/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf --traceabstraction.order.of.the.error.locations.to.be.checked PROGRAM_FIRST -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true -i ../../../trunk/examples/svcomp/weaver/popl20-proofs-counter-add-4-semi-Q67.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-27 14:59:40,843 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-27 14:59:40,930 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf [2023-08-27 14:59:40,934 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-27 14:59:40,935 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-27 14:59:40,966 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-27 14:59:40,967 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-27 14:59:40,967 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-27 14:59:40,968 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-27 14:59:40,971 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-27 14:59:40,971 INFO L153 SettingsManager]: * Use SBE=true [2023-08-27 14:59:40,972 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-27 14:59:40,972 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-27 14:59:40,973 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-27 14:59:40,973 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-27 14:59:40,973 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-27 14:59:40,973 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-27 14:59:40,974 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-27 14:59:40,974 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-27 14:59:40,974 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-27 14:59:40,974 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-27 14:59:40,975 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-27 14:59:40,975 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-27 14:59:40,976 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-27 14:59:40,976 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-27 14:59:40,976 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-27 14:59:40,976 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-27 14:59:40,977 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-27 14:59:40,977 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-27 14:59:40,977 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-27 14:59:40,978 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-27 14:59:40,978 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-27 14:59:40,978 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-27 14:59:40,978 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-27 14:59:40,979 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-27 14:59:40,979 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> PROGRAM_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2023-08-27 14:59:41,289 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-27 14:59:41,304 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-27 14:59:41,306 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-27 14:59:41,307 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-27 14:59:41,307 INFO L274 PluginConnector]: CDTParser initialized [2023-08-27 14:59:41,308 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-proofs-counter-add-4-semi-Q67.wvr.c [2023-08-27 14:59:42,408 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-27 14:59:42,609 INFO L384 CDTParser]: Found 1 translation units. [2023-08-27 14:59:42,610 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-proofs-counter-add-4-semi-Q67.wvr.c [2023-08-27 14:59:42,615 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a44f6dee6/dd74c948ae734c6c8b2eb0eb106d0135/FLAGad7b8cdc2 [2023-08-27 14:59:42,626 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a44f6dee6/dd74c948ae734c6c8b2eb0eb106d0135 [2023-08-27 14:59:42,628 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-27 14:59:42,629 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-27 14:59:42,630 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-27 14:59:42,630 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-27 14:59:42,632 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-27 14:59:42,632 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 02:59:42" (1/1) ... [2023-08-27 14:59:42,633 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8b4a382 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:59:42, skipping insertion in model container [2023-08-27 14:59:42,633 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 02:59:42" (1/1) ... [2023-08-27 14:59:42,652 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-27 14:59:42,810 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-27 14:59:42,818 INFO L201 MainTranslator]: Completed pre-run [2023-08-27 14:59:42,858 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-27 14:59:42,865 WARN L669 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-27 14:59:42,865 WARN L669 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-27 14:59:42,875 INFO L206 MainTranslator]: Completed translation [2023-08-27 14:59:42,875 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:59:42 WrapperNode [2023-08-27 14:59:42,875 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-27 14:59:42,877 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-27 14:59:42,877 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-27 14:59:42,877 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-27 14:59:42,883 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:59:42" (1/1) ... [2023-08-27 14:59:42,899 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:59:42" (1/1) ... [2023-08-27 14:59:42,929 INFO L138 Inliner]: procedures = 22, calls = 43, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 147 [2023-08-27 14:59:42,929 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-27 14:59:42,931 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-27 14:59:42,931 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-27 14:59:42,931 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-27 14:59:42,938 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:59:42" (1/1) ... [2023-08-27 14:59:42,938 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:59:42" (1/1) ... [2023-08-27 14:59:42,952 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:59:42" (1/1) ... [2023-08-27 14:59:42,952 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:59:42" (1/1) ... [2023-08-27 14:59:42,956 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:59:42" (1/1) ... [2023-08-27 14:59:42,959 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:59:42" (1/1) ... [2023-08-27 14:59:42,970 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:59:42" (1/1) ... [2023-08-27 14:59:42,972 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:59:42" (1/1) ... [2023-08-27 14:59:42,975 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-27 14:59:42,975 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-27 14:59:42,976 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-27 14:59:42,976 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-27 14:59:42,976 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:59:42" (1/1) ... [2023-08-27 14:59:42,981 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-27 14:59:42,995 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-27 14:59:43,010 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-27 14:59:43,037 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-27 14:59:43,054 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-27 14:59:43,054 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-27 14:59:43,054 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-27 14:59:43,055 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-27 14:59:43,055 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-27 14:59:43,055 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-08-27 14:59:43,055 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-08-27 14:59:43,055 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2023-08-27 14:59:43,055 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2023-08-27 14:59:43,056 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-27 14:59:43,056 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-27 14:59:43,056 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-27 14:59:43,056 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-27 14:59:43,056 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-27 14:59:43,056 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-27 14:59:43,056 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-27 14:59:43,057 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-27 14:59:43,057 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-27 14:59:43,059 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-27 14:59:43,175 INFO L236 CfgBuilder]: Building ICFG [2023-08-27 14:59:43,177 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-27 14:59:43,446 INFO L277 CfgBuilder]: Performing block encoding [2023-08-27 14:59:43,591 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-27 14:59:43,592 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-08-27 14:59:43,594 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 02:59:43 BoogieIcfgContainer [2023-08-27 14:59:43,594 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-27 14:59:43,602 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-27 14:59:43,602 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-27 14:59:43,605 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-27 14:59:43,605 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.08 02:59:42" (1/3) ... [2023-08-27 14:59:43,606 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12dcbeec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 02:59:43, skipping insertion in model container [2023-08-27 14:59:43,606 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:59:42" (2/3) ... [2023-08-27 14:59:43,606 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12dcbeec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 02:59:43, skipping insertion in model container [2023-08-27 14:59:43,606 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 02:59:43" (3/3) ... [2023-08-27 14:59:43,607 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-proofs-counter-add-4-semi-Q67.wvr.c [2023-08-27 14:59:43,622 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-27 14:59:43,622 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 17 error locations. [2023-08-27 14:59:43,622 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-27 14:59:43,704 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2023-08-27 14:59:43,734 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 148 places, 145 transitions, 322 flow [2023-08-27 14:59:43,789 INFO L124 PetriNetUnfolderBase]: 10/141 cut-off events. [2023-08-27 14:59:43,789 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-08-27 14:59:43,795 INFO L83 FinitePrefix]: Finished finitePrefix Result has 158 conditions, 141 events. 10/141 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 127 event pairs, 0 based on Foata normal form. 0/114 useless extension candidates. Maximal degree in co-relation 101. Up to 2 conditions per place. [2023-08-27 14:59:43,795 INFO L82 GeneralOperation]: Start removeDead. Operand has 148 places, 145 transitions, 322 flow [2023-08-27 14:59:43,798 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 131 places, 128 transitions, 280 flow [2023-08-27 14:59:43,801 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 14:59:43,808 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 131 places, 128 transitions, 280 flow [2023-08-27 14:59:43,810 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 131 places, 128 transitions, 280 flow [2023-08-27 14:59:43,811 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 131 places, 128 transitions, 280 flow [2023-08-27 14:59:43,840 INFO L124 PetriNetUnfolderBase]: 10/128 cut-off events. [2023-08-27 14:59:43,841 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-08-27 14:59:43,842 INFO L83 FinitePrefix]: Finished finitePrefix Result has 145 conditions, 128 events. 10/128 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 126 event pairs, 0 based on Foata normal form. 0/102 useless extension candidates. Maximal degree in co-relation 101. Up to 2 conditions per place. [2023-08-27 14:59:43,844 INFO L119 LiptonReduction]: Number of co-enabled transitions 2520 [2023-08-27 14:59:48,679 INFO L134 LiptonReduction]: Checked pairs total: 3394 [2023-08-27 14:59:48,680 INFO L136 LiptonReduction]: Total number of compositions: 113 [2023-08-27 14:59:48,692 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-27 14:59:48,698 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;@5816d08b, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 14:59:48,698 INFO L358 AbstractCegarLoop]: Starting to check reachability of 37 error locations. [2023-08-27 14:59:48,700 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 14:59:48,700 INFO L124 PetriNetUnfolderBase]: 1/3 cut-off events. [2023-08-27 14:59:48,700 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 14:59:48,701 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 14:59:48,701 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-27 14:59:48,701 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 34 more)] === [2023-08-27 14:59:48,705 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 14:59:48,706 INFO L85 PathProgramCache]: Analyzing trace with hash 643606, now seen corresponding path program 1 times [2023-08-27 14:59:48,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 14:59:48,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004695166] [2023-08-27 14:59:48,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 14:59:48,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 14:59:48,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 14:59:48,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 14:59:48,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 14:59:48,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004695166] [2023-08-27 14:59:48,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1004695166] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 14:59:48,932 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 14:59:48,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 14:59:48,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899201527] [2023-08-27 14:59:48,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 14:59:48,942 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 14:59:48,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 14:59:48,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 14:59:48,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 14:59:48,974 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 258 [2023-08-27 14:59:48,979 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 41 transitions, 106 flow. Second operand has 3 states, 3 states have (on average 108.0) internal successors, (324), 3 states have internal predecessors, (324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 14:59:48,979 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 14:59:48,979 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 258 [2023-08-27 14:59:48,980 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 14:59:50,471 INFO L124 PetriNetUnfolderBase]: 14581/19046 cut-off events. [2023-08-27 14:59:50,472 INFO L125 PetriNetUnfolderBase]: For 928/928 co-relation queries the response was YES. [2023-08-27 14:59:50,506 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39192 conditions, 19046 events. 14581/19046 cut-off events. For 928/928 co-relation queries the response was YES. Maximal size of possible extension queue 1345. Compared 97779 event pairs, 4697 based on Foata normal form. 0/6038 useless extension candidates. Maximal degree in co-relation 33200. Up to 11519 conditions per place. [2023-08-27 14:59:50,610 INFO L140 encePairwiseOnDemand]: 252/258 looper letters, 72 selfloop transitions, 2 changer transitions 0/74 dead transitions. [2023-08-27 14:59:50,610 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 74 transitions, 341 flow [2023-08-27 14:59:50,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 14:59:50,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 14:59:50,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 401 transitions. [2023-08-27 14:59:50,622 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5180878552971576 [2023-08-27 14:59:50,623 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 401 transitions. [2023-08-27 14:59:50,623 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 401 transitions. [2023-08-27 14:59:50,624 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 14:59:50,626 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 401 transitions. [2023-08-27 14:59:50,630 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 133.66666666666666) internal successors, (401), 3 states have internal predecessors, (401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 14:59:50,633 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 258.0) internal successors, (1032), 4 states have internal predecessors, (1032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 14:59:50,634 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 258.0) internal successors, (1032), 4 states have internal predecessors, (1032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 14:59:50,636 INFO L175 Difference]: Start difference. First operand has 50 places, 41 transitions, 106 flow. Second operand 3 states and 401 transitions. [2023-08-27 14:59:50,636 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 74 transitions, 341 flow [2023-08-27 14:59:50,656 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 74 transitions, 311 flow, removed 0 selfloop flow, removed 8 redundant places. [2023-08-27 14:59:50,658 INFO L231 Difference]: Finished difference. Result has 43 places, 40 transitions, 100 flow [2023-08-27 14:59:50,659 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=258, PETRI_DIFFERENCE_MINUEND_FLOW=86, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=100, PETRI_PLACES=43, PETRI_TRANSITIONS=40} [2023-08-27 14:59:50,662 INFO L281 CegarLoopForPetriNet]: 50 programPoint places, -7 predicate places. [2023-08-27 14:59:50,663 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 40 transitions, 100 flow [2023-08-27 14:59:50,663 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 108.0) internal successors, (324), 3 states have internal predecessors, (324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 14:59:50,663 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 14:59:50,663 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-27 14:59:50,663 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-27 14:59:50,664 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 34 more)] === [2023-08-27 14:59:50,664 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 14:59:50,664 INFO L85 PathProgramCache]: Analyzing trace with hash 643603, now seen corresponding path program 1 times [2023-08-27 14:59:50,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 14:59:50,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598261161] [2023-08-27 14:59:50,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 14:59:50,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 14:59:50,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 14:59:50,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 14:59:50,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 14:59:50,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1598261161] [2023-08-27 14:59:50,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1598261161] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 14:59:50,724 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 14:59:50,724 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 14:59:50,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171580006] [2023-08-27 14:59:50,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 14:59:50,725 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 14:59:50,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 14:59:50,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 14:59:50,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 14:59:50,726 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 258 [2023-08-27 14:59:50,727 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 40 transitions, 100 flow. Second operand has 3 states, 3 states have (on average 109.0) internal successors, (327), 3 states have internal predecessors, (327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 14:59:50,727 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 14:59:50,727 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 258 [2023-08-27 14:59:50,727 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 14:59:51,919 INFO L124 PetriNetUnfolderBase]: 14747/19253 cut-off events. [2023-08-27 14:59:51,919 INFO L125 PetriNetUnfolderBase]: For 1060/1060 co-relation queries the response was YES. [2023-08-27 14:59:51,941 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40758 conditions, 19253 events. 14747/19253 cut-off events. For 1060/1060 co-relation queries the response was YES. Maximal size of possible extension queue 1312. Compared 95624 event pairs, 6183 based on Foata normal form. 1/6938 useless extension candidates. Maximal degree in co-relation 15567. Up to 19047 conditions per place. [2023-08-27 14:59:52,032 INFO L140 encePairwiseOnDemand]: 240/258 looper letters, 54 selfloop transitions, 5 changer transitions 3/62 dead transitions. [2023-08-27 14:59:52,032 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 62 transitions, 278 flow [2023-08-27 14:59:52,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 14:59:52,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 14:59:52,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 398 transitions. [2023-08-27 14:59:52,035 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5142118863049095 [2023-08-27 14:59:52,035 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 398 transitions. [2023-08-27 14:59:52,035 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 398 transitions. [2023-08-27 14:59:52,036 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 14:59:52,036 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 398 transitions. [2023-08-27 14:59:52,037 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 132.66666666666666) internal successors, (398), 3 states have internal predecessors, (398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 14:59:52,039 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 258.0) internal successors, (1032), 4 states have internal predecessors, (1032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 14:59:52,040 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 258.0) internal successors, (1032), 4 states have internal predecessors, (1032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 14:59:52,040 INFO L175 Difference]: Start difference. First operand has 43 places, 40 transitions, 100 flow. Second operand 3 states and 398 transitions. [2023-08-27 14:59:52,040 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 62 transitions, 278 flow [2023-08-27 14:59:52,042 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 62 transitions, 275 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 14:59:52,043 INFO L231 Difference]: Finished difference. Result has 45 places, 44 transitions, 157 flow [2023-08-27 14:59:52,043 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=258, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=157, PETRI_PLACES=45, PETRI_TRANSITIONS=44} [2023-08-27 14:59:52,044 INFO L281 CegarLoopForPetriNet]: 50 programPoint places, -5 predicate places. [2023-08-27 14:59:52,044 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 44 transitions, 157 flow [2023-08-27 14:59:52,044 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 109.0) internal successors, (327), 3 states have internal predecessors, (327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 14:59:52,045 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 14:59:52,045 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-27 14:59:52,045 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-27 14:59:52,045 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 34 more)] === [2023-08-27 14:59:52,046 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 14:59:52,046 INFO L85 PathProgramCache]: Analyzing trace with hash 19952358, now seen corresponding path program 1 times [2023-08-27 14:59:52,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 14:59:52,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [157588878] [2023-08-27 14:59:52,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 14:59:52,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 14:59:52,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 14:59:52,131 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 14:59:52,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 14:59:52,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [157588878] [2023-08-27 14:59:52,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [157588878] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-27 14:59:52,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1455364361] [2023-08-27 14:59:52,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 14:59:52,132 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-27 14:59:52,133 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-27 14:59:52,141 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-27 14:59:52,167 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-08-27 14:59:52,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 14:59:52,264 INFO L262 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 4 conjunts are in the unsatisfiable core [2023-08-27 14:59:52,267 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-27 14:59:52,303 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 14:59:52,304 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-27 14:59:52,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1455364361] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 14:59:52,307 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-27 14:59:52,308 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 3 [2023-08-27 14:59:52,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524612294] [2023-08-27 14:59:52,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 14:59:52,309 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-27 14:59:52,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 14:59:52,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-27 14:59:52,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-08-27 14:59:52,311 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 258 [2023-08-27 14:59:52,312 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 44 transitions, 157 flow. Second operand has 4 states, 4 states have (on average 108.0) internal successors, (432), 4 states have internal predecessors, (432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 14:59:52,312 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 14:59:52,312 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 258 [2023-08-27 14:59:52,312 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 14:59:53,477 INFO L124 PetriNetUnfolderBase]: 13495/17629 cut-off events. [2023-08-27 14:59:53,477 INFO L125 PetriNetUnfolderBase]: For 2118/2118 co-relation queries the response was YES. [2023-08-27 14:59:53,495 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47980 conditions, 17629 events. 13495/17629 cut-off events. For 2118/2118 co-relation queries the response was YES. Maximal size of possible extension queue 1139. Compared 84616 event pairs, 7763 based on Foata normal form. 0/9415 useless extension candidates. Maximal degree in co-relation 20652. Up to 11129 conditions per place. [2023-08-27 14:59:53,563 INFO L140 encePairwiseOnDemand]: 255/258 looper letters, 74 selfloop transitions, 3 changer transitions 0/77 dead transitions. [2023-08-27 14:59:53,564 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 77 transitions, 414 flow [2023-08-27 14:59:53,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-27 14:59:53,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-27 14:59:53,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 502 transitions. [2023-08-27 14:59:53,566 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48643410852713176 [2023-08-27 14:59:53,566 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 502 transitions. [2023-08-27 14:59:53,566 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 502 transitions. [2023-08-27 14:59:53,567 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 14:59:53,567 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 502 transitions. [2023-08-27 14:59:53,568 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 125.5) internal successors, (502), 4 states have internal predecessors, (502), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 14:59:53,571 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 258.0) internal successors, (1290), 5 states have internal predecessors, (1290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 14:59:53,571 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 258.0) internal successors, (1290), 5 states have internal predecessors, (1290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 14:59:53,572 INFO L175 Difference]: Start difference. First operand has 45 places, 44 transitions, 157 flow. Second operand 4 states and 502 transitions. [2023-08-27 14:59:53,572 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 77 transitions, 414 flow [2023-08-27 14:59:53,575 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 77 transitions, 409 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 14:59:53,576 INFO L231 Difference]: Finished difference. Result has 46 places, 43 transitions, 154 flow [2023-08-27 14:59:53,576 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=258, PETRI_DIFFERENCE_MINUEND_FLOW=148, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=154, PETRI_PLACES=46, PETRI_TRANSITIONS=43} [2023-08-27 14:59:53,577 INFO L281 CegarLoopForPetriNet]: 50 programPoint places, -4 predicate places. [2023-08-27 14:59:53,577 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 43 transitions, 154 flow [2023-08-27 14:59:53,578 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 108.0) internal successors, (432), 4 states have internal predecessors, (432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 14:59:53,578 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 14:59:53,578 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-27 14:59:53,588 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-08-27 14:59:53,784 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-27 14:59:53,784 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 34 more)] === [2023-08-27 14:59:53,784 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 14:59:53,784 INFO L85 PathProgramCache]: Analyzing trace with hash 19952359, now seen corresponding path program 1 times [2023-08-27 14:59:53,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 14:59:53,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651188345] [2023-08-27 14:59:53,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 14:59:53,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 14:59:53,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 14:59:53,875 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 14:59:53,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 14:59:53,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [651188345] [2023-08-27 14:59:53,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [651188345] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-27 14:59:53,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [787617371] [2023-08-27 14:59:53,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 14:59:53,876 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-27 14:59:53,876 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-27 14:59:53,878 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-27 14:59:53,879 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-08-27 14:59:53,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 14:59:53,946 INFO L262 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 4 conjunts are in the unsatisfiable core [2023-08-27 14:59:53,947 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-27 14:59:53,959 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 14:59:53,959 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-27 14:59:53,978 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 14:59:53,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [787617371] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-27 14:59:53,979 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-27 14:59:53,979 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 5 [2023-08-27 14:59:53,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300497851] [2023-08-27 14:59:53,980 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-27 14:59:53,980 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-27 14:59:53,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 14:59:53,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-27 14:59:53,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-08-27 14:59:53,982 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 258 [2023-08-27 14:59:53,983 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 43 transitions, 154 flow. Second operand has 7 states, 7 states have (on average 108.57142857142857) internal successors, (760), 7 states have internal predecessors, (760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 14:59:53,983 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 14:59:53,983 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 258 [2023-08-27 14:59:53,983 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 14:59:56,232 INFO L124 PetriNetUnfolderBase]: 31609/41323 cut-off events. [2023-08-27 14:59:56,232 INFO L125 PetriNetUnfolderBase]: For 4935/4935 co-relation queries the response was YES. [2023-08-27 14:59:56,273 INFO L83 FinitePrefix]: Finished finitePrefix Result has 111944 conditions, 41323 events. 31609/41323 cut-off events. For 4935/4935 co-relation queries the response was YES. Maximal size of possible extension queue 2067. Compared 227549 event pairs, 7121 based on Foata normal form. 0/22363 useless extension candidates. Maximal degree in co-relation 25840. Up to 25904 conditions per place. [2023-08-27 14:59:56,437 INFO L140 encePairwiseOnDemand]: 255/258 looper letters, 176 selfloop transitions, 6 changer transitions 0/182 dead transitions. [2023-08-27 14:59:56,438 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 182 transitions, 958 flow [2023-08-27 14:59:56,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-27 14:59:56,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-27 14:59:56,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 823 transitions. [2023-08-27 14:59:56,441 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5316537467700259 [2023-08-27 14:59:56,441 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 823 transitions. [2023-08-27 14:59:56,441 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 823 transitions. [2023-08-27 14:59:56,442 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 14:59:56,442 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 823 transitions. [2023-08-27 14:59:56,444 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 137.16666666666666) internal successors, (823), 6 states have internal predecessors, (823), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 14:59:56,447 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 258.0) internal successors, (1806), 7 states have internal predecessors, (1806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 14:59:56,448 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 258.0) internal successors, (1806), 7 states have internal predecessors, (1806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 14:59:56,448 INFO L175 Difference]: Start difference. First operand has 46 places, 43 transitions, 154 flow. Second operand 6 states and 823 transitions. [2023-08-27 14:59:56,448 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 182 transitions, 958 flow [2023-08-27 14:59:56,450 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 182 transitions, 954 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-27 14:59:56,453 INFO L231 Difference]: Finished difference. Result has 52 places, 46 transitions, 189 flow [2023-08-27 14:59:56,453 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=258, PETRI_DIFFERENCE_MINUEND_FLOW=150, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=189, PETRI_PLACES=52, PETRI_TRANSITIONS=46} [2023-08-27 14:59:56,453 INFO L281 CegarLoopForPetriNet]: 50 programPoint places, 2 predicate places. [2023-08-27 14:59:56,454 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 46 transitions, 189 flow [2023-08-27 14:59:56,454 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 108.57142857142857) internal successors, (760), 7 states have internal predecessors, (760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 14:59:56,454 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 14:59:56,455 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-27 14:59:56,462 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-08-27 14:59:56,662 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2023-08-27 14:59:56,663 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 34 more)] === [2023-08-27 14:59:56,663 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 14:59:56,663 INFO L85 PathProgramCache]: Analyzing trace with hash 19952356, now seen corresponding path program 1 times [2023-08-27 14:59:56,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 14:59:56,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10681754] [2023-08-27 14:59:56,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 14:59:56,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 14:59:56,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 14:59:56,727 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 14:59:56,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 14:59:56,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [10681754] [2023-08-27 14:59:56,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [10681754] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 14:59:56,728 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 14:59:56,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-27 14:59:56,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148986492] [2023-08-27 14:59:56,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 14:59:56,729 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 14:59:56,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 14:59:56,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 14:59:56,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 14:59:56,730 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 258 [2023-08-27 14:59:56,731 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 46 transitions, 189 flow. Second operand has 3 states, 3 states have (on average 109.33333333333333) internal successors, (328), 3 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 14:59:56,731 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 14:59:56,731 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 258 [2023-08-27 14:59:56,731 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 14:59:58,078 INFO L124 PetriNetUnfolderBase]: 21241/27847 cut-off events. [2023-08-27 14:59:58,078 INFO L125 PetriNetUnfolderBase]: For 14284/14284 co-relation queries the response was YES. [2023-08-27 14:59:58,103 INFO L83 FinitePrefix]: Finished finitePrefix Result has 78283 conditions, 27847 events. 21241/27847 cut-off events. For 14284/14284 co-relation queries the response was YES. Maximal size of possible extension queue 1301. Compared 137824 event pairs, 16543 based on Foata normal form. 0/16957 useless extension candidates. Maximal degree in co-relation 62741. Up to 27847 conditions per place. [2023-08-27 14:59:58,179 INFO L140 encePairwiseOnDemand]: 255/258 looper letters, 43 selfloop transitions, 1 changer transitions 0/44 dead transitions. [2023-08-27 14:59:58,179 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 44 transitions, 269 flow [2023-08-27 14:59:58,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 14:59:58,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 14:59:58,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 362 transitions. [2023-08-27 14:59:58,181 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46770025839793283 [2023-08-27 14:59:58,181 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 362 transitions. [2023-08-27 14:59:58,181 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 362 transitions. [2023-08-27 14:59:58,181 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 14:59:58,181 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 362 transitions. [2023-08-27 14:59:58,182 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 120.66666666666667) internal successors, (362), 3 states have internal predecessors, (362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 14:59:58,184 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 258.0) internal successors, (1032), 4 states have internal predecessors, (1032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 14:59:58,184 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 258.0) internal successors, (1032), 4 states have internal predecessors, (1032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 14:59:58,184 INFO L175 Difference]: Start difference. First operand has 52 places, 46 transitions, 189 flow. Second operand 3 states and 362 transitions. [2023-08-27 14:59:58,184 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 44 transitions, 269 flow [2023-08-27 14:59:58,189 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 44 transitions, 260 flow, removed 3 selfloop flow, removed 1 redundant places. [2023-08-27 14:59:58,190 INFO L231 Difference]: Finished difference. Result has 51 places, 44 transitions, 174 flow [2023-08-27 14:59:58,190 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=258, PETRI_DIFFERENCE_MINUEND_FLOW=172, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=174, PETRI_PLACES=51, PETRI_TRANSITIONS=44} [2023-08-27 14:59:58,190 INFO L281 CegarLoopForPetriNet]: 50 programPoint places, 1 predicate places. [2023-08-27 14:59:58,191 INFO L495 AbstractCegarLoop]: Abstraction has has 51 places, 44 transitions, 174 flow [2023-08-27 14:59:58,191 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 109.33333333333333) internal successors, (328), 3 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 14:59:58,191 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 14:59:58,191 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-27 14:59:58,191 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-27 14:59:58,191 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 34 more)] === [2023-08-27 14:59:58,192 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 14:59:58,192 INFO L85 PathProgramCache]: Analyzing trace with hash 19952357, now seen corresponding path program 1 times [2023-08-27 14:59:58,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 14:59:58,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416669420] [2023-08-27 14:59:58,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 14:59:58,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 14:59:58,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 14:59:58,266 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 14:59:58,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 14:59:58,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [416669420] [2023-08-27 14:59:58,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [416669420] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-27 14:59:58,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1294777703] [2023-08-27 14:59:58,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 14:59:58,269 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-27 14:59:58,269 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-27 14:59:58,273 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-27 14:59:58,283 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-08-27 14:59:58,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 14:59:58,343 INFO L262 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 4 conjunts are in the unsatisfiable core [2023-08-27 14:59:58,343 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-27 14:59:58,353 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 14:59:58,359 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-27 14:59:58,376 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 14:59:58,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1294777703] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-27 14:59:58,377 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-27 14:59:58,377 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 5 [2023-08-27 14:59:58,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191361701] [2023-08-27 14:59:58,377 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-27 14:59:58,378 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-27 14:59:58,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 14:59:58,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-27 14:59:58,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-08-27 14:59:58,381 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 258 [2023-08-27 14:59:58,382 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 44 transitions, 174 flow. Second operand has 7 states, 7 states have (on average 109.57142857142857) internal successors, (767), 7 states have internal predecessors, (767), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 14:59:58,382 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 14:59:58,382 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 258 [2023-08-27 14:59:58,382 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 15:00:02,203 INFO L124 PetriNetUnfolderBase]: 51043/68220 cut-off events. [2023-08-27 15:00:02,203 INFO L125 PetriNetUnfolderBase]: For 24808/24808 co-relation queries the response was YES. [2023-08-27 15:00:02,296 INFO L83 FinitePrefix]: Finished finitePrefix Result has 187545 conditions, 68220 events. 51043/68220 cut-off events. For 24808/24808 co-relation queries the response was YES. Maximal size of possible extension queue 2971. Compared 414760 event pairs, 7649 based on Foata normal form. 4491/49699 useless extension candidates. Maximal degree in co-relation 187531. Up to 35227 conditions per place. [2023-08-27 15:00:02,521 INFO L140 encePairwiseOnDemand]: 241/258 looper letters, 119 selfloop transitions, 53 changer transitions 1/173 dead transitions. [2023-08-27 15:00:02,521 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 173 transitions, 992 flow [2023-08-27 15:00:02,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-27 15:00:02,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-27 15:00:02,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 820 transitions. [2023-08-27 15:00:02,524 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5297157622739018 [2023-08-27 15:00:02,524 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 820 transitions. [2023-08-27 15:00:02,525 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 820 transitions. [2023-08-27 15:00:02,525 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 15:00:02,525 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 820 transitions. [2023-08-27 15:00:02,527 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 136.66666666666666) internal successors, (820), 6 states have internal predecessors, (820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 15:00:02,530 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 258.0) internal successors, (1806), 7 states have internal predecessors, (1806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 15:00:02,530 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 258.0) internal successors, (1806), 7 states have internal predecessors, (1806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 15:00:02,531 INFO L175 Difference]: Start difference. First operand has 51 places, 44 transitions, 174 flow. Second operand 6 states and 820 transitions. [2023-08-27 15:00:02,531 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 173 transitions, 992 flow [2023-08-27 15:00:02,573 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 173 transitions, 991 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 15:00:02,575 INFO L231 Difference]: Finished difference. Result has 59 places, 92 transitions, 727 flow [2023-08-27 15:00:02,575 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=258, PETRI_DIFFERENCE_MINUEND_FLOW=173, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=727, PETRI_PLACES=59, PETRI_TRANSITIONS=92} [2023-08-27 15:00:02,576 INFO L281 CegarLoopForPetriNet]: 50 programPoint places, 9 predicate places. [2023-08-27 15:00:02,576 INFO L495 AbstractCegarLoop]: Abstraction has has 59 places, 92 transitions, 727 flow [2023-08-27 15:00:02,577 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 109.57142857142857) internal successors, (767), 7 states have internal predecessors, (767), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 15:00:02,577 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 15:00:02,577 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-27 15:00:02,584 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-08-27 15:00:02,782 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-27 15:00:02,782 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 34 more)] === [2023-08-27 15:00:02,783 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 15:00:02,783 INFO L85 PathProgramCache]: Analyzing trace with hash 1996355444, now seen corresponding path program 1 times [2023-08-27 15:00:02,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 15:00:02,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111870139] [2023-08-27 15:00:02,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 15:00:02,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 15:00:02,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 15:00:02,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 15:00:02,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 15:00:02,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2111870139] [2023-08-27 15:00:02,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2111870139] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 15:00:02,837 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 15:00:02,837 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 15:00:02,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956762376] [2023-08-27 15:00:02,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 15:00:02,838 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 15:00:02,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 15:00:02,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 15:00:02,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 15:00:02,839 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 258 [2023-08-27 15:00:02,839 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 92 transitions, 727 flow. Second operand has 3 states, 3 states have (on average 109.0) internal successors, (327), 3 states have internal predecessors, (327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 15:00:02,839 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 15:00:02,840 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 258 [2023-08-27 15:00:02,840 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 15:00:09,371 INFO L124 PetriNetUnfolderBase]: 78213/104525 cut-off events. [2023-08-27 15:00:09,371 INFO L125 PetriNetUnfolderBase]: For 128624/128624 co-relation queries the response was YES. [2023-08-27 15:00:09,578 INFO L83 FinitePrefix]: Finished finitePrefix Result has 429354 conditions, 104525 events. 78213/104525 cut-off events. For 128624/128624 co-relation queries the response was YES. Maximal size of possible extension queue 4500. Compared 665616 event pairs, 20641 based on Foata normal form. 0/77829 useless extension candidates. Maximal degree in co-relation 429335. Up to 70658 conditions per place. [2023-08-27 15:00:09,969 INFO L140 encePairwiseOnDemand]: 254/258 looper letters, 166 selfloop transitions, 4 changer transitions 0/170 dead transitions. [2023-08-27 15:00:09,969 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 170 transitions, 1686 flow [2023-08-27 15:00:09,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 15:00:09,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 15:00:09,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 389 transitions. [2023-08-27 15:00:09,970 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5025839793281653 [2023-08-27 15:00:09,970 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 389 transitions. [2023-08-27 15:00:09,971 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 389 transitions. [2023-08-27 15:00:09,971 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 15:00:09,971 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 389 transitions. [2023-08-27 15:00:09,972 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 129.66666666666666) internal successors, (389), 3 states have internal predecessors, (389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 15:00:09,973 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 258.0) internal successors, (1032), 4 states have internal predecessors, (1032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 15:00:09,973 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 258.0) internal successors, (1032), 4 states have internal predecessors, (1032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 15:00:09,973 INFO L175 Difference]: Start difference. First operand has 59 places, 92 transitions, 727 flow. Second operand 3 states and 389 transitions. [2023-08-27 15:00:09,973 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 170 transitions, 1686 flow [2023-08-27 15:00:11,319 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 170 transitions, 1686 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-27 15:00:11,321 INFO L231 Difference]: Finished difference. Result has 62 places, 95 transitions, 783 flow [2023-08-27 15:00:11,322 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=258, PETRI_DIFFERENCE_MINUEND_FLOW=727, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=783, PETRI_PLACES=62, PETRI_TRANSITIONS=95} [2023-08-27 15:00:11,322 INFO L281 CegarLoopForPetriNet]: 50 programPoint places, 12 predicate places. [2023-08-27 15:00:11,322 INFO L495 AbstractCegarLoop]: Abstraction has has 62 places, 95 transitions, 783 flow [2023-08-27 15:00:11,323 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 109.0) internal successors, (327), 3 states have internal predecessors, (327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 15:00:11,323 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 15:00:11,323 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1] [2023-08-27 15:00:11,323 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-27 15:00:11,323 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 34 more)] === [2023-08-27 15:00:11,323 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 15:00:11,323 INFO L85 PathProgramCache]: Analyzing trace with hash 1695809110, now seen corresponding path program 2 times [2023-08-27 15:00:11,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 15:00:11,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1236549349] [2023-08-27 15:00:11,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 15:00:11,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 15:00:11,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 15:00:11,390 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 15:00:11,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 15:00:11,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1236549349] [2023-08-27 15:00:11,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1236549349] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-27 15:00:11,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1034160134] [2023-08-27 15:00:11,390 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-27 15:00:11,390 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-27 15:00:11,391 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-27 15:00:11,392 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-27 15:00:11,427 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-08-27 15:00:11,473 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-08-27 15:00:11,474 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-27 15:00:11,475 INFO L262 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 9 conjunts are in the unsatisfiable core [2023-08-27 15:00:11,476 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-27 15:00:11,514 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-08-27 15:00:11,514 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-27 15:00:11,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1034160134] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 15:00:11,517 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-27 15:00:11,517 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [5] total 6 [2023-08-27 15:00:11,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965948020] [2023-08-27 15:00:11,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 15:00:11,518 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 15:00:11,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 15:00:11,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 15:00:11,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2023-08-27 15:00:11,519 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 258 [2023-08-27 15:00:11,520 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 95 transitions, 783 flow. Second operand has 3 states, 3 states have (on average 106.33333333333333) internal successors, (319), 3 states have internal predecessors, (319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 15:00:11,520 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 15:00:11,520 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 258 [2023-08-27 15:00:11,520 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 15:00:17,764 INFO L124 PetriNetUnfolderBase]: 73705/98591 cut-off events. [2023-08-27 15:00:17,764 INFO L125 PetriNetUnfolderBase]: For 175023/175023 co-relation queries the response was YES. [2023-08-27 15:00:17,958 INFO L83 FinitePrefix]: Finished finitePrefix Result has 414298 conditions, 98591 events. 73705/98591 cut-off events. For 175023/175023 co-relation queries the response was YES. Maximal size of possible extension queue 4311. Compared 610292 event pairs, 47991 based on Foata normal form. 1426/74785 useless extension candidates. Maximal degree in co-relation 414276. Up to 98591 conditions per place. [2023-08-27 15:00:18,304 INFO L140 encePairwiseOnDemand]: 256/258 looper letters, 89 selfloop transitions, 1 changer transitions 0/90 dead transitions. [2023-08-27 15:00:18,304 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 90 transitions, 896 flow [2023-08-27 15:00:18,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 15:00:18,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 15:00:18,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 351 transitions. [2023-08-27 15:00:18,306 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45348837209302323 [2023-08-27 15:00:18,306 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 351 transitions. [2023-08-27 15:00:18,306 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 351 transitions. [2023-08-27 15:00:18,306 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 15:00:18,306 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 351 transitions. [2023-08-27 15:00:18,307 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 117.0) internal successors, (351), 3 states have internal predecessors, (351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 15:00:18,308 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 258.0) internal successors, (1032), 4 states have internal predecessors, (1032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 15:00:18,308 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 258.0) internal successors, (1032), 4 states have internal predecessors, (1032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 15:00:18,309 INFO L175 Difference]: Start difference. First operand has 62 places, 95 transitions, 783 flow. Second operand 3 states and 351 transitions. [2023-08-27 15:00:18,309 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 90 transitions, 896 flow [2023-08-27 15:00:19,005 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 90 transitions, 844 flow, removed 5 selfloop flow, removed 5 redundant places. [2023-08-27 15:00:19,007 INFO L231 Difference]: Finished difference. Result has 58 places, 90 transitions, 666 flow [2023-08-27 15:00:19,007 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=258, PETRI_DIFFERENCE_MINUEND_FLOW=664, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=666, PETRI_PLACES=58, PETRI_TRANSITIONS=90} [2023-08-27 15:00:19,007 INFO L281 CegarLoopForPetriNet]: 50 programPoint places, 8 predicate places. [2023-08-27 15:00:19,007 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 90 transitions, 666 flow [2023-08-27 15:00:19,008 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 106.33333333333333) internal successors, (319), 3 states have internal predecessors, (319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 15:00:19,008 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 15:00:19,008 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1] [2023-08-27 15:00:19,012 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-08-27 15:00:19,208 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-27 15:00:19,213 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 34 more)] === [2023-08-27 15:00:19,213 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 15:00:19,213 INFO L85 PathProgramCache]: Analyzing trace with hash 1695809108, now seen corresponding path program 2 times [2023-08-27 15:00:19,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 15:00:19,213 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825925421] [2023-08-27 15:00:19,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 15:00:19,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 15:00:19,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 15:00:19,429 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 15:00:19,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 15:00:19,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825925421] [2023-08-27 15:00:19,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1825925421] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-27 15:00:19,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2030522869] [2023-08-27 15:00:19,429 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-27 15:00:19,430 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-27 15:00:19,430 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-27 15:00:19,433 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-27 15:00:19,435 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-08-27 15:00:19,508 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-08-27 15:00:19,508 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-27 15:00:19,509 INFO L262 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 7 conjunts are in the unsatisfiable core [2023-08-27 15:00:19,510 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-27 15:00:19,525 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 15:00:19,525 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-27 15:00:19,573 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 15:00:19,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2030522869] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-27 15:00:19,573 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-27 15:00:19,573 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2023-08-27 15:00:19,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060300834] [2023-08-27 15:00:19,574 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-27 15:00:19,574 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-27 15:00:19,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 15:00:19,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-27 15:00:19,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2023-08-27 15:00:19,576 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 258 [2023-08-27 15:00:19,578 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 90 transitions, 666 flow. Second operand has 13 states, 13 states have (on average 109.3076923076923) internal successors, (1421), 13 states have internal predecessors, (1421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 15:00:19,578 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 15:00:19,578 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 258 [2023-08-27 15:00:19,578 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 15:00:38,148 INFO L124 PetriNetUnfolderBase]: 225857/302683 cut-off events. [2023-08-27 15:00:38,149 INFO L125 PetriNetUnfolderBase]: For 727180/727180 co-relation queries the response was YES. [2023-08-27 15:00:38,663 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1186997 conditions, 302683 events. 225857/302683 cut-off events. For 727180/727180 co-relation queries the response was YES. Maximal size of possible extension queue 9602. Compared 2109855 event pairs, 21031 based on Foata normal form. 43720/262819 useless extension candidates. Maximal degree in co-relation 1186978. Up to 147597 conditions per place. [2023-08-27 15:00:39,843 INFO L140 encePairwiseOnDemand]: 242/258 looper letters, 234 selfloop transitions, 233 changer transitions 1/468 dead transitions. [2023-08-27 15:00:39,844 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 468 transitions, 3678 flow [2023-08-27 15:00:39,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-27 15:00:39,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-27 15:00:39,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1661 transitions. [2023-08-27 15:00:39,847 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.536498708010336 [2023-08-27 15:00:39,848 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1661 transitions. [2023-08-27 15:00:39,848 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1661 transitions. [2023-08-27 15:00:39,848 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 15:00:39,848 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1661 transitions. [2023-08-27 15:00:39,851 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 138.41666666666666) internal successors, (1661), 12 states have internal predecessors, (1661), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 15:00:39,855 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 258.0) internal successors, (3354), 13 states have internal predecessors, (3354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 15:00:39,856 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 258.0) internal successors, (3354), 13 states have internal predecessors, (3354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 15:00:39,856 INFO L175 Difference]: Start difference. First operand has 58 places, 90 transitions, 666 flow. Second operand 12 states and 1661 transitions. [2023-08-27 15:00:39,856 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 468 transitions, 3678 flow [2023-08-27 15:00:41,176 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 468 transitions, 3677 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 15:00:41,181 INFO L231 Difference]: Finished difference. Result has 78 places, 279 transitions, 3306 flow [2023-08-27 15:00:41,181 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=258, PETRI_DIFFERENCE_MINUEND_FLOW=665, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=66, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=3306, PETRI_PLACES=78, PETRI_TRANSITIONS=279} [2023-08-27 15:00:41,182 INFO L281 CegarLoopForPetriNet]: 50 programPoint places, 28 predicate places. [2023-08-27 15:00:41,182 INFO L495 AbstractCegarLoop]: Abstraction has has 78 places, 279 transitions, 3306 flow [2023-08-27 15:00:41,183 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 109.3076923076923) internal successors, (1421), 13 states have internal predecessors, (1421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 15:00:41,183 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 15:00:41,183 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-27 15:00:41,188 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-08-27 15:00:41,387 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-27 15:00:41,387 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 34 more)] === [2023-08-27 15:00:41,388 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 15:00:41,388 INFO L85 PathProgramCache]: Analyzing trace with hash 1757535646, now seen corresponding path program 1 times [2023-08-27 15:00:41,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 15:00:41,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164103035] [2023-08-27 15:00:41,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 15:00:41,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 15:00:41,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 15:00:41,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 15:00:41,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 15:00:41,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [164103035] [2023-08-27 15:00:41,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [164103035] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 15:00:41,440 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 15:00:41,441 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 15:00:41,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047086355] [2023-08-27 15:00:41,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 15:00:41,441 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 15:00:41,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 15:00:41,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 15:00:41,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 15:00:41,442 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 258 [2023-08-27 15:00:41,442 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 279 transitions, 3306 flow. Second operand has 3 states, 3 states have (on average 109.33333333333333) internal successors, (328), 3 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 15:00:41,442 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 15:00:41,443 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 258 [2023-08-27 15:00:41,443 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 15:01:11,164 INFO L124 PetriNetUnfolderBase]: 258373/346617 cut-off events. [2023-08-27 15:01:11,164 INFO L125 PetriNetUnfolderBase]: For 981383/981383 co-relation queries the response was YES. [2023-08-27 15:01:12,340 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1775093 conditions, 346617 events. 258373/346617 cut-off events. For 981383/981383 co-relation queries the response was YES. Maximal size of possible extension queue 10992. Compared 2467005 event pairs, 39399 based on Foata normal form. 0/256521 useless extension candidates. Maximal degree in co-relation 1775063. Up to 305391 conditions per place. [2023-08-27 15:01:13,847 INFO L140 encePairwiseOnDemand]: 254/258 looper letters, 426 selfloop transitions, 21 changer transitions 0/447 dead transitions. [2023-08-27 15:01:13,847 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 447 transitions, 6322 flow [2023-08-27 15:01:13,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 15:01:13,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 15:01:13,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 385 transitions. [2023-08-27 15:01:13,848 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4974160206718346 [2023-08-27 15:01:13,848 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 385 transitions. [2023-08-27 15:01:13,848 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 385 transitions. [2023-08-27 15:01:13,849 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 15:01:13,849 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 385 transitions. [2023-08-27 15:01:13,849 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 128.33333333333334) internal successors, (385), 3 states have internal predecessors, (385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 15:01:13,850 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 258.0) internal successors, (1032), 4 states have internal predecessors, (1032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 15:01:13,850 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 258.0) internal successors, (1032), 4 states have internal predecessors, (1032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 15:01:13,850 INFO L175 Difference]: Start difference. First operand has 78 places, 279 transitions, 3306 flow. Second operand 3 states and 385 transitions. [2023-08-27 15:01:13,851 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 447 transitions, 6322 flow [2023-08-27 15:02:03,693 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 447 transitions, 5790 flow, removed 266 selfloop flow, removed 0 redundant places. [2023-08-27 15:02:03,698 INFO L231 Difference]: Finished difference. Result has 81 places, 296 transitions, 3337 flow [2023-08-27 15:02:03,699 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=258, PETRI_DIFFERENCE_MINUEND_FLOW=2974, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=277, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=256, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=3337, PETRI_PLACES=81, PETRI_TRANSITIONS=296} [2023-08-27 15:02:03,699 INFO L281 CegarLoopForPetriNet]: 50 programPoint places, 31 predicate places. [2023-08-27 15:02:03,699 INFO L495 AbstractCegarLoop]: Abstraction has has 81 places, 296 transitions, 3337 flow [2023-08-27 15:02:03,700 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 109.33333333333333) internal successors, (328), 3 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 15:02:03,700 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 15:02:03,700 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 1, 1, 1, 1, 1, 1] [2023-08-27 15:02:03,700 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-27 15:02:03,700 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 34 more)] === [2023-08-27 15:02:03,700 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 15:02:03,700 INFO L85 PathProgramCache]: Analyzing trace with hash -469326137, now seen corresponding path program 1 times [2023-08-27 15:02:03,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 15:02:03,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [9986185] [2023-08-27 15:02:03,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 15:02:03,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 15:02:03,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 15:02:03,746 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-27 15:02:03,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 15:02:03,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [9986185] [2023-08-27 15:02:03,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [9986185] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-27 15:02:03,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1514697965] [2023-08-27 15:02:03,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 15:02:03,747 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-27 15:02:03,747 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-27 15:02:03,753 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-27 15:02:03,755 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-08-27 15:02:03,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 15:02:03,829 INFO L262 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 4 conjunts are in the unsatisfiable core [2023-08-27 15:02:03,830 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-27 15:02:03,843 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-27 15:02:03,843 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-27 15:02:03,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1514697965] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 15:02:03,843 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-27 15:02:03,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 3 [2023-08-27 15:02:03,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964125101] [2023-08-27 15:02:03,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 15:02:03,844 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-27 15:02:03,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 15:02:03,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-27 15:02:03,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-08-27 15:02:03,845 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 258 [2023-08-27 15:02:03,845 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 296 transitions, 3337 flow. Second operand has 4 states, 4 states have (on average 109.0) internal successors, (436), 4 states have internal predecessors, (436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 15:02:03,845 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 15:02:03,845 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 258 [2023-08-27 15:02:03,846 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 15:02:32,580 INFO L124 PetriNetUnfolderBase]: 219605/295095 cut-off events. [2023-08-27 15:02:32,580 INFO L125 PetriNetUnfolderBase]: For 867715/867715 co-relation queries the response was YES. [2023-08-27 15:02:33,595 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1452473 conditions, 295095 events. 219605/295095 cut-off events. For 867715/867715 co-relation queries the response was YES. Maximal size of possible extension queue 9081. Compared 2062133 event pairs, 64446 based on Foata normal form. 0/225897 useless extension candidates. Maximal degree in co-relation 1452440. Up to 186885 conditions per place. [2023-08-27 15:02:34,867 INFO L140 encePairwiseOnDemand]: 255/258 looper letters, 501 selfloop transitions, 15 changer transitions 0/516 dead transitions. [2023-08-27 15:02:34,867 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 516 transitions, 6729 flow [2023-08-27 15:02:34,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-27 15:02:34,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-27 15:02:34,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 492 transitions. [2023-08-27 15:02:34,869 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47674418604651164 [2023-08-27 15:02:34,869 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 492 transitions. [2023-08-27 15:02:34,869 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 492 transitions. [2023-08-27 15:02:34,870 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 15:02:34,870 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 492 transitions. [2023-08-27 15:02:34,871 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 123.0) internal successors, (492), 4 states have internal predecessors, (492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 15:02:34,872 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 258.0) internal successors, (1290), 5 states have internal predecessors, (1290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 15:02:34,872 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 258.0) internal successors, (1290), 5 states have internal predecessors, (1290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 15:02:34,872 INFO L175 Difference]: Start difference. First operand has 81 places, 296 transitions, 3337 flow. Second operand 4 states and 492 transitions. [2023-08-27 15:02:34,872 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 516 transitions, 6729 flow [2023-08-27 15:02:52,261 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 516 transitions, 6689 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 15:02:52,265 INFO L231 Difference]: Finished difference. Result has 82 places, 282 transitions, 3162 flow [2023-08-27 15:02:52,265 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=258, PETRI_DIFFERENCE_MINUEND_FLOW=3132, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=282, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=267, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=3162, PETRI_PLACES=82, PETRI_TRANSITIONS=282} [2023-08-27 15:02:52,266 INFO L281 CegarLoopForPetriNet]: 50 programPoint places, 32 predicate places. [2023-08-27 15:02:52,266 INFO L495 AbstractCegarLoop]: Abstraction has has 82 places, 282 transitions, 3162 flow [2023-08-27 15:02:52,266 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 109.0) internal successors, (436), 4 states have internal predecessors, (436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 15:02:52,266 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 15:02:52,266 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 1, 1, 1, 1, 1, 1] [2023-08-27 15:02:52,270 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-08-27 15:02:52,466 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-27 15:02:52,467 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 34 more)] === [2023-08-27 15:02:52,467 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 15:02:52,467 INFO L85 PathProgramCache]: Analyzing trace with hash -469326136, now seen corresponding path program 1 times [2023-08-27 15:02:52,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 15:02:52,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [133612873] [2023-08-27 15:02:52,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 15:02:52,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 15:02:52,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 15:02:52,507 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-27 15:02:52,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 15:02:52,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [133612873] [2023-08-27 15:02:52,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [133612873] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-27 15:02:52,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1127725815] [2023-08-27 15:02:52,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 15:02:52,508 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-27 15:02:52,508 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-27 15:02:52,509 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-27 15:02:52,511 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-08-27 15:02:52,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 15:02:52,595 INFO L262 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 4 conjunts are in the unsatisfiable core [2023-08-27 15:02:52,596 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-27 15:02:52,615 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-27 15:02:52,615 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-27 15:02:52,641 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-27 15:02:52,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1127725815] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-27 15:02:52,641 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-27 15:02:52,641 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 5 [2023-08-27 15:02:52,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506582971] [2023-08-27 15:02:52,642 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-27 15:02:52,643 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-27 15:02:52,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 15:02:52,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-27 15:02:52,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-08-27 15:02:52,644 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 258 [2023-08-27 15:02:52,645 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 282 transitions, 3162 flow. Second operand has 7 states, 7 states have (on average 110.14285714285714) internal successors, (771), 7 states have internal predecessors, (771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 15:02:52,645 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 15:02:52,645 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 258 [2023-08-27 15:02:52,645 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 15:03:50,493 INFO L124 PetriNetUnfolderBase]: 478653/643427 cut-off events. [2023-08-27 15:03:50,494 INFO L125 PetriNetUnfolderBase]: For 2016444/2016444 co-relation queries the response was YES. [2023-08-27 15:03:52,774 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3145734 conditions, 643427 events. 478653/643427 cut-off events. For 2016444/2016444 co-relation queries the response was YES. Maximal size of possible extension queue 17798. Compared 4797201 event pairs, 97619 based on Foata normal form. 0/503469 useless extension candidates. Maximal degree in co-relation 3145700. Up to 294823 conditions per place. [2023-08-27 15:03:55,622 INFO L140 encePairwiseOnDemand]: 255/258 looper letters, 1203 selfloop transitions, 57 changer transitions 0/1260 dead transitions. [2023-08-27 15:03:55,622 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 1260 transitions, 16334 flow [2023-08-27 15:03:55,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-27 15:03:55,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-27 15:03:55,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 795 transitions. [2023-08-27 15:03:55,624 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5135658914728682 [2023-08-27 15:03:55,624 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 795 transitions. [2023-08-27 15:03:55,625 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 795 transitions. [2023-08-27 15:03:55,625 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 15:03:55,625 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 795 transitions. [2023-08-27 15:03:55,626 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 132.5) internal successors, (795), 6 states have internal predecessors, (795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 15:03:55,628 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 258.0) internal successors, (1806), 7 states have internal predecessors, (1806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 15:03:55,629 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 258.0) internal successors, (1806), 7 states have internal predecessors, (1806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 15:03:55,629 INFO L175 Difference]: Start difference. First operand has 82 places, 282 transitions, 3162 flow. Second operand 6 states and 795 transitions. [2023-08-27 15:03:55,629 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 1260 transitions, 16334 flow [2023-08-27 15:06:20,331 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 1260 transitions, 16318 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-27 15:06:20,339 INFO L231 Difference]: Finished difference. Result has 88 places, 324 transitions, 4008 flow [2023-08-27 15:06:20,339 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=258, PETRI_DIFFERENCE_MINUEND_FLOW=3146, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=282, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=253, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=4008, PETRI_PLACES=88, PETRI_TRANSITIONS=324} [2023-08-27 15:06:20,340 INFO L281 CegarLoopForPetriNet]: 50 programPoint places, 38 predicate places. [2023-08-27 15:06:20,340 INFO L495 AbstractCegarLoop]: Abstraction has has 88 places, 324 transitions, 4008 flow [2023-08-27 15:06:20,340 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 110.14285714285714) internal successors, (771), 7 states have internal predecessors, (771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 15:06:20,340 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 15:06:20,341 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 15:06:20,345 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-08-27 15:06:20,541 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-27 15:06:20,542 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 34 more)] === [2023-08-27 15:06:20,542 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 15:06:20,542 INFO L85 PathProgramCache]: Analyzing trace with hash -1350969230, now seen corresponding path program 1 times [2023-08-27 15:06:20,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 15:06:20,542 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304443204] [2023-08-27 15:06:20,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 15:06:20,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 15:06:20,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 15:06:20,588 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 15:06:20,588 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 15:06:20,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1304443204] [2023-08-27 15:06:20,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1304443204] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-27 15:06:20,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [640592542] [2023-08-27 15:06:20,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 15:06:20,589 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-27 15:06:20,589 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-27 15:06:20,590 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-27 15:06:20,592 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-08-27 15:06:20,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 15:06:20,670 INFO L262 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 4 conjunts are in the unsatisfiable core [2023-08-27 15:06:20,671 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-27 15:06:20,682 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 15:06:20,683 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-27 15:06:20,704 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 15:06:20,704 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [640592542] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-27 15:06:20,704 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-27 15:06:20,705 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 5 [2023-08-27 15:06:20,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48755082] [2023-08-27 15:06:20,705 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-27 15:06:20,705 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-27 15:06:20,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 15:06:20,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-27 15:06:20,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-08-27 15:06:20,706 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 258 [2023-08-27 15:06:20,707 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 324 transitions, 4008 flow. Second operand has 7 states, 7 states have (on average 110.28571428571429) internal successors, (772), 7 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 15:06:20,707 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 15:06:20,707 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 258 [2023-08-27 15:06:20,707 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 15:08:10,117 INFO L124 PetriNetUnfolderBase]: 771059/1026124 cut-off events. [2023-08-27 15:08:10,118 INFO L125 PetriNetUnfolderBase]: For 3547156/3547156 co-relation queries the response was YES. [2023-08-27 15:08:15,729 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5153770 conditions, 1026124 events. 771059/1026124 cut-off events. For 3547156/3547156 co-relation queries the response was YES. Maximal size of possible extension queue 27742. Compared 7803941 event pairs, 93165 based on Foata normal form. 0/821786 useless extension candidates. Maximal degree in co-relation 5153733. Up to 466228 conditions per place. [2023-08-27 15:08:21,726 INFO L140 encePairwiseOnDemand]: 254/258 looper letters, 1307 selfloop transitions, 154 changer transitions 0/1461 dead transitions. [2023-08-27 15:08:21,726 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 1461 transitions, 21793 flow [2023-08-27 15:08:21,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-27 15:08:21,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-27 15:08:21,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 912 transitions. [2023-08-27 15:08:21,751 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5049833887043189 [2023-08-27 15:08:21,751 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 912 transitions. [2023-08-27 15:08:21,751 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 912 transitions. [2023-08-27 15:08:21,752 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 15:08:21,752 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 912 transitions. [2023-08-27 15:08:21,754 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 130.28571428571428) internal successors, (912), 7 states have internal predecessors, (912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 15:08:21,756 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 258.0) internal successors, (2064), 8 states have internal predecessors, (2064), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 15:08:21,757 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 258.0) internal successors, (2064), 8 states have internal predecessors, (2064), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 15:08:21,757 INFO L175 Difference]: Start difference. First operand has 88 places, 324 transitions, 4008 flow. Second operand 7 states and 912 transitions. [2023-08-27 15:08:21,757 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 1461 transitions, 21793 flow Received shutdown request... [2023-08-27 15:10:42,786 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-08-27 15:10:42,794 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-08-27 15:10:43,797 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 [2023-08-27 15:10:43,841 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-08-27 15:10:44,562 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (36 of 37 remaining) [2023-08-27 15:10:44,563 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-27 15:10:44,563 WARN L619 AbstractCegarLoop]: Verification canceled: while executing RemoveRedundantFlow. [2023-08-27 15:10:44,564 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (35 of 37 remaining) [2023-08-27 15:10:44,564 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (34 of 37 remaining) [2023-08-27 15:10:44,565 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (33 of 37 remaining) [2023-08-27 15:10:44,565 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (32 of 37 remaining) [2023-08-27 15:10:44,565 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (31 of 37 remaining) [2023-08-27 15:10:44,571 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (30 of 37 remaining) [2023-08-27 15:10:44,571 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 37 remaining) [2023-08-27 15:10:44,571 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 37 remaining) [2023-08-27 15:10:44,572 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 37 remaining) [2023-08-27 15:10:44,572 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 37 remaining) [2023-08-27 15:10:44,572 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 37 remaining) [2023-08-27 15:10:44,572 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 37 remaining) [2023-08-27 15:10:44,572 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (23 of 37 remaining) [2023-08-27 15:10:44,572 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (22 of 37 remaining) [2023-08-27 15:10:44,572 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (21 of 37 remaining) [2023-08-27 15:10:44,572 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (20 of 37 remaining) [2023-08-27 15:10:44,572 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (19 of 37 remaining) [2023-08-27 15:10:44,572 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread4Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 37 remaining) [2023-08-27 15:10:44,573 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread4Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 37 remaining) [2023-08-27 15:10:44,573 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread4Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 37 remaining) [2023-08-27 15:10:44,573 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread4Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 37 remaining) [2023-08-27 15:10:44,573 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 37 remaining) [2023-08-27 15:10:44,573 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 37 remaining) [2023-08-27 15:10:44,573 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 37 remaining) [2023-08-27 15:10:44,573 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 37 remaining) [2023-08-27 15:10:44,574 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 37 remaining) [2023-08-27 15:10:44,574 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 37 remaining) [2023-08-27 15:10:44,574 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 37 remaining) [2023-08-27 15:10:44,574 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 37 remaining) [2023-08-27 15:10:44,574 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 37 remaining) [2023-08-27 15:10:44,574 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 37 remaining) [2023-08-27 15:10:44,574 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 37 remaining) [2023-08-27 15:10:44,574 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread4Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 37 remaining) [2023-08-27 15:10:44,575 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread4Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 37 remaining) [2023-08-27 15:10:44,575 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread4Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 37 remaining) [2023-08-27 15:10:44,575 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread4Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 37 remaining) [2023-08-27 15:10:44,575 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 15:10:44,584 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-27 15:10:44,585 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-27 15:10:44,594 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.08 03:10:44 BasicIcfg [2023-08-27 15:10:44,594 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-27 15:10:44,594 INFO L158 Benchmark]: Toolchain (without parser) took 661965.88ms. Allocated memory was 356.5MB in the beginning and 16.0GB in the end (delta: 15.6GB). Free memory was 332.8MB in the beginning and 6.9GB in the end (delta: -6.6GB). Peak memory consumption was 10.8GB. Max. memory is 16.0GB. [2023-08-27 15:10:44,595 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 356.5MB. Free memory was 332.8MB in the beginning and 332.7MB in the end (delta: 88.3kB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-27 15:10:44,596 INFO L158 Benchmark]: CACSL2BoogieTranslator took 246.53ms. Allocated memory is still 356.5MB. Free memory was 332.8MB in the beginning and 321.6MB in the end (delta: 11.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. [2023-08-27 15:10:44,613 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.78ms. Allocated memory is still 356.5MB. Free memory was 321.6MB in the beginning and 319.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-27 15:10:44,613 INFO L158 Benchmark]: Boogie Preprocessor took 44.32ms. Allocated memory is still 356.5MB. Free memory was 319.5MB in the beginning and 317.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-27 15:10:44,614 INFO L158 Benchmark]: RCFGBuilder took 618.67ms. Allocated memory is still 356.5MB. Free memory was 317.8MB in the beginning and 285.9MB in the end (delta: 31.9MB). Peak memory consumption was 31.5MB. Max. memory is 16.0GB. [2023-08-27 15:10:44,614 INFO L158 Benchmark]: TraceAbstraction took 660992.33ms. Allocated memory was 356.5MB in the beginning and 16.0GB in the end (delta: 15.6GB). Free memory was 285.3MB in the beginning and 6.9GB in the end (delta: -6.6GB). Peak memory consumption was 10.7GB. Max. memory is 16.0GB. [2023-08-27 15:10:44,615 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 356.5MB. Free memory was 332.8MB in the beginning and 332.7MB in the end (delta: 88.3kB). There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 246.53ms. Allocated memory is still 356.5MB. Free memory was 332.8MB in the beginning and 321.6MB in the end (delta: 11.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 52.78ms. Allocated memory is still 356.5MB. Free memory was 321.6MB in the beginning and 319.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 44.32ms. Allocated memory is still 356.5MB. Free memory was 319.5MB in the beginning and 317.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 618.67ms. Allocated memory is still 356.5MB. Free memory was 317.8MB in the beginning and 285.9MB in the end (delta: 31.9MB). Peak memory consumption was 31.5MB. Max. memory is 16.0GB. * TraceAbstraction took 660992.33ms. Allocated memory was 356.5MB in the beginning and 16.0GB in the end (delta: 15.6GB). Free memory was 285.3MB in the beginning and 6.9GB in the end (delta: -6.6GB). Peak memory consumption was 10.7GB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.9s, 131 PlacesBefore, 50 PlacesAfterwards, 128 TransitionsBefore, 41 TransitionsAfterwards, 2520 CoEnabledTransitionPairs, 7 FixpointIterations, 54 TrivialSequentialCompositions, 41 ConcurrentSequentialCompositions, 4 TrivialYvCompositions, 8 ConcurrentYvCompositions, 6 ChoiceCompositions, 113 TotalNumberOfCompositions, 3394 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3394, independent: 3394, independent conditional: 0, independent unconditional: 3394, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1150, independent: 1150, independent conditional: 0, independent unconditional: 1150, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3394, independent: 2244, independent conditional: 0, independent unconditional: 2244, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 1150, unknown conditional: 0, unknown unconditional: 1150] , Statistics on independence cache: Total cache size (in pairs): 174, Positive cache size: 174, Positive conditional cache size: 0, Positive unconditional cache size: 174, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - TimeoutResultAtElement [Line: 66]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 42]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 42]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 43]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 43]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 54]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 54]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 55]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 55]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 65]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 65]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 66]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 21]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 98]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 96]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 95]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 97]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 77]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 77]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 78]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 78]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while executing RemoveRedundantFlow. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 176 locations, 37 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: 660.8s, OverallIterations: 13, TraceHistogramMax: 4, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 652.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 5.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1315 SdHoareTripleChecker+Valid, 1.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1315 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 1.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 290 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1652 IncrementalHoareTripleChecker+Invalid, 1942 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 290 mSolverCounterUnsat, 0 mSDtfsCounter, 1652 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 99 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4008occurred in iteration=12, InterpolantAutomatonStates: 56, 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: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 127 NumberOfCodeBlocks, 123 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 133 ConstructedInterpolants, 0 QuantifiedInterpolants, 397 SizeOfPredicates, 5 NumberOfNonLiveVariables, 1074 ConjunctsInSsa, 40 ConjunctsInUnsatCore, 26 InterpolantComputations, 8 PerfectInterpolantSequences, 20/82 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown !ENTRY org.eclipse.osgi 4 0 2023-08-27 15:10:44.645 !MESSAGE Application error !STACK 1 org.eclipse.core.internal.resources.ResourceException(/)[568]: java.io.FileNotFoundException: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a44f6dee6/.metadata/.plugins/org.eclipse.core.resources/.root/1.tree (No such file or directory) at java.base/java.io.FileOutputStream.open0(Native Method) at java.base/java.io.FileOutputStream.open(FileOutputStream.java:298) at java.base/java.io.FileOutputStream.(FileOutputStream.java:237) at java.base/java.io.FileOutputStream.(FileOutputStream.java:187) at org.eclipse.core.internal.localstore.SafeFileOutputStream.(SafeFileOutputStream.java:55) at org.eclipse.core.internal.resources.SaveManager.saveTree(SaveManager.java:1381) at org.eclipse.core.internal.resources.SaveManager.save(SaveManager.java:1168) at org.eclipse.core.internal.resources.Workspace.save(Workspace.java:2333) at org.eclipse.core.internal.resources.Workspace.save(Workspace.java:2322) at de.uni_freiburg.informatik.ultimate.core.coreplugin.UltimateCore.start(UltimateCore.java:190) at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:203) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:134) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:104) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:401) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:255) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.base/java.lang.reflect.Method.invoke(Method.java:566) at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:657) at org.eclipse.equinox.launcher.Main.basicRun(Main.java:594) at org.eclipse.equinox.launcher.Main.run(Main.java:1465) at org.eclipse.equinox.launcher.Main.main(Main.java:1438) An error has occurred. See the log file /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a44f6dee6/.metadata/.log.