./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/pthread-wmm/safe003_tso.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-wmm/safe003_tso.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 cc60b32bd5539dadbcbe1bdf86f21665a573ec180c72ba491085256c00923963 --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 12:47:04,875 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 12:47:04,915 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2025-02-06 12:47:04,923 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 12:47:04,926 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 12:47:04,946 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 12:47:04,947 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 12:47:04,948 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 12:47:04,948 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 12:47:04,948 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 12:47:04,948 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 12:47:04,949 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 12:47:04,949 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 12:47:04,949 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 12:47:04,949 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 12:47:04,949 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 12:47:04,949 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-06 12:47:04,950 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 12:47:04,950 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-06 12:47:04,950 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 12:47:04,950 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-02-06 12:47:04,950 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-02-06 12:47:04,950 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-02-06 12:47:04,951 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 12:47:04,951 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-06 12:47:04,951 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-06 12:47:04,951 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-06 12:47:04,951 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 12:47:04,951 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 12:47:04,951 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 12:47:04,951 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 12:47:04,951 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 12:47:04,951 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 12:47:04,951 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 12:47:04,951 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 12:47:04,952 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 12:47:04,952 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 12:47:04,952 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 12:47:04,952 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 12:47:04,952 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 12:47:04,952 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 12:47:04,952 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 12:47:04,953 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 -> cc60b32bd5539dadbcbe1bdf86f21665a573ec180c72ba491085256c00923963 [2025-02-06 12:47:05,195 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 12:47:05,200 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 12:47:05,204 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 12:47:05,205 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 12:47:05,205 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 12:47:05,206 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe003_tso.i [2025-02-06 12:47:06,354 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/5ed7f81c1/2338d89f3bc94f429be7e680b26f5ade/FLAG276a495e8 [2025-02-06 12:47:06,870 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 12:47:06,872 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe003_tso.i [2025-02-06 12:47:06,886 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/5ed7f81c1/2338d89f3bc94f429be7e680b26f5ade/FLAG276a495e8 [2025-02-06 12:47:07,000 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/5ed7f81c1/2338d89f3bc94f429be7e680b26f5ade [2025-02-06 12:47:07,002 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 12:47:07,004 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 12:47:07,006 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 12:47:07,006 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 12:47:07,011 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 12:47:07,011 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 12:47:07" (1/1) ... [2025-02-06 12:47:07,012 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37c9112d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:47:07, skipping insertion in model container [2025-02-06 12:47:07,012 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 12:47:07" (1/1) ... [2025-02-06 12:47:07,070 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 12:47:07,385 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 12:47:07,395 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 12:47:07,457 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 12:47:07,491 INFO L204 MainTranslator]: Completed translation [2025-02-06 12:47:07,492 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:47:07 WrapperNode [2025-02-06 12:47:07,493 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 12:47:07,494 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 12:47:07,494 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 12:47:07,494 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 12:47:07,499 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:47:07" (1/1) ... [2025-02-06 12:47:07,516 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:47:07" (1/1) ... [2025-02-06 12:47:07,545 INFO L138 Inliner]: procedures = 175, calls = 42, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 60 [2025-02-06 12:47:07,546 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 12:47:07,546 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 12:47:07,546 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 12:47:07,546 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 12:47:07,569 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:47:07" (1/1) ... [2025-02-06 12:47:07,569 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:47:07" (1/1) ... [2025-02-06 12:47:07,571 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:47:07" (1/1) ... [2025-02-06 12:47:07,595 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 12:47:07,596 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:47:07" (1/1) ... [2025-02-06 12:47:07,597 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:47:07" (1/1) ... [2025-02-06 12:47:07,599 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:47:07" (1/1) ... [2025-02-06 12:47:07,604 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:47:07" (1/1) ... [2025-02-06 12:47:07,605 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:47:07" (1/1) ... [2025-02-06 12:47:07,609 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:47:07" (1/1) ... [2025-02-06 12:47:07,610 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 12:47:07,611 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 12:47:07,611 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 12:47:07,611 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 12:47:07,612 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:47:07" (1/1) ... [2025-02-06 12:47:07,619 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 12:47:07,660 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 12:47:07,697 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 12:47:07,754 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 12:47:07,771 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-02-06 12:47:07,771 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 12:47:07,772 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2025-02-06 12:47:07,772 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2025-02-06 12:47:07,772 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2025-02-06 12:47:07,772 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2025-02-06 12:47:07,772 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2025-02-06 12:47:07,772 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2025-02-06 12:47:07,772 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-06 12:47:07,772 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-02-06 12:47:07,772 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 12:47:07,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 12:47:07,773 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 12:47:07,945 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 12:47:07,950 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 12:47:08,155 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-06 12:47:08,155 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 12:47:08,315 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 12:47:08,315 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 12:47:08,316 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 12:47:08 BoogieIcfgContainer [2025-02-06 12:47:08,316 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 12:47:08,318 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 12:47:08,319 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 12:47:08,322 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 12:47:08,322 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 12:47:07" (1/3) ... [2025-02-06 12:47:08,322 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@734a83bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 12:47:08, skipping insertion in model container [2025-02-06 12:47:08,324 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:47:07" (2/3) ... [2025-02-06 12:47:08,324 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@734a83bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 12:47:08, skipping insertion in model container [2025-02-06 12:47:08,324 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 12:47:08" (3/3) ... [2025-02-06 12:47:08,325 INFO L128 eAbstractionObserver]: Analyzing ICFG safe003_tso.i [2025-02-06 12:47:08,337 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 12:47:08,339 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG safe003_tso.i that has 4 procedures, 42 locations, 1 initial locations, 0 loop locations, and 2 error locations. [2025-02-06 12:47:08,340 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-06 12:47:08,381 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-02-06 12:47:08,407 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 51 places, 43 transitions, 98 flow [2025-02-06 12:47:08,431 INFO L124 PetriNetUnfolderBase]: 2/40 cut-off events. [2025-02-06 12:47:08,432 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 12:47:08,436 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50 conditions, 40 events. 2/40 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 71 event pairs, 0 based on Foata normal form. 0/36 useless extension candidates. Maximal degree in co-relation 42. Up to 2 conditions per place. [2025-02-06 12:47:08,437 INFO L82 GeneralOperation]: Start removeDead. Operand has 51 places, 43 transitions, 98 flow [2025-02-06 12:47:08,440 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 47 places, 39 transitions, 87 flow [2025-02-06 12:47:08,449 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 12:47:08,463 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;@4db1b725, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 12:47:08,463 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2025-02-06 12:47:08,485 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-06 12:47:08,485 INFO L124 PetriNetUnfolderBase]: 2/37 cut-off events. [2025-02-06 12:47:08,485 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 12:47:08,486 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:47:08,486 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:47:08,487 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-02-06 12:47:08,490 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:47:08,491 INFO L85 PathProgramCache]: Analyzing trace with hash -1029472030, now seen corresponding path program 1 times [2025-02-06 12:47:08,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 12:47:08,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491343692] [2025-02-06 12:47:08,500 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:47:08,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 12:47:08,567 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-02-06 12:47:08,588 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-02-06 12:47:08,588 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:47:08,589 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:47:08,723 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 12:47:08,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 12:47:08,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [491343692] [2025-02-06 12:47:08,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [491343692] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:47:08,726 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:47:08,726 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-06 12:47:08,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240750649] [2025-02-06 12:47:08,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:47:08,732 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 12:47:08,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 12:47:08,749 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 12:47:08,749 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 12:47:08,751 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2025-02-06 12:47:08,753 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 39 transitions, 87 flow. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 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 12:47:08,753 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:47:08,753 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2025-02-06 12:47:08,753 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:47:09,327 INFO L124 PetriNetUnfolderBase]: 4775/7427 cut-off events. [2025-02-06 12:47:09,328 INFO L125 PetriNetUnfolderBase]: For 34/34 co-relation queries the response was YES. [2025-02-06 12:47:09,348 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14322 conditions, 7427 events. 4775/7427 cut-off events. For 34/34 co-relation queries the response was YES. Maximal size of possible extension queue 294. Compared 43781 event pairs, 4775 based on Foata normal form. 648/8026 useless extension candidates. Maximal degree in co-relation 14311. Up to 6804 conditions per place. [2025-02-06 12:47:09,381 INFO L140 encePairwiseOnDemand]: 39/43 looper letters, 27 selfloop transitions, 1 changer transitions 1/35 dead transitions. [2025-02-06 12:47:09,382 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 35 transitions, 137 flow [2025-02-06 12:47:09,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 12:47:09,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 12:47:09,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 59 transitions. [2025-02-06 12:47:09,392 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4573643410852713 [2025-02-06 12:47:09,394 INFO L175 Difference]: Start difference. First operand has 47 places, 39 transitions, 87 flow. Second operand 3 states and 59 transitions. [2025-02-06 12:47:09,395 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 35 transitions, 137 flow [2025-02-06 12:47:09,398 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 35 transitions, 134 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-02-06 12:47:09,401 INFO L231 Difference]: Finished difference. Result has 44 places, 34 transitions, 76 flow [2025-02-06 12:47:09,403 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=76, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=76, PETRI_PLACES=44, PETRI_TRANSITIONS=34} [2025-02-06 12:47:09,406 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, -3 predicate places. [2025-02-06 12:47:09,408 INFO L471 AbstractCegarLoop]: Abstraction has has 44 places, 34 transitions, 76 flow [2025-02-06 12:47:09,409 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 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 12:47:09,409 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:47:09,409 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:47:09,409 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-06 12:47:09,409 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-02-06 12:47:09,410 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:47:09,410 INFO L85 PathProgramCache]: Analyzing trace with hash -1029471599, now seen corresponding path program 1 times [2025-02-06 12:47:09,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 12:47:09,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027165007] [2025-02-06 12:47:09,410 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:47:09,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 12:47:09,427 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-02-06 12:47:09,450 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-02-06 12:47:09,450 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:47:09,450 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:47:09,726 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 12:47:09,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 12:47:09,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1027165007] [2025-02-06 12:47:09,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1027165007] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:47:09,726 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:47:09,727 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 12:47:09,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516939801] [2025-02-06 12:47:09,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:47:09,727 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 12:47:09,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 12:47:09,728 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 12:47:09,729 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-06 12:47:09,731 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2025-02-06 12:47:09,731 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 34 transitions, 76 flow. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:47:09,731 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:47:09,731 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2025-02-06 12:47:09,731 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:47:10,395 INFO L124 PetriNetUnfolderBase]: 5483/8171 cut-off events. [2025-02-06 12:47:10,396 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 12:47:10,408 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16133 conditions, 8171 events. 5483/8171 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 306. Compared 45503 event pairs, 1163 based on Foata normal form. 0/8014 useless extension candidates. Maximal degree in co-relation 16127. Up to 3973 conditions per place. [2025-02-06 12:47:10,431 INFO L140 encePairwiseOnDemand]: 37/43 looper letters, 40 selfloop transitions, 2 changer transitions 69/116 dead transitions. [2025-02-06 12:47:10,431 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 116 transitions, 462 flow [2025-02-06 12:47:10,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-06 12:47:10,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-02-06 12:47:10,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 185 transitions. [2025-02-06 12:47:10,434 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5377906976744186 [2025-02-06 12:47:10,435 INFO L175 Difference]: Start difference. First operand has 44 places, 34 transitions, 76 flow. Second operand 8 states and 185 transitions. [2025-02-06 12:47:10,435 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 116 transitions, 462 flow [2025-02-06 12:47:10,436 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 116 transitions, 461 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-06 12:47:10,438 INFO L231 Difference]: Finished difference. Result has 54 places, 33 transitions, 89 flow [2025-02-06 12:47:10,439 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=75, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=89, PETRI_PLACES=54, PETRI_TRANSITIONS=33} [2025-02-06 12:47:10,439 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 7 predicate places. [2025-02-06 12:47:10,440 INFO L471 AbstractCegarLoop]: Abstraction has has 54 places, 33 transitions, 89 flow [2025-02-06 12:47:10,440 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:47:10,440 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:47:10,440 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:47:10,440 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-06 12:47:10,441 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-02-06 12:47:10,441 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:47:10,441 INFO L85 PathProgramCache]: Analyzing trace with hash 1662331380, now seen corresponding path program 1 times [2025-02-06 12:47:10,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 12:47:10,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295382288] [2025-02-06 12:47:10,442 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:47:10,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 12:47:10,453 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-02-06 12:47:10,459 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-02-06 12:47:10,459 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:47:10,459 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:47:10,630 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 12:47:10,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 12:47:10,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1295382288] [2025-02-06 12:47:10,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1295382288] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:47:10,631 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:47:10,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 12:47:10,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664107447] [2025-02-06 12:47:10,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:47:10,632 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 12:47:10,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 12:47:10,632 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 12:47:10,632 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-02-06 12:47:10,634 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2025-02-06 12:47:10,635 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 33 transitions, 89 flow. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 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 12:47:10,635 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:47:10,635 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2025-02-06 12:47:10,635 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:47:11,465 INFO L124 PetriNetUnfolderBase]: 7065/10492 cut-off events. [2025-02-06 12:47:11,466 INFO L125 PetriNetUnfolderBase]: For 2218/2218 co-relation queries the response was YES. [2025-02-06 12:47:11,482 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23128 conditions, 10492 events. 7065/10492 cut-off events. For 2218/2218 co-relation queries the response was YES. Maximal size of possible extension queue 328. Compared 60580 event pairs, 359 based on Foata normal form. 264/10753 useless extension candidates. Maximal degree in co-relation 23116. Up to 4301 conditions per place. [2025-02-06 12:47:11,521 INFO L140 encePairwiseOnDemand]: 34/43 looper letters, 57 selfloop transitions, 8 changer transitions 68/138 dead transitions. [2025-02-06 12:47:11,522 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 138 transitions, 601 flow [2025-02-06 12:47:11,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-06 12:47:11,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-02-06 12:47:11,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 226 transitions. [2025-02-06 12:47:11,524 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5255813953488372 [2025-02-06 12:47:11,524 INFO L175 Difference]: Start difference. First operand has 54 places, 33 transitions, 89 flow. Second operand 10 states and 226 transitions. [2025-02-06 12:47:11,524 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 138 transitions, 601 flow [2025-02-06 12:47:11,607 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 138 transitions, 565 flow, removed 14 selfloop flow, removed 6 redundant places. [2025-02-06 12:47:11,609 INFO L231 Difference]: Finished difference. Result has 60 places, 38 transitions, 146 flow [2025-02-06 12:47:11,609 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=77, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=146, PETRI_PLACES=60, PETRI_TRANSITIONS=38} [2025-02-06 12:47:11,610 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 13 predicate places. [2025-02-06 12:47:11,610 INFO L471 AbstractCegarLoop]: Abstraction has has 60 places, 38 transitions, 146 flow [2025-02-06 12:47:11,610 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 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 12:47:11,610 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:47:11,611 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] [2025-02-06 12:47:11,611 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-06 12:47:11,612 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-02-06 12:47:11,612 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:47:11,613 INFO L85 PathProgramCache]: Analyzing trace with hash 578232495, now seen corresponding path program 1 times [2025-02-06 12:47:11,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 12:47:11,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555251131] [2025-02-06 12:47:11,613 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:47:11,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 12:47:11,627 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-02-06 12:47:11,641 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-02-06 12:47:11,643 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:47:11,643 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:47:11,863 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 12:47:11,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 12:47:11,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1555251131] [2025-02-06 12:47:11,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1555251131] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:47:11,864 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:47:11,864 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-06 12:47:11,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271180748] [2025-02-06 12:47:11,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:47:11,865 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-06 12:47:11,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 12:47:11,865 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-06 12:47:11,865 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-02-06 12:47:11,867 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2025-02-06 12:47:11,872 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 38 transitions, 146 flow. Second operand has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 7 states have internal predecessors, (79), 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 12:47:11,874 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:47:11,874 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2025-02-06 12:47:11,874 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:47:12,849 INFO L124 PetriNetUnfolderBase]: 8598/12777 cut-off events. [2025-02-06 12:47:12,850 INFO L125 PetriNetUnfolderBase]: For 8096/8096 co-relation queries the response was YES. [2025-02-06 12:47:12,874 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31349 conditions, 12777 events. 8598/12777 cut-off events. For 8096/8096 co-relation queries the response was YES. Maximal size of possible extension queue 430. Compared 75802 event pairs, 1475 based on Foata normal form. 200/12974 useless extension candidates. Maximal degree in co-relation 31332. Up to 5489 conditions per place. [2025-02-06 12:47:12,894 INFO L140 encePairwiseOnDemand]: 35/43 looper letters, 61 selfloop transitions, 8 changer transitions 37/111 dead transitions. [2025-02-06 12:47:12,894 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 111 transitions, 575 flow [2025-02-06 12:47:12,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-06 12:47:12,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-02-06 12:47:12,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 167 transitions. [2025-02-06 12:47:12,898 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5548172757475083 [2025-02-06 12:47:12,898 INFO L175 Difference]: Start difference. First operand has 60 places, 38 transitions, 146 flow. Second operand 7 states and 167 transitions. [2025-02-06 12:47:12,899 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 111 transitions, 575 flow [2025-02-06 12:47:12,920 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 111 transitions, 547 flow, removed 14 selfloop flow, removed 4 redundant places. [2025-02-06 12:47:12,922 INFO L231 Difference]: Finished difference. Result has 59 places, 38 transitions, 162 flow [2025-02-06 12:47:12,922 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=136, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=162, PETRI_PLACES=59, PETRI_TRANSITIONS=38} [2025-02-06 12:47:12,923 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 12 predicate places. [2025-02-06 12:47:12,924 INFO L471 AbstractCegarLoop]: Abstraction has has 59 places, 38 transitions, 162 flow [2025-02-06 12:47:12,924 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 7 states have internal predecessors, (79), 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 12:47:12,924 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:47:12,924 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] [2025-02-06 12:47:12,924 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-06 12:47:12,924 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-02-06 12:47:12,925 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:47:12,925 INFO L85 PathProgramCache]: Analyzing trace with hash -1583136812, now seen corresponding path program 1 times [2025-02-06 12:47:12,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 12:47:12,925 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685321040] [2025-02-06 12:47:12,925 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:47:12,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 12:47:12,933 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-02-06 12:47:12,942 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-02-06 12:47:12,943 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:47:12,943 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:47:13,072 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 12:47:13,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 12:47:13,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [685321040] [2025-02-06 12:47:13,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [685321040] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:47:13,073 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:47:13,073 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-06 12:47:13,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864917654] [2025-02-06 12:47:13,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:47:13,074 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 12:47:13,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 12:47:13,074 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 12:47:13,075 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-06 12:47:13,076 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2025-02-06 12:47:13,077 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 38 transitions, 162 flow. Second operand has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 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 12:47:13,077 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:47:13,077 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2025-02-06 12:47:13,077 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:47:13,626 INFO L124 PetriNetUnfolderBase]: 3860/5899 cut-off events. [2025-02-06 12:47:13,626 INFO L125 PetriNetUnfolderBase]: For 3773/3773 co-relation queries the response was YES. [2025-02-06 12:47:13,640 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14494 conditions, 5899 events. 3860/5899 cut-off events. For 3773/3773 co-relation queries the response was YES. Maximal size of possible extension queue 195. Compared 31320 event pairs, 510 based on Foata normal form. 100/5996 useless extension candidates. Maximal degree in co-relation 14476. Up to 2542 conditions per place. [2025-02-06 12:47:13,651 INFO L140 encePairwiseOnDemand]: 37/43 looper letters, 37 selfloop transitions, 1 changer transitions 75/118 dead transitions. [2025-02-06 12:47:13,651 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 118 transitions, 590 flow [2025-02-06 12:47:13,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-02-06 12:47:13,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-02-06 12:47:13,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 194 transitions. [2025-02-06 12:47:13,652 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5012919896640827 [2025-02-06 12:47:13,653 INFO L175 Difference]: Start difference. First operand has 59 places, 38 transitions, 162 flow. Second operand 9 states and 194 transitions. [2025-02-06 12:47:13,653 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 118 transitions, 590 flow [2025-02-06 12:47:13,668 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 118 transitions, 543 flow, removed 14 selfloop flow, removed 8 redundant places. [2025-02-06 12:47:13,669 INFO L231 Difference]: Finished difference. Result has 63 places, 33 transitions, 114 flow [2025-02-06 12:47:13,669 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=132, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=114, PETRI_PLACES=63, PETRI_TRANSITIONS=33} [2025-02-06 12:47:13,670 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 16 predicate places. [2025-02-06 12:47:13,670 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 33 transitions, 114 flow [2025-02-06 12:47:13,670 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 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 12:47:13,670 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:47:13,670 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 12:47:13,670 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-06 12:47:13,671 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-02-06 12:47:13,671 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:47:13,671 INFO L85 PathProgramCache]: Analyzing trace with hash -1517302080, now seen corresponding path program 1 times [2025-02-06 12:47:13,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 12:47:13,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [464890510] [2025-02-06 12:47:13,671 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:47:13,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 12:47:13,678 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 23 statements into 1 equivalence classes. [2025-02-06 12:47:13,682 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-02-06 12:47:13,683 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:47:13,683 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:47:13,789 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 12:47:13,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 12:47:13,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [464890510] [2025-02-06 12:47:13,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [464890510] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:47:13,789 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:47:13,789 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 12:47:13,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870391619] [2025-02-06 12:47:13,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:47:13,790 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 12:47:13,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 12:47:13,790 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 12:47:13,790 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-06 12:47:13,792 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2025-02-06 12:47:13,793 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 33 transitions, 114 flow. Second operand has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:47:13,793 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:47:13,793 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2025-02-06 12:47:13,793 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:47:14,142 INFO L124 PetriNetUnfolderBase]: 3098/4717 cut-off events. [2025-02-06 12:47:14,149 INFO L125 PetriNetUnfolderBase]: For 2696/2696 co-relation queries the response was YES. [2025-02-06 12:47:14,180 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11116 conditions, 4717 events. 3098/4717 cut-off events. For 2696/2696 co-relation queries the response was YES. Maximal size of possible extension queue 170. Compared 23341 event pairs, 1351 based on Foata normal form. 80/4794 useless extension candidates. Maximal degree in co-relation 11098. Up to 2368 conditions per place. [2025-02-06 12:47:14,189 INFO L140 encePairwiseOnDemand]: 37/43 looper letters, 38 selfloop transitions, 3 changer transitions 32/78 dead transitions. [2025-02-06 12:47:14,190 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 78 transitions, 379 flow [2025-02-06 12:47:14,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 12:47:14,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-06 12:47:14,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 128 transitions. [2025-02-06 12:47:14,191 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.49612403100775193 [2025-02-06 12:47:14,191 INFO L175 Difference]: Start difference. First operand has 63 places, 33 transitions, 114 flow. Second operand 6 states and 128 transitions. [2025-02-06 12:47:14,191 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 78 transitions, 379 flow [2025-02-06 12:47:14,201 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 78 transitions, 334 flow, removed 15 selfloop flow, removed 11 redundant places. [2025-02-06 12:47:14,202 INFO L231 Difference]: Finished difference. Result has 54 places, 33 transitions, 100 flow [2025-02-06 12:47:14,202 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=86, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=100, PETRI_PLACES=54, PETRI_TRANSITIONS=33} [2025-02-06 12:47:14,202 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 7 predicate places. [2025-02-06 12:47:14,202 INFO L471 AbstractCegarLoop]: Abstraction has has 54 places, 33 transitions, 100 flow [2025-02-06 12:47:14,203 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:47:14,203 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:47:14,203 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 12:47:14,203 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-02-06 12:47:14,203 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-02-06 12:47:14,203 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:47:14,204 INFO L85 PathProgramCache]: Analyzing trace with hash 670629512, now seen corresponding path program 2 times [2025-02-06 12:47:14,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 12:47:14,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446325108] [2025-02-06 12:47:14,204 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 12:47:14,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 12:47:14,211 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 23 statements into 1 equivalence classes. [2025-02-06 12:47:14,215 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-02-06 12:47:14,215 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-06 12:47:14,215 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:47:14,335 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 12:47:14,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 12:47:14,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446325108] [2025-02-06 12:47:14,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [446325108] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:47:14,335 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:47:14,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 12:47:14,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019191978] [2025-02-06 12:47:14,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:47:14,336 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 12:47:14,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 12:47:14,336 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 12:47:14,336 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-06 12:47:14,337 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2025-02-06 12:47:14,337 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 33 transitions, 100 flow. Second operand has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:47:14,337 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:47:14,337 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2025-02-06 12:47:14,338 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:47:14,538 INFO L124 PetriNetUnfolderBase]: 1473/2182 cut-off events. [2025-02-06 12:47:14,538 INFO L125 PetriNetUnfolderBase]: For 593/593 co-relation queries the response was YES. [2025-02-06 12:47:14,541 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4960 conditions, 2182 events. 1473/2182 cut-off events. For 593/593 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 8830 event pairs, 369 based on Foata normal form. 80/2261 useless extension candidates. Maximal degree in co-relation 4952. Up to 1056 conditions per place. [2025-02-06 12:47:14,543 INFO L140 encePairwiseOnDemand]: 38/43 looper letters, 0 selfloop transitions, 0 changer transitions 74/74 dead transitions. [2025-02-06 12:47:14,543 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 74 transitions, 330 flow [2025-02-06 12:47:14,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-06 12:47:14,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-02-06 12:47:14,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 145 transitions. [2025-02-06 12:47:14,545 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.42151162790697677 [2025-02-06 12:47:14,545 INFO L175 Difference]: Start difference. First operand has 54 places, 33 transitions, 100 flow. Second operand 8 states and 145 transitions. [2025-02-06 12:47:14,545 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 74 transitions, 330 flow [2025-02-06 12:47:14,547 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 74 transitions, 314 flow, removed 4 selfloop flow, removed 5 redundant places. [2025-02-06 12:47:14,547 INFO L231 Difference]: Finished difference. Result has 51 places, 0 transitions, 0 flow [2025-02-06 12:47:14,547 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=0, PETRI_PLACES=51, PETRI_TRANSITIONS=0} [2025-02-06 12:47:14,548 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 4 predicate places. [2025-02-06 12:47:14,548 INFO L471 AbstractCegarLoop]: Abstraction has has 51 places, 0 transitions, 0 flow [2025-02-06 12:47:14,548 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:47:14,551 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (4 of 5 remaining) [2025-02-06 12:47:14,554 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (3 of 5 remaining) [2025-02-06 12:47:14,554 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2025-02-06 12:47:14,554 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2025-02-06 12:47:14,554 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2025-02-06 12:47:14,555 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-02-06 12:47:14,555 INFO L422 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1] [2025-02-06 12:47:14,557 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-02-06 12:47:14,558 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-06 12:47:14,563 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.02 12:47:14 BasicIcfg [2025-02-06 12:47:14,565 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-06 12:47:14,566 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-06 12:47:14,566 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-06 12:47:14,566 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-06 12:47:14,567 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 12:47:08" (3/4) ... [2025-02-06 12:47:14,569 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-02-06 12:47:14,571 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure P0 [2025-02-06 12:47:14,572 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure P1 [2025-02-06 12:47:14,572 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure P2 [2025-02-06 12:47:14,576 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 29 nodes and edges [2025-02-06 12:47:14,576 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2025-02-06 12:47:14,576 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2025-02-06 12:47:14,576 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2025-02-06 12:47:14,635 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-02-06 12:47:14,636 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-02-06 12:47:14,636 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-06 12:47:14,637 INFO L158 Benchmark]: Toolchain (without parser) took 7632.58ms. Allocated memory was 201.3MB in the beginning and 620.8MB in the end (delta: 419.4MB). Free memory was 157.7MB in the beginning and 154.0MB in the end (delta: 3.6MB). Peak memory consumption was 419.8MB. Max. memory is 16.1GB. [2025-02-06 12:47:14,638 INFO L158 Benchmark]: CDTParser took 0.97ms. Allocated memory is still 201.3MB. Free memory is still 116.3MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 12:47:14,638 INFO L158 Benchmark]: CACSL2BoogieTranslator took 487.18ms. Allocated memory is still 201.3MB. Free memory was 157.7MB in the beginning and 137.7MB in the end (delta: 19.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-06 12:47:14,638 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.07ms. Allocated memory is still 201.3MB. Free memory was 137.7MB in the beginning and 136.0MB in the end (delta: 1.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-06 12:47:14,638 INFO L158 Benchmark]: Boogie Preprocessor took 64.18ms. Allocated memory is still 201.3MB. Free memory was 136.0MB in the beginning and 134.3MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 12:47:14,639 INFO L158 Benchmark]: IcfgBuilder took 705.06ms. Allocated memory is still 201.3MB. Free memory was 134.3MB in the beginning and 114.3MB in the end (delta: 20.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-06 12:47:14,639 INFO L158 Benchmark]: TraceAbstraction took 6247.12ms. Allocated memory was 201.3MB in the beginning and 620.8MB in the end (delta: 419.4MB). Free memory was 113.8MB in the beginning and 160.0MB in the end (delta: -46.3MB). Peak memory consumption was 377.8MB. Max. memory is 16.1GB. [2025-02-06 12:47:14,640 INFO L158 Benchmark]: Witness Printer took 70.14ms. Allocated memory is still 620.8MB. Free memory was 160.0MB in the beginning and 154.0MB in the end (delta: 6.0MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 12:47:14,641 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.97ms. Allocated memory is still 201.3MB. Free memory is still 116.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 487.18ms. Allocated memory is still 201.3MB. Free memory was 157.7MB in the beginning and 137.7MB in the end (delta: 19.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 52.07ms. Allocated memory is still 201.3MB. Free memory was 137.7MB in the beginning and 136.0MB in the end (delta: 1.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 64.18ms. Allocated memory is still 201.3MB. Free memory was 136.0MB in the beginning and 134.3MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 705.06ms. Allocated memory is still 201.3MB. Free memory was 134.3MB in the beginning and 114.3MB in the end (delta: 20.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 6247.12ms. Allocated memory was 201.3MB in the beginning and 620.8MB in the end (delta: 419.4MB). Free memory was 113.8MB in the beginning and 160.0MB in the end (delta: -46.3MB). Peak memory consumption was 377.8MB. Max. memory is 16.1GB. * Witness Printer took 70.14ms. Allocated memory is still 620.8MB. Free memory was 160.0MB in the beginning and 154.0MB in the end (delta: 6.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 776]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 17]: 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 7 procedures, 66 locations, 5 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: 6.2s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 4.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 498 SdHoareTripleChecker+Valid, 1.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 497 mSDsluCounter, 11 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 8 mSDsCounter, 15 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1318 IncrementalHoareTripleChecker+Invalid, 1333 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 15 mSolverCounterUnsat, 3 mSDtfsCounter, 1318 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 57 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=162occurred in iteration=4, InterpolantAutomatonStates: 51, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 136 NumberOfCodeBlocks, 136 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 129 ConstructedInterpolants, 0 QuantifiedInterpolants, 407 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-02-06 12:47:14,656 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/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