./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/pthread-atomic/peterson.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version e2fb8bed Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/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_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/pthread-atomic/peterson.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-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 valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6ea11bc1281710e3131473f2a673d7d78c2a42824b03a7d695132107cc74f895 --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-09 00:56:49,506 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-09 00:56:49,555 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2025-03-09 00:56:49,562 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-09 00:56:49,562 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-09 00:56:49,589 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-09 00:56:49,589 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-09 00:56:49,589 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-09 00:56:49,589 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-09 00:56:49,590 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-09 00:56:49,590 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-09 00:56:49,590 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-09 00:56:49,590 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-09 00:56:49,590 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-09 00:56:49,590 INFO L153 SettingsManager]: * Use SBE=true [2025-03-09 00:56:49,590 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-09 00:56:49,590 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-09 00:56:49,590 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-09 00:56:49,590 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-09 00:56:49,590 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-09 00:56:49,590 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-03-09 00:56:49,592 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-03-09 00:56:49,592 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-03-09 00:56:49,592 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-09 00:56:49,592 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-03-09 00:56:49,592 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-09 00:56:49,592 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-09 00:56:49,592 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-09 00:56:49,592 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-09 00:56:49,592 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-09 00:56:49,592 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-09 00:56:49,592 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-09 00:56:49,592 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-09 00:56:49,593 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-09 00:56:49,593 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-09 00:56:49,593 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-09 00:56:49,593 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-09 00:56:49,593 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-09 00:56:49,593 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-09 00:56:49,593 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-09 00:56:49,593 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-09 00:56:49,593 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-09 00:56:49,593 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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 valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) 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 -> 6ea11bc1281710e3131473f2a673d7d78c2a42824b03a7d695132107cc74f895 [2025-03-09 00:56:49,933 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-09 00:56:49,938 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-09 00:56:49,941 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-09 00:56:49,941 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-09 00:56:49,942 INFO L274 PluginConnector]: CDTParser initialized [2025-03-09 00:56:49,942 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-atomic/peterson.i [2025-03-09 00:56:51,044 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a221f5675/c73271c420ed4164b7e21020581381c8/FLAG5999a5edf [2025-03-09 00:56:51,261 INFO L384 CDTParser]: Found 1 translation units. [2025-03-09 00:56:51,261 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-atomic/peterson.i [2025-03-09 00:56:51,272 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a221f5675/c73271c420ed4164b7e21020581381c8/FLAG5999a5edf [2025-03-09 00:56:51,287 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a221f5675/c73271c420ed4164b7e21020581381c8 [2025-03-09 00:56:51,289 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-09 00:56:51,290 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-09 00:56:51,291 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-09 00:56:51,291 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-09 00:56:51,294 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-09 00:56:51,295 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.03 12:56:51" (1/1) ... [2025-03-09 00:56:51,296 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5756aea8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 12:56:51, skipping insertion in model container [2025-03-09 00:56:51,297 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.03 12:56:51" (1/1) ... [2025-03-09 00:56:51,326 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-09 00:56:51,556 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-09 00:56:51,563 INFO L200 MainTranslator]: Completed pre-run [2025-03-09 00:56:51,603 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-09 00:56:51,629 INFO L204 MainTranslator]: Completed translation [2025-03-09 00:56:51,630 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 12:56:51 WrapperNode [2025-03-09 00:56:51,630 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-09 00:56:51,631 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-09 00:56:51,631 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-09 00:56:51,631 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-09 00:56:51,635 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 12:56:51" (1/1) ... [2025-03-09 00:56:51,646 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 12:56:51" (1/1) ... [2025-03-09 00:56:51,659 INFO L138 Inliner]: procedures = 166, calls = 10, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 62 [2025-03-09 00:56:51,660 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-09 00:56:51,660 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-09 00:56:51,660 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-09 00:56:51,660 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-09 00:56:51,666 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 12:56:51" (1/1) ... [2025-03-09 00:56:51,667 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 12:56:51" (1/1) ... [2025-03-09 00:56:51,669 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 12:56:51" (1/1) ... [2025-03-09 00:56:51,676 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]. [2025-03-09 00:56:51,676 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 12:56:51" (1/1) ... [2025-03-09 00:56:51,676 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 12:56:51" (1/1) ... [2025-03-09 00:56:51,679 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 12:56:51" (1/1) ... [2025-03-09 00:56:51,680 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 12:56:51" (1/1) ... [2025-03-09 00:56:51,680 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 12:56:51" (1/1) ... [2025-03-09 00:56:51,681 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 12:56:51" (1/1) ... [2025-03-09 00:56:51,682 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-09 00:56:51,682 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-09 00:56:51,682 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-09 00:56:51,683 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-09 00:56:51,683 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 12:56:51" (1/1) ... [2025-03-09 00:56:51,687 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-09 00:56:51,695 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 00:56:51,708 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) [2025-03-09 00:56:51,709 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 [2025-03-09 00:56:51,724 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2025-03-09 00:56:51,724 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2025-03-09 00:56:51,724 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2025-03-09 00:56:51,724 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2025-03-09 00:56:51,724 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-09 00:56:51,724 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-09 00:56:51,725 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-09 00:56:51,725 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-09 00:56:51,725 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-09 00:56:51,826 INFO L256 CfgBuilder]: Building ICFG [2025-03-09 00:56:51,828 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-09 00:56:51,931 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-09 00:56:51,931 INFO L307 CfgBuilder]: Performing block encoding [2025-03-09 00:56:52,001 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-09 00:56:52,002 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-09 00:56:52,002 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 12:56:52 BoogieIcfgContainer [2025-03-09 00:56:52,002 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-09 00:56:52,004 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-09 00:56:52,004 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-09 00:56:52,008 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-09 00:56:52,008 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.03 12:56:51" (1/3) ... [2025-03-09 00:56:52,009 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@634fcf26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.03 12:56:52, skipping insertion in model container [2025-03-09 00:56:52,009 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 12:56:51" (2/3) ... [2025-03-09 00:56:52,010 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@634fcf26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.03 12:56:52, skipping insertion in model container [2025-03-09 00:56:52,010 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 12:56:52" (3/3) ... [2025-03-09 00:56:52,010 INFO L128 eAbstractionObserver]: Analyzing ICFG peterson.i [2025-03-09 00:56:52,020 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-09 00:56:52,021 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG peterson.i that has 3 procedures, 35 locations, 1 initial locations, 2 loop locations, and 3 error locations. [2025-03-09 00:56:52,021 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-09 00:56:52,067 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-03-09 00:56:52,103 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 41 places, 40 transitions, 94 flow [2025-03-09 00:56:52,128 INFO L124 PetriNetUnfolderBase]: 6/38 cut-off events. [2025-03-09 00:56:52,131 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-03-09 00:56:52,133 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47 conditions, 38 events. 6/38 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 65 event pairs, 0 based on Foata normal form. 0/29 useless extension candidates. Maximal degree in co-relation 33. Up to 2 conditions per place. [2025-03-09 00:56:52,135 INFO L82 GeneralOperation]: Start removeDead. Operand has 41 places, 40 transitions, 94 flow [2025-03-09 00:56:52,138 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 38 places, 37 transitions, 86 flow [2025-03-09 00:56:52,148 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-09 00:56:52,157 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=None, 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;@52b0ccfd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-09 00:56:52,158 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2025-03-09 00:56:52,164 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-09 00:56:52,164 INFO L124 PetriNetUnfolderBase]: 4/25 cut-off events. [2025-03-09 00:56:52,164 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-03-09 00:56:52,164 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 00:56:52,165 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 00:56:52,165 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONMEMORY_LEAK === [thr2Err0ASSERT_VIOLATIONMEMORY_LEAK, thr1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2025-03-09 00:56:52,174 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 00:56:52,175 INFO L85 PathProgramCache]: Analyzing trace with hash 1112343219, now seen corresponding path program 1 times [2025-03-09 00:56:52,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 00:56:52,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635848276] [2025-03-09 00:56:52,184 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 00:56:52,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 00:56:52,252 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-03-09 00:56:52,264 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-03-09 00:56:52,265 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 00:56:52,265 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 00:56:52,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 00:56:52,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 00:56:52,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [635848276] [2025-03-09 00:56:52,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [635848276] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 00:56:52,349 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 00:56:52,349 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 00:56:52,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464875013] [2025-03-09 00:56:52,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 00:56:52,355 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-09 00:56:52,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 00:56:52,374 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-09 00:56:52,375 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-09 00:56:52,381 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 40 [2025-03-09 00:56:52,383 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 37 transitions, 86 flow. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 00:56:52,384 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 00:56:52,384 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 40 [2025-03-09 00:56:52,384 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 00:56:52,535 INFO L124 PetriNetUnfolderBase]: 187/420 cut-off events. [2025-03-09 00:56:52,535 INFO L125 PetriNetUnfolderBase]: For 29/29 co-relation queries the response was YES. [2025-03-09 00:56:52,537 INFO L83 FinitePrefix]: Finished finitePrefix Result has 790 conditions, 420 events. 187/420 cut-off events. For 29/29 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 2013 event pairs, 72 based on Foata normal form. 82/486 useless extension candidates. Maximal degree in co-relation 709. Up to 173 conditions per place. [2025-03-09 00:56:52,542 INFO L140 encePairwiseOnDemand]: 31/40 looper letters, 28 selfloop transitions, 3 changer transitions 0/42 dead transitions. [2025-03-09 00:56:52,543 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 42 transitions, 164 flow [2025-03-09 00:56:52,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-09 00:56:52,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-09 00:56:52,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 84 transitions. [2025-03-09 00:56:52,554 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7 [2025-03-09 00:56:52,555 INFO L175 Difference]: Start difference. First operand has 38 places, 37 transitions, 86 flow. Second operand 3 states and 84 transitions. [2025-03-09 00:56:52,555 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 42 transitions, 164 flow [2025-03-09 00:56:52,558 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 42 transitions, 152 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-03-09 00:56:52,560 INFO L231 Difference]: Finished difference. Result has 36 places, 32 transitions, 86 flow [2025-03-09 00:56:52,562 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=86, PETRI_PLACES=36, PETRI_TRANSITIONS=32} [2025-03-09 00:56:52,564 INFO L279 CegarLoopForPetriNet]: 38 programPoint places, -2 predicate places. [2025-03-09 00:56:52,564 INFO L471 AbstractCegarLoop]: Abstraction has has 36 places, 32 transitions, 86 flow [2025-03-09 00:56:52,564 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 00:56:52,564 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 00:56:52,564 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 00:56:52,564 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-09 00:56:52,564 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr2Err0ASSERT_VIOLATIONMEMORY_LEAK === [thr2Err0ASSERT_VIOLATIONMEMORY_LEAK, thr1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2025-03-09 00:56:52,565 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 00:56:52,565 INFO L85 PathProgramCache]: Analyzing trace with hash 1031558571, now seen corresponding path program 1 times [2025-03-09 00:56:52,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 00:56:52,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008088708] [2025-03-09 00:56:52,565 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 00:56:52,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 00:56:52,578 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-03-09 00:56:52,583 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-03-09 00:56:52,583 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 00:56:52,583 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 00:56:52,627 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 00:56:52,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 00:56:52,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1008088708] [2025-03-09 00:56:52,628 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1008088708] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 00:56:52,628 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 00:56:52,628 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 00:56:52,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214401251] [2025-03-09 00:56:52,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 00:56:52,629 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-09 00:56:52,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 00:56:52,629 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-09 00:56:52,629 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-09 00:56:52,632 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 40 [2025-03-09 00:56:52,633 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 32 transitions, 86 flow. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 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) [2025-03-09 00:56:52,634 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 00:56:52,634 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 40 [2025-03-09 00:56:52,634 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 00:56:52,719 INFO L124 PetriNetUnfolderBase]: 175/389 cut-off events. [2025-03-09 00:56:52,719 INFO L125 PetriNetUnfolderBase]: For 57/57 co-relation queries the response was YES. [2025-03-09 00:56:52,720 INFO L83 FinitePrefix]: Finished finitePrefix Result has 801 conditions, 389 events. 175/389 cut-off events. For 57/57 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 1751 event pairs, 91 based on Foata normal form. 23/411 useless extension candidates. Maximal degree in co-relation 267. Up to 210 conditions per place. [2025-03-09 00:56:52,722 INFO L140 encePairwiseOnDemand]: 36/40 looper letters, 28 selfloop transitions, 2 changer transitions 0/41 dead transitions. [2025-03-09 00:56:52,722 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 41 transitions, 166 flow [2025-03-09 00:56:52,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-09 00:56:52,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-09 00:56:52,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 77 transitions. [2025-03-09 00:56:52,723 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6416666666666667 [2025-03-09 00:56:52,723 INFO L175 Difference]: Start difference. First operand has 36 places, 32 transitions, 86 flow. Second operand 3 states and 77 transitions. [2025-03-09 00:56:52,723 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 41 transitions, 166 flow [2025-03-09 00:56:52,724 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 41 transitions, 160 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-09 00:56:52,725 INFO L231 Difference]: Finished difference. Result has 37 places, 32 transitions, 90 flow [2025-03-09 00:56:52,725 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=90, PETRI_PLACES=37, PETRI_TRANSITIONS=32} [2025-03-09 00:56:52,725 INFO L279 CegarLoopForPetriNet]: 38 programPoint places, -1 predicate places. [2025-03-09 00:56:52,725 INFO L471 AbstractCegarLoop]: Abstraction has has 37 places, 32 transitions, 90 flow [2025-03-09 00:56:52,726 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 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) [2025-03-09 00:56:52,726 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 00:56:52,726 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 00:56:52,726 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-09 00:56:52,726 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err0ASSERT_VIOLATIONMEMORY_LEAK === [thr2Err0ASSERT_VIOLATIONMEMORY_LEAK, thr1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2025-03-09 00:56:52,726 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 00:56:52,726 INFO L85 PathProgramCache]: Analyzing trace with hash 352008406, now seen corresponding path program 1 times [2025-03-09 00:56:52,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 00:56:52,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128470336] [2025-03-09 00:56:52,726 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 00:56:52,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 00:56:52,739 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-03-09 00:56:52,746 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-03-09 00:56:52,746 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 00:56:52,746 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 00:56:52,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 00:56:52,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 00:56:52,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128470336] [2025-03-09 00:56:52,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [128470336] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 00:56:52,808 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 00:56:52,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-09 00:56:52,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516801435] [2025-03-09 00:56:52,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 00:56:52,809 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 00:56:52,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 00:56:52,809 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 00:56:52,810 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-09 00:56:52,816 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 40 [2025-03-09 00:56:52,816 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 32 transitions, 90 flow. Second operand has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 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) [2025-03-09 00:56:52,816 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 00:56:52,816 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 40 [2025-03-09 00:56:52,816 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 00:56:52,915 INFO L124 PetriNetUnfolderBase]: 189/401 cut-off events. [2025-03-09 00:56:52,916 INFO L125 PetriNetUnfolderBase]: For 107/109 co-relation queries the response was YES. [2025-03-09 00:56:52,916 INFO L83 FinitePrefix]: Finished finitePrefix Result has 868 conditions, 401 events. 189/401 cut-off events. For 107/109 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 1761 event pairs, 69 based on Foata normal form. 20/418 useless extension candidates. Maximal degree in co-relation 306. Up to 152 conditions per place. [2025-03-09 00:56:52,918 INFO L140 encePairwiseOnDemand]: 33/40 looper letters, 33 selfloop transitions, 7 changer transitions 1/51 dead transitions. [2025-03-09 00:56:52,918 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 51 transitions, 226 flow [2025-03-09 00:56:52,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 00:56:52,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-09 00:56:52,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 97 transitions. [2025-03-09 00:56:52,920 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.60625 [2025-03-09 00:56:52,920 INFO L175 Difference]: Start difference. First operand has 37 places, 32 transitions, 90 flow. Second operand 4 states and 97 transitions. [2025-03-09 00:56:52,920 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 51 transitions, 226 flow [2025-03-09 00:56:52,923 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 51 transitions, 222 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-09 00:56:52,923 INFO L231 Difference]: Finished difference. Result has 42 places, 38 transitions, 142 flow [2025-03-09 00:56:52,923 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=88, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=142, PETRI_PLACES=42, PETRI_TRANSITIONS=38} [2025-03-09 00:56:52,924 INFO L279 CegarLoopForPetriNet]: 38 programPoint places, 4 predicate places. [2025-03-09 00:56:52,924 INFO L471 AbstractCegarLoop]: Abstraction has has 42 places, 38 transitions, 142 flow [2025-03-09 00:56:52,924 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 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) [2025-03-09 00:56:52,924 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 00:56:52,924 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 00:56:52,924 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-09 00:56:52,926 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err0ASSERT_VIOLATIONMEMORY_LEAK === [thr2Err0ASSERT_VIOLATIONMEMORY_LEAK, thr1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2025-03-09 00:56:52,926 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 00:56:52,926 INFO L85 PathProgramCache]: Analyzing trace with hash 2012671450, now seen corresponding path program 2 times [2025-03-09 00:56:52,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 00:56:52,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1625144558] [2025-03-09 00:56:52,927 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-09 00:56:52,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 00:56:52,939 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 15 statements into 1 equivalence classes. [2025-03-09 00:56:52,944 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-03-09 00:56:52,944 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-09 00:56:52,944 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 00:56:52,993 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 00:56:52,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 00:56:52,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1625144558] [2025-03-09 00:56:52,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1625144558] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 00:56:52,995 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 00:56:52,995 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-09 00:56:52,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955757526] [2025-03-09 00:56:52,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 00:56:52,995 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 00:56:52,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 00:56:52,995 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 00:56:52,995 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-09 00:56:52,999 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 40 [2025-03-09 00:56:52,999 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 38 transitions, 142 flow. Second operand has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 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) [2025-03-09 00:56:52,999 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 00:56:52,999 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 40 [2025-03-09 00:56:52,999 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 00:56:53,067 INFO L124 PetriNetUnfolderBase]: 147/288 cut-off events. [2025-03-09 00:56:53,067 INFO L125 PetriNetUnfolderBase]: For 163/163 co-relation queries the response was YES. [2025-03-09 00:56:53,068 INFO L83 FinitePrefix]: Finished finitePrefix Result has 782 conditions, 288 events. 147/288 cut-off events. For 163/163 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1012 event pairs, 47 based on Foata normal form. 15/301 useless extension candidates. Maximal degree in co-relation 309. Up to 116 conditions per place. [2025-03-09 00:56:53,070 INFO L140 encePairwiseOnDemand]: 33/40 looper letters, 33 selfloop transitions, 8 changer transitions 2/49 dead transitions. [2025-03-09 00:56:53,070 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 49 transitions, 274 flow [2025-03-09 00:56:53,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 00:56:53,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-09 00:56:53,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 94 transitions. [2025-03-09 00:56:53,071 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5875 [2025-03-09 00:56:53,072 INFO L175 Difference]: Start difference. First operand has 42 places, 38 transitions, 142 flow. Second operand 4 states and 94 transitions. [2025-03-09 00:56:53,072 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 49 transitions, 274 flow [2025-03-09 00:56:53,073 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 49 transitions, 268 flow, removed 3 selfloop flow, removed 0 redundant places. [2025-03-09 00:56:53,074 INFO L231 Difference]: Finished difference. Result has 42 places, 38 transitions, 186 flow [2025-03-09 00:56:53,074 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=120, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=186, PETRI_PLACES=42, PETRI_TRANSITIONS=38} [2025-03-09 00:56:53,075 INFO L279 CegarLoopForPetriNet]: 38 programPoint places, 4 predicate places. [2025-03-09 00:56:53,075 INFO L471 AbstractCegarLoop]: Abstraction has has 42 places, 38 transitions, 186 flow [2025-03-09 00:56:53,075 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 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) [2025-03-09 00:56:53,075 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 00:56:53,075 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 00:56:53,075 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-09 00:56:53,075 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [thr2Err0ASSERT_VIOLATIONMEMORY_LEAK, thr1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2025-03-09 00:56:53,076 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 00:56:53,076 INFO L85 PathProgramCache]: Analyzing trace with hash -1065172276, now seen corresponding path program 1 times [2025-03-09 00:56:53,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 00:56:53,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [260281696] [2025-03-09 00:56:53,076 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 00:56:53,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 00:56:53,087 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 23 statements into 1 equivalence classes. [2025-03-09 00:56:53,093 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-03-09 00:56:53,093 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 00:56:53,093 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 00:56:53,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 00:56:53,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 00:56:53,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [260281696] [2025-03-09 00:56:53,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [260281696] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 00:56:53,124 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 00:56:53,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-03-09 00:56:53,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601561596] [2025-03-09 00:56:53,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 00:56:53,124 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-09 00:56:53,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 00:56:53,125 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-09 00:56:53,125 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-09 00:56:53,125 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 40 [2025-03-09 00:56:53,125 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 38 transitions, 186 flow. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 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) [2025-03-09 00:56:53,125 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 00:56:53,125 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 40 [2025-03-09 00:56:53,125 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 00:56:53,174 INFO L124 PetriNetUnfolderBase]: 128/263 cut-off events. [2025-03-09 00:56:53,175 INFO L125 PetriNetUnfolderBase]: For 325/336 co-relation queries the response was YES. [2025-03-09 00:56:53,175 INFO L83 FinitePrefix]: Finished finitePrefix Result has 784 conditions, 263 events. 128/263 cut-off events. For 325/336 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 929 event pairs, 91 based on Foata normal form. 2/261 useless extension candidates. Maximal degree in co-relation 459. Up to 210 conditions per place. [2025-03-09 00:56:53,176 INFO L140 encePairwiseOnDemand]: 38/40 looper letters, 0 selfloop transitions, 0 changer transitions 37/37 dead transitions. [2025-03-09 00:56:53,176 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 37 transitions, 236 flow [2025-03-09 00:56:53,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-09 00:56:53,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-09 00:56:53,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 63 transitions. [2025-03-09 00:56:53,179 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.525 [2025-03-09 00:56:53,179 INFO L175 Difference]: Start difference. First operand has 42 places, 38 transitions, 186 flow. Second operand 3 states and 63 transitions. [2025-03-09 00:56:53,179 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 37 transitions, 236 flow [2025-03-09 00:56:53,182 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 37 transitions, 229 flow, removed 1 selfloop flow, removed 2 redundant places. [2025-03-09 00:56:53,183 INFO L231 Difference]: Finished difference. Result has 41 places, 0 transitions, 0 flow [2025-03-09 00:56:53,183 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=177, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=41, PETRI_TRANSITIONS=0} [2025-03-09 00:56:53,184 INFO L279 CegarLoopForPetriNet]: 38 programPoint places, 3 predicate places. [2025-03-09 00:56:53,185 INFO L471 AbstractCegarLoop]: Abstraction has has 41 places, 0 transitions, 0 flow [2025-03-09 00:56:53,185 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 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) [2025-03-09 00:56:53,187 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thr2Err0ASSERT_VIOLATIONMEMORY_LEAK (6 of 7 remaining) [2025-03-09 00:56:53,189 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONMEMORY_LEAK (5 of 7 remaining) [2025-03-09 00:56:53,189 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (4 of 7 remaining) [2025-03-09 00:56:53,189 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 7 remaining) [2025-03-09 00:56:53,189 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 7 remaining) [2025-03-09 00:56:53,190 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thr2Err0ASSERT_VIOLATIONMEMORY_LEAK (1 of 7 remaining) [2025-03-09 00:56:53,190 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONMEMORY_LEAK (0 of 7 remaining) [2025-03-09 00:56:53,190 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-09 00:56:53,190 INFO L422 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1] [2025-03-09 00:56:53,196 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-03-09 00:56:53,197 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-09 00:56:53,201 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.03 12:56:53 BasicIcfg [2025-03-09 00:56:53,201 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-09 00:56:53,202 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-09 00:56:53,202 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-09 00:56:53,202 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-09 00:56:53,202 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 12:56:52" (3/4) ... [2025-03-09 00:56:53,205 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-03-09 00:56:53,207 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thr2 [2025-03-09 00:56:53,207 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thr1 [2025-03-09 00:56:53,210 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 28 nodes and edges [2025-03-09 00:56:53,210 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2025-03-09 00:56:53,211 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2025-03-09 00:56:53,211 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2025-03-09 00:56:53,263 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-09 00:56:53,263 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-03-09 00:56:53,263 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-09 00:56:53,264 INFO L158 Benchmark]: Toolchain (without parser) took 1974.21ms. Allocated memory is still 142.6MB. Free memory was 110.4MB in the beginning and 100.0MB in the end (delta: 10.3MB). Peak memory consumption was 9.7MB. Max. memory is 16.1GB. [2025-03-09 00:56:53,265 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 201.3MB. Free memory is still 123.1MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-09 00:56:53,265 INFO L158 Benchmark]: CACSL2BoogieTranslator took 339.48ms. Allocated memory is still 142.6MB. Free memory was 110.4MB in the beginning and 91.2MB in the end (delta: 19.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-09 00:56:53,265 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.29ms. Allocated memory is still 142.6MB. Free memory was 90.8MB in the beginning and 89.5MB in the end (delta: 1.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-09 00:56:53,266 INFO L158 Benchmark]: Boogie Preprocessor took 21.72ms. Allocated memory is still 142.6MB. Free memory was 89.5MB in the beginning and 88.1MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-09 00:56:53,266 INFO L158 Benchmark]: IcfgBuilder took 319.68ms. Allocated memory is still 142.6MB. Free memory was 88.1MB in the beginning and 71.0MB in the end (delta: 17.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-09 00:56:53,267 INFO L158 Benchmark]: TraceAbstraction took 1197.66ms. Allocated memory is still 142.6MB. Free memory was 70.1MB in the beginning and 105.5MB in the end (delta: -35.4MB). Peak memory consumption was 32.4MB. Max. memory is 16.1GB. [2025-03-09 00:56:53,267 INFO L158 Benchmark]: Witness Printer took 61.65ms. Allocated memory is still 142.6MB. Free memory was 105.5MB in the beginning and 100.0MB in the end (delta: 5.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-09 00:56:53,268 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 201.3MB. Free memory is still 123.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 339.48ms. Allocated memory is still 142.6MB. Free memory was 110.4MB in the beginning and 91.2MB in the end (delta: 19.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 29.29ms. Allocated memory is still 142.6MB. Free memory was 90.8MB in the beginning and 89.5MB in the end (delta: 1.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 21.72ms. Allocated memory is still 142.6MB. Free memory was 89.5MB in the beginning and 88.1MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 319.68ms. Allocated memory is still 142.6MB. Free memory was 88.1MB in the beginning and 71.0MB in the end (delta: 17.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1197.66ms. Allocated memory is still 142.6MB. Free memory was 70.1MB in the beginning and 105.5MB in the end (delta: -35.4MB). Peak memory consumption was 32.4MB. Max. memory is 16.1GB. * Witness Printer took 61.65ms. Allocated memory is still 142.6MB. Free memory was 105.5MB in the beginning and 100.0MB in the end (delta: 5.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 12]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 12]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 752]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 61 locations, 72 edges, 7 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: 1.1s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 66 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 56 mSDsluCounter, 8 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 258 IncrementalHoareTripleChecker+Invalid, 267 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 6 mSDtfsCounter, 258 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=186occurred in iteration=4, InterpolantAutomatonStates: 17, 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, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 73 NumberOfCodeBlocks, 73 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 68 ConstructedInterpolants, 0 QuantifiedInterpolants, 144 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-03-09 00:56:53,283 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