./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/pthread-theta/unwind2-nondet.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version c7c6ca5d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/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/unwind2-nondet.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 797a9e1bf9dc9387a2e0877719131f75c1f5b0797aa4bcc7c94038568bc56c2d --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-09 15:16:25,313 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 15:16:25,370 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-09 15:16:25,377 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 15:16:25,378 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 15:16:25,412 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 15:16:25,413 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 15:16:25,413 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 15:16:25,414 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 15:16:25,415 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 15:16:25,415 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 15:16:25,416 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 15:16:25,416 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 15:16:25,416 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 15:16:25,419 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 15:16:25,419 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 15:16:25,419 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 15:16:25,436 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 15:16:25,437 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 15:16:25,437 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 15:16:25,437 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 15:16:25,439 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 15:16:25,439 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 15:16:25,439 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 15:16:25,439 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 15:16:25,439 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-09 15:16:25,439 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 15:16:25,440 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 15:16:25,440 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 15:16:25,440 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 15:16:25,440 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 15:16:25,440 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 15:16:25,440 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 15:16:25,441 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 15:16:25,441 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 15:16:25,441 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 15:16:25,441 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 15:16:25,441 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 15:16:25,441 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 15:16:25,441 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 15:16:25,442 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 15:16:25,444 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 15:16:25,444 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 15:16:25,445 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 15:16:25,445 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 797a9e1bf9dc9387a2e0877719131f75c1f5b0797aa4bcc7c94038568bc56c2d [2024-11-09 15:16:25,646 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 15:16:25,667 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 15:16:25,669 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 15:16:25,669 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 15:16:25,670 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 15:16:25,671 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-theta/unwind2-nondet.i [2024-11-09 15:16:27,069 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 15:16:27,244 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 15:16:27,244 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-theta/unwind2-nondet.i [2024-11-09 15:16:27,254 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ab44d0fa9/541b54f40aa94a2b830148c7046ec670/FLAGea4bf2423 [2024-11-09 15:16:27,267 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ab44d0fa9/541b54f40aa94a2b830148c7046ec670 [2024-11-09 15:16:27,270 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 15:16:27,271 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 15:16:27,273 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 15:16:27,274 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 15:16:27,279 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 15:16:27,280 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 03:16:27" (1/1) ... [2024-11-09 15:16:27,282 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c745c7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:16:27, skipping insertion in model container [2024-11-09 15:16:27,282 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 03:16:27" (1/1) ... [2024-11-09 15:16:27,316 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 15:16:27,562 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 15:16:27,569 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 15:16:27,618 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 15:16:27,646 INFO L204 MainTranslator]: Completed translation [2024-11-09 15:16:27,647 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:16:27 WrapperNode [2024-11-09 15:16:27,647 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 15:16:27,648 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 15:16:27,648 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 15:16:27,648 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 15:16:27,653 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:16:27" (1/1) ... [2024-11-09 15:16:27,665 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:16:27" (1/1) ... [2024-11-09 15:16:27,684 INFO L138 Inliner]: procedures = 169, calls = 12, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 94 [2024-11-09 15:16:27,685 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 15:16:27,687 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 15:16:27,687 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 15:16:27,688 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 15:16:27,696 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:16:27" (1/1) ... [2024-11-09 15:16:27,696 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:16:27" (1/1) ... [2024-11-09 15:16:27,700 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:16:27" (1/1) ... [2024-11-09 15:16:27,723 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]. [2024-11-09 15:16:27,726 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:16:27" (1/1) ... [2024-11-09 15:16:27,726 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:16:27" (1/1) ... [2024-11-09 15:16:27,729 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:16:27" (1/1) ... [2024-11-09 15:16:27,736 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:16:27" (1/1) ... [2024-11-09 15:16:27,739 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:16:27" (1/1) ... [2024-11-09 15:16:27,740 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:16:27" (1/1) ... [2024-11-09 15:16:27,746 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 15:16:27,747 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 15:16:27,747 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 15:16:27,747 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 15:16:27,748 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:16:27" (1/1) ... [2024-11-09 15:16:27,765 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 15:16:27,781 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:16:27,794 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) [2024-11-09 15:16:27,796 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 [2024-11-09 15:16:27,862 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 15:16:27,862 INFO L130 BoogieDeclarations]: Found specification of procedure f1 [2024-11-09 15:16:27,862 INFO L138 BoogieDeclarations]: Found implementation of procedure f1 [2024-11-09 15:16:27,862 INFO L130 BoogieDeclarations]: Found specification of procedure f2 [2024-11-09 15:16:27,862 INFO L138 BoogieDeclarations]: Found implementation of procedure f2 [2024-11-09 15:16:27,863 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 15:16:27,863 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 15:16:27,863 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 15:16:27,864 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-09 15:16:27,994 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 15:16:27,996 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 15:16:28,117 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-09 15:16:28,117 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 15:16:28,199 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 15:16:28,199 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-09 15:16:28,199 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 03:16:28 BoogieIcfgContainer [2024-11-09 15:16:28,200 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 15:16:28,201 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 15:16:28,201 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 15:16:28,204 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 15:16:28,204 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 03:16:27" (1/3) ... [2024-11-09 15:16:28,205 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d5ed6c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 03:16:28, skipping insertion in model container [2024-11-09 15:16:28,205 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:16:27" (2/3) ... [2024-11-09 15:16:28,205 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d5ed6c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 03:16:28, skipping insertion in model container [2024-11-09 15:16:28,205 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 03:16:28" (3/3) ... [2024-11-09 15:16:28,206 INFO L112 eAbstractionObserver]: Analyzing ICFG unwind2-nondet.i [2024-11-09 15:16:28,218 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 15:16:28,218 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2024-11-09 15:16:28,218 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-09 15:16:28,259 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-09 15:16:28,287 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 37 places, 32 transitions, 78 flow [2024-11-09 15:16:28,312 INFO L124 PetriNetUnfolderBase]: 2/30 cut-off events. [2024-11-09 15:16:28,312 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-09 15:16:28,315 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39 conditions, 30 events. 