./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/pthread-theta/unwind1-100.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 023d838f 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/unwind1-100.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 d866fedd3df666b1282e36d0ae87b17d0a587658c87dddd4d2314d9586432757 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 22:29:37,502 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 22:29:37,570 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-10 22:29:37,590 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 22:29:37,590 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 22:29:37,618 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 22:29:37,618 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 22:29:37,619 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 22:29:37,620 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 22:29:37,624 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 22:29:37,624 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 22:29:37,625 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 22:29:37,625 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 22:29:37,625 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 22:29:37,625 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 22:29:37,625 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 22:29:37,626 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-10 22:29:37,626 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 22:29:37,626 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 22:29:37,626 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 22:29:37,626 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 22:29:37,629 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-10 22:29:37,630 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 22:29:37,630 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-10 22:29:37,630 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 22:29:37,630 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-10 22:29:37,630 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-10 22:29:37,630 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 22:29:37,630 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 22:29:37,631 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 22:29:37,631 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 22:29:37,631 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 22:29:37,631 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-10 22:29:37,631 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 22:29:37,631 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 22:29:37,632 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 22:29:37,632 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 22:29:37,632 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-10 22:29:37,632 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 22:29:37,632 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 22:29:37,632 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 22:29:37,633 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 22:29:37,633 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 22:29:37,633 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 22:29:37,634 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d866fedd3df666b1282e36d0ae87b17d0a587658c87dddd4d2314d9586432757 [2024-11-10 22:29:37,847 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 22:29:37,873 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 22:29:37,876 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 22:29:37,877 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 22:29:37,878 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 22:29:37,880 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-theta/unwind1-100.i [2024-11-10 22:29:39,170 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 22:29:39,357 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 22:29:39,358 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-theta/unwind1-100.i [2024-11-10 22:29:39,372 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8c23066b5/b34a890d31274e59991998de4047539c/FLAG6de5e7844 [2024-11-10 22:29:39,399 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8c23066b5/b34a890d31274e59991998de4047539c [2024-11-10 22:29:39,402 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 22:29:39,404 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 22:29:39,405 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 22:29:39,405 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 22:29:39,409 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 22:29:39,409 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 10:29:39" (1/1) ... [2024-11-10 22:29:39,410 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1bf13e22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:29:39, skipping insertion in model container [2024-11-10 22:29:39,410 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 10:29:39" (1/1) ... [2024-11-10 22:29:39,453 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 22:29:39,714 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 22:29:39,723 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 22:29:39,768 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 22:29:39,803 INFO L204 MainTranslator]: Completed translation [2024-11-10 22:29:39,803 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:29:39 WrapperNode [2024-11-10 22:29:39,803 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 22:29:39,804 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 22:29:39,804 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 22:29:39,804 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 22:29:39,810 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:29:39" (1/1) ... [2024-11-10 22:29:39,820 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:29:39" (1/1) ... [2024-11-10 22:29:39,837 INFO L138 Inliner]: procedures = 169, calls = 11, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 57 [2024-11-10 22:29:39,838 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 22:29:39,838 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 22:29:39,838 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 22:29:39,839 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 22:29:39,846 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:29:39" (1/1) ... [2024-11-10 22:29:39,846 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:29:39" (1/1) ... [2024-11-10 22:29:39,850 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:29:39" (1/1) ... [2024-11-10 22:29:39,865 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]. [2024-11-10 22:29:39,866 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:29:39" (1/1) ... [2024-11-10 22:29:39,866 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:29:39" (1/1) ... [2024-11-10 22:29:39,869 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:29:39" (1/1) ... [2024-11-10 22:29:39,870 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:29:39" (1/1) ... [2024-11-10 22:29:39,871 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:29:39" (1/1) ... [2024-11-10 22:29:39,872 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:29:39" (1/1) ... [2024-11-10 22:29:39,874 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 22:29:39,875 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 22:29:39,875 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 22:29:39,875 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 22:29:39,876 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:29:39" (1/1) ... [2024-11-10 22:29:39,884 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 22:29:39,894 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:29:39,914 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) [2024-11-10 22:29:39,917 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 [2024-11-10 22:29:39,958 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 22:29:39,959 INFO L130 BoogieDeclarations]: Found specification of procedure f1 [2024-11-10 22:29:39,959 INFO L138 BoogieDeclarations]: Found implementation of procedure f1 [2024-11-10 22:29:39,959 INFO L130 BoogieDeclarations]: Found specification of procedure f2 [2024-11-10 22:29:39,959 INFO L138 BoogieDeclarations]: Found implementation of procedure f2 [2024-11-10 22:29:39,959 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-10 22:29:39,959 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 22:29:39,959 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 22:29:39,960 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-10 22:29:40,095 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 22:29:40,098 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 22:29:40,234 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-10 22:29:40,234 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 22:29:40,329 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 22:29:40,329 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 22:29:40,329 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 10:29:40 BoogieIcfgContainer [2024-11-10 22:29:40,329 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 22:29:40,331 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 22:29:40,331 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 22:29:40,334 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 22:29:40,338 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 10:29:39" (1/3) ... [2024-11-10 22:29:40,339 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@566c7b71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 10:29:40, skipping insertion in model container [2024-11-10 22:29:40,340 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:29:39" (2/3) ... [2024-11-10 22:29:40,340 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@566c7b71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 10:29:40, skipping insertion in model container [2024-11-10 22:29:40,340 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 10:29:40" (3/3) ... [2024-11-10 22:29:40,341 INFO L112 eAbstractionObserver]: Analyzing ICFG unwind1-100.i [2024-11-10 22:29:40,355 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 22:29:40,356 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-11-10 22:29:40,356 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-10 22:29:40,400 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-10 22:29:40,428 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 34 places, 30 transitions, 74 flow [2024-11-10 22:29:40,451 INFO L124 PetriNetUnfolderBase]: 3/28 cut-off events. [2024-11-10 22:29:40,451 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-10 22:29:40,454 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37 conditions, 28 events. 3/28 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 55 event pairs, 0 based on Foata normal form. 0/21 useless extension candidates. Maximal degree in co-relation 25. Up to 2 conditions per place. [2024-11-10 22:29:40,454 INFO L82 GeneralOperation]: Start removeDead. Operand has 34 places, 30 transitions, 74 flow [2024-11-10 22:29:40,456 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 30 places, 26 transitions, 61 flow [2024-11-10 22:29:40,463 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 22:29:40,469 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;@659a3298, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 22:29:40,469 INFO L334 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2024-11-10 22:29:40,473 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-10 22:29:40,474 INFO L124 PetriNetUnfolderBase]: 0/11 cut-off events. [2024-11-10 22:29:40,474 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 22:29:40,474 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:29:40,474 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-11-10 22:29:40,475 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting f1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2024-11-10 22:29:40,481 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:29:40,481 INFO L85 PathProgramCache]: Analyzing trace with hash 188036881, now seen corresponding path program 1 times [2024-11-10 22:29:40,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:29:40,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841364721] [2024-11-10 22:29:40,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:29:40,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:29:40,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:29:40,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:29:40,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:29:40,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1841364721] [2024-11-10 22:29:40,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1841364721] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:29:40,752 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:29:40,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-10 22:29:40,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857387645] [2024-11-10 22:29:40,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:29:40,760 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 22:29:40,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:29:40,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 22:29:40,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 22:29:40,792 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 30 [2024-11-10 22:29:40,794 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 26 transitions, 61 flow. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 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) [2024-11-10 22:29:40,794 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:29:40,794 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 30 [2024-11-10 22:29:40,795 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:29:40,882 INFO L124 PetriNetUnfolderBase]: 103/234 cut-off events. [2024-11-10 22:29:40,882 INFO L125 PetriNetUnfolderBase]: For 10/10 co-relation queries the response was YES. [2024-11-10 22:29:40,886 INFO L83 FinitePrefix]: Finished finitePrefix Result has 436 conditions, 234 events. 103/234 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 1045 event pairs, 78 based on Foata normal form. 25/226 useless extension candidates. Maximal degree in co-relation 406. Up to 178 conditions per place. [2024-11-10 22:29:40,889 INFO L140 encePairwiseOnDemand]: 27/30 looper letters, 16 selfloop transitions, 1 changer transitions 0/24 dead transitions. [2024-11-10 22:29:40,889 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 24 transitions, 91 flow [2024-11-10 22:29:40,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 22:29:40,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 22:29:40,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 46 transitions. [2024-11-10 22:29:40,899 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5111111111111111 [2024-11-10 22:29:40,901 INFO L175 Difference]: Start difference. First operand has 30 places, 26 transitions, 61 flow. Second operand 3 states and 46 transitions. [2024-11-10 22:29:40,902 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 24 transitions, 91 flow [2024-11-10 22:29:40,904 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 24 transitions, 86 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-10 22:29:40,906 INFO L231 Difference]: Finished difference. Result has 28 places, 24 transitions, 54 flow [2024-11-10 22:29:40,909 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=52, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=54, PETRI_PLACES=28, PETRI_TRANSITIONS=24} [2024-11-10 22:29:40,913 INFO L277 CegarLoopForPetriNet]: 30 programPoint places, -2 predicate places. [2024-11-10 22:29:40,914 INFO L471 AbstractCegarLoop]: Abstraction has has 28 places, 24 transitions, 54 flow [2024-11-10 22:29:40,914 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 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) [2024-11-10 22:29:40,914 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:29:40,914 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-10 22:29:40,915 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 22:29:40,915 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting f1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2024-11-10 22:29:40,915 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:29:40,915 INFO L85 PathProgramCache]: Analyzing trace with hash 1534176168, now seen corresponding path program 1 times [2024-11-10 22:29:40,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:29:40,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248328990] [2024-11-10 22:29:40,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:29:40,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:29:40,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:29:40,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:29:40,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:29:40,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248328990] [2024-11-10 22:29:40,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [248328990] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:29:40,959 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:29:40,959 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-10 22:29:40,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145592003] [2024-11-10 22:29:40,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:29:40,964 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 22:29:40,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:29:40,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 22:29:40,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 22:29:40,972 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 30 [2024-11-10 22:29:40,972 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 24 transitions, 54 flow. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 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) [2024-11-10 22:29:40,973 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:29:40,973 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 30 [2024-11-10 22:29:40,973 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:29:41,030 INFO L124 PetriNetUnfolderBase]: 89/200 cut-off events. [2024-11-10 22:29:41,031 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 22:29:41,032 INFO L83 FinitePrefix]: Finished finitePrefix Result has 371 conditions, 200 events. 89/200 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 837 event pairs, 66 based on Foata normal form. 8/179 useless extension candidates. Maximal degree in co-relation 365. Up to 154 conditions per place. [2024-11-10 22:29:41,034 INFO L140 encePairwiseOnDemand]: 28/30 looper letters, 14 selfloop transitions, 1 changer transitions 1/23 dead transitions. [2024-11-10 22:29:41,034 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 23 transitions, 84 flow [2024-11-10 22:29:41,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 22:29:41,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 22:29:41,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 44 transitions. [2024-11-10 22:29:41,036 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4888888888888889 [2024-11-10 22:29:41,037 INFO L175 Difference]: Start difference. First operand has 28 places, 24 transitions, 54 flow. Second operand 3 states and 44 transitions. [2024-11-10 22:29:41,037 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 23 transitions, 84 flow [2024-11-10 22:29:41,037 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 23 transitions, 83 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-10 22:29:41,038 INFO L231 Difference]: Finished difference. Result has 28 places, 22 transitions, 51 flow [2024-11-10 22:29:41,039 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=51, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=51, PETRI_PLACES=28, PETRI_TRANSITIONS=22} [2024-11-10 22:29:41,040 INFO L277 CegarLoopForPetriNet]: 30 programPoint places, -2 predicate places. [2024-11-10 22:29:41,040 INFO L471 AbstractCegarLoop]: Abstraction has has 28 places, 22 transitions, 51 flow [2024-11-10 22:29:41,040 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 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) [2024-11-10 22:29:41,040 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:29:41,040 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:29:41,040 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-10 22:29:41,040 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting f2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2024-11-10 22:29:41,041 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:29:41,041 INFO L85 PathProgramCache]: Analyzing trace with hash 757812266, now seen corresponding path program 1 times [2024-11-10 22:29:41,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:29:41,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091294500] [2024-11-10 22:29:41,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:29:41,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:29:41,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:29:41,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:29:41,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:29:41,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2091294500] [2024-11-10 22:29:41,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2091294500] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:29:41,175 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:29:41,176 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 22:29:41,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884008069] [2024-11-10 22:29:41,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:29:41,176 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 22:29:41,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:29:41,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 22:29:41,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 22:29:41,182 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 30 [2024-11-10 22:29:41,183 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 22 transitions, 51 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) [2024-11-10 22:29:41,183 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:29:41,183 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 30 [2024-11-10 22:29:41,184 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:29:41,272 INFO L124 PetriNetUnfolderBase]: 48/139 cut-off events. [2024-11-10 22:29:41,272 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-10 22:29:41,272 INFO L83 FinitePrefix]: Finished finitePrefix Result has 254 conditions, 139 events. 48/139 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 538 event pairs, 15 based on Foata normal form. 13/139 useless extension candidates. Maximal degree in co-relation 247. Up to 45 conditions per place. [2024-11-10 22:29:41,273 INFO L140 encePairwiseOnDemand]: 25/30 looper letters, 15 selfloop transitions, 3 changer transitions 10/35 dead transitions. [2024-11-10 22:29:41,274 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 35 transitions, 136 flow [2024-11-10 22:29:41,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 22:29:41,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-10 22:29:41,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 85 transitions. [2024-11-10 22:29:41,277 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5666666666666667 [2024-11-10 22:29:41,277 INFO L175 Difference]: Start difference. First operand has 28 places, 22 transitions, 51 flow. Second operand 5 states and 85 transitions. [2024-11-10 22:29:41,277 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 35 transitions, 136 flow [2024-11-10 22:29:41,278 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 35 transitions, 135 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-10 22:29:41,279 INFO L231 Difference]: Finished difference. Result has 33 places, 22 transitions, 65 flow [2024-11-10 22:29:41,280 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=50, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=65, PETRI_PLACES=33, PETRI_TRANSITIONS=22} [2024-11-10 22:29:41,281 INFO L277 CegarLoopForPetriNet]: 30 programPoint places, 3 predicate places. [2024-11-10 22:29:41,281 INFO L471 AbstractCegarLoop]: Abstraction has has 33 places, 22 transitions, 65 flow [2024-11-10 22:29:41,281 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) [2024-11-10 22:29:41,281 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:29:41,281 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:29:41,281 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-10 22:29:41,282 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting f2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2024-11-10 22:29:41,282 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:29:41,282 INFO L85 PathProgramCache]: Analyzing trace with hash 273962874, now seen corresponding path program 1 times [2024-11-10 22:29:41,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:29:41,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963970110] [2024-11-10 22:29:41,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:29:41,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:29:41,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:29:41,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:29:41,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:29:41,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963970110] [2024-11-10 22:29:41,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [963970110] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:29:41,360 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:29:41,360 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 22:29:41,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610348947] [2024-11-10 22:29:41,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:29:41,361 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 22:29:41,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:29:41,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 22:29:41,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 22:29:41,374 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 30 [2024-11-10 22:29:41,375 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 22 transitions, 65 flow. Second operand has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 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) [2024-11-10 22:29:41,375 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:29:41,375 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 30 [2024-11-10 22:29:41,375 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:29:41,437 INFO L124 PetriNetUnfolderBase]: 54/143 cut-off events. [2024-11-10 22:29:41,437 INFO L125 PetriNetUnfolderBase]: For 44/44 co-relation queries the response was YES. [2024-11-10 22:29:41,438 INFO L83 FinitePrefix]: Finished finitePrefix Result has 316 conditions, 143 events. 54/143 cut-off events. For 44/44 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 428 event pairs, 35 based on Foata normal form. 5/137 useless extension candidates. Maximal degree in co-relation 305. Up to 91 conditions per place. [2024-11-10 22:29:41,439 INFO L140 encePairwiseOnDemand]: 25/30 looper letters, 22 selfloop transitions, 3 changer transitions 0/30 dead transitions. [2024-11-10 22:29:41,439 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 30 transitions, 137 flow [2024-11-10 22:29:41,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 22:29:41,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 22:29:41,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 63 transitions. [2024-11-10 22:29:41,441 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.525 [2024-11-10 22:29:41,441 INFO L175 Difference]: Start difference. First operand has 33 places, 22 transitions, 65 flow. Second operand 4 states and 63 transitions. [2024-11-10 22:29:41,441 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 30 transitions, 137 flow [2024-11-10 22:29:41,443 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 30 transitions, 123 flow, removed 4 selfloop flow, removed 4 redundant places. [2024-11-10 22:29:41,444 INFO L231 Difference]: Finished difference. Result has 32 places, 24 transitions, 77 flow [2024-11-10 22:29:41,444 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=55, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=77, PETRI_PLACES=32, PETRI_TRANSITIONS=24} [2024-11-10 22:29:41,445 INFO L277 CegarLoopForPetriNet]: 30 programPoint places, 2 predicate places. [2024-11-10 22:29:41,445 INFO L471 AbstractCegarLoop]: Abstraction has has 32 places, 24 transitions, 77 flow [2024-11-10 22:29:41,445 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 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) [2024-11-10 22:29:41,445 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:29:41,445 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:29:41,446 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-10 22:29:41,446 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting f2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2024-11-10 22:29:41,446 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:29:41,446 INFO L85 PathProgramCache]: Analyzing trace with hash -1756009196, now seen corresponding path program 1 times [2024-11-10 22:29:41,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:29:41,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897393581] [2024-11-10 22:29:41,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:29:41,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:29:41,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:29:41,530 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:29:41,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:29:41,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897393581] [2024-11-10 22:29:41,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1897393581] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 22:29:41,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [22375435] [2024-11-10 22:29:41,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:29:41,532 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:29:41,532 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:29:41,534 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) [2024-11-10 22:29:41,536 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-10 22:29:41,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:29:41,590 INFO L255 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-10 22:29:41,595 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 22:29:41,645 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:29:41,646 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 22:29:41,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [22375435] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:29:41,646 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-10 22:29:41,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-11-10 22:29:41,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346926309] [2024-11-10 22:29:41,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:29:41,647 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 22:29:41,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:29:41,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 22:29:41,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-10 22:29:41,664 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 30 [2024-11-10 22:29:41,665 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 24 transitions, 77 flow. Second operand has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:29:41,665 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:29:41,665 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 30 [2024-11-10 22:29:41,666 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:29:41,777 INFO L124 PetriNetUnfolderBase]: 49/136 cut-off events. [2024-11-10 22:29:41,777 INFO L125 PetriNetUnfolderBase]: For 59/59 co-relation queries the response was YES. [2024-11-10 22:29:41,777 INFO L83 FinitePrefix]: Finished finitePrefix Result has 310 conditions, 136 events. 49/136 cut-off events. For 59/59 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 398 event pairs, 15 based on Foata normal form. 5/131 useless extension candidates. Maximal degree in co-relation 300. Up to 46 conditions per place. [2024-11-10 22:29:41,779 INFO L140 encePairwiseOnDemand]: 26/30 looper letters, 25 selfloop transitions, 5 changer transitions 0/35 dead transitions. [2024-11-10 22:29:41,779 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 35 transitions, 161 flow [2024-11-10 22:29:41,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 22:29:41,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 22:29:41,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 85 transitions. [2024-11-10 22:29:41,781 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4722222222222222 [2024-11-10 22:29:41,781 INFO L175 Difference]: Start difference. First operand has 32 places, 24 transitions, 77 flow. Second operand 6 states and 85 transitions. [2024-11-10 22:29:41,781 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 35 transitions, 161 flow [2024-11-10 22:29:41,781 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 35 transitions, 159 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-10 22:29:41,782 INFO L231 Difference]: Finished difference. Result has 35 places, 23 transitions, 81 flow [2024-11-10 22:29:41,784 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=71, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=81, PETRI_PLACES=35, PETRI_TRANSITIONS=23} [2024-11-10 22:29:41,786 INFO L277 CegarLoopForPetriNet]: 30 programPoint places, 5 predicate places. [2024-11-10 22:29:41,787 INFO L471 AbstractCegarLoop]: Abstraction has has 35 places, 23 transitions, 81 flow [2024-11-10 22:29:41,787 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:29:41,788 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:29:41,788 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:29:41,803 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-10 22:29:41,988 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:29:41,991 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting f2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2024-11-10 22:29:41,991 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:29:41,991 INFO L85 PathProgramCache]: Analyzing trace with hash 1398289935, now seen corresponding path program 1 times [2024-11-10 22:29:41,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:29:41,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692561356] [2024-11-10 22:29:41,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:29:41,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:29:42,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:29:42,047 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:29:42,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:29:42,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692561356] [2024-11-10 22:29:42,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [692561356] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 22:29:42,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [280321788] [2024-11-10 22:29:42,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:29:42,048 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:29:42,048 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:29:42,050 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) [2024-11-10 22:29:42,051 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-10 22:29:42,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:29:42,094 INFO L255 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-10 22:29:42,095 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 22:29:42,117 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:29:42,117 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 22:29:42,152 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:29:42,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [280321788] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 22:29:42,153 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 22:29:42,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-11-10 22:29:42,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725802262] [2024-11-10 22:29:42,153 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 22:29:42,154 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-10 22:29:42,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:29:42,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-10 22:29:42,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-10 22:29:42,169 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 30 [2024-11-10 22:29:42,170 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 23 transitions, 81 flow. Second operand has 12 states, 12 states have (on average 10.666666666666666) internal successors, (128), 12 states have internal predecessors, (128), 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) [2024-11-10 22:29:42,170 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:29:42,170 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 30 [2024-11-10 22:29:42,170 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:29:42,281 INFO L124 PetriNetUnfolderBase]: 79/238 cut-off events. [2024-11-10 22:29:42,282 INFO L125 PetriNetUnfolderBase]: For 220/220 co-relation queries the response was YES. [2024-11-10 22:29:42,282 INFO L83 FinitePrefix]: Finished finitePrefix Result has 552 conditions, 238 events. 79/238 cut-off events. For 220/220 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 747 event pairs, 30 based on Foata normal form. 15/246 useless extension candidates. Maximal degree in co-relation 542. Up to 81 conditions per place. [2024-11-10 22:29:42,283 INFO L140 encePairwiseOnDemand]: 26/30 looper letters, 39 selfloop transitions, 9 changer transitions 0/53 dead transitions. [2024-11-10 22:29:42,283 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 53 transitions, 269 flow [2024-11-10 22:29:42,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-10 22:29:42,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-10 22:29:42,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 141 transitions. [2024-11-10 22:29:42,285 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.47 [2024-11-10 22:29:42,285 INFO L175 Difference]: Start difference. First operand has 35 places, 23 transitions, 81 flow. Second operand 10 states and 141 transitions. [2024-11-10 22:29:42,285 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 53 transitions, 269 flow [2024-11-10 22:29:42,286 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 53 transitions, 254 flow, removed 4 selfloop flow, removed 4 redundant places. [2024-11-10 22:29:42,287 INFO L231 Difference]: Finished difference. Result has 43 places, 29 transitions, 136 flow [2024-11-10 22:29:42,287 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=72, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=136, PETRI_PLACES=43, PETRI_TRANSITIONS=29} [2024-11-10 22:29:42,288 INFO L277 CegarLoopForPetriNet]: 30 programPoint places, 13 predicate places. [2024-11-10 22:29:42,288 INFO L471 AbstractCegarLoop]: Abstraction has has 43 places, 29 transitions, 136 flow [2024-11-10 22:29:42,288 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 10.666666666666666) internal successors, (128), 12 states have internal predecessors, (128), 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) [2024-11-10 22:29:42,288 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:29:42,288 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:29:42,301 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-10 22:29:42,489 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 [2024-11-10 22:29:42,489 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting f2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2024-11-10 22:29:42,490 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:29:42,490 INFO L85 PathProgramCache]: Analyzing trace with hash 1504673025, now seen corresponding path program 2 times [2024-11-10 22:29:42,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:29:42,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278392703] [2024-11-10 22:29:42,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:29:42,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:29:42,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:29:42,644 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:29:42,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:29:42,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278392703] [2024-11-10 22:29:42,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1278392703] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 22:29:42,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [459175113] [2024-11-10 22:29:42,644 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-10 22:29:42,645 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:29:42,645 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:29:42,647 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) [2024-11-10 22:29:42,648 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-10 22:29:42,692 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-10 22:29:42,693 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-10 22:29:42,693 INFO L255 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-10 22:29:42,694 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 22:29:42,770 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-10 22:29:42,771 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 22:29:42,855 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-10 22:29:42,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [459175113] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 22:29:42,857 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 22:29:42,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 19 [2024-11-10 22:29:42,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976696061] [2024-11-10 22:29:42,858 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 22:29:42,858 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-10 22:29:42,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:29:42,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-10 22:29:42,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=309, Unknown=0, NotChecked=0, Total=380 [2024-11-10 22:29:42,905 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 30 [2024-11-10 22:29:42,906 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 29 transitions, 136 flow. Second operand has 20 states, 20 states have (on average 7.1) internal successors, (142), 20 states have internal predecessors, (142), 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) [2024-11-10 22:29:42,906 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:29:42,906 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 30 [2024-11-10 22:29:42,906 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:29:43,526 INFO L124 PetriNetUnfolderBase]: 214/556 cut-off events. [2024-11-10 22:29:43,527 INFO L125 PetriNetUnfolderBase]: For 888/888 co-relation queries the response was YES. [2024-11-10 22:29:43,528 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1386 conditions, 556 events. 214/556 cut-off events. For 888/888 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 2275 event pairs, 18 based on Foata normal form. 20/571 useless extension candidates. Maximal degree in co-relation 1374. Up to 81 conditions per place. [2024-11-10 22:29:43,529 INFO L140 encePairwiseOnDemand]: 23/30 looper letters, 0 selfloop transitions, 0 changer transitions 146/146 dead transitions. [2024-11-10 22:29:43,529 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 146 transitions, 761 flow [2024-11-10 22:29:43,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-11-10 22:29:43,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2024-11-10 22:29:43,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 312 transitions. [2024-11-10 22:29:43,530 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3151515151515151 [2024-11-10 22:29:43,531 INFO L175 Difference]: Start difference. First operand has 43 places, 29 transitions, 136 flow. Second operand 33 states and 312 transitions. [2024-11-10 22:29:43,531 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 146 transitions, 761 flow [2024-11-10 22:29:43,534 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 146 transitions, 717 flow, removed 10 selfloop flow, removed 6 redundant places. [2024-11-10 22:29:43,535 INFO L231 Difference]: Finished difference. Result has 68 places, 0 transitions, 0 flow [2024-11-10 22:29:43,535 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=106, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=33, PETRI_FLOW=0, PETRI_PLACES=68, PETRI_TRANSITIONS=0} [2024-11-10 22:29:43,535 INFO L277 CegarLoopForPetriNet]: 30 programPoint places, 38 predicate places. [2024-11-10 22:29:43,535 INFO L471 AbstractCegarLoop]: Abstraction has has 68 places, 0 transitions, 0 flow [2024-11-10 22:29:43,536 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 7.1) internal successors, (142), 20 states have internal predecessors, (142), 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) [2024-11-10 22:29:43,538 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 10 remaining) [2024-11-10 22:29:43,538 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 10 remaining) [2024-11-10 22:29:43,538 INFO L782 garLoopResultBuilder]: Registering result SAFE for location f1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 10 remaining) [2024-11-10 22:29:43,539 INFO L782 garLoopResultBuilder]: Registering result SAFE for location f1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 10 remaining) [2024-11-10 22:29:43,539 INFO L782 garLoopResultBuilder]: Registering result SAFE for location f2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 10 remaining) [2024-11-10 22:29:43,539 INFO L782 garLoopResultBuilder]: Registering result SAFE for location f2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 10 remaining) [2024-11-10 22:29:43,539 INFO L782 garLoopResultBuilder]: Registering result SAFE for location f1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 10 remaining) [2024-11-10 22:29:43,539 INFO L782 garLoopResultBuilder]: Registering result SAFE for location f1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 10 remaining) [2024-11-10 22:29:43,539 INFO L782 garLoopResultBuilder]: Registering result SAFE for location f2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 10 remaining) [2024-11-10 22:29:43,539 INFO L782 garLoopResultBuilder]: Registering result SAFE for location f2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 10 remaining) [2024-11-10 22:29:43,555 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-10 22:29:43,743 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 [2024-11-10 22:29:43,744 INFO L407 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1] [2024-11-10 22:29:43,748 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-10 22:29:43,748 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-10 22:29:43,752 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 10:29:43 BasicIcfg [2024-11-10 22:29:43,753 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-10 22:29:43,753 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-10 22:29:43,753 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-10 22:29:43,753 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-10 22:29:43,753 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 10:29:40" (3/4) ... [2024-11-10 22:29:43,755 INFO L143 WitnessPrinter]: Generating witness for correct program [2024-11-10 22:29:43,757 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure f1 [2024-11-10 22:29:43,757 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure f2 [2024-11-10 22:29:43,760 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 29 nodes and edges [2024-11-10 22:29:43,760 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2024-11-10 22:29:43,760 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-11-10 22:29:43,760 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-10 22:29:43,831 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-10 22:29:43,831 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-10 22:29:43,831 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-10 22:29:43,831 INFO L158 Benchmark]: Toolchain (without parser) took 4427.99ms. Allocated memory was 180.4MB in the beginning and 218.1MB in the end (delta: 37.7MB). Free memory was 151.8MB in the beginning and 113.6MB in the end (delta: 38.2MB). Peak memory consumption was 74.4MB. Max. memory is 16.1GB. [2024-11-10 22:29:43,832 INFO L158 Benchmark]: CDTParser took 0.83ms. Allocated memory is still 132.1MB. Free memory is still 96.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-10 22:29:43,832 INFO L158 Benchmark]: CACSL2BoogieTranslator took 399.16ms. Allocated memory is still 180.4MB. Free memory was 151.6MB in the beginning and 130.2MB in the end (delta: 21.4MB). Peak memory consumption was 25.6MB. Max. memory is 16.1GB. [2024-11-10 22:29:43,832 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.56ms. Allocated memory is still 180.4MB. Free memory was 130.2MB in the beginning and 129.0MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-10 22:29:43,832 INFO L158 Benchmark]: Boogie Preprocessor took 35.78ms. Allocated memory is still 180.4MB. Free memory was 129.0MB in the beginning and 126.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-10 22:29:43,832 INFO L158 Benchmark]: IcfgBuilder took 454.66ms. Allocated memory is still 180.4MB. Free memory was 126.9MB in the beginning and 105.9MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-11-10 22:29:43,832 INFO L158 Benchmark]: TraceAbstraction took 3421.62ms. Allocated memory was 180.4MB in the beginning and 218.1MB in the end (delta: 37.7MB). Free memory was 105.1MB in the beginning and 117.8MB in the end (delta: -12.8MB). Peak memory consumption was 23.7MB. Max. memory is 16.1GB. [2024-11-10 22:29:43,833 INFO L158 Benchmark]: Witness Printer took 77.93ms. Allocated memory is still 218.1MB. Free memory was 117.8MB in the beginning and 113.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-10 22:29:43,834 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.83ms. Allocated memory is still 132.1MB. Free memory is still 96.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 399.16ms. Allocated memory is still 180.4MB. Free memory was 151.6MB in the beginning and 130.2MB in the end (delta: 21.4MB). Peak memory consumption was 25.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.56ms. Allocated memory is still 180.4MB. Free memory was 130.2MB in the beginning and 129.0MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 35.78ms. Allocated memory is still 180.4MB. Free memory was 129.0MB in the beginning and 126.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * IcfgBuilder took 454.66ms. Allocated memory is still 180.4MB. Free memory was 126.9MB in the beginning and 105.9MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 3421.62ms. Allocated memory was 180.4MB in the beginning and 218.1MB in the end (delta: 37.7MB). Free memory was 105.1MB in the beginning and 117.8MB in the end (delta: -12.8MB). Peak memory consumption was 23.7MB. Max. memory is 16.1GB. * Witness Printer took 77.93ms. Allocated memory is still 218.1MB. Free memory was 117.8MB in the beginning and 113.6MB 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: 760]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 760]: 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 - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 49 locations, 10 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 3.3s, OverallIterations: 7, TraceHistogramMax: 5, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 578 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 540 mSDsluCounter, 217 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 201 mSDsCounter, 15 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 715 IncrementalHoareTripleChecker+Invalid, 730 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 15 mSolverCounterUnsat, 16 mSDtfsCounter, 715 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 168 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 622 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=136occurred in iteration=6, InterpolantAutomatonStates: 64, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 148 NumberOfCodeBlocks, 132 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 180 ConstructedInterpolants, 0 QuantifiedInterpolants, 448 SizeOfPredicates, 9 NumberOfNonLiveVariables, 240 ConjunctsInSsa, 16 ConjunctsInUnsatCore, 12 InterpolantComputations, 5 PerfectInterpolantSequences, 67/138 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 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-10 22:29:43,854 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE