./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/pthread-wmm/safe023_tso.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 798a7b37 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/pthread-wmm/safe023_tso.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b87483e693fd72a28f6c7edd484e610e6e0dbb17679c8092f6f9c9cd35d4acca --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-04 09:57:08,494 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-04 09:57:08,547 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2025-03-04 09:57:08,556 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-04 09:57:08,557 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-04 09:57:08,577 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-04 09:57:08,578 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-04 09:57:08,578 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-04 09:57:08,578 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-04 09:57:08,578 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-04 09:57:08,578 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-04 09:57:08,578 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-04 09:57:08,578 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-04 09:57:08,578 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-04 09:57:08,578 INFO L153 SettingsManager]: * Use SBE=true [2025-03-04 09:57:08,579 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-04 09:57:08,579 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-04 09:57:08,579 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-04 09:57:08,579 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-04 09:57:08,579 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-04 09:57:08,579 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-03-04 09:57:08,579 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-03-04 09:57:08,579 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-03-04 09:57:08,579 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-04 09:57:08,579 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-03-04 09:57:08,579 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-04 09:57:08,579 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-04 09:57:08,579 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-04 09:57:08,579 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-04 09:57:08,579 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-04 09:57:08,581 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-04 09:57:08,581 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-04 09:57:08,581 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-04 09:57:08,581 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 09:57:08,581 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-04 09:57:08,581 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-04 09:57:08,581 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-04 09:57:08,581 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-04 09:57:08,581 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-04 09:57:08,581 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-04 09:57:08,581 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-04 09:57:08,581 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-04 09:57:08,581 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b87483e693fd72a28f6c7edd484e610e6e0dbb17679c8092f6f9c9cd35d4acca [2025-03-04 09:57:08,912 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-04 09:57:08,918 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-04 09:57:08,922 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-04 09:57:08,923 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-04 09:57:08,923 INFO L274 PluginConnector]: CDTParser initialized [2025-03-04 09:57:08,924 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe023_tso.i [2025-03-04 09:57:10,043 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b33cb115c/b88efcb5f54a4a048eb95566e00914cd/FLAG288911f19 [2025-03-04 09:57:10,316 INFO L384 CDTParser]: Found 1 translation units. [2025-03-04 09:57:10,320 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe023_tso.i [2025-03-04 09:57:10,335 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b33cb115c/b88efcb5f54a4a048eb95566e00914cd/FLAG288911f19 [2025-03-04 09:57:10,609 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b33cb115c/b88efcb5f54a4a048eb95566e00914cd [2025-03-04 09:57:10,611 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-04 09:57:10,613 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-04 09:57:10,614 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-04 09:57:10,614 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-04 09:57:10,618 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-04 09:57:10,619 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 09:57:10" (1/1) ... [2025-03-04 09:57:10,619 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36afc31f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:57:10, skipping insertion in model container [2025-03-04 09:57:10,619 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 09:57:10" (1/1) ... [2025-03-04 09:57:10,647 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 09:57:10,893 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 09:57:10,900 INFO L200 MainTranslator]: Completed pre-run [2025-03-04 09:57:10,934 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 09:57:10,960 INFO L204 MainTranslator]: Completed translation [2025-03-04 09:57:10,961 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:57:10 WrapperNode [2025-03-04 09:57:10,961 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-04 09:57:10,961 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-04 09:57:10,961 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-04 09:57:10,961 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-04 09:57:10,965 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:57:10" (1/1) ... [2025-03-04 09:57:10,972 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:57:10" (1/1) ... [2025-03-04 09:57:10,985 INFO L138 Inliner]: procedures = 175, calls = 44, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 60 [2025-03-04 09:57:10,985 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-04 09:57:10,986 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-04 09:57:10,986 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-04 09:57:10,986 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-04 09:57:10,991 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:57:10" (1/1) ... [2025-03-04 09:57:10,992 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:57:10" (1/1) ... [2025-03-04 09:57:10,993 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:57:10" (1/1) ... [2025-03-04 09:57:11,001 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2025-03-04 09:57:11,002 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:57:10" (1/1) ... [2025-03-04 09:57:11,002 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:57:10" (1/1) ... [2025-03-04 09:57:11,006 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:57:10" (1/1) ... [2025-03-04 09:57:11,008 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:57:10" (1/1) ... [2025-03-04 09:57:11,009 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:57:10" (1/1) ... [2025-03-04 09:57:11,009 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:57:10" (1/1) ... [2025-03-04 09:57:11,011 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-04 09:57:11,012 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-04 09:57:11,012 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-04 09:57:11,012 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-04 09:57:11,013 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:57:10" (1/1) ... [2025-03-04 09:57:11,017 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 09:57:11,026 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 09:57:11,037 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-04 09:57:11,039 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-04 09:57:11,054 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-03-04 09:57:11,055 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-04 09:57:11,055 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2025-03-04 09:57:11,055 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2025-03-04 09:57:11,055 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2025-03-04 09:57:11,055 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2025-03-04 09:57:11,055 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2025-03-04 09:57:11,055 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2025-03-04 09:57:11,055 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-04 09:57:11,055 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-03-04 09:57:11,055 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-04 09:57:11,055 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-04 09:57:11,056 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-04 09:57:11,134 INFO L256 CfgBuilder]: Building ICFG [2025-03-04 09:57:11,136 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-04 09:57:11,237 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-04 09:57:11,237 INFO L307 CfgBuilder]: Performing block encoding [2025-03-04 09:57:11,309 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-04 09:57:11,310 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-04 09:57:11,310 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 09:57:11 BoogieIcfgContainer [2025-03-04 09:57:11,310 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-04 09:57:11,312 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-04 09:57:11,312 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-04 09:57:11,315 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-04 09:57:11,315 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.03 09:57:10" (1/3) ... [2025-03-04 09:57:11,315 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d51b386 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 09:57:11, skipping insertion in model container [2025-03-04 09:57:11,316 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:57:10" (2/3) ... [2025-03-04 09:57:11,316 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d51b386 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 09:57:11, skipping insertion in model container [2025-03-04 09:57:11,316 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 09:57:11" (3/3) ... [2025-03-04 09:57:11,316 INFO L128 eAbstractionObserver]: Analyzing ICFG safe023_tso.i [2025-03-04 09:57:11,326 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-04 09:57:11,327 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG safe023_tso.i that has 4 procedures, 43 locations, 1 initial locations, 0 loop locations, and 2 error locations. [2025-03-04 09:57:11,328 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-04 09:57:11,366 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-03-04 09:57:11,391 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 52 places, 44 transitions, 100 flow [2025-03-04 09:57:11,410 INFO L124 PetriNetUnfolderBase]: 2/41 cut-off events. [2025-03-04 09:57:11,414 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-04 09:57:11,416 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51 conditions, 41 events. 2/41 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 76 event pairs, 0 based on Foata normal form. 0/37 useless extension candidates. Maximal degree in co-relation 43. Up to 2 conditions per place. [2025-03-04 09:57:11,416 INFO L82 GeneralOperation]: Start removeDead. Operand has 52 places, 44 transitions, 100 flow [2025-03-04 09:57:11,421 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 48 places, 40 transitions, 89 flow [2025-03-04 09:57:11,425 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-04 09:57:11,432 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;@5d536c6d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-04 09:57:11,433 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2025-03-04 09:57:11,448 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-04 09:57:11,448 INFO L124 PetriNetUnfolderBase]: 2/38 cut-off events. [2025-03-04 09:57:11,448 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-04 09:57:11,448 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:57:11,448 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 09:57:11,449 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)] === [2025-03-04 09:57:11,452 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:57:11,453 INFO L85 PathProgramCache]: Analyzing trace with hash -33813954, now seen corresponding path program 1 times [2025-03-04 09:57:11,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 09:57:11,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392192894] [2025-03-04 09:57:11,459 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:57:11,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 09:57:11,513 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-03-04 09:57:11,527 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-03-04 09:57:11,528 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:57:11,528 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:57:11,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:57:11,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 09:57:11,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392192894] [2025-03-04 09:57:11,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [392192894] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:57:11,618 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:57:11,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-03-04 09:57:11,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528050588] [2025-03-04 09:57:11,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:57:11,623 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 09:57:11,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 09:57:11,637 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 09:57:11,638 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 09:57:11,639 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 44 [2025-03-04 09:57:11,640 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 40 transitions, 89 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) [2025-03-04 09:57:11,640 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:57:11,640 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 44 [2025-03-04 09:57:11,641 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:57:12,230 INFO L124 PetriNetUnfolderBase]: 5627/8717 cut-off events. [2025-03-04 09:57:12,231 INFO L125 PetriNetUnfolderBase]: For 43/43 co-relation queries the response was YES. [2025-03-04 09:57:12,249 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16816 conditions, 8717 events. 5627/8717 cut-off events. For 43/43 co-relation queries the response was YES. Maximal size of possible extension queue 325. Compared 52002 event pairs, 5627 based on Foata normal form. 756/9420 useless extension candidates. Maximal degree in co-relation 16805. Up to 7994 conditions per place. [2025-03-04 09:57:12,282 INFO L140 encePairwiseOnDemand]: 40/44 looper letters, 28 selfloop transitions, 1 changer transitions 1/36 dead transitions. [2025-03-04 09:57:12,282 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 36 transitions, 141 flow [2025-03-04 09:57:12,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 09:57:12,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-04 09:57:12,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 60 transitions. [2025-03-04 09:57:12,293 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.45454545454545453 [2025-03-04 09:57:12,295 INFO L175 Difference]: Start difference. First operand has 48 places, 40 transitions, 89 flow. Second operand 3 states and 60 transitions. [2025-03-04 09:57:12,295 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 36 transitions, 141 flow [2025-03-04 09:57:12,299 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 36 transitions, 138 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-03-04 09:57:12,301 INFO L231 Difference]: Finished difference. Result has 45 places, 35 transitions, 78 flow [2025-03-04 09:57:12,303 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=78, PETRI_PLACES=45, PETRI_TRANSITIONS=35} [2025-03-04 09:57:12,307 INFO L279 CegarLoopForPetriNet]: 48 programPoint places, -3 predicate places. [2025-03-04 09:57:12,308 INFO L471 AbstractCegarLoop]: Abstraction has has 45 places, 35 transitions, 78 flow [2025-03-04 09:57:12,308 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) [2025-03-04 09:57:12,308 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:57:12,308 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 09:57:12,308 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-04 09:57:12,309 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)] === [2025-03-04 09:57:12,309 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:57:12,310 INFO L85 PathProgramCache]: Analyzing trace with hash -33813512, now seen corresponding path program 1 times [2025-03-04 09:57:12,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 09:57:12,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414438109] [2025-03-04 09:57:12,310 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:57:12,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 09:57:12,319 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-03-04 09:57:12,338 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-03-04 09:57:12,339 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:57:12,339 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:57:12,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:57:12,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 09:57:12,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [414438109] [2025-03-04 09:57:12,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [414438109] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:57:12,585 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:57:12,585 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-04 09:57:12,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634534400] [2025-03-04 09:57:12,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:57:12,586 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-04 09:57:12,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 09:57:12,586 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-04 09:57:12,586 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-04 09:57:12,589 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 44 [2025-03-04 09:57:12,589 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 35 transitions, 78 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) [2025-03-04 09:57:12,589 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:57:12,589 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 44 [2025-03-04 09:57:12,589 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:57:13,722 INFO L124 PetriNetUnfolderBase]: 13040/19117 cut-off events. [2025-03-04 09:57:13,722 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-04 09:57:13,750 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37948 conditions, 19117 events. 13040/19117 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 667. Compared 118104 event pairs, 3041 based on Foata normal form. 0/18649 useless extension candidates. Maximal degree in co-relation 37942. Up to 6694 conditions per place. [2025-03-04 09:57:13,800 INFO L140 encePairwiseOnDemand]: 34/44 looper letters, 47 selfloop transitions, 6 changer transitions 103/161 dead transitions. [2025-03-04 09:57:13,801 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 161 transitions, 644 flow [2025-03-04 09:57:13,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-04 09:57:13,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-03-04 09:57:13,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 239 transitions. [2025-03-04 09:57:13,804 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6035353535353535 [2025-03-04 09:57:13,804 INFO L175 Difference]: Start difference. First operand has 45 places, 35 transitions, 78 flow. Second operand 9 states and 239 transitions. [2025-03-04 09:57:13,804 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 161 transitions, 644 flow [2025-03-04 09:57:13,805 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 161 transitions, 643 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-04 09:57:13,810 INFO L231 Difference]: Finished difference. Result has 59 places, 39 transitions, 159 flow [2025-03-04 09:57:13,810 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=77, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=159, PETRI_PLACES=59, PETRI_TRANSITIONS=39} [2025-03-04 09:57:13,810 INFO L279 CegarLoopForPetriNet]: 48 programPoint places, 11 predicate places. [2025-03-04 09:57:13,811 INFO L471 AbstractCegarLoop]: Abstraction has has 59 places, 39 transitions, 159 flow [2025-03-04 09:57:13,811 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) [2025-03-04 09:57:13,811 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:57:13,811 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 09:57:13,811 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-04 09:57:13,811 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)] === [2025-03-04 09:57:13,812 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:57:13,812 INFO L85 PathProgramCache]: Analyzing trace with hash 892192877, now seen corresponding path program 1 times [2025-03-04 09:57:13,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 09:57:13,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745351598] [2025-03-04 09:57:13,813 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:57:13,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 09:57:13,822 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-03-04 09:57:13,827 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-03-04 09:57:13,828 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:57:13,828 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:57:13,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:57:13,972 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 09:57:13,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745351598] [2025-03-04 09:57:13,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [745351598] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:57:13,972 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:57:13,972 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-04 09:57:13,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [348479640] [2025-03-04 09:57:13,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:57:13,973 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 09:57:13,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 09:57:13,973 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 09:57:13,973 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-04 09:57:13,974 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 44 [2025-03-04 09:57:13,974 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 39 transitions, 159 flow. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 09:57:13,975 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:57:13,975 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 44 [2025-03-04 09:57:13,975 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:57:14,860 INFO L124 PetriNetUnfolderBase]: 9326/13846 cut-off events. [2025-03-04 09:57:14,861 INFO L125 PetriNetUnfolderBase]: For 16480/16483 co-relation queries the response was YES. [2025-03-04 09:57:14,939 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37725 conditions, 13846 events. 9326/13846 cut-off events. For 16480/16483 co-relation queries the response was YES. Maximal size of possible extension queue 474. Compared 81057 event pairs, 1166 based on Foata normal form. 270/14106 useless extension candidates. Maximal degree in co-relation 37710. Up to 5752 conditions per place. [2025-03-04 09:57:14,971 INFO L140 encePairwiseOnDemand]: 35/44 looper letters, 61 selfloop transitions, 7 changer transitions 80/153 dead transitions. [2025-03-04 09:57:14,971 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 153 transitions, 861 flow [2025-03-04 09:57:14,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-04 09:57:14,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-03-04 09:57:14,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 234 transitions. [2025-03-04 09:57:14,973 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5318181818181819 [2025-03-04 09:57:14,973 INFO L175 Difference]: Start difference. First operand has 59 places, 39 transitions, 159 flow. Second operand 10 states and 234 transitions. [2025-03-04 09:57:14,973 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 153 transitions, 861 flow [2025-03-04 09:57:15,009 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 153 transitions, 779 flow, removed 20 selfloop flow, removed 4 redundant places. [2025-03-04 09:57:15,010 INFO L231 Difference]: Finished difference. Result has 66 places, 42 transitions, 203 flow [2025-03-04 09:57:15,011 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=135, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=203, PETRI_PLACES=66, PETRI_TRANSITIONS=42} [2025-03-04 09:57:15,011 INFO L279 CegarLoopForPetriNet]: 48 programPoint places, 18 predicate places. [2025-03-04 09:57:15,011 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 42 transitions, 203 flow [2025-03-04 09:57:15,012 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 09:57:15,012 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:57:15,012 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 09:57:15,012 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-04 09:57:15,012 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)] === [2025-03-04 09:57:15,013 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:57:15,013 INFO L85 PathProgramCache]: Analyzing trace with hash 2061296695, now seen corresponding path program 1 times [2025-03-04 09:57:15,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 09:57:15,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283130546] [2025-03-04 09:57:15,013 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:57:15,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 09:57:15,019 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-03-04 09:57:15,027 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-03-04 09:57:15,028 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:57:15,028 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:57:15,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:57:15,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 09:57:15,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1283130546] [2025-03-04 09:57:15,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1283130546] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:57:15,158 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:57:15,158 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-04 09:57:15,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328303696] [2025-03-04 09:57:15,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:57:15,159 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 09:57:15,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 09:57:15,160 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 09:57:15,161 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-04 09:57:15,163 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 44 [2025-03-04 09:57:15,163 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 42 transitions, 203 flow. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 09:57:15,163 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:57:15,164 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 44 [2025-03-04 09:57:15,164 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:57:16,314 INFO L124 PetriNetUnfolderBase]: 10052/14687 cut-off events. [2025-03-04 09:57:16,315 INFO L125 PetriNetUnfolderBase]: For 36240/36243 co-relation queries the response was YES. [2025-03-04 09:57:16,343 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44311 conditions, 14687 events. 10052/14687 cut-off events. For 36240/36243 co-relation queries the response was YES. Maximal size of possible extension queue 478. Compared 85657 event pairs, 932 based on Foata normal form. 421/15099 useless extension candidates. Maximal degree in co-relation 44289. Up to 5260 conditions per place. [2025-03-04 09:57:16,372 INFO L140 encePairwiseOnDemand]: 34/44 looper letters, 82 selfloop transitions, 17 changer transitions 122/226 dead transitions. [2025-03-04 09:57:16,372 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 226 transitions, 1473 flow [2025-03-04 09:57:16,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-03-04 09:57:16,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2025-03-04 09:57:16,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 316 transitions. [2025-03-04 09:57:16,374 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5524475524475524 [2025-03-04 09:57:16,374 INFO L175 Difference]: Start difference. First operand has 66 places, 42 transitions, 203 flow. Second operand 13 states and 316 transitions. [2025-03-04 09:57:16,374 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 226 transitions, 1473 flow [2025-03-04 09:57:16,489 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 226 transitions, 1386 flow, removed 41 selfloop flow, removed 5 redundant places. [2025-03-04 09:57:16,490 INFO L231 Difference]: Finished difference. Result has 78 places, 52 transitions, 351 flow [2025-03-04 09:57:16,491 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=184, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=351, PETRI_PLACES=78, PETRI_TRANSITIONS=52} [2025-03-04 09:57:16,491 INFO L279 CegarLoopForPetriNet]: 48 programPoint places, 30 predicate places. [2025-03-04 09:57:16,491 INFO L471 AbstractCegarLoop]: Abstraction has has 78 places, 52 transitions, 351 flow [2025-03-04 09:57:16,491 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 09:57:16,492 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:57:16,492 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 09:57:16,492 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-04 09:57:16,492 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)] === [2025-03-04 09:57:16,492 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:57:16,492 INFO L85 PathProgramCache]: Analyzing trace with hash 544870518, now seen corresponding path program 1 times [2025-03-04 09:57:16,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 09:57:16,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495630497] [2025-03-04 09:57:16,493 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:57:16,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 09:57:16,497 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-03-04 09:57:16,501 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-03-04 09:57:16,502 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:57:16,502 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:57:16,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:57:16,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 09:57:16,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [495630497] [2025-03-04 09:57:16,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [495630497] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:57:16,591 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:57:16,591 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-04 09:57:16,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701040537] [2025-03-04 09:57:16,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:57:16,591 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 09:57:16,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 09:57:16,592 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 09:57:16,592 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-04 09:57:16,593 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 44 [2025-03-04 09:57:16,593 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 52 transitions, 351 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) [2025-03-04 09:57:16,593 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:57:16,593 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 44 [2025-03-04 09:57:16,593 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:57:17,330 INFO L124 PetriNetUnfolderBase]: 7954/11792 cut-off events. [2025-03-04 09:57:17,330 INFO L125 PetriNetUnfolderBase]: For 32933/32936 co-relation queries the response was YES. [2025-03-04 09:57:17,359 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37069 conditions, 11792 events. 7954/11792 cut-off events. For 32933/32936 co-relation queries the response was YES. Maximal size of possible extension queue 372. Compared 66830 event pairs, 2224 based on Foata normal form. 245/12031 useless extension candidates. Maximal degree in co-relation 37039. Up to 3482 conditions per place. [2025-03-04 09:57:17,380 INFO L140 encePairwiseOnDemand]: 36/44 looper letters, 68 selfloop transitions, 12 changer transitions 72/157 dead transitions. [2025-03-04 09:57:17,380 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 157 transitions, 1203 flow [2025-03-04 09:57:17,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-04 09:57:17,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-03-04 09:57:17,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 189 transitions. [2025-03-04 09:57:17,381 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5369318181818182 [2025-03-04 09:57:17,382 INFO L175 Difference]: Start difference. First operand has 78 places, 52 transitions, 351 flow. Second operand 8 states and 189 transitions. [2025-03-04 09:57:17,382 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 157 transitions, 1203 flow [2025-03-04 09:57:17,499 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 157 transitions, 1117 flow, removed 43 selfloop flow, removed 12 redundant places. [2025-03-04 09:57:17,500 INFO L231 Difference]: Finished difference. Result has 72 places, 51 transitions, 358 flow [2025-03-04 09:57:17,501 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=311, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=358, PETRI_PLACES=72, PETRI_TRANSITIONS=51} [2025-03-04 09:57:17,501 INFO L279 CegarLoopForPetriNet]: 48 programPoint places, 24 predicate places. [2025-03-04 09:57:17,501 INFO L471 AbstractCegarLoop]: Abstraction has has 72 places, 51 transitions, 358 flow [2025-03-04 09:57:17,502 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) [2025-03-04 09:57:17,502 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:57:17,502 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 09:57:17,502 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-04 09:57:17,502 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)] === [2025-03-04 09:57:17,502 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:57:17,502 INFO L85 PathProgramCache]: Analyzing trace with hash -1446398450, now seen corresponding path program 1 times [2025-03-04 09:57:17,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 09:57:17,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032167571] [2025-03-04 09:57:17,503 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:57:17,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 09:57:17,508 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 23 statements into 1 equivalence classes. [2025-03-04 09:57:17,511 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-03-04 09:57:17,512 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:57:17,512 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:57:17,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:57:17,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 09:57:17,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1032167571] [2025-03-04 09:57:17,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1032167571] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:57:17,603 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:57:17,603 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-04 09:57:17,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330734440] [2025-03-04 09:57:17,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:57:17,603 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-04 09:57:17,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 09:57:17,603 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-04 09:57:17,604 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2025-03-04 09:57:17,604 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 44 [2025-03-04 09:57:17,605 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 51 transitions, 358 flow. Second operand has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 7 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) [2025-03-04 09:57:17,605 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:57:17,605 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 44 [2025-03-04 09:57:17,605 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:57:18,192 INFO L124 PetriNetUnfolderBase]: 6559/9809 cut-off events. [2025-03-04 09:57:18,193 INFO L125 PetriNetUnfolderBase]: For 19339/19348 co-relation queries the response was YES. [2025-03-04 09:57:18,213 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28489 conditions, 9809 events. 6559/9809 cut-off events. For 19339/19348 co-relation queries the response was YES. Maximal size of possible extension queue 318. Compared 55428 event pairs, 990 based on Foata normal form. 180/9983 useless extension candidates. Maximal degree in co-relation 28462. Up to 4656 conditions per place. [2025-03-04 09:57:18,225 INFO L140 encePairwiseOnDemand]: 37/44 looper letters, 59 selfloop transitions, 6 changer transitions 65/135 dead transitions. [2025-03-04 09:57:18,226 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 135 transitions, 929 flow [2025-03-04 09:57:18,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-04 09:57:18,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-03-04 09:57:18,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 196 transitions. [2025-03-04 09:57:18,227 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.494949494949495 [2025-03-04 09:57:18,227 INFO L175 Difference]: Start difference. First operand has 72 places, 51 transitions, 358 flow. Second operand 9 states and 196 transitions. [2025-03-04 09:57:18,227 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 135 transitions, 929 flow [2025-03-04 09:57:18,269 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 135 transitions, 885 flow, removed 19 selfloop flow, removed 5 redundant places. [2025-03-04 09:57:18,270 INFO L231 Difference]: Finished difference. Result has 77 places, 41 transitions, 249 flow [2025-03-04 09:57:18,270 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=339, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=249, PETRI_PLACES=77, PETRI_TRANSITIONS=41} [2025-03-04 09:57:18,271 INFO L279 CegarLoopForPetriNet]: 48 programPoint places, 29 predicate places. [2025-03-04 09:57:18,271 INFO L471 AbstractCegarLoop]: Abstraction has has 77 places, 41 transitions, 249 flow [2025-03-04 09:57:18,271 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 7 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) [2025-03-04 09:57:18,271 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:57:18,271 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, 1] [2025-03-04 09:57:18,271 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-04 09:57:18,271 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)] === [2025-03-04 09:57:18,272 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:57:18,272 INFO L85 PathProgramCache]: Analyzing trace with hash -597447953, now seen corresponding path program 1 times [2025-03-04 09:57:18,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 09:57:18,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229517586] [2025-03-04 09:57:18,272 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:57:18,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 09:57:18,277 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-03-04 09:57:18,280 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-03-04 09:57:18,280 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:57:18,280 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:57:18,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:57:18,365 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 09:57:18,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [229517586] [2025-03-04 09:57:18,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [229517586] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:57:18,365 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:57:18,365 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-03-04 09:57:18,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675024208] [2025-03-04 09:57:18,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:57:18,365 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-04 09:57:18,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 09:57:18,365 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-04 09:57:18,365 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2025-03-04 09:57:18,366 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 44 [2025-03-04 09:57:18,366 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 41 transitions, 249 flow. Second operand has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 7 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 09:57:18,366 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:57:18,366 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 44 [2025-03-04 09:57:18,366 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:57:19,029 INFO L124 PetriNetUnfolderBase]: 5131/7762 cut-off events. [2025-03-04 09:57:19,029 INFO L125 PetriNetUnfolderBase]: For 13471/13471 co-relation queries the response was YES. [2025-03-04 09:57:19,052 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22944 conditions, 7762 events. 5131/7762 cut-off events. For 13471/13471 co-relation queries the response was YES. Maximal size of possible extension queue 243. Compared 41803 event pairs, 1833 based on Foata normal form. 80/7839 useless extension candidates. Maximal degree in co-relation 22914. Up to 2334 conditions per place. [2025-03-04 09:57:19,065 INFO L140 encePairwiseOnDemand]: 35/44 looper letters, 65 selfloop transitions, 8 changer transitions 47/125 dead transitions. [2025-03-04 09:57:19,065 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 125 transitions, 800 flow [2025-03-04 09:57:19,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-04 09:57:19,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-03-04 09:57:19,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 190 transitions. [2025-03-04 09:57:19,066 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5397727272727273 [2025-03-04 09:57:19,066 INFO L175 Difference]: Start difference. First operand has 77 places, 41 transitions, 249 flow. Second operand 8 states and 190 transitions. [2025-03-04 09:57:19,066 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 125 transitions, 800 flow [2025-03-04 09:57:19,098 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 125 transitions, 657 flow, removed 37 selfloop flow, removed 16 redundant places. [2025-03-04 09:57:19,100 INFO L231 Difference]: Finished difference. Result has 67 places, 40 transitions, 194 flow [2025-03-04 09:57:19,100 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=180, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=194, PETRI_PLACES=67, PETRI_TRANSITIONS=40} [2025-03-04 09:57:19,100 INFO L279 CegarLoopForPetriNet]: 48 programPoint places, 19 predicate places. [2025-03-04 09:57:19,100 INFO L471 AbstractCegarLoop]: Abstraction has has 67 places, 40 transitions, 194 flow [2025-03-04 09:57:19,101 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 7 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 09:57:19,101 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:57:19,101 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, 1] [2025-03-04 09:57:19,101 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-04 09:57:19,101 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-03-04 09:57:19,101 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:57:19,101 INFO L85 PathProgramCache]: Analyzing trace with hash 1318613287, now seen corresponding path program 2 times [2025-03-04 09:57:19,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 09:57:19,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542445110] [2025-03-04 09:57:19,102 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 09:57:19,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 09:57:19,107 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 24 statements into 1 equivalence classes. [2025-03-04 09:57:19,113 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-03-04 09:57:19,113 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-04 09:57:19,113 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:57:19,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:57:19,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 09:57:19,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542445110] [2025-03-04 09:57:19,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [542445110] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:57:19,178 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:57:19,178 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 09:57:19,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321825321] [2025-03-04 09:57:19,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:57:19,179 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 09:57:19,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 09:57:19,179 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 09:57:19,179 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-04 09:57:19,179 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 44 [2025-03-04 09:57:19,179 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 40 transitions, 194 flow. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 09:57:19,179 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:57:19,179 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 44 [2025-03-04 09:57:19,180 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:57:19,480 INFO L124 PetriNetUnfolderBase]: 3264/5310 cut-off events. [2025-03-04 09:57:19,480 INFO L125 PetriNetUnfolderBase]: For 6745/6745 co-relation queries the response was YES. [2025-03-04 09:57:19,490 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13928 conditions, 5310 events. 3264/5310 cut-off events. For 6745/6745 co-relation queries the response was YES. Maximal size of possible extension queue 167. Compared 30255 event pairs, 707 based on Foata normal form. 244/5551 useless extension candidates. Maximal degree in co-relation 13909. Up to 2734 conditions per place. [2025-03-04 09:57:19,501 INFO L140 encePairwiseOnDemand]: 38/44 looper letters, 62 selfloop transitions, 4 changer transitions 10/81 dead transitions. [2025-03-04 09:57:19,501 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 81 transitions, 570 flow [2025-03-04 09:57:19,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 09:57:19,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-04 09:57:19,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 106 transitions. [2025-03-04 09:57:19,503 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6022727272727273 [2025-03-04 09:57:19,503 INFO L175 Difference]: Start difference. First operand has 67 places, 40 transitions, 194 flow. Second operand 4 states and 106 transitions. [2025-03-04 09:57:19,503 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 81 transitions, 570 flow [2025-03-04 09:57:19,511 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 81 transitions, 564 flow, removed 3 selfloop flow, removed 3 redundant places. [2025-03-04 09:57:19,513 INFO L231 Difference]: Finished difference. Result has 66 places, 42 transitions, 216 flow [2025-03-04 09:57:19,514 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=188, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=216, PETRI_PLACES=66, PETRI_TRANSITIONS=42} [2025-03-04 09:57:19,514 INFO L279 CegarLoopForPetriNet]: 48 programPoint places, 18 predicate places. [2025-03-04 09:57:19,514 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 42 transitions, 216 flow [2025-03-04 09:57:19,514 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 09:57:19,514 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:57:19,514 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, 1, 1, 1] [2025-03-04 09:57:19,516 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-04 09:57:19,516 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-03-04 09:57:19,516 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:57:19,516 INFO L85 PathProgramCache]: Analyzing trace with hash -434392656, now seen corresponding path program 1 times [2025-03-04 09:57:19,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 09:57:19,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181002376] [2025-03-04 09:57:19,517 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:57:19,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 09:57:19,523 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes. [2025-03-04 09:57:19,528 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-03-04 09:57:19,529 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:57:19,529 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:57:19,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:57:19,619 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 09:57:19,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181002376] [2025-03-04 09:57:19,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [181002376] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:57:19,619 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:57:19,619 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-04 09:57:19,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690612780] [2025-03-04 09:57:19,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:57:19,620 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-04 09:57:19,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 09:57:19,620 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-04 09:57:19,620 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-04 09:57:19,620 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 44 [2025-03-04 09:57:19,621 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 42 transitions, 216 flow. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 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) [2025-03-04 09:57:19,622 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:57:19,622 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 44 [2025-03-04 09:57:19,622 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:57:19,844 INFO L124 PetriNetUnfolderBase]: 1904/3134 cut-off events. [2025-03-04 09:57:19,844 INFO L125 PetriNetUnfolderBase]: For 4782/4782 co-relation queries the response was YES. [2025-03-04 09:57:19,850 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9325 conditions, 3134 events. 1904/3134 cut-off events. For 4782/4782 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 16099 event pairs, 368 based on Foata normal form. 166/3297 useless extension candidates. Maximal degree in co-relation 9305. Up to 1001 conditions per place. [2025-03-04 09:57:19,854 INFO L140 encePairwiseOnDemand]: 38/44 looper letters, 57 selfloop transitions, 6 changer transitions 21/89 dead transitions. [2025-03-04 09:57:19,855 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 89 transitions, 650 flow [2025-03-04 09:57:19,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-04 09:57:19,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-03-04 09:57:19,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 123 transitions. [2025-03-04 09:57:19,856 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5590909090909091 [2025-03-04 09:57:19,856 INFO L175 Difference]: Start difference. First operand has 66 places, 42 transitions, 216 flow. Second operand 5 states and 123 transitions. [2025-03-04 09:57:19,856 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 89 transitions, 650 flow [2025-03-04 09:57:19,859 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 89 transitions, 636 flow, removed 2 selfloop flow, removed 3 redundant places. [2025-03-04 09:57:19,860 INFO L231 Difference]: Finished difference. Result has 69 places, 42 transitions, 230 flow [2025-03-04 09:57:19,860 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=205, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=230, PETRI_PLACES=69, PETRI_TRANSITIONS=42} [2025-03-04 09:57:19,860 INFO L279 CegarLoopForPetriNet]: 48 programPoint places, 21 predicate places. [2025-03-04 09:57:19,860 INFO L471 AbstractCegarLoop]: Abstraction has has 69 places, 42 transitions, 230 flow [2025-03-04 09:57:19,860 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 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) [2025-03-04 09:57:19,860 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:57:19,860 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, 1, 1, 1, 1, 1] [2025-03-04 09:57:19,860 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-03-04 09:57:19,861 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-03-04 09:57:19,861 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:57:19,861 INFO L85 PathProgramCache]: Analyzing trace with hash 45040585, now seen corresponding path program 1 times [2025-03-04 09:57:19,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 09:57:19,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997652178] [2025-03-04 09:57:19,861 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:57:19,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 09:57:19,866 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 28 statements into 1 equivalence classes. [2025-03-04 09:57:19,876 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 28 of 28 statements. [2025-03-04 09:57:19,876 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:57:19,876 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:57:19,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:57:19,963 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 09:57:19,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997652178] [2025-03-04 09:57:19,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [997652178] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:57:19,963 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:57:19,963 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-04 09:57:19,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025959623] [2025-03-04 09:57:19,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:57:19,964 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 09:57:19,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 09:57:19,964 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 09:57:19,964 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2025-03-04 09:57:19,964 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 44 [2025-03-04 09:57:19,964 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 42 transitions, 230 flow. Second operand has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 09:57:19,964 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:57:19,964 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 44 [2025-03-04 09:57:19,965 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:57:20,135 INFO L124 PetriNetUnfolderBase]: 1015/1671 cut-off events. [2025-03-04 09:57:20,135 INFO L125 PetriNetUnfolderBase]: For 3583/3583 co-relation queries the response was YES. [2025-03-04 09:57:20,139 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5510 conditions, 1671 events. 1015/1671 cut-off events. For 3583/3583 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 7707 event pairs, 253 based on Foata normal form. 48/1716 useless extension candidates. Maximal degree in co-relation 5489. Up to 642 conditions per place. [2025-03-04 09:57:20,140 INFO L140 encePairwiseOnDemand]: 38/44 looper letters, 0 selfloop transitions, 0 changer transitions 72/72 dead transitions. [2025-03-04 09:57:20,140 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 72 transitions, 543 flow [2025-03-04 09:57:20,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 09:57:20,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-04 09:57:20,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 120 transitions. [2025-03-04 09:57:20,141 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.45454545454545453 [2025-03-04 09:57:20,142 INFO L175 Difference]: Start difference. First operand has 69 places, 42 transitions, 230 flow. Second operand 6 states and 120 transitions. [2025-03-04 09:57:20,142 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 72 transitions, 543 flow [2025-03-04 09:57:20,145 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 72 transitions, 516 flow, removed 3 selfloop flow, removed 5 redundant places. [2025-03-04 09:57:20,146 INFO L231 Difference]: Finished difference. Result has 64 places, 0 transitions, 0 flow [2025-03-04 09:57:20,146 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=196, PETRI_DIFFERENCE_MINUEND_PLACES=59, 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=6, PETRI_FLOW=0, PETRI_PLACES=64, PETRI_TRANSITIONS=0} [2025-03-04 09:57:20,147 INFO L279 CegarLoopForPetriNet]: 48 programPoint places, 16 predicate places. [2025-03-04 09:57:20,147 INFO L471 AbstractCegarLoop]: Abstraction has has 64 places, 0 transitions, 0 flow [2025-03-04 09:57:20,147 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 09:57:20,151 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (4 of 5 remaining) [2025-03-04 09:57:20,152 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (3 of 5 remaining) [2025-03-04 09:57:20,152 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2025-03-04 09:57:20,152 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2025-03-04 09:57:20,152 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2025-03-04 09:57:20,153 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-03-04 09:57:20,153 INFO L422 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 09:57:20,156 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-03-04 09:57:20,156 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-04 09:57:20,162 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.03 09:57:20 BasicIcfg [2025-03-04 09:57:20,163 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-04 09:57:20,163 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-04 09:57:20,163 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-04 09:57:20,164 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-04 09:57:20,164 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 09:57:11" (3/4) ... [2025-03-04 09:57:20,166 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-03-04 09:57:20,168 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure P0 [2025-03-04 09:57:20,169 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure P1 [2025-03-04 09:57:20,169 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure P2 [2025-03-04 09:57:20,171 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 29 nodes and edges [2025-03-04 09:57:20,171 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2025-03-04 09:57:20,171 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2025-03-04 09:57:20,172 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2025-03-04 09:57:20,229 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-04 09:57:20,229 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-03-04 09:57:20,229 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-04 09:57:20,231 INFO L158 Benchmark]: Toolchain (without parser) took 9618.77ms. Allocated memory was 167.8MB in the beginning and 1.7GB in the end (delta: 1.5GB). Free memory was 124.2MB in the beginning and 624.0MB in the end (delta: -499.8MB). Peak memory consumption was 989.5MB. Max. memory is 16.1GB. [2025-03-04 09:57:20,232 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 201.3MB. Free memory is still 115.7MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 09:57:20,232 INFO L158 Benchmark]: CACSL2BoogieTranslator took 346.57ms. Allocated memory is still 167.8MB. Free memory was 124.2MB in the beginning and 104.7MB in the end (delta: 19.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-04 09:57:20,233 INFO L158 Benchmark]: Boogie Procedure Inliner took 23.93ms. Allocated memory is still 167.8MB. Free memory was 104.7MB in the beginning and 102.8MB in the end (delta: 1.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-04 09:57:20,234 INFO L158 Benchmark]: Boogie Preprocessor took 25.04ms. Allocated memory is still 167.8MB. Free memory was 102.8MB in the beginning and 101.3MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 09:57:20,234 INFO L158 Benchmark]: IcfgBuilder took 297.99ms. Allocated memory is still 167.8MB. Free memory was 101.3MB in the beginning and 81.0MB in the end (delta: 20.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-04 09:57:20,235 INFO L158 Benchmark]: TraceAbstraction took 8851.08ms. Allocated memory was 167.8MB in the beginning and 1.7GB in the end (delta: 1.5GB). Free memory was 81.0MB in the beginning and 628.1MB in the end (delta: -547.2MB). Peak memory consumption was 947.6MB. Max. memory is 16.1GB. [2025-03-04 09:57:20,235 INFO L158 Benchmark]: Witness Printer took 67.51ms. Allocated memory is still 1.7GB. Free memory was 628.1MB in the beginning and 624.0MB in the end (delta: 4.2MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 09:57:20,236 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 201.3MB. Free memory is still 115.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 346.57ms. Allocated memory is still 167.8MB. Free memory was 124.2MB in the beginning and 104.7MB in the end (delta: 19.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 23.93ms. Allocated memory is still 167.8MB. Free memory was 104.7MB in the beginning and 102.8MB in the end (delta: 1.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 25.04ms. Allocated memory is still 167.8MB. Free memory was 102.8MB in the beginning and 101.3MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 297.99ms. Allocated memory is still 167.8MB. Free memory was 101.3MB in the beginning and 81.0MB in the end (delta: 20.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 8851.08ms. Allocated memory was 167.8MB in the beginning and 1.7GB in the end (delta: 1.5GB). Free memory was 81.0MB in the beginning and 628.1MB in the end (delta: -547.2MB). Peak memory consumption was 947.6MB. Max. memory is 16.1GB. * Witness Printer took 67.51ms. Allocated memory is still 1.7GB. Free memory was 628.1MB in the beginning and 624.0MB in the end (delta: 4.2MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 778]: 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, 68 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: 8.8s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 7.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 868 SdHoareTripleChecker+Valid, 1.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 868 mSDsluCounter, 9 SdHoareTripleChecker+Invalid, 1.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 7 mSDsCounter, 41 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1753 IncrementalHoareTripleChecker+Invalid, 1794 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 41 mSolverCounterUnsat, 2 mSDtfsCounter, 1753 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 81 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=358occurred in iteration=5, InterpolantAutomatonStates: 75, 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, 1.1s InterpolantComputationTime, 208 NumberOfCodeBlocks, 208 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 198 ConstructedInterpolants, 0 QuantifiedInterpolants, 796 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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! [2025-03-04 09:57:20,251 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE