/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/safe012_tso.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-26 21:25:42,399 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-26 21:25:42,460 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 21:25:42,463 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-26 21:25:42,464 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-26 21:25:42,486 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-26 21:25:42,487 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-26 21:25:42,487 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-26 21:25:42,487 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-26 21:25:42,490 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-26 21:25:42,490 INFO L153 SettingsManager]: * Use SBE=true [2023-08-26 21:25:42,491 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-26 21:25:42,491 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-26 21:25:42,492 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-26 21:25:42,492 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-26 21:25:42,492 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-26 21:25:42,492 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-26 21:25:42,492 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-26 21:25:42,493 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-26 21:25:42,493 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-26 21:25:42,493 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-26 21:25:42,494 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-26 21:25:42,494 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-26 21:25:42,494 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-26 21:25:42,494 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-26 21:25:42,494 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-26 21:25:42,495 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-26 21:25:42,495 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 21:25:42,495 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-26 21:25:42,495 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-26 21:25:42,496 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-26 21:25:42,496 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-26 21:25:42,496 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-26 21:25:42,496 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-26 21:25:42,496 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-26 21:25:42,497 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2023-08-26 21:25:42,751 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-26 21:25:42,771 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-26 21:25:42,772 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-26 21:25:42,773 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-26 21:25:42,773 INFO L274 PluginConnector]: CDTParser initialized [2023-08-26 21:25:42,774 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe012_tso.i [2023-08-26 21:25:43,873 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-26 21:25:44,089 INFO L384 CDTParser]: Found 1 translation units. [2023-08-26 21:25:44,090 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe012_tso.i [2023-08-26 21:25:44,103 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f6f7daa1a/74ce47e352724a42abd5d05f4b01eba9/FLAG3c1ed028f [2023-08-26 21:25:44,113 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f6f7daa1a/74ce47e352724a42abd5d05f4b01eba9 [2023-08-26 21:25:44,115 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-26 21:25:44,116 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-26 21:25:44,116 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-26 21:25:44,116 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-26 21:25:44,118 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-26 21:25:44,119 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 09:25:44" (1/1) ... [2023-08-26 21:25:44,119 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d9d97d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:25:44, skipping insertion in model container [2023-08-26 21:25:44,120 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 09:25:44" (1/1) ... [2023-08-26 21:25:44,157 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-26 21:25:44,397 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 21:25:44,405 INFO L201 MainTranslator]: Completed pre-run [2023-08-26 21:25:44,437 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [267] [2023-08-26 21:25:44,438 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [267] [2023-08-26 21:25:44,449 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 21:25:44,477 WARN L669 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-26 21:25:44,477 WARN L669 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-26 21:25:44,482 INFO L206 MainTranslator]: Completed translation [2023-08-26 21:25:44,482 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:25:44 WrapperNode [2023-08-26 21:25:44,483 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-26 21:25:44,483 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-26 21:25:44,484 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-26 21:25:44,484 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-26 21:25:44,488 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:25:44" (1/1) ... [2023-08-26 21:25:44,514 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:25:44" (1/1) ... [2023-08-26 21:25:44,533 INFO L138 Inliner]: procedures = 176, calls = 54, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 75 [2023-08-26 21:25:44,534 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-26 21:25:44,535 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-26 21:25:44,535 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-26 21:25:44,535 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-26 21:25:44,541 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:25:44" (1/1) ... [2023-08-26 21:25:44,542 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:25:44" (1/1) ... [2023-08-26 21:25:44,556 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:25:44" (1/1) ... [2023-08-26 21:25:44,556 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:25:44" (1/1) ... [2023-08-26 21:25:44,560 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:25:44" (1/1) ... [2023-08-26 21:25:44,561 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:25:44" (1/1) ... [2023-08-26 21:25:44,562 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:25:44" (1/1) ... [2023-08-26 21:25:44,563 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:25:44" (1/1) ... [2023-08-26 21:25:44,564 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-26 21:25:44,565 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-26 21:25:44,565 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-26 21:25:44,565 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-26 21:25:44,566 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:25:44" (1/1) ... [2023-08-26 21:25:44,578 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 21:25:44,586 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 21:25:44,631 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 21:25:44,651 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 21:25:44,666 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-26 21:25:44,666 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-26 21:25:44,666 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-26 21:25:44,666 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-26 21:25:44,666 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-26 21:25:44,666 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-08-26 21:25:44,666 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-08-26 21:25:44,667 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-08-26 21:25:44,667 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-08-26 21:25:44,667 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-08-26 21:25:44,667 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-08-26 21:25:44,667 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-26 21:25:44,667 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-26 21:25:44,667 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-26 21:25:44,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-26 21:25:44,669 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 21:25:44,790 INFO L236 CfgBuilder]: Building ICFG [2023-08-26 21:25:44,791 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-26 21:25:44,943 INFO L277 CfgBuilder]: Performing block encoding [2023-08-26 21:25:44,960 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-26 21:25:44,960 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-26 21:25:44,962 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 09:25:44 BoogieIcfgContainer [2023-08-26 21:25:44,962 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-26 21:25:44,963 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-26 21:25:44,963 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-26 21:25:44,966 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-26 21:25:44,966 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.08 09:25:44" (1/3) ... [2023-08-26 21:25:44,966 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fb11390 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 09:25:44, skipping insertion in model container [2023-08-26 21:25:44,966 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:25:44" (2/3) ... [2023-08-26 21:25:44,967 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fb11390 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 09:25:44, skipping insertion in model container [2023-08-26 21:25:44,967 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 09:25:44" (3/3) ... [2023-08-26 21:25:44,968 INFO L112 eAbstractionObserver]: Analyzing ICFG safe012_tso.i [2023-08-26 21:25:44,980 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-26 21:25:44,980 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2023-08-26 21:25:44,980 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-26 21:25:45,015 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-26 21:25:45,039 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 103 places, 96 transitions, 207 flow [2023-08-26 21:25:45,090 INFO L124 PetriNetUnfolderBase]: 3/93 cut-off events. [2023-08-26 21:25:45,090 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 21:25:45,094 INFO L83 FinitePrefix]: Finished finitePrefix Result has 103 conditions, 93 events. 3/93 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 71 event pairs, 0 based on Foata normal form. 0/83 useless extension candidates. Maximal degree in co-relation 74. Up to 2 conditions per place. [2023-08-26 21:25:45,094 INFO L82 GeneralOperation]: Start removeDead. Operand has 103 places, 96 transitions, 207 flow [2023-08-26 21:25:45,123 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 100 places, 93 transitions, 195 flow [2023-08-26 21:25:45,126 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-26 21:25:45,132 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 100 places, 93 transitions, 195 flow [2023-08-26 21:25:45,134 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 100 places, 93 transitions, 195 flow [2023-08-26 21:25:45,134 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 100 places, 93 transitions, 195 flow [2023-08-26 21:25:45,173 INFO L124 PetriNetUnfolderBase]: 3/93 cut-off events. [2023-08-26 21:25:45,174 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 21:25:45,174 INFO L83 FinitePrefix]: Finished finitePrefix Result has 103 conditions, 93 events. 3/93 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 71 event pairs, 0 based on Foata normal form. 0/83 useless extension candidates. Maximal degree in co-relation 74. Up to 2 conditions per place. [2023-08-26 21:25:45,176 INFO L119 LiptonReduction]: Number of co-enabled transitions 2256 [2023-08-26 21:25:46,987 INFO L134 LiptonReduction]: Checked pairs total: 7294 [2023-08-26 21:25:46,988 INFO L136 LiptonReduction]: Total number of compositions: 86 [2023-08-26 21:25:47,005 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-26 21:25:47,011 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;@6abd77c3, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-26 21:25:47,011 INFO L358 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2023-08-26 21:25:47,013 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-26 21:25:47,013 INFO L124 PetriNetUnfolderBase]: 0/6 cut-off events. [2023-08-26 21:25:47,013 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 21:25:47,014 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 21:25:47,014 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-26 21:25:47,014 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 21:25:47,018 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 21:25:47,018 INFO L85 PathProgramCache]: Analyzing trace with hash 340926564, now seen corresponding path program 1 times [2023-08-26 21:25:47,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 21:25:47,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667338678] [2023-08-26 21:25:47,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 21:25:47,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 21:25:47,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 21:25:47,164 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 21:25:47,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 21:25:47,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1667338678] [2023-08-26 21:25:47,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1667338678] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 21:25:47,165 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 21:25:47,165 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-26 21:25:47,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597306368] [2023-08-26 21:25:47,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 21:25:47,172 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 21:25:47,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 21:25:47,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 21:25:47,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 21:25:47,189 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 182 [2023-08-26 21:25:47,191 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 26 transitions, 61 flow. Second operand has 3 states, 3 states have (on average 79.33333333333333) internal successors, (238), 3 states have internal predecessors, (238), 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 21:25:47,191 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 21:25:47,191 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 182 [2023-08-26 21:25:47,191 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 21:25:47,319 INFO L124 PetriNetUnfolderBase]: 532/887 cut-off events. [2023-08-26 21:25:47,320 INFO L125 PetriNetUnfolderBase]: For 12/12 co-relation queries the response was YES. [2023-08-26 21:25:47,321 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1804 conditions, 887 events. 532/887 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 4682 event pairs, 306 based on Foata normal form. 8/553 useless extension candidates. Maximal degree in co-relation 1793. Up to 843 conditions per place. [2023-08-26 21:25:47,325 INFO L140 encePairwiseOnDemand]: 170/182 looper letters, 28 selfloop transitions, 4 changer transitions 0/35 dead transitions. [2023-08-26 21:25:47,325 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 35 transitions, 149 flow [2023-08-26 21:25:47,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 21:25:47,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 21:25:47,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 275 transitions. [2023-08-26 21:25:47,334 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5036630036630036 [2023-08-26 21:25:47,335 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 275 transitions. [2023-08-26 21:25:47,335 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 275 transitions. [2023-08-26 21:25:47,336 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 21:25:47,337 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 275 transitions. [2023-08-26 21:25:47,339 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 91.66666666666667) internal successors, (275), 3 states have internal predecessors, (275), 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 21:25:47,342 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 21:25:47,342 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 21:25:47,344 INFO L175 Difference]: Start difference. First operand has 35 places, 26 transitions, 61 flow. Second operand 3 states and 275 transitions. [2023-08-26 21:25:47,344 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 35 transitions, 149 flow [2023-08-26 21:25:47,346 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 35 transitions, 144 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-26 21:25:47,347 INFO L231 Difference]: Finished difference. Result has 35 places, 28 transitions, 94 flow [2023-08-26 21:25:47,348 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=56, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=94, PETRI_PLACES=35, PETRI_TRANSITIONS=28} [2023-08-26 21:25:47,350 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 0 predicate places. [2023-08-26 21:25:47,350 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 28 transitions, 94 flow [2023-08-26 21:25:47,350 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.33333333333333) internal successors, (238), 3 states have internal predecessors, (238), 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 21:25:47,350 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 21:25:47,350 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 21:25:47,351 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-26 21:25:47,351 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2023-08-26 21:25:47,351 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 21:25:47,351 INFO L85 PathProgramCache]: Analyzing trace with hash -230114326, now seen corresponding path program 1 times [2023-08-26 21:25:47,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 21:25:47,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775027841] [2023-08-26 21:25:47,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 21:25:47,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 21:25:47,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 21:25:47,411 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 21:25:47,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 21:25:47,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775027841] [2023-08-26 21:25:47,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [775027841] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 21:25:47,412 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 21:25:47,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 21:25:47,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503607008] [2023-08-26 21:25:47,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 21:25:47,413 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-26 21:25:47,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 21:25:47,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-26 21:25:47,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-26 21:25:47,414 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 182 [2023-08-26 21:25:47,414 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 28 transitions, 94 flow. Second operand has 4 states, 4 states have (on average 80.0) internal successors, (320), 4 states have internal predecessors, (320), 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 21:25:47,414 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 21:25:47,414 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 182 [2023-08-26 21:25:47,414 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 21:25:47,476 INFO L124 PetriNetUnfolderBase]: 327/558 cut-off events. [2023-08-26 21:25:47,476 INFO L125 PetriNetUnfolderBase]: For 85/85 co-relation queries the response was YES. [2023-08-26 21:25:47,477 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1441 conditions, 558 events. 327/558 cut-off events. For 85/85 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 2574 event pairs, 150 based on Foata normal form. 0/409 useless extension candidates. Maximal degree in co-relation 1430. Up to 513 conditions per place. [2023-08-26 21:25:47,479 INFO L140 encePairwiseOnDemand]: 175/182 looper letters, 25 selfloop transitions, 4 changer transitions 0/32 dead transitions. [2023-08-26 21:25:47,479 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 32 transitions, 158 flow [2023-08-26 21:25:47,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-26 21:25:47,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-26 21:25:47,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 344 transitions. [2023-08-26 21:25:47,481 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4725274725274725 [2023-08-26 21:25:47,481 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 344 transitions. [2023-08-26 21:25:47,482 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 344 transitions. [2023-08-26 21:25:47,482 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 21:25:47,482 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 344 transitions. [2023-08-26 21:25:47,483 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 86.0) internal successors, (344), 4 states have internal predecessors, (344), 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 21:25:47,484 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 21:25:47,484 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 21:25:47,484 INFO L175 Difference]: Start difference. First operand has 35 places, 28 transitions, 94 flow. Second operand 4 states and 344 transitions. [2023-08-26 21:25:47,485 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 32 transitions, 158 flow [2023-08-26 21:25:47,485 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 32 transitions, 154 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-26 21:25:47,485 INFO L231 Difference]: Finished difference. Result has 34 places, 25 transitions, 86 flow [2023-08-26 21:25:47,486 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=86, PETRI_PLACES=34, PETRI_TRANSITIONS=25} [2023-08-26 21:25:47,487 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, -1 predicate places. [2023-08-26 21:25:47,487 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 25 transitions, 86 flow [2023-08-26 21:25:47,488 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 80.0) internal successors, (320), 4 states have internal predecessors, (320), 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 21:25:47,490 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 21:25:47,490 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 21:25:47,491 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-26 21:25:47,494 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2023-08-26 21:25:47,494 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 21:25:47,494 INFO L85 PathProgramCache]: Analyzing trace with hash -230278005, now seen corresponding path program 1 times [2023-08-26 21:25:47,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 21:25:47,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851928130] [2023-08-26 21:25:47,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 21:25:47,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 21:25:47,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 21:25:47,547 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 21:25:47,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 21:25:47,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851928130] [2023-08-26 21:25:47,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1851928130] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 21:25:47,547 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 21:25:47,548 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 21:25:47,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122562927] [2023-08-26 21:25:47,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 21:25:47,548 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-26 21:25:47,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 21:25:47,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-26 21:25:47,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-26 21:25:47,550 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 182 [2023-08-26 21:25:47,550 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 25 transitions, 86 flow. Second operand has 4 states, 4 states have (on average 80.0) internal successors, (320), 4 states have internal predecessors, (320), 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 21:25:47,550 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 21:25:47,550 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 182 [2023-08-26 21:25:47,550 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 21:25:47,614 INFO L124 PetriNetUnfolderBase]: 92/196 cut-off events. [2023-08-26 21:25:47,614 INFO L125 PetriNetUnfolderBase]: For 75/75 co-relation queries the response was YES. [2023-08-26 21:25:47,615 INFO L83 FinitePrefix]: Finished finitePrefix Result has 515 conditions, 196 events. 92/196 cut-off events. For 75/75 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 684 event pairs, 31 based on Foata normal form. 12/180 useless extension candidates. Maximal degree in co-relation 503. Up to 104 conditions per place. [2023-08-26 21:25:47,615 INFO L140 encePairwiseOnDemand]: 174/182 looper letters, 30 selfloop transitions, 7 changer transitions 0/40 dead transitions. [2023-08-26 21:25:47,615 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 40 transitions, 202 flow [2023-08-26 21:25:47,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-26 21:25:47,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-26 21:25:47,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 353 transitions. [2023-08-26 21:25:47,617 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4848901098901099 [2023-08-26 21:25:47,617 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 353 transitions. [2023-08-26 21:25:47,617 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 353 transitions. [2023-08-26 21:25:47,617 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 21:25:47,617 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 353 transitions. [2023-08-26 21:25:47,618 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 88.25) internal successors, (353), 4 states have internal predecessors, (353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 21:25:47,619 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 21:25:47,619 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 21:25:47,619 INFO L175 Difference]: Start difference. First operand has 34 places, 25 transitions, 86 flow. Second operand 4 states and 353 transitions. [2023-08-26 21:25:47,619 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 40 transitions, 202 flow [2023-08-26 21:25:47,620 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 40 transitions, 197 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-26 21:25:47,621 INFO L231 Difference]: Finished difference. Result has 36 places, 28 transitions, 127 flow [2023-08-26 21:25:47,621 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=81, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=127, PETRI_PLACES=36, PETRI_TRANSITIONS=28} [2023-08-26 21:25:47,621 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 1 predicate places. [2023-08-26 21:25:47,621 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 28 transitions, 127 flow [2023-08-26 21:25:47,621 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 80.0) internal successors, (320), 4 states have internal predecessors, (320), 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 21:25:47,621 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 21:25:47,622 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 21:25:47,622 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-26 21:25:47,622 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2023-08-26 21:25:47,622 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 21:25:47,622 INFO L85 PathProgramCache]: Analyzing trace with hash -115771280, now seen corresponding path program 1 times [2023-08-26 21:25:47,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 21:25:47,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056292024] [2023-08-26 21:25:47,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 21:25:47,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 21:25:47,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 21:25:47,674 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 21:25:47,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 21:25:47,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1056292024] [2023-08-26 21:25:47,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1056292024] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 21:25:47,675 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 21:25:47,675 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-26 21:25:47,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665282228] [2023-08-26 21:25:47,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 21:25:47,675 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-26 21:25:47,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 21:25:47,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-26 21:25:47,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-08-26 21:25:47,676 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 182 [2023-08-26 21:25:47,676 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 28 transitions, 127 flow. Second operand has 5 states, 5 states have (on average 80.4) internal successors, (402), 5 states have internal predecessors, (402), 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 21:25:47,677 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 21:25:47,677 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 182 [2023-08-26 21:25:47,677 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 21:25:47,719 INFO L124 PetriNetUnfolderBase]: 56/121 cut-off events. [2023-08-26 21:25:47,719 INFO L125 PetriNetUnfolderBase]: For 132/132 co-relation queries the response was YES. [2023-08-26 21:25:47,720 INFO L83 FinitePrefix]: Finished finitePrefix Result has 388 conditions, 121 events. 56/121 cut-off events. For 132/132 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 357 event pairs, 15 based on Foata normal form. 6/123 useless extension candidates. Maximal degree in co-relation 375. Up to 48 conditions per place. [2023-08-26 21:25:47,720 INFO L140 encePairwiseOnDemand]: 174/182 looper letters, 23 selfloop transitions, 10 changer transitions 1/37 dead transitions. [2023-08-26 21:25:47,720 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 37 transitions, 207 flow [2023-08-26 21:25:47,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-26 21:25:47,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-26 21:25:47,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 428 transitions. [2023-08-26 21:25:47,721 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4703296703296703 [2023-08-26 21:25:47,721 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 428 transitions. [2023-08-26 21:25:47,721 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 428 transitions. [2023-08-26 21:25:47,722 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 21:25:47,722 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 428 transitions. [2023-08-26 21:25:47,722 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 85.6) internal successors, (428), 5 states have internal predecessors, (428), 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 21:25:47,724 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 21:25:47,724 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 21:25:47,724 INFO L175 Difference]: Start difference. First operand has 36 places, 28 transitions, 127 flow. Second operand 5 states and 428 transitions. [2023-08-26 21:25:47,724 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 37 transitions, 207 flow [2023-08-26 21:25:47,725 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 37 transitions, 193 flow, removed 3 selfloop flow, removed 2 redundant places. [2023-08-26 21:25:47,726 INFO L231 Difference]: Finished difference. Result has 36 places, 24 transitions, 121 flow [2023-08-26 21:25:47,726 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=95, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=121, PETRI_PLACES=36, PETRI_TRANSITIONS=24} [2023-08-26 21:25:47,726 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 1 predicate places. [2023-08-26 21:25:47,726 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 24 transitions, 121 flow [2023-08-26 21:25:47,726 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 80.4) internal successors, (402), 5 states have internal predecessors, (402), 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 21:25:47,727 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 21:25:47,727 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 21:25:47,727 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-26 21:25:47,727 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2023-08-26 21:25:47,727 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 21:25:47,727 INFO L85 PathProgramCache]: Analyzing trace with hash -81661780, now seen corresponding path program 1 times [2023-08-26 21:25:47,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 21:25:47,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738693070] [2023-08-26 21:25:47,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 21:25:47,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 21:25:47,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 21:25:47,855 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 21:25:47,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 21:25:47,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738693070] [2023-08-26 21:25:47,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1738693070] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 21:25:47,855 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 21:25:47,855 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-26 21:25:47,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219207413] [2023-08-26 21:25:47,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 21:25:47,856 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-26 21:25:47,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 21:25:47,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-26 21:25:47,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-26 21:25:47,857 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 182 [2023-08-26 21:25:47,857 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 24 transitions, 121 flow. Second operand has 5 states, 5 states have (on average 75.2) internal successors, (376), 5 states have internal predecessors, (376), 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 21:25:47,858 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 21:25:47,858 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 182 [2023-08-26 21:25:47,858 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 21:25:47,957 INFO L124 PetriNetUnfolderBase]: 96/213 cut-off events. [2023-08-26 21:25:47,958 INFO L125 PetriNetUnfolderBase]: For 288/288 co-relation queries the response was YES. [2023-08-26 21:25:47,958 INFO L83 FinitePrefix]: Finished finitePrefix Result has 691 conditions, 213 events. 96/213 cut-off events. For 288/288 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 870 event pairs, 3 based on Foata normal form. 1/214 useless extension candidates. Maximal degree in co-relation 677. Up to 89 conditions per place. [2023-08-26 21:25:47,959 INFO L140 encePairwiseOnDemand]: 175/182 looper letters, 37 selfloop transitions, 8 changer transitions 8/55 dead transitions. [2023-08-26 21:25:47,959 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 55 transitions, 384 flow [2023-08-26 21:25:47,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-26 21:25:47,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-26 21:25:47,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 472 transitions. [2023-08-26 21:25:47,960 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43223443223443225 [2023-08-26 21:25:47,960 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 472 transitions. [2023-08-26 21:25:47,960 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 472 transitions. [2023-08-26 21:25:47,960 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 21:25:47,960 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 472 transitions. [2023-08-26 21:25:47,961 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 78.66666666666667) internal successors, (472), 6 states have internal predecessors, (472), 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 21:25:47,962 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 182.0) internal successors, (1274), 7 states have internal predecessors, (1274), 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 21:25:47,963 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 182.0) internal successors, (1274), 7 states have internal predecessors, (1274), 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 21:25:47,963 INFO L175 Difference]: Start difference. First operand has 36 places, 24 transitions, 121 flow. Second operand 6 states and 472 transitions. [2023-08-26 21:25:47,963 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 55 transitions, 384 flow [2023-08-26 21:25:47,965 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 55 transitions, 328 flow, removed 12 selfloop flow, removed 3 redundant places. [2023-08-26 21:25:47,965 INFO L231 Difference]: Finished difference. Result has 41 places, 30 transitions, 147 flow [2023-08-26 21:25:47,965 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=95, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=147, PETRI_PLACES=41, PETRI_TRANSITIONS=30} [2023-08-26 21:25:47,966 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 6 predicate places. [2023-08-26 21:25:47,966 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 30 transitions, 147 flow [2023-08-26 21:25:47,966 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 75.2) internal successors, (376), 5 states have internal predecessors, (376), 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 21:25:47,966 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 21:25:47,966 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 21:25:47,966 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-26 21:25:47,966 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2023-08-26 21:25:47,966 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 21:25:47,967 INFO L85 PathProgramCache]: Analyzing trace with hash -93787666, now seen corresponding path program 2 times [2023-08-26 21:25:47,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 21:25:47,967 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753944686] [2023-08-26 21:25:47,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 21:25:47,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 21:25:47,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 21:25:48,094 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 21:25:48,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 21:25:48,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753944686] [2023-08-26 21:25:48,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1753944686] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 21:25:48,095 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 21:25:48,095 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-26 21:25:48,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675400614] [2023-08-26 21:25:48,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 21:25:48,096 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-26 21:25:48,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 21:25:48,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-26 21:25:48,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-26 21:25:48,097 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 182 [2023-08-26 21:25:48,098 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 30 transitions, 147 flow. Second operand has 5 states, 5 states have (on average 79.2) internal successors, (396), 5 states have internal predecessors, (396), 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 21:25:48,098 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 21:25:48,098 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 182 [2023-08-26 21:25:48,098 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 21:25:48,154 INFO L124 PetriNetUnfolderBase]: 117/263 cut-off events. [2023-08-26 21:25:48,154 INFO L125 PetriNetUnfolderBase]: For 342/345 co-relation queries the response was YES. [2023-08-26 21:25:48,155 INFO L83 FinitePrefix]: Finished finitePrefix Result has 936 conditions, 263 events. 117/263 cut-off events. For 342/345 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 1173 event pairs, 29 based on Foata normal form. 2/259 useless extension candidates. Maximal degree in co-relation 923. Up to 108 conditions per place. [2023-08-26 21:25:48,155 INFO L140 encePairwiseOnDemand]: 177/182 looper letters, 29 selfloop transitions, 4 changer transitions 14/50 dead transitions. [2023-08-26 21:25:48,155 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 50 transitions, 354 flow [2023-08-26 21:25:48,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-26 21:25:48,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-26 21:25:48,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 408 transitions. [2023-08-26 21:25:48,157 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44835164835164837 [2023-08-26 21:25:48,157 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 408 transitions. [2023-08-26 21:25:48,157 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 408 transitions. [2023-08-26 21:25:48,158 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 21:25:48,158 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 408 transitions. [2023-08-26 21:25:48,159 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 81.6) internal successors, (408), 5 states have internal predecessors, (408), 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 21:25:48,160 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 21:25:48,161 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 21:25:48,161 INFO L175 Difference]: Start difference. First operand has 41 places, 30 transitions, 147 flow. Second operand 5 states and 408 transitions. [2023-08-26 21:25:48,161 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 50 transitions, 354 flow [2023-08-26 21:25:48,165 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 50 transitions, 352 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-08-26 21:25:48,166 INFO L231 Difference]: Finished difference. Result has 45 places, 28 transitions, 151 flow [2023-08-26 21:25:48,166 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=145, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=151, PETRI_PLACES=45, PETRI_TRANSITIONS=28} [2023-08-26 21:25:48,167 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 10 predicate places. [2023-08-26 21:25:48,169 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 28 transitions, 151 flow [2023-08-26 21:25:48,170 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 79.2) internal successors, (396), 5 states have internal predecessors, (396), 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 21:25:48,170 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 21:25:48,171 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 21:25:48,171 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-26 21:25:48,171 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 21:25:48,171 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 21:25:48,171 INFO L85 PathProgramCache]: Analyzing trace with hash 1833045140, now seen corresponding path program 3 times [2023-08-26 21:25:48,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 21:25:48,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244149364] [2023-08-26 21:25:48,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 21:25:48,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 21:25:48,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 21:25:48,290 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 21:25:48,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 21:25:48,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244149364] [2023-08-26 21:25:48,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1244149364] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 21:25:48,291 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 21:25:48,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-26 21:25:48,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999789523] [2023-08-26 21:25:48,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 21:25:48,291 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-26 21:25:48,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 21:25:48,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-26 21:25:48,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-08-26 21:25:48,292 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 182 [2023-08-26 21:25:48,292 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 28 transitions, 151 flow. Second operand has 6 states, 6 states have (on average 74.83333333333333) internal successors, (449), 6 states have internal predecessors, (449), 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 21:25:48,292 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 21:25:48,293 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 182 [2023-08-26 21:25:48,293 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 21:25:48,331 INFO L124 PetriNetUnfolderBase]: 90/193 cut-off events. [2023-08-26 21:25:48,332 INFO L125 PetriNetUnfolderBase]: For 280/280 co-relation queries the response was YES. [2023-08-26 21:25:48,332 INFO L83 FinitePrefix]: Finished finitePrefix Result has 752 conditions, 193 events. 90/193 cut-off events. For 280/280 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 685 event pairs, 48 based on Foata normal form. 1/193 useless extension candidates. Maximal degree in co-relation 740. Up to 135 conditions per place. [2023-08-26 21:25:48,332 INFO L140 encePairwiseOnDemand]: 178/182 looper letters, 0 selfloop transitions, 0 changer transitions 32/32 dead transitions. [2023-08-26 21:25:48,332 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 32 transitions, 241 flow [2023-08-26 21:25:48,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-26 21:25:48,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-26 21:25:48,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 380 transitions. [2023-08-26 21:25:48,333 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4175824175824176 [2023-08-26 21:25:48,333 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 380 transitions. [2023-08-26 21:25:48,333 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 380 transitions. [2023-08-26 21:25:48,333 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 21:25:48,333 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 380 transitions. [2023-08-26 21:25:48,334 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 76.0) internal successors, (380), 5 states have internal predecessors, (380), 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 21:25:48,335 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 21:25:48,335 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 21:25:48,335 INFO L175 Difference]: Start difference. First operand has 45 places, 28 transitions, 151 flow. Second operand 5 states and 380 transitions. [2023-08-26 21:25:48,335 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 32 transitions, 241 flow [2023-08-26 21:25:48,336 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 32 transitions, 226 flow, removed 2 selfloop flow, removed 4 redundant places. [2023-08-26 21:25:48,337 INFO L231 Difference]: Finished difference. Result has 43 places, 0 transitions, 0 flow [2023-08-26 21:25:48,337 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=132, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=43, PETRI_TRANSITIONS=0} [2023-08-26 21:25:48,337 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 8 predicate places. [2023-08-26 21:25:48,337 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 0 transitions, 0 flow [2023-08-26 21:25:48,337 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 74.83333333333333) internal successors, (449), 6 states have internal predecessors, (449), 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 21:25:48,339 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 16 remaining) [2023-08-26 21:25:48,339 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 16 remaining) [2023-08-26 21:25:48,339 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 16 remaining) [2023-08-26 21:25:48,339 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 16 remaining) [2023-08-26 21:25:48,339 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 16 remaining) [2023-08-26 21:25:48,340 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 16 remaining) [2023-08-26 21:25:48,340 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (9 of 16 remaining) [2023-08-26 21:25:48,340 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 16 remaining) [2023-08-26 21:25:48,340 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 16 remaining) [2023-08-26 21:25:48,340 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 16 remaining) [2023-08-26 21:25:48,340 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 16 remaining) [2023-08-26 21:25:48,340 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 16 remaining) [2023-08-26 21:25:48,340 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 16 remaining) [2023-08-26 21:25:48,340 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 16 remaining) [2023-08-26 21:25:48,340 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 16 remaining) [2023-08-26 21:25:48,340 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 16 remaining) [2023-08-26 21:25:48,341 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-26 21:25:48,341 INFO L445 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1, 1] [2023-08-26 21:25:48,344 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-26 21:25:48,344 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-26 21:25:48,346 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.08 09:25:48 BasicIcfg [2023-08-26 21:25:48,346 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-26 21:25:48,346 INFO L158 Benchmark]: Toolchain (without parser) took 4230.59ms. Allocated memory was 411.0MB in the beginning and 597.7MB in the end (delta: 186.6MB). Free memory was 386.0MB in the beginning and 448.2MB in the end (delta: -62.1MB). Peak memory consumption was 125.5MB. Max. memory is 16.0GB. [2023-08-26 21:25:48,346 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 411.0MB. Free memory is still 387.2MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-26 21:25:48,347 INFO L158 Benchmark]: CACSL2BoogieTranslator took 366.49ms. Allocated memory is still 411.0MB. Free memory was 385.7MB in the beginning and 365.6MB in the end (delta: 20.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. [2023-08-26 21:25:48,347 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.78ms. Allocated memory is still 411.0MB. Free memory was 365.6MB in the beginning and 363.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-26 21:25:48,347 INFO L158 Benchmark]: Boogie Preprocessor took 29.76ms. Allocated memory is still 411.0MB. Free memory was 363.5MB in the beginning and 362.0MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-26 21:25:48,347 INFO L158 Benchmark]: RCFGBuilder took 397.08ms. Allocated memory is still 411.0MB. Free memory was 362.0MB in the beginning and 346.0MB in the end (delta: 16.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.0GB. [2023-08-26 21:25:48,347 INFO L158 Benchmark]: TraceAbstraction took 3382.58ms. Allocated memory was 411.0MB in the beginning and 597.7MB in the end (delta: 186.6MB). Free memory was 345.6MB in the beginning and 448.2MB in the end (delta: -102.5MB). Peak memory consumption was 85.6MB. Max. memory is 16.0GB. [2023-08-26 21:25:48,348 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 411.0MB. Free memory is still 387.2MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 366.49ms. Allocated memory is still 411.0MB. Free memory was 385.7MB in the beginning and 365.6MB in the end (delta: 20.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 50.78ms. Allocated memory is still 411.0MB. Free memory was 365.6MB in the beginning and 363.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 29.76ms. Allocated memory is still 411.0MB. Free memory was 363.5MB in the beginning and 362.0MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.0GB. * RCFGBuilder took 397.08ms. Allocated memory is still 411.0MB. Free memory was 362.0MB in the beginning and 346.0MB in the end (delta: 16.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.0GB. * TraceAbstraction took 3382.58ms. Allocated memory was 411.0MB in the beginning and 597.7MB in the end (delta: 186.6MB). Free memory was 345.6MB in the beginning and 448.2MB in the end (delta: -102.5MB). Peak memory consumption was 85.6MB. 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, 100 PlacesBefore, 35 PlacesAfterwards, 93 TransitionsBefore, 26 TransitionsAfterwards, 2256 CoEnabledTransitionPairs, 7 FixpointIterations, 21 TrivialSequentialCompositions, 48 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 15 ConcurrentYvCompositions, 2 ChoiceCompositions, 86 TotalNumberOfCompositions, 7294 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3031, independent: 2825, independent conditional: 0, independent unconditional: 2825, dependent: 206, dependent conditional: 0, dependent unconditional: 206, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1233, independent: 1196, independent conditional: 0, independent unconditional: 1196, dependent: 37, dependent conditional: 0, dependent unconditional: 37, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3031, independent: 1629, independent conditional: 0, independent unconditional: 1629, dependent: 169, dependent conditional: 0, dependent unconditional: 169, unknown: 1233, unknown conditional: 0, unknown unconditional: 1233] , Statistics on independence cache: Total cache size (in pairs): 104, Positive cache size: 89, Positive conditional cache size: 0, Positive unconditional cache size: 89, Negative cache size: 15, Negative conditional cache size: 0, Negative unconditional cache size: 15, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 735]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 735]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 750]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 750]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 765]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 765]: 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, 124 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: 3.3s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 105 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 105 mSDsluCounter, 12 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 5 mSDsCounter, 30 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 356 IncrementalHoareTripleChecker+Invalid, 386 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 30 mSolverCounterUnsat, 7 mSDtfsCounter, 356 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 26 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=151occurred in iteration=6, InterpolantAutomatonStates: 32, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 94 NumberOfCodeBlocks, 94 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 87 ConstructedInterpolants, 0 QuantifiedInterpolants, 352 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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 21:25:48,373 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...