30:10,732 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 182 [2023-08-26 21:30:10,732 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 21:30:10,857 INFO L124 PetriNetUnfolderBase]: 441/829 cut-off events. [2023-08-26 21:30:10,857 INFO L125 PetriNetUnfolderBase]: For 4042/4286 co-relation queries the response was YES. [2023-08-26 21:30:10,859 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3693 conditions, 829 events. 441/829 cut-off events. For 4042/4286 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 4542 event pairs, 67 based on Foata normal form. 327/1102 useless extension candidates. Maximal degree in co-relation 3668. Up to 496 conditions per place. [2023-08-26 21:30:10,862 INFO L140 encePairwiseOnDemand]: 175/182 looper letters, 67 selfloop transitions, 8 changer transitions 3/89 dead transitions. [2023-08-26 21:30:10,862 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 89 transitions, 844 flow [2023-08-26 21:30:10,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-26 21:30:10,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-26 21:30:10,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 418 transitions. [2023-08-26 21:30:10,863 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4593406593406593 [2023-08-26 21:30:10,863 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 418 transitions. [2023-08-26 21:30:10,863 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 418 transitions. [2023-08-26 21:30:10,864 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 21:30:10,864 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 418 transitions. [2023-08-26 21:30:10,864 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 83.6) internal successors, (418), 5 states have internal predecessors, (418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:30:10,865 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 182.0) internal successors, (1092), 6 states have internal predecessors, (1092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:30:10,866 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 182.0) internal successors, (1092), 6 states have internal predecessors, (1092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:30:10,866 INFO L175 Difference]: Start difference. First operand has 49 places, 47 transitions, 373 flow. Second operand 5 states and 418 transitions. [2023-08-26 21:30:10,866 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 89 transitions, 844 flow [2023-08-26 21:30:10,869 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 89 transitions, 818 flow, removed 6 selfloop flow, removed 2 redundant places. [2023-08-26 21:30:10,870 INFO L231 Difference]: Finished difference. Result has 54 places, 50 transitions, 422 flow [2023-08-26 21:30:10,870 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=349, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=422, PETRI_PLACES=54, PETRI_TRANSITIONS=50} [2023-08-26 21:30:10,871 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 20 predicate places. [2023-08-26 21:30:10,871 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 50 transitions, 422 flow [2023-08-26 21:30:10,871 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 76.5) internal successors, (306), 4 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:30:10,871 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 21:30:10,871 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 21:30:10,871 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-26 21:30:10,871 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2023-08-26 21:30:10,872 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 21:30:10,872 INFO L85 PathProgramCache]: Analyzing trace with hash -11137207, now seen corresponding path program 1 times [2023-08-26 21:30:10,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 21:30:10,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126373025] [2023-08-26 21:30:10,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 21:30:10,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 21:30:10,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 21:30:10,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 21:30:10,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 21:30:10,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126373025] [2023-08-26 21:30:10,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1126373025] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 21:30:10,954 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 21:30:10,954 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-26 21:30:10,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725245313] [2023-08-26 21:30:10,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 21:30:10,954 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-26 21:30:10,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 21:30:10,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-26 21:30:10,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-26 21:30:10,955 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 182 [2023-08-26 21:30:10,955 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 50 transitions, 422 flow. Second operand has 5 states, 5 states have (on average 76.2) internal successors, (381), 5 states have internal predecessors, (381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:30:10,955 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 21:30:10,956 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 182 [2023-08-26 21:30:10,956 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 21:30:11,067 INFO L124 PetriNetUnfolderBase]: 296/618 cut-off events. [2023-08-26 21:30:11,067 INFO L125 PetriNetUnfolderBase]: For 4169/4446 co-relation queries the response was YES. [2023-08-26 21:30:11,068 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2828 conditions, 618 events. 296/618 cut-off events. For 4169/4446 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 3484 event pairs, 35 based on Foata normal form. 306/873 useless extension candidates. Maximal degree in co-relation 2800. Up to 171 conditions per place. [2023-08-26 21:30:11,070 INFO L140 encePairwiseOnDemand]: 175/182 looper letters, 68 selfloop transitions, 15 changer transitions 3/97 dead transitions. [2023-08-26 21:30:11,070 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 97 transitions, 918 flow [2023-08-26 21:30:11,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-26 21:30:11,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-26 21:30:11,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 581 transitions. [2023-08-26 21:30:11,072 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45604395604395603 [2023-08-26 21:30:11,072 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 581 transitions. [2023-08-26 21:30:11,072 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 581 transitions. [2023-08-26 21:30:11,072 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 21:30:11,072 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 581 transitions. [2023-08-26 21:30:11,073 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 83.0) internal successors, (581), 7 states have internal predecessors, (581), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:30:11,074 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 182.0) internal successors, (1456), 8 states have internal predecessors, (1456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:30:11,075 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 182.0) internal successors, (1456), 8 states have internal predecessors, (1456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:30:11,075 INFO L175 Difference]: Start difference. First operand has 54 places, 50 transitions, 422 flow. Second operand 7 states and 581 transitions. [2023-08-26 21:30:11,075 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 97 transitions, 918 flow [2023-08-26 21:30:11,078 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 97 transitions, 870 flow, removed 2 selfloop flow, removed 3 redundant places. [2023-08-26 21:30:11,079 INFO L231 Difference]: Finished difference. Result has 60 places, 51 transitions, 433 flow [2023-08-26 21:30:11,079 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=356, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=433, PETRI_PLACES=60, PETRI_TRANSITIONS=51} [2023-08-26 21:30:11,080 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 26 predicate places. [2023-08-26 21:30:11,080 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 51 transitions, 433 flow [2023-08-26 21:30:11,080 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 76.2) internal successors, (381), 5 states have internal predecessors, (381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:30:11,080 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 21:30:11,080 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 21:30:11,080 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-26 21:30:11,080 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2023-08-26 21:30:11,081 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 21:30:11,081 INFO L85 PathProgramCache]: Analyzing trace with hash -2108282420, now seen corresponding path program 1 times [2023-08-26 21:30:11,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 21:30:11,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591296329] [2023-08-26 21:30:11,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 21:30:11,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 21:30:11,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 21:30:11,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 21:30:11,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 21:30:11,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [591296329] [2023-08-26 21:30:11,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [591296329] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 21:30:11,146 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 21:30:11,146 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-26 21:30:11,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146150151] [2023-08-26 21:30:11,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 21:30:11,147 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-26 21:30:11,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 21:30:11,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-26 21:30:11,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-26 21:30:11,147 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 182 [2023-08-26 21:30:11,148 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 51 transitions, 433 flow. Second operand has 4 states, 4 states have (on average 73.5) internal successors, (294), 4 states have internal predecessors, (294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:30:11,148 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 21:30:11,148 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 182 [2023-08-26 21:30:11,148 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 21:30:11,250 INFO L124 PetriNetUnfolderBase]: 535/967 cut-off events. [2023-08-26 21:30:11,250 INFO L125 PetriNetUnfolderBase]: For 5128/5128 co-relation queries the response was YES. [2023-08-26 21:30:11,252 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5046 conditions, 967 events. 535/967 cut-off events. For 5128/5128 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 4923 event pairs, 44 based on Foata normal form. 10/946 useless extension candidates. Maximal degree in co-relation 5016. Up to 618 conditions per place. [2023-08-26 21:30:11,255 INFO L140 encePairwiseOnDemand]: 173/182 looper letters, 90 selfloop transitions, 25 changer transitions 0/115 dead transitions. [2023-08-26 21:30:11,255 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 115 transitions, 1221 flow [2023-08-26 21:30:11,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-26 21:30:11,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-26 21:30:11,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 407 transitions. [2023-08-26 21:30:11,257 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4472527472527473 [2023-08-26 21:30:11,257 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 407 transitions. [2023-08-26 21:30:11,257 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 407 transitions. [2023-08-26 21:30:11,257 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 21:30:11,257 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 407 transitions. [2023-08-26 21:30:11,258 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 81.4) internal successors, (407), 5 states have internal predecessors, (407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:30:11,259 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 182.0) internal successors, (1092), 6 states have internal predecessors, (1092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:30:11,259 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 182.0) internal successors, (1092), 6 states have internal predecessors, (1092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:30:11,259 INFO L175 Difference]: Start difference. First operand has 60 places, 51 transitions, 433 flow. Second operand 5 states and 407 transitions. [2023-08-26 21:30:11,259 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 115 transitions, 1221 flow [2023-08-26 21:30:11,266 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 115 transitions, 1133 flow, removed 4 selfloop flow, removed 4 redundant places. [2023-08-26 21:30:11,267 INFO L231 Difference]: Finished difference. Result has 63 places, 66 transitions, 667 flow [2023-08-26 21:30:11,267 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=406, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=667, PETRI_PLACES=63, PETRI_TRANSITIONS=66} [2023-08-26 21:30:11,268 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 29 predicate places. [2023-08-26 21:30:11,268 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 66 transitions, 667 flow [2023-08-26 21:30:11,268 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 73.5) internal successors, (294), 4 states have internal predecessors, (294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:30:11,268 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 21:30:11,268 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 21:30:11,268 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-26 21:30:11,268 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2023-08-26 21:30:11,269 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 21:30:11,269 INFO L85 PathProgramCache]: Analyzing trace with hash 339227261, now seen corresponding path program 1 times [2023-08-26 21:30:11,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 21:30:11,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222015084] [2023-08-26 21:30:11,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 21:30:11,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 21:30:11,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 21:30:11,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 21:30:11,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 21:30:11,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222015084] [2023-08-26 21:30:11,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [222015084] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 21:30:11,330 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 21:30:11,330 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-26 21:30:11,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946016144] [2023-08-26 21:30:11,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 21:30:11,330 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-26 21:30:11,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 21:30:11,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-26 21:30:11,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-26 21:30:11,331 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 182 [2023-08-26 21:30:11,331 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 66 transitions, 667 flow. Second operand has 4 states, 4 states have (on average 75.5) internal successors, (302), 4 states have internal predecessors, (302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:30:11,331 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 21:30:11,331 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 182 [2023-08-26 21:30:11,331 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 21:30:11,443 INFO L124 PetriNetUnfolderBase]: 646/1218 cut-off events. [2023-08-26 21:30:11,443 INFO L125 PetriNetUnfolderBase]: For 7381/7381 co-relation queries the response was YES. [2023-08-26 21:30:11,445 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6766 conditions, 1218 events. 646/1218 cut-off events. For 7381/7381 co-relation queries the response was YES. Maximal size of possible extension queue 90. Compared 6787 event pairs, 105 based on Foata normal form. 2/1161 useless extension candidates. Maximal degree in co-relation 6733. Up to 506 conditions per place. [2023-08-26 21:30:11,450 INFO L140 encePairwiseOnDemand]: 174/182 looper letters, 90 selfloop transitions, 26 changer transitions 6/122 dead transitions. [2023-08-26 21:30:11,450 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 122 transitions, 1359 flow [2023-08-26 21:30:11,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-26 21:30:11,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-26 21:30:11,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 340 transitions. [2023-08-26 21:30:11,451 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46703296703296704 [2023-08-26 21:30:11,451 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 340 transitions. [2023-08-26 21:30:11,451 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 340 transitions. [2023-08-26 21:30:11,451 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 21:30:11,451 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 340 transitions. [2023-08-26 21:30:11,482 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 85.0) internal successors, (340), 4 states have internal predecessors, (340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:30:11,483 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 182.0) internal successors, (910), 5 states have internal predecessors, (910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:30:11,483 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 182.0) internal successors, (910), 5 states have internal predecessors, (910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:30:11,483 INFO L175 Difference]: Start difference. First operand has 63 places, 66 transitions, 667 flow. Second operand 4 states and 340 transitions. [2023-08-26 21:30:11,483 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 122 transitions, 1359 flow [2023-08-26 21:30:11,496 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 122 transitions, 1359 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-26 21:30:11,497 INFO L231 Difference]: Finished difference. Result has 69 places, 72 transitions, 892 flow [2023-08-26 21:30:11,497 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=667, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=892, PETRI_PLACES=69, PETRI_TRANSITIONS=72} [2023-08-26 21:30:11,498 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 35 predicate places. [2023-08-26 21:30:11,498 INFO L495 AbstractCegarLoop]: Abstraction has has 69 places, 72 transitions, 892 flow [2023-08-26 21:30:11,498 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 75.5) internal successors, (302), 4 states have internal predecessors, (302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:30:11,498 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 21:30:11,498 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 21:30:11,498 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-26 21:30:11,498 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2023-08-26 21:30:11,498 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 21:30:11,498 INFO L85 PathProgramCache]: Analyzing trace with hash -2117872483, now seen corresponding path program 2 times [2023-08-26 21:30:11,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 21:30:11,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289505415] [2023-08-26 21:30:11,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 21:30:11,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 21:30:11,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 21:30:11,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 21:30:11,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 21:30:11,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289505415] [2023-08-26 21:30:11,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1289505415] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 21:30:11,568 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 21:30:11,568 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-26 21:30:11,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672712512] [2023-08-26 21:30:11,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 21:30:11,569 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-26 21:30:11,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 21:30:11,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-26 21:30:11,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-08-26 21:30:11,569 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 182 [2023-08-26 21:30:11,570 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 72 transitions, 892 flow. Second operand has 6 states, 6 states have (on average 76.0) internal successors, (456), 6 states have internal predecessors, (456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:30:11,570 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 21:30:11,570 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 182 [2023-08-26 21:30:11,570 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 21:30:11,678 INFO L124 PetriNetUnfolderBase]: 332/705 cut-off events. [2023-08-26 21:30:11,678 INFO L125 PetriNetUnfolderBase]: For 6241/6526 co-relation queries the response was YES. [2023-08-26 21:30:11,679 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3869 conditions, 705 events. 332/705 cut-off events. For 6241/6526 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 4505 event pairs, 15 based on Foata normal form. 236/919 useless extension candidates. Maximal degree in co-relation 3831. Up to 207 conditions per place. [2023-08-26 21:30:11,680 INFO L140 encePairwiseOnDemand]: 172/182 looper letters, 0 selfloop transitions, 0 changer transitions 124/124 dead transitions. [2023-08-26 21:30:11,680 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 124 transitions, 1629 flow [2023-08-26 21:30:11,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-26 21:30:11,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-26 21:30:11,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 728 transitions. [2023-08-26 21:30:11,682 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4444444444444444 [2023-08-26 21:30:11,682 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 728 transitions. [2023-08-26 21:30:11,682 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 728 transitions. [2023-08-26 21:30:11,682 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 21:30:11,682 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 728 transitions. [2023-08-26 21:30:11,683 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 80.88888888888889) internal successors, (728), 9 states have internal predecessors, (728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:30:11,685 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 182.0) internal successors, (1820), 10 states have internal predecessors, (1820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:30:11,685 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 182.0) internal successors, (1820), 10 states have internal predecessors, (1820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:30:11,685 INFO L175 Difference]: Start difference. First operand has 69 places, 72 transitions, 892 flow. Second operand 9 states and 728 transitions. [2023-08-26 21:30:11,685 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 124 transitions, 1629 flow [2023-08-26 21:30:11,699 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 124 transitions, 1612 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-26 21:30:11,700 INFO L231 Difference]: Finished difference. Result has 72 places, 0 transitions, 0 flow [2023-08-26 21:30:11,700 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=743, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=0, PETRI_PLACES=72, PETRI_TRANSITIONS=0} [2023-08-26 21:30:11,701 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 38 predicate places. [2023-08-26 21:30:11,701 INFO L495 AbstractCegarLoop]: Abstraction has has 72 places, 0 transitions, 0 flow [2023-08-26 21:30:11,701 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 76.0) internal successors, (456), 6 states have internal predecessors, (456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:30:11,703 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 16 remaining) [2023-08-26 21:30:11,703 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 16 remaining) [2023-08-26 21:30:11,703 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 16 remaining) [2023-08-26 21:30:11,703 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 16 remaining) [2023-08-26 21:30:11,703 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 16 remaining) [2023-08-26 21:30:11,703 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 16 remaining) [2023-08-26 21:30:11,703 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (9 of 16 remaining) [2023-08-26 21:30:11,704 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 16 remaining) [2023-08-26 21:30:11,704 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 16 remaining) [2023-08-26 21:30:11,704 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 16 remaining) [2023-08-26 21:30:11,704 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 16 remaining) [2023-08-26 21:30:11,704 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 16 remaining) [2023-08-26 21:30:11,704 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 16 remaining) [2023-08-26 21:30:11,704 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 16 remaining) [2023-08-26 21:30:11,704 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 16 remaining) [2023-08-26 21:30:11,704 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 16 remaining) [2023-08-26 21:30:11,704 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-26 21:30:11,704 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 21:30:11,707 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-26 21:30:11,707 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-26 21:30:11,709 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.08 09:30:11 BasicIcfg [2023-08-26 21:30:11,709 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-26 21:30:11,709 INFO L158 Benchmark]: Toolchain (without parser) took 5639.40ms. Allocated memory was 339.7MB in the beginning and 505.4MB in the end (delta: 165.7MB). Free memory was 314.4MB in the beginning and 382.3MB in the end (delta: -67.9MB). Peak memory consumption was 98.3MB. Max. memory is 16.0GB. [2023-08-26 21:30:11,710 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 339.7MB. Free memory is still 316.7MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-26 21:30:11,710 INFO L158 Benchmark]: CACSL2BoogieTranslator took 386.88ms. Allocated memory is still 339.7MB. Free memory was 313.9MB in the beginning and 294.1MB in the end (delta: 19.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2023-08-26 21:30:11,710 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.13ms. Allocated memory is still 339.7MB. Free memory was 294.1MB in the beginning and 292.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-26 21:30:11,710 INFO L158 Benchmark]: Boogie Preprocessor took 35.85ms. Allocated memory is still 339.7MB. Free memory was 292.0MB in the beginning and 290.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-26 21:30:11,710 INFO L158 Benchmark]: RCFGBuilder took 389.10ms. Allocated memory is still 339.7MB. Free memory was 290.4MB in the beginning and 274.6MB in the end (delta: 15.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.0GB. [2023-08-26 21:30:11,710 INFO L158 Benchmark]: TraceAbstraction took 4771.34ms. Allocated memory was 339.7MB in the beginning and 505.4MB in the end (delta: 165.7MB). Free memory was 274.1MB in the beginning and 382.3MB in the end (delta: -108.2MB). Peak memory consumption was 58.4MB. Max. memory is 16.0GB. [2023-08-26 21:30:11,711 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 339.7MB. Free memory is still 316.7MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 386.88ms. Allocated memory is still 339.7MB. Free memory was 313.9MB in the beginning and 294.1MB in the end (delta: 19.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 52.13ms. Allocated memory is still 339.7MB. Free memory was 294.1MB in the beginning and 292.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 35.85ms. Allocated memory is still 339.7MB. Free memory was 292.0MB in the beginning and 290.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 389.10ms. Allocated memory is still 339.7MB. Free memory was 290.4MB in the beginning and 274.6MB in the end (delta: 15.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.0GB. * TraceAbstraction took 4771.34ms. Allocated memory was 339.7MB in the beginning and 505.4MB in the end (delta: 165.7MB). Free memory was 274.1MB in the beginning and 382.3MB in the end (delta: -108.2MB). Peak memory consumption was 58.4MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 267]: Unsoundness Warning unspecified type, defaulting to int C: short [267] - GenericResultAtLocation [Line: 267]: Unsoundness Warning unspecified type, defaulting to int C: short [267] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.9s, 98 PlacesBefore, 34 PlacesAfterwards, 91 TransitionsBefore, 25 TransitionsAfterwards, 2256 CoEnabledTransitionPairs, 6 FixpointIterations, 19 TrivialSequentialCompositions, 55 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 12 ConcurrentYvCompositions, 2 ChoiceCompositions, 88 TotalNumberOfCompositions, 6509 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3328, independent: 3141, independent conditional: 0, independent unconditional: 3141, dependent: 187, dependent conditional: 0, dependent unconditional: 187, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1310, independent: 1257, independent conditional: 0, independent unconditional: 1257, dependent: 53, dependent conditional: 0, dependent unconditional: 53, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3328, independent: 1884, independent conditional: 0, independent unconditional: 1884, dependent: 134, dependent conditional: 0, dependent unconditional: 134, unknown: 1310, unknown conditional: 0, unknown unconditional: 1310] , Statistics on independence cache: Total cache size (in pairs): 112, Positive cache size: 96, Positive conditional cache size: 0, Positive unconditional cache size: 96, 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: 733]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 733]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 748]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 748]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 763]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 763]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 17]: 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 7 procedures, 122 locations, 16 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 4.7s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 231 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 231 mSDsluCounter, 35 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 7 mSDsCounter, 55 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 643 IncrementalHoareTripleChecker+Invalid, 698 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 55 mSolverCounterUnsat, 28 mSDtfsCounter, 643 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 33 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=892occurred in iteration=10, InterpolantAutomatonStates: 52, 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, 0.7s InterpolantComputationTime, 115 NumberOfCodeBlocks, 115 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 104 ConstructedInterpolants, 0 QuantifiedInterpolants, 454 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 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 7 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-26 21:30:11,729 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...