2/30 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 53 event pairs, 0 based on Foata normal form. 0/22 useless extension candidates. Maximal degree in co-relation 27. Up to 2 conditions per place. [2024-11-09 15:16:28,316 INFO L82 GeneralOperation]: Start removeDead. Operand has 37 places, 32 transitions, 78 flow [2024-11-09 15:16:28,318 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 33 places, 28 transitions, 65 flow [2024-11-09 15:16:28,325 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 15:16:28,330 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;@2ab282a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 15:16:28,330 INFO L334 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2024-11-09 15:16:28,334 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 15:16:28,334 INFO L124 PetriNetUnfolderBase]: 0/11 cut-off events. [2024-11-09 15:16:28,334 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-09 15:16:28,335 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:16:28,335 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-09 15:16:28,339 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting f2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 12 more)] === [2024-11-09 15:16:28,344 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:16:28,344 INFO L85 PathProgramCache]: Analyzing trace with hash -42937927, now seen corresponding path program 1 times [2024-11-09 15:16:28,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:16:28,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986159772] [2024-11-09 15:16:28,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:16:28,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:16:28,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:16:28,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:16:28,538 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:16:28,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986159772] [2024-11-09 15:16:28,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [986159772] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:16:28,539 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:16:28,539 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-09 15:16:28,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694294449] [2024-11-09 15:16:28,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:16:28,562 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 15:16:28,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:16:28,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 15:16:28,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 15:16:28,631 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 32 [2024-11-09 15:16:28,633 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 28 transitions, 65 flow. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 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) [2024-11-09 15:16:28,635 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:16:28,635 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 32 [2024-11-09 15:16:28,636 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:16:28,723 INFO L124 PetriNetUnfolderBase]: 123/288 cut-off events. [2024-11-09 15:16:28,723 INFO L125 PetriNetUnfolderBase]: For 15/15 co-relation queries the response was YES. [2024-11-09 15:16:28,724 INFO L83 FinitePrefix]: Finished finitePrefix Result has 522 conditions, 288 events. 123/288 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1334 event pairs, 96 based on Foata normal form. 11/229 useless extension candidates. Maximal degree in co-relation 474. Up to 211 conditions per place. [2024-11-09 15:16:28,727 INFO L140 encePairwiseOnDemand]: 30/32 looper letters, 17 selfloop transitions, 1 changer transitions 0/27 dead transitions. [2024-11-09 15:16:28,727 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 27 transitions, 99 flow [2024-11-09 15:16:28,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 15:16:28,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 15:16:28,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 52 transitions. [2024-11-09 15:16:28,738 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5416666666666666 [2024-11-09 15:16:28,740 INFO L175 Difference]: Start difference. First operand has 33 places, 28 transitions, 65 flow. Second operand 3 states and 52 transitions. [2024-11-09 15:16:28,740 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 27 transitions, 99 flow [2024-11-09 15:16:28,743 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 27 transitions, 94 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-09 15:16:28,744 INFO L231 Difference]: Finished difference. Result has 31 places, 27 transitions, 60 flow [2024-11-09 15:16:28,746 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=58, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=60, PETRI_PLACES=31, PETRI_TRANSITIONS=27} [2024-11-09 15:16:28,748 INFO L277 CegarLoopForPetriNet]: 33 programPoint places, -2 predicate places. [2024-11-09 15:16:28,749 INFO L471 AbstractCegarLoop]: Abstraction has has 31 places, 27 transitions, 60 flow [2024-11-09 15:16:28,749 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 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) [2024-11-09 15:16:28,749 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:16:28,749 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:16:28,750 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 15:16:28,750 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting f2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 12 more)] === [2024-11-09 15:16:28,750 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:16:28,751 INFO L85 PathProgramCache]: Analyzing trace with hash -1331075430, now seen corresponding path program 1 times [2024-11-09 15:16:28,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:16:28,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621296307] [2024-11-09 15:16:28,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:16:28,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:16:28,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:16:28,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:16:28,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:16:28,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621296307] [2024-11-09 15:16:28,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [621296307] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:16:28,819 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:16:28,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-09 15:16:28,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275273827] [2024-11-09 15:16:28,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:16:28,820 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 15:16:28,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:16:28,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 15:16:28,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 15:16:28,825 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 32 [2024-11-09 15:16:28,825 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 27 transitions, 60 flow. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 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) [2024-11-09 15:16:28,826 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:16:28,826 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 32 [2024-11-09 15:16:28,826 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:16:28,877 INFO L124 PetriNetUnfolderBase]: 107/255 cut-off events. [2024-11-09 15:16:28,878 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-09 15:16:28,879 INFO L83 FinitePrefix]: Finished finitePrefix Result has 454 conditions, 255 events. 107/255 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1116 event pairs, 82 based on Foata normal form. 0/200 useless extension candidates. Maximal degree in co-relation 448. Up to 184 conditions per place. [2024-11-09 15:16:28,882 INFO L140 encePairwiseOnDemand]: 30/32 looper letters, 16 selfloop transitions, 1 changer transitions 0/26 dead transitions. [2024-11-09 15:16:28,882 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 26 transitions, 92 flow [2024-11-09 15:16:28,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 15:16:28,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 15:16:28,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 51 transitions. [2024-11-09 15:16:28,883 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.53125 [2024-11-09 15:16:28,883 INFO L175 Difference]: Start difference. First operand has 31 places, 27 transitions, 60 flow. Second operand 3 states and 51 transitions. [2024-11-09 15:16:28,883 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 26 transitions, 92 flow [2024-11-09 15:16:28,883 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 26 transitions, 91 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 15:16:28,884 INFO L231 Difference]: Finished difference. Result has 31 places, 26 transitions, 59 flow [2024-11-09 15:16:28,884 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=57, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=59, PETRI_PLACES=31, PETRI_TRANSITIONS=26} [2024-11-09 15:16:28,884 INFO L277 CegarLoopForPetriNet]: 33 programPoint places, -2 predicate places. [2024-11-09 15:16:28,885 INFO L471 AbstractCegarLoop]: Abstraction has has 31 places, 26 transitions, 59 flow [2024-11-09 15:16:28,885 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 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) [2024-11-09 15:16:28,885 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:16:28,885 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:16:28,885 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 15:16:28,885 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting f1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 12 more)] === [2024-11-09 15:16:28,885 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:16:28,885 INFO L85 PathProgramCache]: Analyzing trace with hash -1330873875, now seen corresponding path program 1 times [2024-11-09 15:16:28,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:16:28,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170413189] [2024-11-09 15:16:28,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:16:28,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:16:28,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:16:28,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:16:28,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:16:28,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170413189] [2024-11-09 15:16:28,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1170413189] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:16:28,957 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:16:28,957 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 15:16:28,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220881180] [2024-11-09 15:16:28,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:16:28,957 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 15:16:28,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:16:28,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 15:16:28,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 15:16:28,964 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 32 [2024-11-09 15:16:28,965 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 26 transitions, 59 flow. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 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) [2024-11-09 15:16:28,965 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:16:28,966 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 32 [2024-11-09 15:16:28,966 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:16:29,089 INFO L124 PetriNetUnfolderBase]: 213/434 cut-off events. [2024-11-09 15:16:29,090 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-09 15:16:29,091 INFO L83 FinitePrefix]: Finished finitePrefix Result has 826 conditions, 434 events. 213/434 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 1932 event pairs, 118 based on Foata normal form. 14/363 useless extension candidates. Maximal degree in co-relation 819. Up to 253 conditions per place. [2024-11-09 15:16:29,097 INFO L140 encePairwiseOnDemand]: 27/32 looper letters, 38 selfloop transitions, 3 changer transitions 0/48 dead transitions. [2024-11-09 15:16:29,097 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 48 transitions, 190 flow [2024-11-09 15:16:29,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 15:16:29,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 15:16:29,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 87 transitions. [2024-11-09 15:16:29,099 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6796875 [2024-11-09 15:16:29,099 INFO L175 Difference]: Start difference. First operand has 31 places, 26 transitions, 59 flow. Second operand 4 states and 87 transitions. [2024-11-09 15:16:29,102 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 48 transitions, 190 flow [2024-11-09 15:16:29,103 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 48 transitions, 189 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 15:16:29,104 INFO L231 Difference]: Finished difference. Result has 35 places, 28 transitions, 80 flow [2024-11-09 15:16:29,104 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=58, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=80, PETRI_PLACES=35, PETRI_TRANSITIONS=28} [2024-11-09 15:16:29,105 INFO L277 CegarLoopForPetriNet]: 33 programPoint places, 2 predicate places. [2024-11-09 15:16:29,105 INFO L471 AbstractCegarLoop]: Abstraction has has 35 places, 28 transitions, 80 flow [2024-11-09 15:16:29,105 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 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) [2024-11-09 15:16:29,106 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:16:29,106 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:16:29,106 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 15:16:29,106 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting f1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 12 more)] === [2024-11-09 15:16:29,107 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:16:29,107 INFO L85 PathProgramCache]: Analyzing trace with hash -1220201020, now seen corresponding path program 1 times [2024-11-09 15:16:29,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:16:29,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406636488] [2024-11-09 15:16:29,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:16:29,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:16:29,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:16:29,175 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:16:29,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:16:29,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406636488] [2024-11-09 15:16:29,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1406636488] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 15:16:29,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1030677798] [2024-11-09 15:16:29,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:16:29,176 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 15:16:29,176 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:16:29,178 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) [2024-11-09 15:16:29,180 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 15:16:29,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:16:29,243 INFO L255 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 15:16:29,246 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 15:16:29,287 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:16:29,287 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 15:16:29,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1030677798] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:16:29,288 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 15:16:29,288 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-11-09 15:16:29,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450377429] [2024-11-09 15:16:29,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:16:29,288 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 15:16:29,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:16:29,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 15:16:29,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-09 15:16:29,295 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 32 [2024-11-09 15:16:29,296 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 28 transitions, 80 flow. Second operand has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 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) [2024-11-09 15:16:29,296 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:16:29,296 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 32 [2024-11-09 15:16:29,296 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:16:29,462 INFO L124 PetriNetUnfolderBase]: 193/378 cut-off events. [2024-11-09 15:16:29,464 INFO L125 PetriNetUnfolderBase]: For 70/70 co-relation queries the response was YES. [2024-11-09 15:16:29,465 INFO L83 FinitePrefix]: Finished finitePrefix Result has 848 conditions, 378 events. 193/378 cut-off events. For 70/70 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 1582 event pairs, 23 based on Foata normal form. 14/349 useless extension candidates. Maximal degree in co-relation 839. Up to 94 conditions per place. [2024-11-09 15:16:29,467 INFO L140 encePairwiseOnDemand]: 28/32 looper letters, 53 selfloop transitions, 5 changer transitions 0/65 dead transitions. [2024-11-09 15:16:29,469 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 65 transitions, 277 flow [2024-11-09 15:16:29,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 15:16:29,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-09 15:16:29,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 125 transitions. [2024-11-09 15:16:29,471 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6510416666666666 [2024-11-09 15:16:29,471 INFO L175 Difference]: Start difference. First operand has 35 places, 28 transitions, 80 flow. Second operand 6 states and 125 transitions. [2024-11-09 15:16:29,471 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 65 transitions, 277 flow [2024-11-09 15:16:29,472 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 65 transitions, 275 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 15:16:29,476 INFO L231 Difference]: Finished difference. Result has 38 places, 27 transitions, 84 flow [2024-11-09 15:16:29,476 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=84, PETRI_PLACES=38, PETRI_TRANSITIONS=27} [2024-11-09 15:16:29,477 INFO L277 CegarLoopForPetriNet]: 33 programPoint places, 5 predicate places. [2024-11-09 15:16:29,477 INFO L471 AbstractCegarLoop]: Abstraction has has 38 places, 27 transitions, 84 flow [2024-11-09 15:16:29,478 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 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) [2024-11-09 15:16:29,478 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:16:29,478 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:16:29,493 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-09 15:16:29,679 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 15:16:29,680 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting f2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 12 more)] === [2024-11-09 15:16:29,681 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:16:29,681 INFO L85 PathProgramCache]: Analyzing trace with hash -628016482, now seen corresponding path program 1 times [2024-11-09 15:16:29,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:16:29,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774500808] [2024-11-09 15:16:29,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:16:29,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:16:29,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:16:29,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:16:29,803 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:16:29,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [774500808] [2024-11-09 15:16:29,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [774500808] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:16:29,803 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:16:29,803 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 15:16:29,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926920324] [2024-11-09 15:16:29,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:16:29,804 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 15:16:29,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:16:29,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 15:16:29,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 15:16:29,810 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 32 [2024-11-09 15:16:29,811 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 27 transitions, 84 flow. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 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) [2024-11-09 15:16:29,811 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:16:29,811 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 32 [2024-11-09 15:16:29,811 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:16:29,911 INFO L124 PetriNetUnfolderBase]: 303/592 cut-off events. [2024-11-09 15:16:29,911 INFO L125 PetriNetUnfolderBase]: For 414/424 co-relation queries the response was YES. [2024-11-09 15:16:29,912 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1408 conditions, 592 events. 303/592 cut-off events. For 414/424 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 2625 event pairs, 189 based on Foata normal form. 18/547 useless extension candidates. Maximal degree in co-relation 1399. Up to 387 conditions per place. [2024-11-09 15:16:29,915 INFO L140 encePairwiseOnDemand]: 27/32 looper letters, 39 selfloop transitions, 3 changer transitions 0/48 dead transitions. [2024-11-09 15:16:29,915 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 48 transitions, 256 flow [2024-11-09 15:16:29,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 15:16:29,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 15:16:29,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 82 transitions. [2024-11-09 15:16:29,916 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.640625 [2024-11-09 15:16:29,916 INFO L175 Difference]: Start difference. First operand has 38 places, 27 transitions, 84 flow. Second operand 4 states and 82 transitions. [2024-11-09 15:16:29,916 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 48 transitions, 256 flow [2024-11-09 15:16:29,917 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 48 transitions, 229 flow, removed 3 selfloop flow, removed 4 redundant places. [2024-11-09 15:16:29,918 INFO L231 Difference]: Finished difference. Result has 39 places, 29 transitions, 97 flow [2024-11-09 15:16:29,918 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=75, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=97, PETRI_PLACES=39, PETRI_TRANSITIONS=29} [2024-11-09 15:16:29,918 INFO L277 CegarLoopForPetriNet]: 33 programPoint places, 6 predicate places. [2024-11-09 15:16:29,918 INFO L471 AbstractCegarLoop]: Abstraction has has 39 places, 29 transitions, 97 flow [2024-11-09 15:16:29,919 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 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) [2024-11-09 15:16:29,919 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:16:29,919 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:16:29,919 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 15:16:29,919 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting f1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 12 more)] === [2024-11-09 15:16:29,922 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:16:29,922 INFO L85 PathProgramCache]: Analyzing trace with hash 828474346, now seen corresponding path program 1 times [2024-11-09 15:16:29,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:16:29,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070946988] [2024-11-09 15:16:29,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:16:29,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:16:29,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:16:29,987 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:16:29,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:16:29,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070946988] [2024-11-09 15:16:29,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1070946988] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 15:16:29,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [168458805] [2024-11-09 15:16:29,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:16:29,989 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 15:16:29,989 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:16:29,993 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) [2024-11-09 15:16:29,994 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 15:16:30,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:16:30,046 INFO L255 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 15:16:30,046 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 15:16:30,069 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:16:30,070 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 15:16:30,104 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:16:30,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [168458805] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 15:16:30,106 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 15:16:30,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-11-09 15:16:30,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996538204] [2024-11-09 15:16:30,107 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 15:16:30,107 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 15:16:30,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:16:30,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 15:16:30,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-09 15:16:30,120 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 32 [2024-11-09 15:16:30,121 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 29 transitions, 97 flow. Second operand has 12 states, 12 states have (on average 12.333333333333334) internal successors, (148), 12 states have internal predecessors, (148), 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) [2024-11-09 15:16:30,121 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:16:30,121 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 32 [2024-11-09 15:16:30,121 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:16:30,351 INFO L124 PetriNetUnfolderBase]: 568/1106 cut-off events. [2024-11-09 15:16:30,352 INFO L125 PetriNetUnfolderBase]: For 712/776 co-relation queries the response was YES. [2024-11-09 15:16:30,353 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2764 conditions, 1106 events. 568/1106 cut-off events. For 712/776 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 5527 event pairs, 151 based on Foata normal form. 60/1159 useless extension candidates. Maximal degree in co-relation 2754. Up to 315 conditions per place. [2024-11-09 15:16:30,357 INFO L140 encePairwiseOnDemand]: 28/32 looper letters, 115 selfloop transitions, 9 changer transitions 0/131 dead transitions. [2024-11-09 15:16:30,357 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 131 transitions, 699 flow [2024-11-09 15:16:30,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-09 15:16:30,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-09 15:16:30,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 219 transitions. [2024-11-09 15:16:30,359 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.684375 [2024-11-09 15:16:30,359 INFO L175 Difference]: Start difference. First operand has 39 places, 29 transitions, 97 flow. Second operand 10 states and 219 transitions. [2024-11-09 15:16:30,359 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 131 transitions, 699 flow [2024-11-09 15:16:30,361 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 131 transitions, 681 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 15:16:30,362 INFO L231 Difference]: Finished difference. Result has 50 places, 35 transitions, 159 flow [2024-11-09 15:16:30,362 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=95, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=159, PETRI_PLACES=50, PETRI_TRANSITIONS=35} [2024-11-09 15:16:30,362 INFO L277 CegarLoopForPetriNet]: 33 programPoint places, 17 predicate places. [2024-11-09 15:16:30,363 INFO L471 AbstractCegarLoop]: Abstraction has has 50 places, 35 transitions, 159 flow [2024-11-09 15:16:30,363 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 12.333333333333334) internal successors, (148), 12 states have internal predecessors, (148), 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) [2024-11-09 15:16:30,363 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:16:30,363 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:16:30,376 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-09 15:16:30,567 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,SelfDestructingSolverStorable5 [2024-11-09 15:16:30,568 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting f2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 12 more)] === [2024-11-09 15:16:30,569 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:16:30,569 INFO L85 PathProgramCache]: Analyzing trace with hash -361161248, now seen corresponding path program 1 times [2024-11-09 15:16:30,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:16:30,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986559760] [2024-11-09 15:16:30,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:16:30,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:16:30,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:16:30,612 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:16:30,612 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:16:30,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1986559760] [2024-11-09 15:16:30,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1986559760] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 15:16:30,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [659193469] [2024-11-09 15:16:30,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:16:30,613 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 15:16:30,613 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:16:30,614 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) [2024-11-09 15:16:30,615 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-09 15:16:30,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:16:30,657 INFO L255 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 15:16:30,658 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 15:16:30,674 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:16:30,675 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 15:16:30,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [659193469] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:16:30,675 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 15:16:30,675 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-11-09 15:16:30,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892215523] [2024-11-09 15:16:30,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:16:30,676 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 15:16:30,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:16:30,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 15:16:30,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-09 15:16:30,682 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 32 [2024-11-09 15:16:30,682 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 35 transitions, 159 flow. Second operand has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 6 states have internal predecessors, (77), 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) [2024-11-09 15:16:30,682 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:16:30,682 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 32 [2024-11-09 15:16:30,682 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:16:30,860 INFO L124 PetriNetUnfolderBase]: 595/1154 cut-off events. [2024-11-09 15:16:30,861 INFO L125 PetriNetUnfolderBase]: For 1244/1258 co-relation queries the response was YES. [2024-11-09 15:16:30,863 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3185 conditions, 1154 events. 595/1154 cut-off events. For 1244/1258 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 5735 event pairs, 156 based on Foata normal form. 39/1145 useless extension candidates. Maximal degree in co-relation 3172. Up to 317 conditions per place. [2024-11-09 15:16:30,867 INFO L140 encePairwiseOnDemand]: 28/32 looper letters, 84 selfloop transitions, 5 changer transitions 0/95 dead transitions. [2024-11-09 15:16:30,868 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 95 transitions, 695 flow [2024-11-09 15:16:30,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 15:16:30,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-09 15:16:30,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 116 transitions. [2024-11-09 15:16:30,869 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6041666666666666 [2024-11-09 15:16:30,869 INFO L175 Difference]: Start difference. First operand has 50 places, 35 transitions, 159 flow. Second operand 6 states and 116 transitions. [2024-11-09 15:16:30,869 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 95 transitions, 695 flow [2024-11-09 15:16:30,872 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 95 transitions, 645 flow, removed 15 selfloop flow, removed 2 redundant places. [2024-11-09 15:16:30,873 INFO L231 Difference]: Finished difference. Result has 52 places, 34 transitions, 155 flow [2024-11-09 15:16:30,873 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=145, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=155, PETRI_PLACES=52, PETRI_TRANSITIONS=34} [2024-11-09 15:16:30,874 INFO L277 CegarLoopForPetriNet]: 33 programPoint places, 19 predicate places. [2024-11-09 15:16:30,874 INFO L471 AbstractCegarLoop]: Abstraction has has 52 places, 34 transitions, 155 flow [2024-11-09 15:16:30,874 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 6 states have internal predecessors, (77), 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) [2024-11-09 15:16:30,874 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:16:30,874 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:16:30,888 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-09 15:16:31,075 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 15:16:31,076 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting f2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 12 more)] === [2024-11-09 15:16:31,076 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:16:31,076 INFO L85 PathProgramCache]: Analyzing trace with hash 1688903515, now seen corresponding path program 1 times [2024-11-09 15:16:31,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:16:31,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325951593] [2024-11-09 15:16:31,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:16:31,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:16:31,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:16:31,122 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:16:31,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:16:31,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325951593] [2024-11-09 15:16:31,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [325951593] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 15:16:31,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [701316824] [2024-11-09 15:16:31,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:16:31,124 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 15:16:31,124 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:16:31,125 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) [2024-11-09 15:16:31,126 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-09 15:16:31,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:16:31,170 INFO L255 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 15:16:31,170 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 15:16:31,187 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:16:31,187 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 15:16:31,219 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:16:31,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [701316824] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 15:16:31,220 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 15:16:31,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-11-09 15:16:31,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617129288] [2024-11-09 15:16:31,220 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 15:16:31,220 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 15:16:31,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:16:31,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 15:16:31,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-09 15:16:31,232 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 32 [2024-11-09 15:16:31,233 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 34 transitions, 155 flow. Second operand has 12 states, 12 states have (on average 12.583333333333334) internal successors, (151), 12 states have internal predecessors, (151), 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) [2024-11-09 15:16:31,233 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:16:31,233 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 32 [2024-11-09 15:16:31,233 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:16:31,507 INFO L124 PetriNetUnfolderBase]: 1099/2138 cut-off events. [2024-11-09 15:16:31,508 INFO L125 PetriNetUnfolderBase]: For 2551/2577 co-relation queries the response was YES. [2024-11-09 15:16:31,510 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6036 conditions, 2138 events. 1099/2138 cut-off events. For 2551/2577 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 11667 event pairs, 372 based on Foata normal form. 117/2246 useless extension candidates. Maximal degree in co-relation 6022. Up to 736 conditions per place. [2024-11-09 15:16:31,516 INFO L140 encePairwiseOnDemand]: 28/32 looper letters, 149 selfloop transitions, 9 changer transitions 0/164 dead transitions. [2024-11-09 15:16:31,516 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 164 transitions, 1155 flow [2024-11-09 15:16:31,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-09 15:16:31,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-09 15:16:31,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 199 transitions. [2024-11-09 15:16:31,517 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.621875 [2024-11-09 15:16:31,517 INFO L175 Difference]: Start difference. First operand has 52 places, 34 transitions, 155 flow. Second operand 10 states and 199 transitions. [2024-11-09 15:16:31,517 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 164 transitions, 1155 flow [2024-11-09 15:16:31,520 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 164 transitions, 1140 flow, removed 4 selfloop flow, removed 4 redundant places. [2024-11-09 15:16:31,522 INFO L231 Difference]: Finished difference. Result has 60 places, 40 transitions, 210 flow [2024-11-09 15:16:31,522 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=146, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=210, PETRI_PLACES=60, PETRI_TRANSITIONS=40} [2024-11-09 15:16:31,522 INFO L277 CegarLoopForPetriNet]: 33 programPoint places, 27 predicate places. [2024-11-09 15:16:31,522 INFO L471 AbstractCegarLoop]: Abstraction has has 60 places, 40 transitions, 210 flow [2024-11-09 15:16:31,523 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 12.583333333333334) internal successors, (151), 12 states have internal predecessors, (151), 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) [2024-11-09 15:16:31,523 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:16:31,523 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 4, 1, 1, 1, 1, 1, 1] [2024-11-09 15:16:31,540 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-09 15:16:31,723 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 15:16:31,724 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting f1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 12 more)] === [2024-11-09 15:16:31,725 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:16:31,725 INFO L85 PathProgramCache]: Analyzing trace with hash -561828959, now seen corresponding path program 2 times [2024-11-09 15:16:31,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:16:31,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1306682590] [2024-11-09 15:16:31,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:16:31,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:16:31,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:16:31,817 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:16:31,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:16:31,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1306682590] [2024-11-09 15:16:31,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1306682590] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 15:16:31,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [478885463] [2024-11-09 15:16:31,818 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 15:16:31,818 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 15:16:31,819 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:16:31,821 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) [2024-11-09 15:16:31,828 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-09 15:16:31,873 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-09 15:16:31,873 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 15:16:31,873 INFO L255 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-09 15:16:31,874 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 15:16:31,936 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-09 15:16:31,936 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 15:16:32,009 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-09 15:16:32,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [478885463] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 15:16:32,010 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 15:16:32,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 5, 5] total 21 [2024-11-09 15:16:32,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028420977] [2024-11-09 15:16:32,010 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 15:16:32,010 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-09 15:16:32,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:16:32,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-09 15:16:32,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=386, Unknown=0, NotChecked=0, Total=462 [2024-11-09 15:16:32,056 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 32 [2024-11-09 15:16:32,057 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 40 transitions, 210 flow. Second operand has 22 states, 22 states have (on average 8.5) internal successors, (187), 22 states have internal predecessors, (187), 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) [2024-11-09 15:16:32,057 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:16:32,057 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 32 [2024-11-09 15:16:32,057 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:16:33,251 INFO L124 PetriNetUnfolderBase]: 3178/6016 cut-off events. [2024-11-09 15:16:33,251 INFO L125 PetriNetUnfolderBase]: For 10833/10886 co-relation queries the response was YES. [2024-11-09 15:16:33,259 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18310 conditions, 6016 events. 3178/6016 cut-off events. For 10833/10886 co-relation queries the response was YES. Maximal size of possible extension queue 180. Compared 40158 event pairs, 112 based on Foata normal form. 176/6191 useless extension candidates. Maximal degree in co-relation 18294. Up to 911 conditions per place. [2024-11-09 15:16:33,274 INFO L140 encePairwiseOnDemand]: 23/32 looper letters, 541 selfloop transitions, 60 changer transitions 26/631 dead transitions. [2024-11-09 15:16:33,274 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 631 transitions, 4933 flow [2024-11-09 15:16:33,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2024-11-09 15:16:33,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2024-11-09 15:16:33,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 616 transitions. [2024-11-09 15:16:33,277 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.48125 [2024-11-09 15:16:33,277 INFO L175 Difference]: Start difference. First operand has 60 places, 40 transitions, 210 flow. Second operand 40 states and 616 transitions. [2024-11-09 15:16:33,277 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 631 transitions, 4933 flow [2024-11-09 15:16:33,300 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 631 transitions, 4563 flow, removed 111 selfloop flow, removed 2 redundant places. [2024-11-09 15:16:33,305 INFO L231 Difference]: Finished difference. Result has 108 places, 88 transitions, 605 flow [2024-11-09 15:16:33,305 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=200, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=40, PETRI_FLOW=605, PETRI_PLACES=108, PETRI_TRANSITIONS=88} [2024-11-09 15:16:33,306 INFO L277 CegarLoopForPetriNet]: 33 programPoint places, 75 predicate places. [2024-11-09 15:16:33,307 INFO L471 AbstractCegarLoop]: Abstraction has has 108 places, 88 transitions, 605 flow [2024-11-09 15:16:33,307 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 8.5) internal successors, (187), 22 states have internal predecessors, (187), 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) [2024-11-09 15:16:33,307 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:16:33,307 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:16:33,320 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-09 15:16:33,512 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 15:16:33,512 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting f2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 12 more)] === [2024-11-09 15:16:33,512 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:16:33,512 INFO L85 PathProgramCache]: Analyzing trace with hash 1966708957, now seen corresponding path program 2 times [2024-11-09 15:16:33,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:16:33,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128818371] [2024-11-09 15:16:33,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:16:33,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:16:33,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:16:33,634 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:16:33,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:16:33,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2128818371] [2024-11-09 15:16:33,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2128818371] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 15:16:33,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [463199251] [2024-11-09 15:16:33,635 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 15:16:33,635 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 15:16:33,635 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:16:33,638 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 15:16:33,639 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-09 15:16:33,714 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-09 15:16:33,715 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 15:16:33,715 INFO L255 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-09 15:16:33,716 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 15:16:33,845 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-09 15:16:33,845 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 15:16:33,902 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-09 15:16:33,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [463199251] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 15:16:33,905 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 15:16:33,905 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 5, 5] total 17 [2024-11-09 15:16:33,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41588382] [2024-11-09 15:16:33,906 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 15:16:33,906 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-09 15:16:33,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:16:33,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-09 15:16:33,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=247, Unknown=0, NotChecked=0, Total=306 [2024-11-09 15:16:33,959 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 32 [2024-11-09 15:16:33,960 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 88 transitions, 605 flow. Second operand has 18 states, 18 states have (on average 9.0) internal successors, (162), 18 states have internal predecessors, (162), 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) [2024-11-09 15:16:33,960 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:16:33,960 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 32 [2024-11-09 15:16:33,960 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:16:35,479 INFO L124 PetriNetUnfolderBase]: 4753/8742 cut-off events. [2024-11-09 15:16:35,479 INFO L125 PetriNetUnfolderBase]: For 35445/35479 co-relation queries the response was YES. [2024-11-09 15:16:35,497 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32850 conditions, 8742 events. 4753/8742 cut-off events. For 35445/35479 co-relation queries the response was YES. Maximal size of possible extension queue 243. Compared 60234 event pairs, 133 based on Foata normal form. 276/9016 useless extension candidates. Maximal degree in co-relation 32821. Up to 1298 conditions per place. [2024-11-09 15:16:35,515 INFO L140 encePairwiseOnDemand]: 23/32 looper letters, 381 selfloop transitions, 31 changer transitions 527/943 dead transitions. [2024-11-09 15:16:35,515 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 943 transitions, 9339 flow [2024-11-09 15:16:35,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2024-11-09 15:16:35,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2024-11-09 15:16:35,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 605 transitions. [2024-11-09 15:16:35,517 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.47265625 [2024-11-09 15:16:35,517 INFO L175 Difference]: Start difference. First operand has 108 places, 88 transitions, 605 flow. Second operand 40 states and 605 transitions. [2024-11-09 15:16:35,517 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 943 transitions, 9339 flow [2024-11-09 15:16:35,674 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 943 transitions, 7890 flow, removed 287 selfloop flow, removed 10 redundant places. [2024-11-09 15:16:35,679 INFO L231 Difference]: Finished difference. Result has 148 places, 76 transitions, 577 flow [2024-11-09 15:16:35,679 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=518, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=40, PETRI_FLOW=577, PETRI_PLACES=148, PETRI_TRANSITIONS=76} [2024-11-09 15:16:35,680 INFO L277 CegarLoopForPetriNet]: 33 programPoint places, 115 predicate places. [2024-11-09 15:16:35,680 INFO L471 AbstractCegarLoop]: Abstraction has has 148 places, 76 transitions, 577 flow [2024-11-09 15:16:35,680 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 9.0) internal successors, (162), 18 states have internal predecessors, (162), 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) [2024-11-09 15:16:35,680 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:16:35,680 INFO L204 CegarLoopForPetriNet]: trace histogram [6, 6, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:16:35,694 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-09 15:16:35,881 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 15:16:35,881 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting f1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 12 more)] === [2024-11-09 15:16:35,882 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:16:35,882 INFO L85 PathProgramCache]: Analyzing trace with hash -2035920049, now seen corresponding path program 1 times [2024-11-09 15:16:35,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:16:35,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1311945620] [2024-11-09 15:16:35,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:16:35,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:16:35,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:16:35,992 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:16:35,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:16:35,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1311945620] [2024-11-09 15:16:35,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1311945620] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 15:16:35,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1232352760] [2024-11-09 15:16:35,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:16:35,993 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 15:16:35,993 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:16:35,994 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 15:16:35,995 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-09 15:16:36,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:16:36,038 INFO L255 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-09 15:16:36,039 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 15:16:36,073 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:16:36,073 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 15:16:36,224 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:16:36,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1232352760] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 15:16:36,225 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 15:16:36,225 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 27 [2024-11-09 15:16:36,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103197518] [2024-11-09 15:16:36,225 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 15:16:36,226 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-11-09 15:16:36,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:16:36,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-11-09 15:16:36,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=209, Invalid=547, Unknown=0, NotChecked=0, Total=756 [2024-11-09 15:16:36,252 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 32 [2024-11-09 15:16:36,252 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 148 places, 76 transitions, 577 flow. Second operand has 28 states, 28 states have (on average 12.285714285714286) internal successors, (344), 28 states have internal predecessors, (344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:16:36,252 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:16:36,253 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 32 [2024-11-09 15:16:36,253 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:16:37,406 INFO L124 PetriNetUnfolderBase]: 3805/7537 cut-off events. [2024-11-09 15:16:37,406 INFO L125 PetriNetUnfolderBase]: For 49362/49441 co-relation queries the response was YES. [2024-11-09 15:16:37,428 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31789 conditions, 7537 events. 3805/7537 cut-off events. For 49362/49441 co-relation queries the response was YES. Maximal size of possible extension queue 119. Compared 50570 event pairs, 395 based on Foata normal form. 266/7791 useless extension candidates. Maximal degree in co-relation 31749. Up to 1210 conditions per place. [2024-11-09 15:16:37,485 INFO L140 encePairwiseOnDemand]: 28/32 looper letters, 740 selfloop transitions, 50 changer transitions 96/896 dead transitions. [2024-11-09 15:16:37,485 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 149 places, 896 transitions, 9205 flow [2024-11-09 15:16:37,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-11-09 15:16:37,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2024-11-09 15:16:37,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 575 transitions. [2024-11-09 15:16:37,492 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6911057692307693 [2024-11-09 15:16:37,493 INFO L175 Difference]: Start difference. First operand has 148 places, 76 transitions, 577 flow. Second operand 26 states and 575 transitions. [2024-11-09 15:16:37,493 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 149 places, 896 transitions, 9205 flow [2024-11-09 15:16:37,658 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 896 transitions, 7744 flow, removed 280 selfloop flow, removed 14 redundant places. [2024-11-09 15:16:37,671 INFO L231 Difference]: Finished difference. Result has 142 places, 104 transitions, 854 flow [2024-11-09 15:16:37,674 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=508, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=26, PETRI_FLOW=854, PETRI_PLACES=142, PETRI_TRANSITIONS=104} [2024-11-09 15:16:37,675 INFO L277 CegarLoopForPetriNet]: 33 programPoint places, 109 predicate places. [2024-11-09 15:16:37,675 INFO L471 AbstractCegarLoop]: Abstraction has has 142 places, 104 transitions, 854 flow [2024-11-09 15:16:37,675 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 12.285714285714286) internal successors, (344), 28 states have internal predecessors, (344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:16:37,675 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:16:37,675 INFO L204 CegarLoopForPetriNet]: trace histogram [6, 6, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:16:37,688 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-09 15:16:37,876 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 15:16:37,876 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting f2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 12 more)] === [2024-11-09 15:16:37,877 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:16:37,877 INFO L85 PathProgramCache]: Analyzing trace with hash -770884302, now seen corresponding path program 1 times [2024-11-09 15:16:37,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:16:37,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918727726] [2024-11-09 15:16:37,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:16:37,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:16:37,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:16:38,030 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:16:38,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:16:38,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [918727726] [2024-11-09 15:16:38,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [918727726] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 15:16:38,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1333193662] [2024-11-09 15:16:38,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:16:38,031 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 15:16:38,031 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:16:38,033 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 15:16:38,035 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-09 15:16:38,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:16:38,085 INFO L255 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-09 15:16:38,087 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 15:16:38,128 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:16:38,128 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 15:16:38,278 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:16:38,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1333193662] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 15:16:38,279 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 15:16:38,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 27 [2024-11-09 15:16:38,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894505345] [2024-11-09 15:16:38,279 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 15:16:38,280 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-11-09 15:16:38,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:16:38,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-11-09 15:16:38,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=209, Invalid=547, Unknown=0, NotChecked=0, Total=756 [2024-11-09 15:16:38,298 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 32 [2024-11-09 15:16:38,299 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 104 transitions, 854 flow. Second operand has 28 states, 28 states have (on average 12.285714285714286) internal successors, (344), 28 states have internal predecessors, (344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:16:38,299 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:16:38,299 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 32 [2024-11-09 15:16:38,299 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:16:40,054 INFO L124 PetriNetUnfolderBase]: 7528/15002 cut-off events. [2024-11-09 15:16:40,055 INFO L125 PetriNetUnfolderBase]: For 94148/94218 co-relation queries the response was YES. [2024-11-09 15:16:40,099 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63533 conditions, 15002 events. 7528/15002 cut-off events. For 94148/94218 co-relation queries the response was YES. Maximal size of possible extension queue 227. Compared 111234 event pairs, 1090 based on Foata normal form. 651/15641 useless extension candidates. Maximal degree in co-relation 63491. Up to 2400 conditions per place. [2024-11-09 15:16:40,141 INFO L140 encePairwiseOnDemand]: 28/32 looper letters, 1452 selfloop transitions, 50 changer transitions 24/1536 dead transitions. [2024-11-09 15:16:40,141 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 167 places, 1536 transitions, 17182 flow [2024-11-09 15:16:40,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-11-09 15:16:40,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2024-11-09 15:16:40,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 515 transitions. [2024-11-09 15:16:40,145 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6189903846153846 [2024-11-09 15:16:40,145 INFO L175 Difference]: Start difference. First operand has 142 places, 104 transitions, 854 flow. Second operand 26 states and 515 transitions. [2024-11-09 15:16:40,145 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 167 places, 1536 transitions, 17182 flow [2024-11-09 15:16:40,683 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 157 places, 1536 transitions, 15832 flow, removed 175 selfloop flow, removed 10 redundant places. [2024-11-09 15:16:40,692 INFO L231 Difference]: Finished difference. Result has 164 places, 132 transitions, 1146 flow [2024-11-09 15:16:40,692 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=800, PETRI_DIFFERENCE_MINUEND_PLACES=132, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=26, PETRI_FLOW=1146, PETRI_PLACES=164, PETRI_TRANSITIONS=132} [2024-11-09 15:16:40,693 INFO L277 CegarLoopForPetriNet]: 33 programPoint places, 131 predicate places. [2024-11-09 15:16:40,693 INFO L471 AbstractCegarLoop]: Abstraction has has 164 places, 132 transitions, 1146 flow [2024-11-09 15:16:40,693 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 12.285714285714286) internal successors, (344), 28 states have internal predecessors, (344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:16:40,693 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:16:40,693 INFO L204 CegarLoopForPetriNet]: trace histogram [13, 13, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:16:40,706 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-09 15:16:40,894 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-09 15:16:40,895 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting f1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 12 more)] === [2024-11-09 15:16:40,895 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:16:40,895 INFO L85 PathProgramCache]: Analyzing trace with hash -283193284, now seen corresponding path program 2 times [2024-11-09 15:16:40,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:16:40,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895259934] [2024-11-09 15:16:40,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:16:40,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:16:40,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:16:41,301 INFO L134 CoverageAnalysis]: Checked inductivity of 234 backedges. 0 proven. 234 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:16:41,301 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:16:41,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [895259934] [2024-11-09 15:16:41,301 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [895259934] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 15:16:41,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1973194689] [2024-11-09 15:16:41,301 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 15:16:41,302 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 15:16:41,302 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:16:41,303 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 15:16:41,304 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-09 15:16:41,348 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-09 15:16:41,348 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 15:16:41,349 INFO L255 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-09 15:16:41,350 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 15:16:41,483 INFO L134 CoverageAnalysis]: Checked inductivity of 234 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2024-11-09 15:16:41,483 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 15:16:41,590 INFO L134 CoverageAnalysis]: Checked inductivity of 234 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2024-11-09 15:16:41,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1973194689] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 15:16:41,591 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 15:16:41,591 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 5, 5] total 33 [2024-11-09 15:16:41,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034116432] [2024-11-09 15:16:41,591 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 15:16:41,591 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-11-09 15:16:41,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:16:41,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-11-09 15:16:41,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=235, Invalid=887, Unknown=0, NotChecked=0, Total=1122 [2024-11-09 15:16:41,650 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 32 [2024-11-09 15:16:41,650 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 164 places, 132 transitions, 1146 flow. Second operand has 34 states, 34 states have (on average 8.705882352941176) internal successors, (296), 34 states have internal predecessors, (296), 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) [2024-11-09 15:16:41,650 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:16:41,650 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 32 [2024-11-09 15:16:41,650 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:16:45,893 INFO L124 PetriNetUnfolderBase]: 7943/15664 cut-off events. [2024-11-09 15:16:45,893 INFO L125 PetriNetUnfolderBase]: For 99568/99654 co-relation queries the response was YES. [2024-11-09 15:16:45,944 INFO L83 FinitePrefix]: Finished finitePrefix Result has 69937 conditions, 15664 events. 7943/15664 cut-off events. For 99568/99654 co-relation queries the response was YES. Maximal size of possible extension queue 232. Compared 115837 event pairs, 158 based on Foata normal form. 162/15824 useless extension candidates. Maximal degree in co-relation 69887. Up to 2536 conditions per place. [2024-11-09 15:16:45,977 INFO L140 encePairwiseOnDemand]: 23/32 looper letters, 1148 selfloop transitions, 43 changer transitions 1129/2324 dead transitions. [2024-11-09 15:16:45,977 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 274 places, 2324 transitions, 24914 flow [2024-11-09 15:16:45,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 112 states. [2024-11-09 15:16:45,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2024-11-09 15:16:45,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 1447 transitions. [2024-11-09 15:16:45,981 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4037388392857143 [2024-11-09 15:16:45,981 INFO L175 Difference]: Start difference. First operand has 164 places, 132 transitions, 1146 flow. Second operand 112 states and 1447 transitions. [2024-11-09 15:16:45,981 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 274 places, 2324 transitions, 24914 flow [2024-11-09 15:16:46,324 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 250 places, 2324 transitions, 22862 flow, removed 282 selfloop flow, removed 24 redundant places. [2024-11-09 15:16:46,336 INFO L231 Difference]: Finished difference. Result has 254 places, 87 transitions, 823 flow [2024-11-09 15:16:46,336 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=996, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=112, PETRI_FLOW=823, PETRI_PLACES=254, PETRI_TRANSITIONS=87} [2024-11-09 15:16:46,337 INFO L277 CegarLoopForPetriNet]: 33 programPoint places, 221 predicate places. [2024-11-09 15:16:46,337 INFO L471 AbstractCegarLoop]: Abstraction has has 254 places, 87 transitions, 823 flow [2024-11-09 15:16:46,337 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 8.705882352941176) internal successors, (296), 34 states have internal predecessors, (296), 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) [2024-11-09 15:16:46,337 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:16:46,337 INFO L204 CegarLoopForPetriNet]: trace histogram [13, 13, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:16:46,349 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-09 15:16:46,540 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-09 15:16:46,540 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting f2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 12 more)] === [2024-11-09 15:16:46,540 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:16:46,540 INFO L85 PathProgramCache]: Analyzing trace with hash -155937306, now seen corresponding path program 2 times [2024-11-09 15:16:46,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:16:46,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323524857] [2024-11-09 15:16:46,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:16:46,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:16:46,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:16:46,916 INFO L134 CoverageAnalysis]: Checked inductivity of 234 backedges. 0 proven. 234 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:16:46,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:16:46,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323524857] [2024-11-09 15:16:46,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [323524857] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 15:16:46,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [473189368] [2024-11-09 15:16:46,917 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 15:16:46,917 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 15:16:46,917 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:16:46,918 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 15:16:46,919 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-09 15:16:46,970 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-09 15:16:46,970 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 15:16:46,974 INFO L255 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-09 15:16:46,977 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 15:16:47,105 INFO L134 CoverageAnalysis]: Checked inductivity of 234 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2024-11-09 15:16:47,105 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 15:16:47,236 INFO L134 CoverageAnalysis]: Checked inductivity of 234 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2024-11-09 15:16:47,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [473189368] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 15:16:47,237 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 15:16:47,237 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 5, 5] total 37 [2024-11-09 15:16:47,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372805969] [2024-11-09 15:16:47,237 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 15:16:47,237 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2024-11-09 15:16:47,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:16:47,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2024-11-09 15:16:47,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=260, Invalid=1146, Unknown=0, NotChecked=0, Total=1406 [2024-11-09 15:16:47,304 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 32 [2024-11-09 15:16:47,305 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 254 places, 87 transitions, 823 flow. Second operand has 38 states, 38 states have (on average 8.68421052631579) internal successors, (330), 38 states have internal predecessors, (330), 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) [2024-11-09 15:16:47,305 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:16:47,305 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 32 [2024-11-09 15:16:47,305 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:16:48,929 INFO L124 PetriNetUnfolderBase]: 4164/8514 cut-off events. [2024-11-09 15:16:48,929 INFO L125 PetriNetUnfolderBase]: For 68108/68108 co-relation queries the response was YES. [2024-11-09 15:16:48,949 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37182 conditions, 8514 events. 4164/8514 cut-off events. For 68108/68108 co-relation queries the response was YES. Maximal size of possible extension queue 128. Compared 56750 event pairs, 2 based on Foata normal form. 200/8713 useless extension candidates. Maximal degree in co-relation 37147. Up to 1902 conditions per place. [2024-11-09 15:16:48,955 INFO L140 encePairwiseOnDemand]: 24/32 looper letters, 0 selfloop transitions, 0 changer transitions 1355/1355 dead transitions. [2024-11-09 15:16:48,955 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 194 places, 1355 transitions, 17619 flow [2024-11-09 15:16:48,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2024-11-09 15:16:48,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2024-11-09 15:16:48,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 461 transitions. [2024-11-09 15:16:48,956 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.42371323529411764 [2024-11-09 15:16:48,956 INFO L175 Difference]: Start difference. First operand has 254 places, 87 transitions, 823 flow. Second operand 34 states and 461 transitions. [2024-11-09 15:16:48,956 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 194 places, 1355 transitions, 17619 flow [2024-11-09 15:16:49,038 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 1355 transitions, 9467 flow, removed 2569 selfloop flow, removed 59 redundant places. [2024-11-09 15:16:49,042 INFO L231 Difference]: Finished difference. Result has 135 places, 0 transitions, 0 flow [2024-11-09 15:16:49,042 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=405, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=34, PETRI_FLOW=0, PETRI_PLACES=135, PETRI_TRANSITIONS=0} [2024-11-09 15:16:49,043 INFO L277 CegarLoopForPetriNet]: 33 programPoint places, 102 predicate places. [2024-11-09 15:16:49,043 INFO L471 AbstractCegarLoop]: Abstraction has has 135 places, 0 transitions, 0 flow [2024-11-09 15:16:49,043 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 8.68421052631579) internal successors, (330), 38 states have internal predecessors, (330), 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) [2024-11-09 15:16:49,045 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (13 of 14 remaining) [2024-11-09 15:16:49,045 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 14 remaining) [2024-11-09 15:16:49,045 INFO L782 garLoopResultBuilder]: Registering result SAFE for location f1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 14 remaining) [2024-11-09 15:16:49,046 INFO L782 garLoopResultBuilder]: Registering result SAFE for location f1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 14 remaining) [2024-11-09 15:16:49,046 INFO L782 garLoopResultBuilder]: Registering result SAFE for location f2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 14 remaining) [2024-11-09 15:16:49,046 INFO L782 garLoopResultBuilder]: Registering result SAFE for location f2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 14 remaining) [2024-11-09 15:16:49,046 INFO L782 garLoopResultBuilder]: Registering result SAFE for location f2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 14 remaining) [2024-11-09 15:16:49,046 INFO L782 garLoopResultBuilder]: Registering result SAFE for location f2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 14 remaining) [2024-11-09 15:16:49,046 INFO L782 garLoopResultBuilder]: Registering result SAFE for location f1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 14 remaining) [2024-11-09 15:16:49,046 INFO L782 garLoopResultBuilder]: Registering result SAFE for location f1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 14 remaining) [2024-11-09 15:16:49,046 INFO L782 garLoopResultBuilder]: Registering result SAFE for location f2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 14 remaining) [2024-11-09 15:16:49,046 INFO L782 garLoopResultBuilder]: Registering result SAFE for location f2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 14 remaining) [2024-11-09 15:16:49,046 INFO L782 garLoopResultBuilder]: Registering result SAFE for location f2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 14 remaining) [2024-11-09 15:16:49,046 INFO L782 garLoopResultBuilder]: Registering result SAFE for location f2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 14 remaining) [2024-11-09 15:16:49,058 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-11-09 15:16:49,247 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-09 15:16:49,247 INFO L407 BasicCegarLoop]: Path program histogram: [2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-09 15:16:49,251 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-09 15:16:49,252 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 15:16:49,255 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 03:16:49 BasicIcfg [2024-11-09 15:16:49,255 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 15:16:49,255 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 15:16:49,255 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 15:16:49,255 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 15:16:49,256 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 03:16:28" (3/4) ... [2024-11-09 15:16:49,256 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-09 15:16:49,258 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure f1 [2024-11-09 15:16:49,259 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure f2 [2024-11-09 15:16:49,261 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 36 nodes and edges [2024-11-09 15:16:49,261 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2024-11-09 15:16:49,261 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-09 15:16:49,261 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-09 15:16:49,311 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-09 15:16:49,312 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-09 15:16:49,312 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 15:16:49,312 INFO L158 Benchmark]: Toolchain (without parser) took 22041.55ms. Allocated memory was 146.8MB in the beginning and 2.9GB in the end (delta: 2.8GB). Free memory was 75.5MB in the beginning and 2.2GB in the end (delta: -2.1GB). Peak memory consumption was 682.1MB. Max. memory is 16.1GB. [2024-11-09 15:16:49,313 INFO L158 Benchmark]: CDTParser took 1.07ms. Allocated memory is still 146.8MB. Free memory is still 112.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 15:16:49,313 INFO L158 Benchmark]: CACSL2BoogieTranslator took 374.11ms. Allocated memory is still 146.8MB. Free memory was 75.5MB in the beginning and 53.1MB in the end (delta: 22.4MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-11-09 15:16:49,313 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.65ms. Allocated memory is still 146.8MB. Free memory was 53.1MB in the beginning and 50.7MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 15:16:49,313 INFO L158 Benchmark]: Boogie Preprocessor took 58.92ms. Allocated memory is still 146.8MB. Free memory was 50.7MB in the beginning and 48.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 15:16:49,313 INFO L158 Benchmark]: RCFGBuilder took 452.94ms. Allocated memory was 146.8MB in the beginning and 234.9MB in the end (delta: 88.1MB). Free memory was 48.6MB in the beginning and 183.9MB in the end (delta: -135.3MB). Peak memory consumption was 19.0MB. Max. memory is 16.1GB. [2024-11-09 15:16:49,314 INFO L158 Benchmark]: TraceAbstraction took 21053.70ms. Allocated memory was 234.9MB in the beginning and 2.9GB in the end (delta: 2.7GB). Free memory was 183.9MB in the beginning and 2.2GB in the end (delta: -2.0GB). Peak memory consumption was 898.0MB. Max. memory is 16.1GB. [2024-11-09 15:16:49,314 INFO L158 Benchmark]: Witness Printer took 57.05ms. Allocated memory is still 2.9GB. Free memory was 2.2GB in the beginning and 2.2GB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-09 15:16:49,315 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.07ms. Allocated memory is still 146.8MB. Free memory is still 112.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 374.11ms. Allocated memory is still 146.8MB. Free memory was 75.5MB in the beginning and 53.1MB in the end (delta: 22.4MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.65ms. Allocated memory is still 146.8MB. Free memory was 53.1MB in the beginning and 50.7MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 58.92ms. Allocated memory is still 146.8MB. Free memory was 50.7MB in the beginning and 48.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 452.94ms. Allocated memory was 146.8MB in the beginning and 234.9MB in the end (delta: 88.1MB). Free memory was 48.6MB in the beginning and 183.9MB in the end (delta: -135.3MB). Peak memory consumption was 19.0MB. Max. memory is 16.1GB. * TraceAbstraction took 21053.70ms. Allocated memory was 234.9MB in the beginning and 2.9GB in the end (delta: 2.7GB). Free memory was 183.9MB in the beginning and 2.2GB in the end (delta: -2.0GB). Peak memory consumption was 898.0MB. Max. memory is 16.1GB. * Witness Printer took 57.05ms. Allocated memory is still 2.9GB. Free memory was 2.2GB in the beginning and 2.2GB 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: 761]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 761]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 767]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 767]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 770]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 770]: 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, 55 locations, 14 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: 21.0s, OverallIterations: 14, TraceHistogramMax: 13, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 14.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 5182 SdHoareTripleChecker+Valid, 3.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 5132 mSDsluCounter, 1513 SdHoareTripleChecker+Invalid, 2.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1490 mSDsCounter, 63 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5238 IncrementalHoareTripleChecker+Invalid, 5301 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 63 mSolverCounterUnsat, 23 mSDtfsCounter, 5238 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 958 GetRequests, 506 SyntacticMatches, 6 SemanticMatches, 446 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10476 ImplicationChecksByTransitivity, 5.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1146occurred in iteration=12, InterpolantAutomatonStates: 324, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 3.0s InterpolantComputationTime, 535 NumberOfCodeBlocks, 439 NumberOfCodeBlocksAsserted, 24 NumberOfCheckSat, 731 ConstructedInterpolants, 0 QuantifiedInterpolants, 1951 SizeOfPredicates, 44 NumberOfNonLiveVariables, 784 ConjunctsInSsa, 74 ConjunctsInUnsatCore, 32 InterpolantComputations, 6 PerfectInterpolantSequences, 932/1880 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 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-09 15:16:49,335 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