./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/pthread-atomic/dekker.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version c00e63dc Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/pthread-atomic/dekker.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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 07d1abd007d632a3b4dac260b28d2ba8a005f15955283342b1ec38e7417e11f4 --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 12:35:34,103 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 12:35:34,160 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2025-02-06 12:35:34,167 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 12:35:34,167 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 12:35:34,181 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 12:35:34,182 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 12:35:34,182 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 12:35:34,182 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 12:35:34,182 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 12:35:34,183 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 12:35:34,183 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 12:35:34,183 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 12:35:34,183 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 12:35:34,183 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 12:35:34,183 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 12:35:34,183 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-06 12:35:34,183 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 12:35:34,183 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-06 12:35:34,184 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 12:35:34,184 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-02-06 12:35:34,184 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-02-06 12:35:34,184 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-02-06 12:35:34,184 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 12:35:34,184 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-06 12:35:34,184 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-06 12:35:34,184 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-06 12:35:34,184 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 12:35:34,184 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 12:35:34,184 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 12:35:34,184 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 12:35:34,185 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 12:35:34,185 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 12:35:34,185 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 12:35:34,185 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 12:35:34,185 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 12:35:34,185 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 12:35:34,185 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 12:35:34,185 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 12:35:34,185 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 12:35:34,185 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 12:35:34,185 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 12:35:34,185 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-jdk21/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 -> 07d1abd007d632a3b4dac260b28d2ba8a005f15955283342b1ec38e7417e11f4 [2025-02-06 12:35:34,358 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 12:35:34,363 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 12:35:34,366 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 12:35:34,367 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 12:35:34,367 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 12:35:34,368 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-atomic/dekker.i [2025-02-06 12:35:35,518 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/c25c01dd5/995db0edd4dc48d8a5cc02c875d16e9d/FLAG33a7a4cc9 [2025-02-06 12:35:35,893 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 12:35:35,893 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-atomic/dekker.i [2025-02-06 12:35:35,912 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/c25c01dd5/995db0edd4dc48d8a5cc02c875d16e9d/FLAG33a7a4cc9 [2025-02-06 12:35:36,103 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/c25c01dd5/995db0edd4dc48d8a5cc02c875d16e9d [2025-02-06 12:35:36,105 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 12:35:36,107 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 12:35:36,108 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 12:35:36,108 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 12:35:36,116 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 12:35:36,117 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 12:35:36" (1/1) ... [2025-02-06 12:35:36,117 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33f67c65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:35:36, skipping insertion in model container [2025-02-06 12:35:36,117 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 12:35:36" (1/1) ... [2025-02-06 12:35:36,148 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 12:35:36,384 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 12:35:36,392 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 12:35:36,433 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 12:35:36,455 INFO L204 MainTranslator]: Completed translation [2025-02-06 12:35:36,456 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:35:36 WrapperNode [2025-02-06 12:35:36,456 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 12:35:36,457 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 12:35:36,457 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 12:35:36,457 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 12:35:36,461 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:35:36" (1/1) ... [2025-02-06 12:35:36,468 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:35:36" (1/1) ... [2025-02-06 12:35:36,481 INFO L138 Inliner]: procedures = 167, calls = 11, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 78 [2025-02-06 12:35:36,482 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 12:35:36,483 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 12:35:36,483 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 12:35:36,483 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 12:35:36,487 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:35:36" (1/1) ... [2025-02-06 12:35:36,487 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:35:36" (1/1) ... [2025-02-06 12:35:36,489 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:35:36" (1/1) ... [2025-02-06 12:35:36,495 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]. [2025-02-06 12:35:36,495 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:35:36" (1/1) ... [2025-02-06 12:35:36,495 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:35:36" (1/1) ... [2025-02-06 12:35:36,497 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:35:36" (1/1) ... [2025-02-06 12:35:36,498 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:35:36" (1/1) ... [2025-02-06 12:35:36,498 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:35:36" (1/1) ... [2025-02-06 12:35:36,499 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:35:36" (1/1) ... [2025-02-06 12:35:36,500 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 12:35:36,501 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 12:35:36,501 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 12:35:36,501 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 12:35:36,501 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:35:36" (1/1) ... [2025-02-06 12:35:36,505 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 12:35:36,514 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 12:35:36,527 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-06 12:35:36,532 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-06 12:35:36,545 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2025-02-06 12:35:36,545 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2025-02-06 12:35:36,545 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2025-02-06 12:35:36,545 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2025-02-06 12:35:36,545 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 12:35:36,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-06 12:35:36,545 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 12:35:36,545 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 12:35:36,546 WARN L227 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-02-06 12:35:36,642 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 12:35:36,643 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 12:35:36,761 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-06 12:35:36,761 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 12:35:36,830 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 12:35:36,830 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 12:35:36,830 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 12:35:36 BoogieIcfgContainer [2025-02-06 12:35:36,830 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 12:35:36,832 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 12:35:36,832 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 12:35:36,835 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 12:35:36,835 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 12:35:36" (1/3) ... [2025-02-06 12:35:36,836 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25f113c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 12:35:36, skipping insertion in model container [2025-02-06 12:35:36,836 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:35:36" (2/3) ... [2025-02-06 12:35:36,836 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25f113c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 12:35:36, skipping insertion in model container [2025-02-06 12:35:36,836 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 12:35:36" (3/3) ... [2025-02-06 12:35:36,837 INFO L128 eAbstractionObserver]: Analyzing ICFG dekker.i [2025-02-06 12:35:36,846 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 12:35:36,847 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG dekker.i that has 3 procedures, 43 locations, 1 initial locations, 4 loop locations, and 3 error locations. [2025-02-06 12:35:36,847 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-06 12:35:36,874 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-02-06 12:35:36,893 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 49 places, 52 transitions, 118 flow [2025-02-06 12:35:36,912 INFO L124 PetriNetUnfolderBase]: 10/50 cut-off events. [2025-02-06 12:35:36,913 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-02-06 12:35:36,915 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59 conditions, 50 events. 10/50 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 122 event pairs, 0 based on Foata normal form. 0/37 useless extension candidates. Maximal degree in co-relation 45. Up to 3 conditions per place. [2025-02-06 12:35:36,916 INFO L82 GeneralOperation]: Start removeDead. Operand has 49 places, 52 transitions, 118 flow [2025-02-06 12:35:36,918 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 46 places, 49 transitions, 110 flow [2025-02-06 12:35:36,922 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 12:35:36,929 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;@23abc6ff, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 12:35:36,932 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2025-02-06 12:35:36,941 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-06 12:35:36,944 INFO L124 PetriNetUnfolderBase]: 6/31 cut-off events. [2025-02-06 12:35:36,945 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 12:35:36,945 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:35:36,946 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:35:36,946 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)] === [2025-02-06 12:35:36,950 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:35:36,954 INFO L85 PathProgramCache]: Analyzing trace with hash -1882644244, now seen corresponding path program 1 times [2025-02-06 12:35:36,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 12:35:36,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366466082] [2025-02-06 12:35:36,960 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:35:36,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 12:35:37,038 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-02-06 12:35:37,059 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-02-06 12:35:37,063 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:35:37,063 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:35:37,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:35:37,173 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 12:35:37,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366466082] [2025-02-06 12:35:37,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [366466082] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:35:37,176 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:35:37,176 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 12:35:37,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704946718] [2025-02-06 12:35:37,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:35:37,181 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 12:35:37,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 12:35:37,199 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 12:35:37,199 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 12:35:37,206 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 52 [2025-02-06 12:35:37,208 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 49 transitions, 110 flow. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:35:37,208 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:35:37,208 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 52 [2025-02-06 12:35:37,209 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:35:37,374 INFO L124 PetriNetUnfolderBase]: 285/590 cut-off events. [2025-02-06 12:35:37,374 INFO L125 PetriNetUnfolderBase]: For 33/33 co-relation queries the response was YES. [2025-02-06 12:35:37,376 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1122 conditions, 590 events. 285/590 cut-off events. For 33/33 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 3166 event pairs, 92 based on Foata normal form. 94/643 useless extension candidates. Maximal degree in co-relation 1029. Up to 256 conditions per place. [2025-02-06 12:35:37,381 INFO L140 encePairwiseOnDemand]: 43/52 looper letters, 35 selfloop transitions, 3 changer transitions 0/57 dead transitions. [2025-02-06 12:35:37,381 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 57 transitions, 208 flow [2025-02-06 12:35:37,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 12:35:37,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 12:35:37,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 115 transitions. [2025-02-06 12:35:37,389 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7371794871794872 [2025-02-06 12:35:37,390 INFO L175 Difference]: Start difference. First operand has 46 places, 49 transitions, 110 flow. Second operand 3 states and 115 transitions. [2025-02-06 12:35:37,390 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 57 transitions, 208 flow [2025-02-06 12:35:37,393 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 57 transitions, 196 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-02-06 12:35:37,395 INFO L231 Difference]: Finished difference. Result has 44 places, 44 transitions, 110 flow [2025-02-06 12:35:37,396 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=90, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=110, PETRI_PLACES=44, PETRI_TRANSITIONS=44} [2025-02-06 12:35:37,399 INFO L279 CegarLoopForPetriNet]: 46 programPoint places, -2 predicate places. [2025-02-06 12:35:37,399 INFO L471 AbstractCegarLoop]: Abstraction has has 44 places, 44 transitions, 110 flow [2025-02-06 12:35:37,399 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:35:37,399 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:35:37,399 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:35:37,399 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-06 12:35:37,400 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)] === [2025-02-06 12:35:37,400 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:35:37,400 INFO L85 PathProgramCache]: Analyzing trace with hash -214385757, now seen corresponding path program 1 times [2025-02-06 12:35:37,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 12:35:37,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393345377] [2025-02-06 12:35:37,400 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:35:37,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 12:35:37,407 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-02-06 12:35:37,411 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-02-06 12:35:37,411 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:35:37,411 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:35:37,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:35:37,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 12:35:37,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393345377] [2025-02-06 12:35:37,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [393345377] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:35:37,441 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:35:37,441 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 12:35:37,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382358825] [2025-02-06 12:35:37,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:35:37,442 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 12:35:37,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 12:35:37,442 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 12:35:37,442 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 12:35:37,446 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 52 [2025-02-06 12:35:37,446 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 44 transitions, 110 flow. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 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) [2025-02-06 12:35:37,446 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:35:37,446 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 52 [2025-02-06 12:35:37,446 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:35:37,521 INFO L124 PetriNetUnfolderBase]: 269/556 cut-off events. [2025-02-06 12:35:37,521 INFO L125 PetriNetUnfolderBase]: For 87/87 co-relation queries the response was YES. [2025-02-06 12:35:37,523 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1135 conditions, 556 events. 269/556 cut-off events. For 87/87 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 2843 event pairs, 114 based on Foata normal form. 27/561 useless extension candidates. Maximal degree in co-relation 359. Up to 300 conditions per place. [2025-02-06 12:35:37,525 INFO L140 encePairwiseOnDemand]: 48/52 looper letters, 35 selfloop transitions, 2 changer transitions 0/56 dead transitions. [2025-02-06 12:35:37,525 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 56 transitions, 210 flow [2025-02-06 12:35:37,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 12:35:37,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 12:35:37,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 108 transitions. [2025-02-06 12:35:37,526 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6923076923076923 [2025-02-06 12:35:37,527 INFO L175 Difference]: Start difference. First operand has 44 places, 44 transitions, 110 flow. Second operand 3 states and 108 transitions. [2025-02-06 12:35:37,527 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 56 transitions, 210 flow [2025-02-06 12:35:37,528 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 56 transitions, 204 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-06 12:35:37,528 INFO L231 Difference]: Finished difference. Result has 45 places, 44 transitions, 114 flow [2025-02-06 12:35:37,529 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=114, PETRI_PLACES=45, PETRI_TRANSITIONS=44} [2025-02-06 12:35:37,529 INFO L279 CegarLoopForPetriNet]: 46 programPoint places, -1 predicate places. [2025-02-06 12:35:37,529 INFO L471 AbstractCegarLoop]: Abstraction has has 45 places, 44 transitions, 114 flow [2025-02-06 12:35:37,529 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 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) [2025-02-06 12:35:37,529 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:35:37,530 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:35:37,530 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-06 12:35:37,530 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)] === [2025-02-06 12:35:37,530 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:35:37,530 INFO L85 PathProgramCache]: Analyzing trace with hash 853948868, now seen corresponding path program 1 times [2025-02-06 12:35:37,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 12:35:37,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1308098379] [2025-02-06 12:35:37,531 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:35:37,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 12:35:37,537 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-02-06 12:35:37,540 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-02-06 12:35:37,540 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:35:37,540 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:35:37,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:35:37,591 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 12:35:37,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1308098379] [2025-02-06 12:35:37,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1308098379] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:35:37,591 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:35:37,591 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 12:35:37,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874191593] [2025-02-06 12:35:37,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:35:37,592 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 12:35:37,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 12:35:37,592 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 12:35:37,592 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 12:35:37,594 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 52 [2025-02-06 12:35:37,594 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 44 transitions, 114 flow. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 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) [2025-02-06 12:35:37,594 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:35:37,594 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 52 [2025-02-06 12:35:37,594 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:35:37,653 INFO L124 PetriNetUnfolderBase]: 213/452 cut-off events. [2025-02-06 12:35:37,653 INFO L125 PetriNetUnfolderBase]: For 94/94 co-relation queries the response was YES. [2025-02-06 12:35:37,654 INFO L83 FinitePrefix]: Finished finitePrefix Result has 904 conditions, 452 events. 213/452 cut-off events. For 94/94 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 2131 event pairs, 99 based on Foata normal form. 8/428 useless extension candidates. Maximal degree in co-relation 361. Up to 213 conditions per place. [2025-02-06 12:35:37,656 INFO L140 encePairwiseOnDemand]: 47/52 looper letters, 28 selfloop transitions, 4 changer transitions 0/50 dead transitions. [2025-02-06 12:35:37,656 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 50 transitions, 191 flow [2025-02-06 12:35:37,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 12:35:37,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 12:35:37,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 104 transitions. [2025-02-06 12:35:37,657 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6666666666666666 [2025-02-06 12:35:37,657 INFO L175 Difference]: Start difference. First operand has 45 places, 44 transitions, 114 flow. Second operand 3 states and 104 transitions. [2025-02-06 12:35:37,657 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 50 transitions, 191 flow [2025-02-06 12:35:37,658 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 50 transitions, 189 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-06 12:35:37,659 INFO L231 Difference]: Finished difference. Result has 44 places, 41 transitions, 120 flow [2025-02-06 12:35:37,659 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=120, PETRI_PLACES=44, PETRI_TRANSITIONS=41} [2025-02-06 12:35:37,659 INFO L279 CegarLoopForPetriNet]: 46 programPoint places, -2 predicate places. [2025-02-06 12:35:37,659 INFO L471 AbstractCegarLoop]: Abstraction has has 44 places, 41 transitions, 120 flow [2025-02-06 12:35:37,660 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 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) [2025-02-06 12:35:37,660 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:35:37,660 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:35:37,660 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-06 12:35:37,660 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)] === [2025-02-06 12:35:37,660 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:35:37,660 INFO L85 PathProgramCache]: Analyzing trace with hash -257249562, now seen corresponding path program 2 times [2025-02-06 12:35:37,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 12:35:37,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724134418] [2025-02-06 12:35:37,661 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 12:35:37,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 12:35:37,666 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 13 statements into 1 equivalence classes. [2025-02-06 12:35:37,670 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-02-06 12:35:37,670 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-06 12:35:37,670 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:35:37,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:35:37,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 12:35:37,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724134418] [2025-02-06 12:35:37,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [724134418] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:35:37,693 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:35:37,693 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 12:35:37,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104022793] [2025-02-06 12:35:37,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:35:37,693 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 12:35:37,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 12:35:37,694 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 12:35:37,694 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 12:35:37,695 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 52 [2025-02-06 12:35:37,696 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 41 transitions, 120 flow. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 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) [2025-02-06 12:35:37,696 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:35:37,696 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 52 [2025-02-06 12:35:37,696 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:35:37,761 INFO L124 PetriNetUnfolderBase]: 177/375 cut-off events. [2025-02-06 12:35:37,761 INFO L125 PetriNetUnfolderBase]: For 156/156 co-relation queries the response was YES. [2025-02-06 12:35:37,762 INFO L83 FinitePrefix]: Finished finitePrefix Result has 804 conditions, 375 events. 177/375 cut-off events. For 156/156 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1568 event pairs, 76 based on Foata normal form. 6/344 useless extension candidates. Maximal degree in co-relation 247. Up to 170 conditions per place. [2025-02-06 12:35:37,763 INFO L140 encePairwiseOnDemand]: 47/52 looper letters, 27 selfloop transitions, 4 changer transitions 0/47 dead transitions. [2025-02-06 12:35:37,763 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 47 transitions, 205 flow [2025-02-06 12:35:37,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 12:35:37,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 12:35:37,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 103 transitions. [2025-02-06 12:35:37,764 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6602564102564102 [2025-02-06 12:35:37,764 INFO L175 Difference]: Start difference. First operand has 44 places, 41 transitions, 120 flow. Second operand 3 states and 103 transitions. [2025-02-06 12:35:37,764 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 47 transitions, 205 flow [2025-02-06 12:35:37,765 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 47 transitions, 185 flow, removed 2 selfloop flow, removed 2 redundant places. [2025-02-06 12:35:37,766 INFO L231 Difference]: Finished difference. Result has 42 places, 38 transitions, 114 flow [2025-02-06 12:35:37,766 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=114, PETRI_PLACES=42, PETRI_TRANSITIONS=38} [2025-02-06 12:35:37,766 INFO L279 CegarLoopForPetriNet]: 46 programPoint places, -4 predicate places. [2025-02-06 12:35:37,766 INFO L471 AbstractCegarLoop]: Abstraction has has 42 places, 38 transitions, 114 flow [2025-02-06 12:35:37,767 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 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) [2025-02-06 12:35:37,767 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:35:37,770 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] [2025-02-06 12:35:37,771 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-06 12:35:37,771 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)] === [2025-02-06 12:35:37,771 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:35:37,771 INFO L85 PathProgramCache]: Analyzing trace with hash -575557356, now seen corresponding path program 1 times [2025-02-06 12:35:37,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 12:35:37,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209086985] [2025-02-06 12:35:37,771 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:35:37,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 12:35:37,777 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 23 statements into 1 equivalence classes. [2025-02-06 12:35:37,780 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-02-06 12:35:37,780 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:35:37,780 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:35:37,804 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:35:37,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 12:35:37,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1209086985] [2025-02-06 12:35:37,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1209086985] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:35:37,804 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:35:37,804 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-06 12:35:37,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807648579] [2025-02-06 12:35:37,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:35:37,804 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 12:35:37,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 12:35:37,805 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 12:35:37,805 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 12:35:37,806 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 52 [2025-02-06 12:35:37,806 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 38 transitions, 114 flow. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 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) [2025-02-06 12:35:37,806 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:35:37,807 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 52 [2025-02-06 12:35:37,807 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:35:37,842 INFO L124 PetriNetUnfolderBase]: 166/338 cut-off events. [2025-02-06 12:35:37,842 INFO L125 PetriNetUnfolderBase]: For 214/219 co-relation queries the response was YES. [2025-02-06 12:35:37,843 INFO L83 FinitePrefix]: Finished finitePrefix Result has 793 conditions, 338 events. 166/338 cut-off events. For 214/219 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1399 event pairs, 119 based on Foata normal form. 2/307 useless extension candidates. Maximal degree in co-relation 402. Up to 274 conditions per place. [2025-02-06 12:35:37,843 INFO L140 encePairwiseOnDemand]: 50/52 looper letters, 0 selfloop transitions, 0 changer transitions 37/37 dead transitions. [2025-02-06 12:35:37,843 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 37 transitions, 156 flow [2025-02-06 12:35:37,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 12:35:37,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 12:35:37,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 91 transitions. [2025-02-06 12:35:37,846 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5833333333333334 [2025-02-06 12:35:37,846 INFO L175 Difference]: Start difference. First operand has 42 places, 38 transitions, 114 flow. Second operand 3 states and 91 transitions. [2025-02-06 12:35:37,846 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 37 transitions, 156 flow [2025-02-06 12:35:37,847 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 37 transitions, 143 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-02-06 12:35:37,847 INFO L231 Difference]: Finished difference. Result has 39 places, 0 transitions, 0 flow [2025-02-06 12:35:37,847 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=99, PETRI_DIFFERENCE_MINUEND_PLACES=37, 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=39, PETRI_TRANSITIONS=0} [2025-02-06 12:35:37,848 INFO L279 CegarLoopForPetriNet]: 46 programPoint places, -7 predicate places. [2025-02-06 12:35:37,848 INFO L471 AbstractCegarLoop]: Abstraction has has 39 places, 0 transitions, 0 flow [2025-02-06 12:35:37,848 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 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) [2025-02-06 12:35:37,850 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thr2Err0ASSERT_VIOLATIONMEMORY_LEAK (6 of 7 remaining) [2025-02-06 12:35:37,850 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONMEMORY_LEAK (5 of 7 remaining) [2025-02-06 12:35:37,850 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (4 of 7 remaining) [2025-02-06 12:35:37,850 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 7 remaining) [2025-02-06 12:35:37,850 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 7 remaining) [2025-02-06 12:35:37,850 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thr2Err0ASSERT_VIOLATIONMEMORY_LEAK (1 of 7 remaining) [2025-02-06 12:35:37,851 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONMEMORY_LEAK (0 of 7 remaining) [2025-02-06 12:35:37,851 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-06 12:35:37,851 INFO L422 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1] [2025-02-06 12:35:37,857 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-02-06 12:35:37,857 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-06 12:35:37,860 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.02 12:35:37 BasicIcfg [2025-02-06 12:35:37,860 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-06 12:35:37,861 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-06 12:35:37,861 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-06 12:35:37,861 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-06 12:35:37,861 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 12:35:36" (3/4) ... [2025-02-06 12:35:37,862 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-02-06 12:35:37,864 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thr2 [2025-02-06 12:35:37,864 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thr1 [2025-02-06 12:35:37,866 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 33 nodes and edges [2025-02-06 12:35:37,866 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2025-02-06 12:35:37,866 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2025-02-06 12:35:37,866 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-02-06 12:35:37,910 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-02-06 12:35:37,910 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-02-06 12:35:37,910 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-06 12:35:37,911 INFO L158 Benchmark]: Toolchain (without parser) took 1804.05ms. Allocated memory is still 142.6MB. Free memory was 105.0MB in the beginning and 80.8MB in the end (delta: 24.2MB). Peak memory consumption was 28.2MB. Max. memory is 16.1GB. [2025-02-06 12:35:37,911 INFO L158 Benchmark]: CDTParser took 0.41ms. Allocated memory is still 201.3MB. Free memory is still 128.5MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 12:35:37,911 INFO L158 Benchmark]: CACSL2BoogieTranslator took 348.73ms. Allocated memory is still 142.6MB. Free memory was 105.0MB in the beginning and 85.4MB in the end (delta: 19.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-06 12:35:37,911 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.57ms. Allocated memory is still 142.6MB. Free memory was 85.4MB in the beginning and 83.9MB in the end (delta: 1.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-06 12:35:37,911 INFO L158 Benchmark]: Boogie Preprocessor took 17.35ms. Allocated memory is still 142.6MB. Free memory was 83.9MB in the beginning and 82.2MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 12:35:37,912 INFO L158 Benchmark]: IcfgBuilder took 329.83ms. Allocated memory is still 142.6MB. Free memory was 82.2MB in the beginning and 62.9MB in the end (delta: 19.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-06 12:35:37,912 INFO L158 Benchmark]: TraceAbstraction took 1028.27ms. Allocated memory is still 142.6MB. Free memory was 62.9MB in the beginning and 85.6MB in the end (delta: -22.7MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 12:35:37,912 INFO L158 Benchmark]: Witness Printer took 49.54ms. Allocated memory is still 142.6MB. Free memory was 85.6MB in the beginning and 80.8MB in the end (delta: 4.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-06 12:35:37,913 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.41ms. Allocated memory is still 201.3MB. Free memory is still 128.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 348.73ms. Allocated memory is still 142.6MB. Free memory was 105.0MB in the beginning and 85.4MB in the end (delta: 19.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 25.57ms. Allocated memory is still 142.6MB. Free memory was 85.4MB in the beginning and 83.9MB in the end (delta: 1.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 17.35ms. Allocated memory is still 142.6MB. Free memory was 83.9MB in the beginning and 82.2MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 329.83ms. Allocated memory is still 142.6MB. Free memory was 82.2MB in the beginning and 62.9MB in the end (delta: 19.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1028.27ms. Allocated memory is still 142.6MB. Free memory was 62.9MB in the beginning and 85.6MB in the end (delta: -22.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 49.54ms. Allocated memory is still 142.6MB. Free memory was 85.6MB in the beginning and 80.8MB in the end (delta: 4.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 16]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 16]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 779]: 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, 77 locations, 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: 1.0s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 72 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 60 mSDsluCounter, 3 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 224 IncrementalHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 3 mSDtfsCounter, 224 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=120occurred in iteration=3, InterpolantAutomatonStates: 15, 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, 0.2s InterpolantComputationTime, 67 NumberOfCodeBlocks, 67 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 62 ConstructedInterpolants, 0 QuantifiedInterpolants, 124 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! [2025-02-06 12:35:37,924 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/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