./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/pthread-theta/unwind3-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 803cd42f Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-theta/unwind3-1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ac23e7ddc6ad8a4019915da456e24c280b09a2b1564c0f5287e162f39d98d7fe --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-23 02:03:06,278 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 02:03:06,337 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-23 02:03:06,343 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 02:03:06,343 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 02:03:06,363 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 02:03:06,364 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 02:03:06,365 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 02:03:06,365 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-23 02:03:06,368 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-23 02:03:06,368 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-23 02:03:06,368 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-23 02:03:06,369 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 02:03:06,369 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 02:03:06,369 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 02:03:06,369 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 02:03:06,369 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-23 02:03:06,370 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-23 02:03:06,370 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-23 02:03:06,370 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-23 02:03:06,371 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 02:03:06,371 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-23 02:03:06,371 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-23 02:03:06,372 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-23 02:03:06,372 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-23 02:03:06,372 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-23 02:03:06,372 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-23 02:03:06,372 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-23 02:03:06,372 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-23 02:03:06,373 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 02:03:06,373 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 02:03:06,373 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 02:03:06,373 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 02:03:06,373 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 02:03:06,373 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 02:03:06,374 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 02:03:06,374 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-23 02:03:06,374 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-23 02:03:06,374 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-23 02:03:06,374 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-23 02:03:06,374 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-23 02:03:06,376 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-23 02:03:06,376 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-23 02:03:06,376 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-23 02:03:06,376 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ac23e7ddc6ad8a4019915da456e24c280b09a2b1564c0f5287e162f39d98d7fe [2024-11-23 02:03:06,593 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 02:03:06,625 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 02:03:06,627 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 02:03:06,631 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 02:03:06,631 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 02:03:06,632 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-theta/unwind3-1.i [2024-11-23 02:03:08,019 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-23 02:03:08,207 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 02:03:08,208 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-theta/unwind3-1.i [2024-11-23 02:03:08,226 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e0de59528/e406b40ce4134deeb6ddbe524327115b/FLAGee21d1250 [2024-11-23 02:03:08,587 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e0de59528/e406b40ce4134deeb6ddbe524327115b [2024-11-23 02:03:08,590 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 02:03:08,591 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 02:03:08,592 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 02:03:08,592 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 02:03:08,599 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 02:03:08,600 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:03:08" (1/1) ... [2024-11-23 02:03:08,600 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3363ad51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:03:08, skipping insertion in model container [2024-11-23 02:03:08,602 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:03:08" (1/1) ... [2024-11-23 02:03:08,631 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 02:03:08,900 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 02:03:08,909 INFO L200 MainTranslator]: Completed pre-run [2024-11-23 02:03:08,983 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 02:03:09,010 INFO L204 MainTranslator]: Completed translation [2024-11-23 02:03:09,011 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:03:09 WrapperNode [2024-11-23 02:03:09,011 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 02:03:09,011 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-23 02:03:09,012 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-23 02:03:09,012 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-23 02:03:09,023 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:03:09" (1/1) ... [2024-11-23 02:03:09,033 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:03:09" (1/1) ... [2024-11-23 02:03:09,047 INFO L138 Inliner]: procedures = 169, calls = 11, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 72 [2024-11-23 02:03:09,048 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-23 02:03:09,048 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-23 02:03:09,048 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-23 02:03:09,048 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-23 02:03:09,056 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:03:09" (1/1) ... [2024-11-23 02:03:09,056 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:03:09" (1/1) ... [2024-11-23 02:03:09,060 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:03:09" (1/1) ... [2024-11-23 02:03:09,075 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-23 02:03:09,075 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:03:09" (1/1) ... [2024-11-23 02:03:09,075 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:03:09" (1/1) ... [2024-11-23 02:03:09,078 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:03:09" (1/1) ... [2024-11-23 02:03:09,080 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:03:09" (1/1) ... [2024-11-23 02:03:09,081 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:03:09" (1/1) ... [2024-11-23 02:03:09,082 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:03:09" (1/1) ... [2024-11-23 02:03:09,084 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-23 02:03:09,084 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-23 02:03:09,084 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-23 02:03:09,084 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-23 02:03:09,086 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:03:09" (1/1) ... [2024-11-23 02:03:09,090 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 02:03:09,097 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 02:03:09,115 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-23 02:03:09,122 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-23 02:03:09,168 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-23 02:03:09,168 INFO L130 BoogieDeclarations]: Found specification of procedure f1 [2024-11-23 02:03:09,168 INFO L138 BoogieDeclarations]: Found implementation of procedure f1 [2024-11-23 02:03:09,169 INFO L130 BoogieDeclarations]: Found specification of procedure f2 [2024-11-23 02:03:09,169 INFO L138 BoogieDeclarations]: Found implementation of procedure f2 [2024-11-23 02:03:09,169 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-23 02:03:09,169 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-23 02:03:09,169 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-23 02:03:09,170 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-23 02:03:09,290 INFO L238 CfgBuilder]: Building ICFG [2024-11-23 02:03:09,292 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-23 02:03:09,420 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-23 02:03:09,420 INFO L287 CfgBuilder]: Performing block encoding [2024-11-23 02:03:09,483 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-23 02:03:09,483 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-23 02:03:09,484 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:03:09 BoogieIcfgContainer [2024-11-23 02:03:09,484 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-23 02:03:09,485 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-23 02:03:09,486 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-23 02:03:09,488 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-23 02:03:09,488 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:03:08" (1/3) ... [2024-11-23 02:03:09,488 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@793adf53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:03:09, skipping insertion in model container [2024-11-23 02:03:09,489 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:03:09" (2/3) ... [2024-11-23 02:03:09,489 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@793adf53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:03:09, skipping insertion in model container [2024-11-23 02:03:09,489 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:03:09" (3/3) ... [2024-11-23 02:03:09,490 INFO L112 eAbstractionObserver]: Analyzing ICFG unwind3-1.i [2024-11-23 02:03:09,501 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-23 02:03:09,502 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2024-11-23 02:03:09,502 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-23 02:03:09,536 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-23 02:03:09,563 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 38 places, 33 transitions, 74 flow [2024-11-23 02:03:09,583 INFO L124 PetriNetUnfolderBase]: 2/47 cut-off events. [2024-11-23 02:03:09,583 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-23 02:03:09,585 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56 conditions, 47 events. 2/47 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 135 event pairs, 0 based on Foata normal form. 0/31 useless extension candidates. Maximal degree in co-relation 29. Up to 4 conditions per place. [2024-11-23 02:03:09,585 INFO L82 GeneralOperation]: Start removeDead. Operand has 38 places, 33 transitions, 74 flow [2024-11-23 02:03:09,587 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 37 places, 32 transitions, 71 flow [2024-11-23 02:03:09,593 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-23 02:03:09,599 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@63b09c1d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 02:03:09,600 INFO L334 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2024-11-23 02:03:09,605 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-23 02:03:09,605 INFO L124 PetriNetUnfolderBase]: 0/11 cut-off events. [2024-11-23 02:03:09,605 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-23 02:03:09,606 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-23 02:03:09,606 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-23 02:03:09,607 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting f1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 13 more)] === [2024-11-23 02:03:09,610 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 02:03:09,610 INFO L85 PathProgramCache]: Analyzing trace with hash 998420578, now seen corresponding path program 1 times [2024-11-23 02:03:09,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 02:03:09,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [79788067] [2024-11-23 02:03:09,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 02:03:09,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 02:03:09,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 02:03:09,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 02:03:09,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 02:03:09,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [79788067] [2024-11-23 02:03:09,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [79788067] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 02:03:09,810 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 02:03:09,810 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 02:03:09,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664790989] [2024-11-23 02:03:09,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 02:03:09,818 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 02:03:09,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 02:03:09,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 02:03:09,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 02:03:09,860 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 33 [2024-11-23 02:03:09,862 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 32 transitions, 71 flow. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 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) [2024-11-23 02:03:09,863 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 02:03:09,863 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 33 [2024-11-23 02:03:09,864 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 02:03:09,972 INFO L124 PetriNetUnfolderBase]: 106/260 cut-off events. [2024-11-23 02:03:09,973 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-23 02:03:09,975 INFO L83 FinitePrefix]: Finished finitePrefix Result has 485 conditions, 260 events. 106/260 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1134 event pairs, 13 based on Foata normal form. 29/254 useless extension candidates. Maximal degree in co-relation 419. Up to 160 conditions per place. [2024-11-23 02:03:09,979 INFO L140 encePairwiseOnDemand]: 28/33 looper letters, 28 selfloop transitions, 3 changer transitions 0/42 dead transitions. [2024-11-23 02:03:09,980 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 42 transitions, 156 flow [2024-11-23 02:03:09,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 02:03:09,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-23 02:03:09,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 94 transitions. [2024-11-23 02:03:09,991 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5696969696969697 [2024-11-23 02:03:09,993 INFO L175 Difference]: Start difference. First operand has 37 places, 32 transitions, 71 flow. Second operand 5 states and 94 transitions. [2024-11-23 02:03:09,993 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 42 transitions, 156 flow [2024-11-23 02:03:09,995 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 42 transitions, 154 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-23 02:03:09,997 INFO L231 Difference]: Finished difference. Result has 38 places, 30 transitions, 72 flow [2024-11-23 02:03:09,998 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=72, PETRI_PLACES=38, PETRI_TRANSITIONS=30} [2024-11-23 02:03:10,001 INFO L277 CegarLoopForPetriNet]: 37 programPoint places, 1 predicate places. [2024-11-23 02:03:10,002 INFO L471 AbstractCegarLoop]: Abstraction has has 38 places, 30 transitions, 72 flow [2024-11-23 02:03:10,002 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 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) [2024-11-23 02:03:10,002 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-23 02:03:10,003 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-23 02:03:10,003 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-23 02:03:10,003 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 13 more)] === [2024-11-23 02:03:10,004 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 02:03:10,004 INFO L85 PathProgramCache]: Analyzing trace with hash 998420381, now seen corresponding path program 1 times [2024-11-23 02:03:10,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 02:03:10,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894523630] [2024-11-23 02:03:10,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 02:03:10,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 02:03:10,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 02:03:10,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 02:03:10,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 02:03:10,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [894523630] [2024-11-23 02:03:10,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [894523630] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 02:03:10,054 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 02:03:10,054 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-23 02:03:10,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139833160] [2024-11-23 02:03:10,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 02:03:10,055 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 02:03:10,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 02:03:10,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 02:03:10,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 02:03:10,061 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 33 [2024-11-23 02:03:10,061 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 30 transitions, 72 flow. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 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) [2024-11-23 02:03:10,061 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 02:03:10,061 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 33 [2024-11-23 02:03:10,061 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 02:03:10,101 INFO L124 PetriNetUnfolderBase]: 52/151 cut-off events. [2024-11-23 02:03:10,101 INFO L125 PetriNetUnfolderBase]: For 14/14 co-relation queries the response was YES. [2024-11-23 02:03:10,102 INFO L83 FinitePrefix]: Finished finitePrefix Result has 293 conditions, 151 events. 52/151 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 619 event pairs, 30 based on Foata normal form. 3/134 useless extension candidates. Maximal degree in co-relation 228. Up to 102 conditions per place. [2024-11-23 02:03:10,103 INFO L140 encePairwiseOnDemand]: 28/33 looper letters, 17 selfloop transitions, 3 changer transitions 0/32 dead transitions. [2024-11-23 02:03:10,103 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 32 transitions, 118 flow [2024-11-23 02:03:10,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 02:03:10,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-23 02:03:10,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 67 transitions. [2024-11-23 02:03:10,104 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6767676767676768 [2024-11-23 02:03:10,104 INFO L175 Difference]: Start difference. First operand has 38 places, 30 transitions, 72 flow. Second operand 3 states and 67 transitions. [2024-11-23 02:03:10,104 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 32 transitions, 118 flow [2024-11-23 02:03:10,105 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 32 transitions, 112 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-23 02:03:10,106 INFO L231 Difference]: Finished difference. Result has 36 places, 29 transitions, 76 flow [2024-11-23 02:03:10,106 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=63, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=76, PETRI_PLACES=36, PETRI_TRANSITIONS=29} [2024-11-23 02:03:10,107 INFO L277 CegarLoopForPetriNet]: 37 programPoint places, -1 predicate places. [2024-11-23 02:03:10,107 INFO L471 AbstractCegarLoop]: Abstraction has has 36 places, 29 transitions, 76 flow [2024-11-23 02:03:10,107 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 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) [2024-11-23 02:03:10,107 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-23 02:03:10,107 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 02:03:10,107 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-23 02:03:10,107 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting f1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 13 more)] === [2024-11-23 02:03:10,108 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 02:03:10,108 INFO L85 PathProgramCache]: Analyzing trace with hash 886267104, now seen corresponding path program 1 times [2024-11-23 02:03:10,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 02:03:10,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [200901241] [2024-11-23 02:03:10,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 02:03:10,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 02:03:10,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 02:03:10,163 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 02:03:10,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 02:03:10,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [200901241] [2024-11-23 02:03:10,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [200901241] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 02:03:10,179 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 02:03:10,179 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 02:03:10,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978155886] [2024-11-23 02:03:10,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 02:03:10,180 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 02:03:10,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 02:03:10,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 02:03:10,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 02:03:10,204 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 33 [2024-11-23 02:03:10,204 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 29 transitions, 76 flow. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 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) [2024-11-23 02:03:10,205 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 02:03:10,205 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 33 [2024-11-23 02:03:10,205 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 02:03:10,287 INFO L124 PetriNetUnfolderBase]: 72/195 cut-off events. [2024-11-23 02:03:10,288 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2024-11-23 02:03:10,288 INFO L83 FinitePrefix]: Finished finitePrefix Result has 388 conditions, 195 events. 72/195 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 785 event pairs, 8 based on Foata normal form. 15/196 useless extension candidates. Maximal degree in co-relation 324. Up to 70 conditions per place. [2024-11-23 02:03:10,289 INFO L140 encePairwiseOnDemand]: 28/33 looper letters, 31 selfloop transitions, 3 changer transitions 7/49 dead transitions. [2024-11-23 02:03:10,289 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 49 transitions, 210 flow [2024-11-23 02:03:10,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 02:03:10,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-23 02:03:10,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 103 transitions. [2024-11-23 02:03:10,291 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6242424242424243 [2024-11-23 02:03:10,291 INFO L175 Difference]: Start difference. First operand has 36 places, 29 transitions, 76 flow. Second operand 5 states and 103 transitions. [2024-11-23 02:03:10,291 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 49 transitions, 210 flow [2024-11-23 02:03:10,291 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 49 transitions, 205 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-23 02:03:10,292 INFO L231 Difference]: Finished difference. Result has 37 places, 24 transitions, 69 flow [2024-11-23 02:03:10,292 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=69, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=69, PETRI_PLACES=37, PETRI_TRANSITIONS=24} [2024-11-23 02:03:10,293 INFO L277 CegarLoopForPetriNet]: 37 programPoint places, 0 predicate places. [2024-11-23 02:03:10,293 INFO L471 AbstractCegarLoop]: Abstraction has has 37 places, 24 transitions, 69 flow [2024-11-23 02:03:10,293 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 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) [2024-11-23 02:03:10,293 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-23 02:03:10,293 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 02:03:10,293 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-23 02:03:10,294 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting f2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 13 more)] === [2024-11-23 02:03:10,294 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 02:03:10,294 INFO L85 PathProgramCache]: Analyzing trace with hash 887257127, now seen corresponding path program 1 times [2024-11-23 02:03:10,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 02:03:10,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445112877] [2024-11-23 02:03:10,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 02:03:10,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 02:03:10,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 02:03:10,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 02:03:10,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 02:03:10,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1445112877] [2024-11-23 02:03:10,348 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1445112877] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 02:03:10,348 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 02:03:10,348 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 02:03:10,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451775233] [2024-11-23 02:03:10,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 02:03:10,348 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 02:03:10,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 02:03:10,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 02:03:10,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-23 02:03:10,389 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 33 [2024-11-23 02:03:10,390 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 24 transitions, 69 flow. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 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) [2024-11-23 02:03:10,390 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 02:03:10,390 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 33 [2024-11-23 02:03:10,390 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 02:03:10,474 INFO L124 PetriNetUnfolderBase]: 32/95 cut-off events. [2024-11-23 02:03:10,474 INFO L125 PetriNetUnfolderBase]: For 15/15 co-relation queries the response was YES. [2024-11-23 02:03:10,475 INFO L83 FinitePrefix]: Finished finitePrefix Result has 207 conditions, 95 events. 32/95 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 297 event pairs, 16 based on Foata normal form. 1/89 useless extension candidates. Maximal degree in co-relation 187. Up to 58 conditions per place. [2024-11-23 02:03:10,475 INFO L140 encePairwiseOnDemand]: 29/33 looper letters, 14 selfloop transitions, 3 changer transitions 0/26 dead transitions. [2024-11-23 02:03:10,475 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 26 transitions, 108 flow [2024-11-23 02:03:10,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 02:03:10,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-23 02:03:10,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 70 transitions. [2024-11-23 02:03:10,476 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5303030303030303 [2024-11-23 02:03:10,476 INFO L175 Difference]: Start difference. First operand has 37 places, 24 transitions, 69 flow. Second operand 4 states and 70 transitions. [2024-11-23 02:03:10,477 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 26 transitions, 108 flow [2024-11-23 02:03:10,477 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 26 transitions, 99 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-23 02:03:10,477 INFO L231 Difference]: Finished difference. Result has 33 places, 23 transitions, 64 flow [2024-11-23 02:03:10,478 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=58, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=64, PETRI_PLACES=33, PETRI_TRANSITIONS=23} [2024-11-23 02:03:10,478 INFO L277 CegarLoopForPetriNet]: 37 programPoint places, -4 predicate places. [2024-11-23 02:03:10,478 INFO L471 AbstractCegarLoop]: Abstraction has has 33 places, 23 transitions, 64 flow [2024-11-23 02:03:10,479 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 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) [2024-11-23 02:03:10,479 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-23 02:03:10,479 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 02:03:10,479 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-23 02:03:10,479 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 13 more)] === [2024-11-23 02:03:10,480 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 02:03:10,480 INFO L85 PathProgramCache]: Analyzing trace with hash 1293268734, now seen corresponding path program 1 times [2024-11-23 02:03:10,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 02:03:10,480 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493229104] [2024-11-23 02:03:10,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 02:03:10,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 02:03:10,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 02:03:10,565 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 02:03:10,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 02:03:10,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493229104] [2024-11-23 02:03:10,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1493229104] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 02:03:10,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [281103548] [2024-11-23 02:03:10,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 02:03:10,566 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 02:03:10,567 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 02:03:10,568 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) [2024-11-23 02:03:10,571 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-23 02:03:10,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 02:03:10,623 INFO L255 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-23 02:03:10,629 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 02:03:10,691 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 02:03:10,692 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 02:03:10,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [281103548] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 02:03:10,692 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 02:03:10,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-23 02:03:10,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026595097] [2024-11-23 02:03:10,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 02:03:10,692 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 02:03:10,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 02:03:10,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 02:03:10,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-23 02:03:10,709 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 33 [2024-11-23 02:03:10,709 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 23 transitions, 64 flow. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 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) [2024-11-23 02:03:10,709 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 02:03:10,709 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 33 [2024-11-23 02:03:10,709 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 02:03:10,735 INFO L124 PetriNetUnfolderBase]: 30/88 cut-off events. [2024-11-23 02:03:10,736 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-11-23 02:03:10,736 INFO L83 FinitePrefix]: Finished finitePrefix Result has 186 conditions, 88 events. 30/88 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 268 event pairs, 8 based on Foata normal form. 3/84 useless extension candidates. Maximal degree in co-relation 168. Up to 48 conditions per place. [2024-11-23 02:03:10,736 INFO L140 encePairwiseOnDemand]: 28/33 looper letters, 14 selfloop transitions, 4 changer transitions 0/26 dead transitions. [2024-11-23 02:03:10,736 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 26 transitions, 107 flow [2024-11-23 02:03:10,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 02:03:10,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-23 02:03:10,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 84 transitions. [2024-11-23 02:03:10,737 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.509090909090909 [2024-11-23 02:03:10,737 INFO L175 Difference]: Start difference. First operand has 33 places, 23 transitions, 64 flow. Second operand 5 states and 84 transitions. [2024-11-23 02:03:10,737 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 26 transitions, 107 flow [2024-11-23 02:03:10,738 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 26 transitions, 100 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-23 02:03:10,738 INFO L231 Difference]: Finished difference. Result has 33 places, 22 transitions, 66 flow [2024-11-23 02:03:10,738 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=54, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=66, PETRI_PLACES=33, PETRI_TRANSITIONS=22} [2024-11-23 02:03:10,739 INFO L277 CegarLoopForPetriNet]: 37 programPoint places, -4 predicate places. [2024-11-23 02:03:10,739 INFO L471 AbstractCegarLoop]: Abstraction has has 33 places, 22 transitions, 66 flow [2024-11-23 02:03:10,739 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 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) [2024-11-23 02:03:10,739 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-23 02:03:10,739 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 02:03:10,747 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-23 02:03:10,943 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 02:03:10,944 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting f2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 13 more)] === [2024-11-23 02:03:10,944 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 02:03:10,944 INFO L85 PathProgramCache]: Analyzing trace with hash 1913451785, now seen corresponding path program 1 times [2024-11-23 02:03:10,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 02:03:10,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326300793] [2024-11-23 02:03:10,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 02:03:10,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 02:03:10,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 02:03:11,005 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-23 02:03:11,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 02:03:11,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326300793] [2024-11-23 02:03:11,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1326300793] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 02:03:11,007 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 02:03:11,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 02:03:11,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739060225] [2024-11-23 02:03:11,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 02:03:11,007 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 02:03:11,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 02:03:11,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 02:03:11,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 02:03:11,012 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 33 [2024-11-23 02:03:11,012 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 22 transitions, 66 flow. Second operand has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 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) [2024-11-23 02:03:11,012 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 02:03:11,013 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 33 [2024-11-23 02:03:11,013 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 02:03:11,063 INFO L124 PetriNetUnfolderBase]: 58/134 cut-off events. [2024-11-23 02:03:11,064 INFO L125 PetriNetUnfolderBase]: For 11/11 co-relation queries the response was YES. [2024-11-23 02:03:11,064 INFO L83 FinitePrefix]: Finished finitePrefix Result has 298 conditions, 134 events. 58/134 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 451 event pairs, 38 based on Foata normal form. 6/132 useless extension candidates. Maximal degree in co-relation 280. Up to 89 conditions per place. [2024-11-23 02:03:11,065 INFO L140 encePairwiseOnDemand]: 28/33 looper letters, 20 selfloop transitions, 3 changer transitions 0/30 dead transitions. [2024-11-23 02:03:11,067 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 30 transitions, 130 flow [2024-11-23 02:03:11,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 02:03:11,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-23 02:03:11,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 89 transitions. [2024-11-23 02:03:11,068 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6742424242424242 [2024-11-23 02:03:11,068 INFO L175 Difference]: Start difference. First operand has 33 places, 22 transitions, 66 flow. Second operand 4 states and 89 transitions. [2024-11-23 02:03:11,068 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 30 transitions, 130 flow [2024-11-23 02:03:11,069 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 30 transitions, 120 flow, removed 1 selfloop flow, removed 4 redundant places. [2024-11-23 02:03:11,069 INFO L231 Difference]: Finished difference. Result has 34 places, 24 transitions, 78 flow [2024-11-23 02:03:11,069 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=56, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=78, PETRI_PLACES=34, PETRI_TRANSITIONS=24} [2024-11-23 02:03:11,070 INFO L277 CegarLoopForPetriNet]: 37 programPoint places, -3 predicate places. [2024-11-23 02:03:11,070 INFO L471 AbstractCegarLoop]: Abstraction has has 34 places, 24 transitions, 78 flow [2024-11-23 02:03:11,070 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 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) [2024-11-23 02:03:11,070 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-23 02:03:11,070 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 02:03:11,070 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-23 02:03:11,070 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting f2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 13 more)] === [2024-11-23 02:03:11,070 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 02:03:11,070 INFO L85 PathProgramCache]: Analyzing trace with hash 836441319, now seen corresponding path program 1 times [2024-11-23 02:03:11,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 02:03:11,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778247642] [2024-11-23 02:03:11,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 02:03:11,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 02:03:11,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 02:03:11,147 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-23 02:03:11,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 02:03:11,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778247642] [2024-11-23 02:03:11,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1778247642] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 02:03:11,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [381517655] [2024-11-23 02:03:11,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 02:03:11,148 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 02:03:11,148 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 02:03:11,150 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) [2024-11-23 02:03:11,162 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-23 02:03:11,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 02:03:11,205 INFO L255 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-23 02:03:11,206 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 02:03:11,274 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-23 02:03:11,274 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 02:03:11,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [381517655] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 02:03:11,275 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 02:03:11,275 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-11-23 02:03:11,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731148048] [2024-11-23 02:03:11,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 02:03:11,276 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 02:03:11,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 02:03:11,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 02:03:11,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-23 02:03:11,282 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 33 [2024-11-23 02:03:11,282 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 24 transitions, 78 flow. Second operand has 6 states, 6 states have (on average 18.0) internal successors, (108), 6 states have internal predecessors, (108), 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) [2024-11-23 02:03:11,283 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 02:03:11,283 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 33 [2024-11-23 02:03:11,283 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 02:03:11,392 INFO L124 PetriNetUnfolderBase]: 51/121 cut-off events. [2024-11-23 02:03:11,393 INFO L125 PetriNetUnfolderBase]: For 28/28 co-relation queries the response was YES. [2024-11-23 02:03:11,394 INFO L83 FinitePrefix]: Finished finitePrefix Result has 308 conditions, 121 events. 51/121 cut-off events. For 28/28 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 403 event pairs, 10 based on Foata normal form. 6/119 useless extension candidates. Maximal degree in co-relation 291. Up to 31 conditions per place. [2024-11-23 02:03:11,394 INFO L140 encePairwiseOnDemand]: 29/33 looper letters, 23 selfloop transitions, 5 changer transitions 0/35 dead transitions. [2024-11-23 02:03:11,394 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 35 transitions, 158 flow [2024-11-23 02:03:11,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 02:03:11,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-23 02:03:11,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 125 transitions. [2024-11-23 02:03:11,397 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6313131313131313 [2024-11-23 02:03:11,397 INFO L175 Difference]: Start difference. First operand has 34 places, 24 transitions, 78 flow. Second operand 6 states and 125 transitions. [2024-11-23 02:03:11,397 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 35 transitions, 158 flow [2024-11-23 02:03:11,398 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 35 transitions, 156 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-23 02:03:11,399 INFO L231 Difference]: Finished difference. Result has 37 places, 23 transitions, 82 flow [2024-11-23 02:03:11,399 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=72, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=82, PETRI_PLACES=37, PETRI_TRANSITIONS=23} [2024-11-23 02:03:11,400 INFO L277 CegarLoopForPetriNet]: 37 programPoint places, 0 predicate places. [2024-11-23 02:03:11,400 INFO L471 AbstractCegarLoop]: Abstraction has has 37 places, 23 transitions, 82 flow [2024-11-23 02:03:11,400 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.0) internal successors, (108), 6 states have internal predecessors, (108), 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) [2024-11-23 02:03:11,400 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-23 02:03:11,401 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 02:03:11,408 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-23 02:03:11,601 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-11-23 02:03:11,602 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting f2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 13 more)] === [2024-11-23 02:03:11,602 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 02:03:11,602 INFO L85 PathProgramCache]: Analyzing trace with hash 159877382, now seen corresponding path program 1 times [2024-11-23 02:03:11,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 02:03:11,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1946966620] [2024-11-23 02:03:11,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 02:03:11,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 02:03:11,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 02:03:11,672 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-23 02:03:11,672 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 02:03:11,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1946966620] [2024-11-23 02:03:11,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1946966620] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 02:03:11,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [279774874] [2024-11-23 02:03:11,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 02:03:11,673 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 02:03:11,673 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 02:03:11,679 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) [2024-11-23 02:03:11,682 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-23 02:03:11,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 02:03:11,725 INFO L255 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-23 02:03:11,726 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 02:03:11,748 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-23 02:03:11,748 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 02:03:11,778 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-23 02:03:11,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [279774874] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 02:03:11,778 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 02:03:11,779 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-11-23 02:03:11,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275852965] [2024-11-23 02:03:11,779 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 02:03:11,779 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-23 02:03:11,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 02:03:11,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-23 02:03:11,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-23 02:03:11,791 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 33 [2024-11-23 02:03:11,792 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 23 transitions, 82 flow. Second operand has 12 states, 12 states have (on average 17.666666666666668) internal successors, (212), 12 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 02:03:11,792 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 02:03:11,792 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 33 [2024-11-23 02:03:11,792 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 02:03:11,904 INFO L124 PetriNetUnfolderBase]: 93/217 cut-off events. [2024-11-23 02:03:11,904 INFO L125 PetriNetUnfolderBase]: For 130/130 co-relation queries the response was YES. [2024-11-23 02:03:11,905 INFO L83 FinitePrefix]: Finished finitePrefix Result has 590 conditions, 217 events. 93/217 cut-off events. For 130/130 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 780 event pairs, 31 based on Foata normal form. 18/233 useless extension candidates. Maximal degree in co-relation 573. Up to 76 conditions per place. [2024-11-23 02:03:11,905 INFO L140 encePairwiseOnDemand]: 29/33 looper letters, 37 selfloop transitions, 9 changer transitions 0/53 dead transitions. [2024-11-23 02:03:11,905 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 53 transitions, 266 flow [2024-11-23 02:03:11,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-23 02:03:11,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-23 02:03:11,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 209 transitions. [2024-11-23 02:03:11,906 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6333333333333333 [2024-11-23 02:03:11,907 INFO L175 Difference]: Start difference. First operand has 37 places, 23 transitions, 82 flow. Second operand 10 states and 209 transitions. [2024-11-23 02:03:11,907 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 53 transitions, 266 flow [2024-11-23 02:03:11,908 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 53 transitions, 240 flow, removed 4 selfloop flow, removed 5 redundant places. [2024-11-23 02:03:11,908 INFO L231 Difference]: Finished difference. Result has 44 places, 29 transitions, 126 flow [2024-11-23 02:03:11,909 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=68, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=126, PETRI_PLACES=44, PETRI_TRANSITIONS=29} [2024-11-23 02:03:11,909 INFO L277 CegarLoopForPetriNet]: 37 programPoint places, 7 predicate places. [2024-11-23 02:03:11,909 INFO L471 AbstractCegarLoop]: Abstraction has has 44 places, 29 transitions, 126 flow [2024-11-23 02:03:11,909 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 17.666666666666668) internal successors, (212), 12 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 02:03:11,910 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-23 02:03:11,910 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 02:03:11,916 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-23 02:03:12,110 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 02:03:12,114 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting f2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 13 more)] === [2024-11-23 02:03:12,114 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 02:03:12,114 INFO L85 PathProgramCache]: Analyzing trace with hash 1876088484, now seen corresponding path program 2 times [2024-11-23 02:03:12,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 02:03:12,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613478498] [2024-11-23 02:03:12,115 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 02:03:12,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 02:03:12,121 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-23 02:03:12,122 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 02:03:12,151 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-11-23 02:03:12,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 02:03:12,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1613478498] [2024-11-23 02:03:12,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1613478498] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 02:03:12,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [361370967] [2024-11-23 02:03:12,152 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 02:03:12,152 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 02:03:12,152 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 02:03:12,154 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) [2024-11-23 02:03:12,155 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-23 02:03:12,191 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-23 02:03:12,191 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 02:03:12,191 INFO L255 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-23 02:03:12,192 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 02:03:12,220 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-11-23 02:03:12,221 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 02:03:12,269 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-11-23 02:03:12,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [361370967] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 02:03:12,269 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 02:03:12,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 8 [2024-11-23 02:03:12,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767387266] [2024-11-23 02:03:12,269 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 02:03:12,270 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-23 02:03:12,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 02:03:12,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-23 02:03:12,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-23 02:03:12,298 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 33 [2024-11-23 02:03:12,298 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 29 transitions, 126 flow. Second operand has 10 states, 10 states have (on average 14.6) internal successors, (146), 10 states have internal predecessors, (146), 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) [2024-11-23 02:03:12,298 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 02:03:12,298 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 33 [2024-11-23 02:03:12,298 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 02:03:12,397 INFO L124 PetriNetUnfolderBase]: 167/379 cut-off events. [2024-11-23 02:03:12,397 INFO L125 PetriNetUnfolderBase]: For 509/509 co-relation queries the response was YES. [2024-11-23 02:03:12,398 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1076 conditions, 379 events. 167/379 cut-off events. For 509/509 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1439 event pairs, 27 based on Foata normal form. 8/386 useless extension candidates. Maximal degree in co-relation 1056. Up to 114 conditions per place. [2024-11-23 02:03:12,398 INFO L140 encePairwiseOnDemand]: 27/33 looper letters, 27 selfloop transitions, 2 changer transitions 31/65 dead transitions. [2024-11-23 02:03:12,398 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 65 transitions, 422 flow [2024-11-23 02:03:12,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-23 02:03:12,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-23 02:03:12,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 134 transitions. [2024-11-23 02:03:12,399 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5075757575757576 [2024-11-23 02:03:12,399 INFO L175 Difference]: Start difference. First operand has 44 places, 29 transitions, 126 flow. Second operand 8 states and 134 transitions. [2024-11-23 02:03:12,399 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 65 transitions, 422 flow [2024-11-23 02:03:12,401 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 65 transitions, 393 flow, removed 9 selfloop flow, removed 2 redundant places. [2024-11-23 02:03:12,401 INFO L231 Difference]: Finished difference. Result has 54 places, 29 transitions, 168 flow [2024-11-23 02:03:12,402 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=116, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=168, PETRI_PLACES=54, PETRI_TRANSITIONS=29} [2024-11-23 02:03:12,402 INFO L277 CegarLoopForPetriNet]: 37 programPoint places, 17 predicate places. [2024-11-23 02:03:12,402 INFO L471 AbstractCegarLoop]: Abstraction has has 54 places, 29 transitions, 168 flow [2024-11-23 02:03:12,402 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 14.6) internal successors, (146), 10 states have internal predecessors, (146), 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) [2024-11-23 02:03:12,402 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-23 02:03:12,402 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 02:03:12,413 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-23 02:03:12,603 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 02:03:12,603 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting f2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 13 more)] === [2024-11-23 02:03:12,603 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 02:03:12,603 INFO L85 PathProgramCache]: Analyzing trace with hash 1057413001, now seen corresponding path program 1 times [2024-11-23 02:03:12,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 02:03:12,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83582690] [2024-11-23 02:03:12,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 02:03:12,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 02:03:12,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 02:03:12,692 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-23 02:03:12,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 02:03:12,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83582690] [2024-11-23 02:03:12,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [83582690] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 02:03:12,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1338576105] [2024-11-23 02:03:12,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 02:03:12,692 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 02:03:12,692 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 02:03:12,694 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) [2024-11-23 02:03:12,695 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-23 02:03:12,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 02:03:12,741 INFO L255 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-23 02:03:12,743 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 02:03:12,826 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 23 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-23 02:03:12,826 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 02:03:12,914 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 23 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-23 02:03:12,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1338576105] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 02:03:12,915 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 02:03:12,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 10, 10] total 17 [2024-11-23 02:03:12,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797968566] [2024-11-23 02:03:12,915 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 02:03:12,915 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-23 02:03:12,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 02:03:12,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-23 02:03:12,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=250, Unknown=0, NotChecked=0, Total=306 [2024-11-23 02:03:12,984 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 33 [2024-11-23 02:03:12,984 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 29 transitions, 168 flow. Second operand has 18 states, 18 states have (on average 11.666666666666666) internal successors, (210), 18 states have internal predecessors, (210), 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) [2024-11-23 02:03:12,984 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 02:03:12,984 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 33 [2024-11-23 02:03:12,984 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 02:03:13,165 INFO L124 PetriNetUnfolderBase]: 35/96 cut-off events. [2024-11-23 02:03:13,165 INFO L125 PetriNetUnfolderBase]: For 121/121 co-relation queries the response was YES. [2024-11-23 02:03:13,166 INFO L83 FinitePrefix]: Finished finitePrefix Result has 300 conditions, 96 events. 35/96 cut-off events. For 121/121 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 205 event pairs, 0 based on Foata normal form. 4/100 useless extension candidates. Maximal degree in co-relation 286. Up to 22 conditions per place. [2024-11-23 02:03:13,166 INFO L140 encePairwiseOnDemand]: 27/33 looper letters, 0 selfloop transitions, 0 changer transitions 42/42 dead transitions. [2024-11-23 02:03:13,166 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 42 transitions, 220 flow [2024-11-23 02:03:13,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-23 02:03:13,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-23 02:03:13,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 138 transitions. [2024-11-23 02:03:13,167 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.41818181818181815 [2024-11-23 02:03:13,167 INFO L175 Difference]: Start difference. First operand has 54 places, 29 transitions, 168 flow. Second operand 10 states and 138 transitions. [2024-11-23 02:03:13,167 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 42 transitions, 220 flow [2024-11-23 02:03:13,168 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 42 transitions, 191 flow, removed 8 selfloop flow, removed 11 redundant places. [2024-11-23 02:03:13,168 INFO L231 Difference]: Finished difference. Result has 44 places, 0 transitions, 0 flow [2024-11-23 02:03:13,168 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=65, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=0, PETRI_PLACES=44, PETRI_TRANSITIONS=0} [2024-11-23 02:03:13,168 INFO L277 CegarLoopForPetriNet]: 37 programPoint places, 7 predicate places. [2024-11-23 02:03:13,168 INFO L471 AbstractCegarLoop]: Abstraction has has 44 places, 0 transitions, 0 flow [2024-11-23 02:03:13,169 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 11.666666666666666) internal successors, (210), 18 states have internal predecessors, (210), 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) [2024-11-23 02:03:13,171 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 16 remaining) [2024-11-23 02:03:13,171 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 16 remaining) [2024-11-23 02:03:13,171 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (13 of 16 remaining) [2024-11-23 02:03:13,171 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 16 remaining) [2024-11-23 02:03:13,171 INFO L782 garLoopResultBuilder]: Registering result SAFE for location f1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 16 remaining) [2024-11-23 02:03:13,172 INFO L782 garLoopResultBuilder]: Registering result SAFE for location f1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 16 remaining) [2024-11-23 02:03:13,172 INFO L782 garLoopResultBuilder]: Registering result SAFE for location f2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 16 remaining) [2024-11-23 02:03:13,172 INFO L782 garLoopResultBuilder]: Registering result SAFE for location f2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 16 remaining) [2024-11-23 02:03:13,172 INFO L782 garLoopResultBuilder]: Registering result SAFE for location f2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 16 remaining) [2024-11-23 02:03:13,172 INFO L782 garLoopResultBuilder]: Registering result SAFE for location f2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 16 remaining) [2024-11-23 02:03:13,172 INFO L782 garLoopResultBuilder]: Registering result SAFE for location f1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 16 remaining) [2024-11-23 02:03:13,172 INFO L782 garLoopResultBuilder]: Registering result SAFE for location f1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 16 remaining) [2024-11-23 02:03:13,172 INFO L782 garLoopResultBuilder]: Registering result SAFE for location f2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 16 remaining) [2024-11-23 02:03:13,172 INFO L782 garLoopResultBuilder]: Registering result SAFE for location f2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 16 remaining) [2024-11-23 02:03:13,172 INFO L782 garLoopResultBuilder]: Registering result SAFE for location f2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 16 remaining) [2024-11-23 02:03:13,172 INFO L782 garLoopResultBuilder]: Registering result SAFE for location f2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 16 remaining) [2024-11-23 02:03:13,178 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-23 02:03:13,374 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-23 02:03:13,375 INFO L407 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 02:03:13,379 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-23 02:03:13,379 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-23 02:03:13,382 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 02:03:13 BasicIcfg [2024-11-23 02:03:13,382 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-23 02:03:13,383 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-23 02:03:13,383 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-23 02:03:13,383 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-23 02:03:13,383 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:03:09" (3/4) ... [2024-11-23 02:03:13,384 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-23 02:03:13,390 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure f1 [2024-11-23 02:03:13,390 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure f2 [2024-11-23 02:03:13,393 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 37 nodes and edges [2024-11-23 02:03:13,393 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2024-11-23 02:03:13,393 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-11-23 02:03:13,393 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-23 02:03:13,449 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-23 02:03:13,450 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-23 02:03:13,450 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-23 02:03:13,450 INFO L158 Benchmark]: Toolchain (without parser) took 4859.36ms. Allocated memory was 184.5MB in the beginning and 251.7MB in the end (delta: 67.1MB). Free memory was 114.8MB in the beginning and 151.7MB in the end (delta: -36.8MB). Peak memory consumption was 31.0MB. Max. memory is 16.1GB. [2024-11-23 02:03:13,450 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 104.9MB. Free memory is still 66.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 02:03:13,450 INFO L158 Benchmark]: CACSL2BoogieTranslator took 418.91ms. Allocated memory is still 184.5MB. Free memory was 114.7MB in the beginning and 148.7MB in the end (delta: -34.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-11-23 02:03:13,450 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.23ms. Allocated memory is still 184.5MB. Free memory was 148.0MB in the beginning and 146.5MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-23 02:03:13,451 INFO L158 Benchmark]: Boogie Preprocessor took 35.63ms. Allocated memory is still 184.5MB. Free memory was 146.5MB in the beginning and 144.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-23 02:03:13,451 INFO L158 Benchmark]: RCFGBuilder took 399.76ms. Allocated memory is still 184.5MB. Free memory was 144.5MB in the beginning and 122.1MB in the end (delta: 22.4MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-11-23 02:03:13,451 INFO L158 Benchmark]: TraceAbstraction took 3896.98ms. Allocated memory was 184.5MB in the beginning and 251.7MB in the end (delta: 67.1MB). Free memory was 121.4MB in the beginning and 155.9MB in the end (delta: -34.4MB). Peak memory consumption was 33.4MB. Max. memory is 16.1GB. [2024-11-23 02:03:13,451 INFO L158 Benchmark]: Witness Printer took 66.91ms. Allocated memory is still 251.7MB. Free memory was 155.9MB in the beginning and 151.7MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-23 02:03:13,452 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 104.9MB. Free memory is still 66.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 418.91ms. Allocated memory is still 184.5MB. Free memory was 114.7MB in the beginning and 148.7MB in the end (delta: -34.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.23ms. Allocated memory is still 184.5MB. Free memory was 148.0MB in the beginning and 146.5MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.63ms. Allocated memory is still 184.5MB. Free memory was 146.5MB in the beginning and 144.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 399.76ms. Allocated memory is still 184.5MB. Free memory was 144.5MB in the beginning and 122.1MB in the end (delta: 22.4MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 3896.98ms. Allocated memory was 184.5MB in the beginning and 251.7MB in the end (delta: 67.1MB). Free memory was 121.4MB in the beginning and 155.9MB in the end (delta: -34.4MB). Peak memory consumption was 33.4MB. Max. memory is 16.1GB. * Witness Printer took 66.91ms. Allocated memory is still 251.7MB. Free memory was 155.9MB in the beginning and 151.7MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 773]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 773]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 759]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 759]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 765]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 766]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 765]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 766]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 53 locations, 16 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 3.8s, OverallIterations: 10, TraceHistogramMax: 5, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 582 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 494 mSDsluCounter, 574 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 524 mSDsCounter, 34 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1067 IncrementalHoareTripleChecker+Invalid, 1101 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 34 mSolverCounterUnsat, 50 mSDtfsCounter, 1067 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 227 GetRequests, 142 SyntacticMatches, 4 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 144 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=168occurred in iteration=9, InterpolantAutomatonStates: 60, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 241 NumberOfCodeBlocks, 207 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 296 ConstructedInterpolants, 0 QuantifiedInterpolants, 808 SizeOfPredicates, 19 NumberOfNonLiveVariables, 389 ConjunctsInSsa, 31 ConjunctsInUnsatCore, 18 InterpolantComputations, 7 PerfectInterpolantSequences, 162/209 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-23 02:03:13,472 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE