./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/pthread-wmm/safe030_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/safe030_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 1730fa7f98e17ee8b58920ef3daf63ee88225f1b42924032a532b5f5db33fba5 --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-04 09:57:50,946 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-04 09:57:51,002 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2025-03-04 09:57:51,005 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-04 09:57:51,005 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-04 09:57:51,027 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-04 09:57:51,027 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-04 09:57:51,027 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-04 09:57:51,028 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-04 09:57:51,028 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-04 09:57:51,028 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-04 09:57:51,028 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-04 09:57:51,028 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-04 09:57:51,028 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-04 09:57:51,028 INFO L153 SettingsManager]: * Use SBE=true [2025-03-04 09:57:51,028 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-04 09:57:51,028 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-04 09:57:51,028 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-04 09:57:51,028 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-04 09:57:51,028 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-04 09:57:51,029 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-03-04 09:57:51,029 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-03-04 09:57:51,029 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-03-04 09:57:51,029 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-04 09:57:51,029 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-03-04 09:57:51,029 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-04 09:57:51,029 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-04 09:57:51,029 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-04 09:57:51,029 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-04 09:57:51,029 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-04 09:57:51,029 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-04 09:57:51,029 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-04 09:57:51,029 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-04 09:57:51,029 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 09:57:51,029 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-04 09:57:51,029 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-04 09:57:51,029 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-04 09:57:51,029 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-04 09:57:51,030 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-04 09:57:51,030 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-04 09:57:51,030 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-04 09:57:51,030 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-04 09:57:51,030 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 -> 1730fa7f98e17ee8b58920ef3daf63ee88225f1b42924032a532b5f5db33fba5 [2025-03-04 09:57:51,260 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-04 09:57:51,267 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-04 09:57:51,269 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-04 09:57:51,270 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-04 09:57:51,270 INFO L274 PluginConnector]: CDTParser initialized [2025-03-04 09:57:51,272 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe030_tso.i [2025-03-04 09:57:52,458 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8573e6a5d/7c35e0b1faf3414f823be764aff8f0b9/FLAG52e55ce7e [2025-03-04 09:57:52,771 INFO L384 CDTParser]: Found 1 translation units. [2025-03-04 09:57:52,771 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe030_tso.i [2025-03-04 09:57:52,786 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8573e6a5d/7c35e0b1faf3414f823be764aff8f0b9/FLAG52e55ce7e [2025-03-04 09:57:53,041 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8573e6a5d/7c35e0b1faf3414f823be764aff8f0b9 [2025-03-04 09:57:53,044 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-04 09:57:53,045 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-04 09:57:53,046 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-04 09:57:53,046 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-04 09:57:53,049 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-04 09:57:53,050 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 09:57:53" (1/1) ... [2025-03-04 09:57:53,050 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2217ad44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:57:53, skipping insertion in model container [2025-03-04 09:57:53,050 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 09:57:53" (1/1) ... [2025-03-04 09:57:53,081 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 09:57:53,331 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 09:57:53,340 INFO L200 MainTranslator]: Completed pre-run [2025-03-04 09:57:53,384 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 09:57:53,414 INFO L204 MainTranslator]: Completed translation [2025-03-04 09:57:53,415 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:57:53 WrapperNode [2025-03-04 09:57:53,416 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-04 09:57:53,416 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-04 09:57:53,417 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-04 09:57:53,417 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-04 09:57:53,421 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:57:53" (1/1) ... [2025-03-04 09:57:53,432 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:57:53" (1/1) ... [2025-03-04 09:57:53,450 INFO L138 Inliner]: procedures = 175, calls = 42, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 58 [2025-03-04 09:57:53,450 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-04 09:57:53,451 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-04 09:57:53,451 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-04 09:57:53,452 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-04 09:57:53,457 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:57:53" (1/1) ... [2025-03-04 09:57:53,458 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:57:53" (1/1) ... [2025-03-04 09:57:53,459 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:57:53" (1/1) ... [2025-03-04 09:57:53,472 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 09:57:53,473 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:57:53" (1/1) ... [2025-03-04 09:57:53,473 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:57:53" (1/1) ... [2025-03-04 09:57:53,477 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:57:53" (1/1) ... [2025-03-04 09:57:53,481 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:57:53" (1/1) ... [2025-03-04 09:57:53,482 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:57:53" (1/1) ... [2025-03-04 09:57:53,482 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:57:53" (1/1) ... [2025-03-04 09:57:53,483 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-04 09:57:53,484 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-04 09:57:53,484 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-04 09:57:53,484 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-04 09:57:53,488 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:57:53" (1/1) ... [2025-03-04 09:57:53,493 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 09:57:53,502 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 09:57:53,518 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 09:57:53,520 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 09:57:53,538 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-03-04 09:57:53,538 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-04 09:57:53,538 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2025-03-04 09:57:53,538 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2025-03-04 09:57:53,538 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2025-03-04 09:57:53,538 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2025-03-04 09:57:53,538 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2025-03-04 09:57:53,538 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2025-03-04 09:57:53,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-04 09:57:53,538 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-03-04 09:57:53,538 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-04 09:57:53,539 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-04 09:57:53,539 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 09:57:53,643 INFO L256 CfgBuilder]: Building ICFG [2025-03-04 09:57:53,646 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-04 09:57:53,800 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-04 09:57:53,801 INFO L307 CfgBuilder]: Performing block encoding [2025-03-04 09:57:53,889 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-04 09:57:53,890 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-04 09:57:53,890 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 09:57:53 BoogieIcfgContainer [2025-03-04 09:57:53,890 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-04 09:57:53,892 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-04 09:57:53,892 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-04 09:57:53,897 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-04 09:57:53,897 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.03 09:57:53" (1/3) ... [2025-03-04 09:57:53,898 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@409d2103 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 09:57:53, skipping insertion in model container [2025-03-04 09:57:53,898 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:57:53" (2/3) ... [2025-03-04 09:57:53,899 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@409d2103 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 09:57:53, skipping insertion in model container [2025-03-04 09:57:53,899 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 09:57:53" (3/3) ... [2025-03-04 09:57:53,900 INFO L128 eAbstractionObserver]: Analyzing ICFG safe030_tso.i [2025-03-04 09:57:53,914 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-04 09:57:53,917 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG safe030_tso.i that has 4 procedures, 42 locations, 1 initial locations, 0 loop locations, and 2 error locations. [2025-03-04 09:57:53,920 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-04 09:57:53,973 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-03-04 09:57:54,000 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 51 places, 43 transitions, 98 flow [2025-03-04 09:57:54,036 INFO L124 PetriNetUnfolderBase]: 2/40 cut-off events. [2025-03-04 09:57:54,043 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-04 09:57:54,046 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50 conditions, 40 events. 2/40 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 69 event pairs, 0 based on Foata normal form. 0/36 useless extension candidates. Maximal degree in co-relation 42. Up to 2 conditions per place. [2025-03-04 09:57:54,046 INFO L82 GeneralOperation]: Start removeDead. Operand has 51 places, 43 transitions, 98 flow [2025-03-04 09:57:54,048 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 47 places, 39 transitions, 87 flow [2025-03-04 09:57:54,061 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-04 09:57:54,069 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;@6f7987c3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-04 09:57:54,070 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2025-03-04 09:57:54,080 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-04 09:57:54,080 INFO L124 PetriNetUnfolderBase]: 2/37 cut-off events. [2025-03-04 09:57:54,080 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-04 09:57:54,081 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:57:54,081 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 09:57:54,081 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 09:57:54,085 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:57:54,086 INFO L85 PathProgramCache]: Analyzing trace with hash 501168049, now seen corresponding path program 1 times [2025-03-04 09:57:54,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 09:57:54,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241874689] [2025-03-04 09:57:54,091 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:57:54,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 09:57:54,148 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-03-04 09:57:54,164 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-03-04 09:57:54,164 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:57:54,164 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:57:54,263 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 09:57:54,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 09:57:54,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241874689] [2025-03-04 09:57:54,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [241874689] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:57:54,265 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:57:54,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-03-04 09:57:54,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524763353] [2025-03-04 09:57:54,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:57:54,271 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 09:57:54,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 09:57:54,289 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 09:57:54,289 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 09:57:54,290 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2025-03-04 09:57:54,292 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 39 transitions, 87 flow. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 09:57:54,292 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:57:54,292 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2025-03-04 09:57:54,293 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:57:54,834 INFO L124 PetriNetUnfolderBase]: 4775/7461 cut-off events. [2025-03-04 09:57:54,834 INFO L125 PetriNetUnfolderBase]: For 36/36 co-relation queries the response was YES. [2025-03-04 09:57:54,846 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14356 conditions, 7461 events. 4775/7461 cut-off events. For 36/36 co-relation queries the response was YES. Maximal size of possible extension queue 287. Compared 44097 event pairs, 4775 based on Foata normal form. 648/8104 useless extension candidates. Maximal degree in co-relation 14345. Up to 6804 conditions per place. [2025-03-04 09:57:54,869 INFO L140 encePairwiseOnDemand]: 39/43 looper letters, 27 selfloop transitions, 1 changer transitions 1/35 dead transitions. [2025-03-04 09:57:54,869 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 35 transitions, 137 flow [2025-03-04 09:57:54,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 09:57:54,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-04 09:57:54,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 59 transitions. [2025-03-04 09:57:54,878 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4573643410852713 [2025-03-04 09:57:54,879 INFO L175 Difference]: Start difference. First operand has 47 places, 39 transitions, 87 flow. Second operand 3 states and 59 transitions. [2025-03-04 09:57:54,880 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 35 transitions, 137 flow [2025-03-04 09:57:54,902 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 35 transitions, 134 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-03-04 09:57:54,904 INFO L231 Difference]: Finished difference. Result has 44 places, 34 transitions, 76 flow [2025-03-04 09:57:54,906 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=76, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=76, PETRI_PLACES=44, PETRI_TRANSITIONS=34} [2025-03-04 09:57:54,909 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, -3 predicate places. [2025-03-04 09:57:54,910 INFO L471 AbstractCegarLoop]: Abstraction has has 44 places, 34 transitions, 76 flow [2025-03-04 09:57:54,911 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 09:57:54,911 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:57:54,911 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 09:57:54,911 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-04 09:57:54,911 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 09:57:54,912 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:57:54,912 INFO L85 PathProgramCache]: Analyzing trace with hash 501168548, now seen corresponding path program 1 times [2025-03-04 09:57:54,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 09:57:54,912 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084699923] [2025-03-04 09:57:54,912 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:57:54,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 09:57:54,923 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-03-04 09:57:54,935 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-03-04 09:57:54,935 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:57:54,936 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:57:55,142 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 09:57:55,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 09:57:55,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1084699923] [2025-03-04 09:57:55,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1084699923] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:57:55,143 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:57:55,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-04 09:57:55,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202788762] [2025-03-04 09:57:55,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:57:55,144 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-04 09:57:55,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 09:57:55,144 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-04 09:57:55,144 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-04 09:57:55,147 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2025-03-04 09:57:55,147 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 34 transitions, 76 flow. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 09:57:55,147 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:57:55,147 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2025-03-04 09:57:55,147 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:57:56,079 INFO L124 PetriNetUnfolderBase]: 8656/12544 cut-off events. [2025-03-04 09:57:56,079 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-04 09:57:56,095 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25003 conditions, 12544 events. 8656/12544 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 478. Compared 70752 event pairs, 3097 based on Foata normal form. 0/12239 useless extension candidates. Maximal degree in co-relation 24997. Up to 5674 conditions per place. [2025-03-04 09:57:56,120 INFO L140 encePairwiseOnDemand]: 32/43 looper letters, 46 selfloop transitions, 7 changer transitions 97/155 dead transitions. [2025-03-04 09:57:56,121 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 155 transitions, 622 flow [2025-03-04 09:57:56,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-04 09:57:56,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-03-04 09:57:56,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 233 transitions. [2025-03-04 09:57:56,122 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6020671834625323 [2025-03-04 09:57:56,122 INFO L175 Difference]: Start difference. First operand has 44 places, 34 transitions, 76 flow. Second operand 9 states and 233 transitions. [2025-03-04 09:57:56,122 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 155 transitions, 622 flow [2025-03-04 09:57:56,123 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 155 transitions, 621 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-04 09:57:56,130 INFO L231 Difference]: Finished difference. Result has 58 places, 39 transitions, 171 flow [2025-03-04 09:57:56,130 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=75, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=171, PETRI_PLACES=58, PETRI_TRANSITIONS=39} [2025-03-04 09:57:56,130 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 11 predicate places. [2025-03-04 09:57:56,130 INFO L471 AbstractCegarLoop]: Abstraction has has 58 places, 39 transitions, 171 flow [2025-03-04 09:57:56,131 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 09:57:56,131 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:57:56,131 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 09:57:56,131 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-04 09:57:56,131 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 09:57:56,131 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:57:56,131 INFO L85 PathProgramCache]: Analyzing trace with hash -1899343293, now seen corresponding path program 1 times [2025-03-04 09:57:56,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 09:57:56,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12146482] [2025-03-04 09:57:56,131 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:57:56,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 09:57:56,139 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-03-04 09:57:56,145 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-03-04 09:57:56,146 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:57:56,146 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:57:56,311 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 09:57:56,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 09:57:56,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12146482] [2025-03-04 09:57:56,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [12146482] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:57:56,312 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:57:56,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-04 09:57:56,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992250091] [2025-03-04 09:57:56,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:57:56,312 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 09:57:56,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 09:57:56,312 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 09:57:56,312 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-04 09:57:56,316 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2025-03-04 09:57:56,317 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 39 transitions, 171 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 09:57:56,317 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:57:56,317 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2025-03-04 09:57:56,317 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:57:57,058 INFO L124 PetriNetUnfolderBase]: 6699/9877 cut-off events. [2025-03-04 09:57:57,059 INFO L125 PetriNetUnfolderBase]: For 15987/15987 co-relation queries the response was YES. [2025-03-04 09:57:57,108 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30361 conditions, 9877 events. 6699/9877 cut-off events. For 15987/15987 co-relation queries the response was YES. Maximal size of possible extension queue 388. Compared 55745 event pairs, 949 based on Foata normal form. 286/10158 useless extension candidates. Maximal degree in co-relation 30346. Up to 5428 conditions per place. [2025-03-04 09:57:57,128 INFO L140 encePairwiseOnDemand]: 33/43 looper letters, 58 selfloop transitions, 11 changer transitions 86/160 dead transitions. [2025-03-04 09:57:57,129 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 160 transitions, 1041 flow [2025-03-04 09:57:57,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-04 09:57:57,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-03-04 09:57:57,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 238 transitions. [2025-03-04 09:57:57,131 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5534883720930233 [2025-03-04 09:57:57,131 INFO L175 Difference]: Start difference. First operand has 58 places, 39 transitions, 171 flow. Second operand 10 states and 238 transitions. [2025-03-04 09:57:57,131 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 160 transitions, 1041 flow [2025-03-04 09:57:57,195 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 160 transitions, 917 flow, removed 30 selfloop flow, removed 4 redundant places. [2025-03-04 09:57:57,197 INFO L231 Difference]: Finished difference. Result has 65 places, 46 transitions, 269 flow [2025-03-04 09:57:57,197 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=145, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=269, PETRI_PLACES=65, PETRI_TRANSITIONS=46} [2025-03-04 09:57:57,197 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 18 predicate places. [2025-03-04 09:57:57,197 INFO L471 AbstractCegarLoop]: Abstraction has has 65 places, 46 transitions, 269 flow [2025-03-04 09:57:57,198 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 09:57:57,198 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:57:57,198 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 09:57:57,198 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-04 09:57:57,198 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 09:57:57,199 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:57:57,199 INFO L85 PathProgramCache]: Analyzing trace with hash 930763531, now seen corresponding path program 1 times [2025-03-04 09:57:57,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 09:57:57,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482736402] [2025-03-04 09:57:57,199 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:57:57,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 09:57:57,204 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-03-04 09:57:57,207 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-03-04 09:57:57,208 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:57:57,208 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:57:57,317 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 09:57:57,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 09:57:57,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1482736402] [2025-03-04 09:57:57,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1482736402] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:57:57,318 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:57:57,318 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-04 09:57:57,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628514894] [2025-03-04 09:57:57,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:57:57,319 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 09:57:57,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 09:57:57,319 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 09:57:57,320 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-04 09:57:57,321 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2025-03-04 09:57:57,321 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 46 transitions, 269 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 09:57:57,321 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:57:57,321 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2025-03-04 09:57:57,322 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:57:58,038 INFO L124 PetriNetUnfolderBase]: 6332/9332 cut-off events. [2025-03-04 09:57:58,038 INFO L125 PetriNetUnfolderBase]: For 29984/29990 co-relation queries the response was YES. [2025-03-04 09:57:58,064 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32481 conditions, 9332 events. 6332/9332 cut-off events. For 29984/29990 co-relation queries the response was YES. Maximal size of possible extension queue 353. Compared 51339 event pairs, 1763 based on Foata normal form. 234/9563 useless extension candidates. Maximal degree in co-relation 32459. Up to 5380 conditions per place. [2025-03-04 09:57:58,094 INFO L140 encePairwiseOnDemand]: 33/43 looper letters, 63 selfloop transitions, 17 changer transitions 78/163 dead transitions. [2025-03-04 09:57:58,094 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 163 transitions, 1157 flow [2025-03-04 09:57:58,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-04 09:57:58,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-03-04 09:57:58,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 232 transitions. [2025-03-04 09:57:58,096 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5395348837209303 [2025-03-04 09:57:58,096 INFO L175 Difference]: Start difference. First operand has 65 places, 46 transitions, 269 flow. Second operand 10 states and 232 transitions. [2025-03-04 09:57:58,096 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 163 transitions, 1157 flow [2025-03-04 09:57:58,129 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 163 transitions, 1125 flow, removed 16 selfloop flow, removed 0 redundant places. [2025-03-04 09:57:58,131 INFO L231 Difference]: Finished difference. Result has 77 places, 55 transitions, 441 flow [2025-03-04 09:57:58,131 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=257, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=441, PETRI_PLACES=77, PETRI_TRANSITIONS=55} [2025-03-04 09:57:58,132 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 30 predicate places. [2025-03-04 09:57:58,132 INFO L471 AbstractCegarLoop]: Abstraction has has 77 places, 55 transitions, 441 flow [2025-03-04 09:57:58,132 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 09:57:58,132 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:57:58,132 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 09:57:58,132 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-04 09:57:58,133 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 09:57:58,133 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:57:58,133 INFO L85 PathProgramCache]: Analyzing trace with hash 1570912780, now seen corresponding path program 1 times [2025-03-04 09:57:58,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 09:57:58,133 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811412347] [2025-03-04 09:57:58,133 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:57:58,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 09:57:58,140 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-03-04 09:57:58,147 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-03-04 09:57:58,148 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:57:58,148 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:57:58,238 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 09:57:58,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 09:57:58,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1811412347] [2025-03-04 09:57:58,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1811412347] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:57:58,239 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:57:58,239 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-04 09:57:58,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507725474] [2025-03-04 09:57:58,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:57:58,239 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-04 09:57:58,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 09:57:58,240 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-04 09:57:58,240 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-04 09:57:58,241 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2025-03-04 09:57:58,242 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 55 transitions, 441 flow. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 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 09:57:58,242 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:57:58,242 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2025-03-04 09:57:58,242 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:57:58,833 INFO L124 PetriNetUnfolderBase]: 6003/9189 cut-off events. [2025-03-04 09:57:58,833 INFO L125 PetriNetUnfolderBase]: For 43352/43352 co-relation queries the response was YES. [2025-03-04 09:57:58,857 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35661 conditions, 9189 events. 6003/9189 cut-off events. For 43352/43352 co-relation queries the response was YES. Maximal size of possible extension queue 339. Compared 53258 event pairs, 2480 based on Foata normal form. 178/9365 useless extension candidates. Maximal degree in co-relation 35628. Up to 7452 conditions per place. [2025-03-04 09:57:58,883 INFO L140 encePairwiseOnDemand]: 37/43 looper letters, 64 selfloop transitions, 7 changer transitions 51/127 dead transitions. [2025-03-04 09:57:58,883 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 127 transitions, 1181 flow [2025-03-04 09:57:58,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-04 09:57:58,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-03-04 09:57:58,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 150 transitions. [2025-03-04 09:57:58,884 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4983388704318937 [2025-03-04 09:57:58,884 INFO L175 Difference]: Start difference. First operand has 77 places, 55 transitions, 441 flow. Second operand 7 states and 150 transitions. [2025-03-04 09:57:58,884 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 127 transitions, 1181 flow [2025-03-04 09:57:58,980 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 127 transitions, 1141 flow, removed 20 selfloop flow, removed 4 redundant places. [2025-03-04 09:57:58,982 INFO L231 Difference]: Finished difference. Result has 78 places, 60 transitions, 520 flow [2025-03-04 09:57:58,982 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=409, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=520, PETRI_PLACES=78, PETRI_TRANSITIONS=60} [2025-03-04 09:57:58,983 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 31 predicate places. [2025-03-04 09:57:58,985 INFO L471 AbstractCegarLoop]: Abstraction has has 78 places, 60 transitions, 520 flow [2025-03-04 09:57:58,985 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 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 09:57:58,985 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:57:58,985 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 09:57:58,985 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-04 09:57:58,985 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 09:57:58,986 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:57:58,986 INFO L85 PathProgramCache]: Analyzing trace with hash 400031002, now seen corresponding path program 1 times [2025-03-04 09:57:58,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 09:57:58,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642008966] [2025-03-04 09:57:58,986 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:57:58,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 09:57:58,993 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-03-04 09:57:58,998 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-03-04 09:57:58,999 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:57:58,999 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:57:59,069 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 09:57:59,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 09:57:59,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1642008966] [2025-03-04 09:57:59,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1642008966] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:57:59,070 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:57:59,070 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-04 09:57:59,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579441632] [2025-03-04 09:57:59,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:57:59,070 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-04 09:57:59,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 09:57:59,071 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-04 09:57:59,071 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-04 09:57:59,072 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2025-03-04 09:57:59,072 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 60 transitions, 520 flow. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 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 09:57:59,072 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:57:59,072 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2025-03-04 09:57:59,072 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:57:59,725 INFO L124 PetriNetUnfolderBase]: 8308/12537 cut-off events. [2025-03-04 09:57:59,725 INFO L125 PetriNetUnfolderBase]: For 67973/67983 co-relation queries the response was YES. [2025-03-04 09:57:59,761 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49160 conditions, 12537 events. 8308/12537 cut-off events. For 67973/67983 co-relation queries the response was YES. Maximal size of possible extension queue 427. Compared 75784 event pairs, 2679 based on Foata normal form. 256/12790 useless extension candidates. Maximal degree in co-relation 49124. Up to 6197 conditions per place. [2025-03-04 09:57:59,788 INFO L140 encePairwiseOnDemand]: 38/43 looper letters, 68 selfloop transitions, 8 changer transitions 62/143 dead transitions. [2025-03-04 09:57:59,788 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 143 transitions, 1326 flow [2025-03-04 09:57:59,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-04 09:57:59,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-03-04 09:57:59,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 165 transitions. [2025-03-04 09:57:59,791 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5481727574750831 [2025-03-04 09:57:59,791 INFO L175 Difference]: Start difference. First operand has 78 places, 60 transitions, 520 flow. Second operand 7 states and 165 transitions. [2025-03-04 09:57:59,792 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 143 transitions, 1326 flow [2025-03-04 09:58:00,014 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 143 transitions, 1285 flow, removed 17 selfloop flow, removed 7 redundant places. [2025-03-04 09:58:00,015 INFO L231 Difference]: Finished difference. Result has 78 places, 58 transitions, 507 flow [2025-03-04 09:58:00,016 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=491, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=507, PETRI_PLACES=78, PETRI_TRANSITIONS=58} [2025-03-04 09:58:00,016 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 31 predicate places. [2025-03-04 09:58:00,016 INFO L471 AbstractCegarLoop]: Abstraction has has 78 places, 58 transitions, 507 flow [2025-03-04 09:58:00,016 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 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 09:58:00,017 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:58:00,017 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 09:58:00,017 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-04 09:58:00,017 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 09:58:00,017 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:58:00,017 INFO L85 PathProgramCache]: Analyzing trace with hash -1952422494, now seen corresponding path program 1 times [2025-03-04 09:58:00,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 09:58:00,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911620608] [2025-03-04 09:58:00,018 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:58:00,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 09:58:00,022 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-03-04 09:58:00,024 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-03-04 09:58:00,025 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:58:00,025 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:58:00,105 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 09:58:00,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 09:58:00,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [911620608] [2025-03-04 09:58:00,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [911620608] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:58:00,106 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:58:00,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-04 09:58:00,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709554628] [2025-03-04 09:58:00,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:58:00,106 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 09:58:00,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 09:58:00,107 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 09:58:00,107 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-04 09:58:00,108 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2025-03-04 09:58:00,108 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 58 transitions, 507 flow. Second operand has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 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 09:58:00,108 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:58:00,108 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2025-03-04 09:58:00,108 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:58:01,262 INFO L124 PetriNetUnfolderBase]: 11091/16386 cut-off events. [2025-03-04 09:58:01,262 INFO L125 PetriNetUnfolderBase]: For 94022/94022 co-relation queries the response was YES. [2025-03-04 09:58:01,320 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62848 conditions, 16386 events. 11091/16386 cut-off events. For 94022/94022 co-relation queries the response was YES. Maximal size of possible extension queue 570. Compared 100294 event pairs, 2540 based on Foata normal form. 252/16634 useless extension candidates. Maximal degree in co-relation 62813. Up to 6772 conditions per place. [2025-03-04 09:58:01,360 INFO L140 encePairwiseOnDemand]: 33/43 looper letters, 70 selfloop transitions, 22 changer transitions 74/171 dead transitions. [2025-03-04 09:58:01,360 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 171 transitions, 1519 flow [2025-03-04 09:58:01,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-04 09:58:01,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-03-04 09:58:01,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 233 transitions. [2025-03-04 09:58:01,362 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.541860465116279 [2025-03-04 09:58:01,362 INFO L175 Difference]: Start difference. First operand has 78 places, 58 transitions, 507 flow. Second operand 10 states and 233 transitions. [2025-03-04 09:58:01,362 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 171 transitions, 1519 flow [2025-03-04 09:58:01,647 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 171 transitions, 1437 flow, removed 32 selfloop flow, removed 6 redundant places. [2025-03-04 09:58:01,648 INFO L231 Difference]: Finished difference. Result has 86 places, 59 transitions, 617 flow [2025-03-04 09:58:01,648 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=481, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=617, PETRI_PLACES=86, PETRI_TRANSITIONS=59} [2025-03-04 09:58:01,649 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 39 predicate places. [2025-03-04 09:58:01,649 INFO L471 AbstractCegarLoop]: Abstraction has has 86 places, 59 transitions, 617 flow [2025-03-04 09:58:01,649 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 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 09:58:01,649 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:58:01,649 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 09:58:01,649 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-04 09:58:01,649 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 09:58:01,650 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:58:01,650 INFO L85 PathProgramCache]: Analyzing trace with hash 292153454, now seen corresponding path program 1 times [2025-03-04 09:58:01,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 09:58:01,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1372659404] [2025-03-04 09:58:01,650 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:58:01,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 09:58:01,658 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-03-04 09:58:01,662 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-03-04 09:58:01,662 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:58:01,663 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:58:01,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:58:01,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 09:58:01,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1372659404] [2025-03-04 09:58:01,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1372659404] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:58:01,727 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:58:01,727 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-04 09:58:01,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263719609] [2025-03-04 09:58:01,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:58:01,727 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-04 09:58:01,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 09:58:01,728 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-04 09:58:01,729 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-04 09:58:01,732 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2025-03-04 09:58:01,732 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 59 transitions, 617 flow. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 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 09:58:01,732 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:58:01,732 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2025-03-04 09:58:01,732 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:58:03,019 INFO L124 PetriNetUnfolderBase]: 15101/22943 cut-off events. [2025-03-04 09:58:03,019 INFO L125 PetriNetUnfolderBase]: For 139038/139038 co-relation queries the response was YES. [2025-03-04 09:58:03,088 INFO L83 FinitePrefix]: Finished finitePrefix Result has 85464 conditions, 22943 events. 15101/22943 cut-off events. For 139038/139038 co-relation queries the response was YES. Maximal size of possible extension queue 770. Compared 154193 event pairs, 5122 based on Foata normal form. 316/23255 useless extension candidates. Maximal degree in co-relation 85424. Up to 10510 conditions per place. [2025-03-04 09:58:03,126 INFO L140 encePairwiseOnDemand]: 38/43 looper letters, 60 selfloop transitions, 7 changer transitions 68/140 dead transitions. [2025-03-04 09:58:03,126 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 140 transitions, 1525 flow [2025-03-04 09:58:03,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-04 09:58:03,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-03-04 09:58:03,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 161 transitions. [2025-03-04 09:58:03,128 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5348837209302325 [2025-03-04 09:58:03,128 INFO L175 Difference]: Start difference. First operand has 86 places, 59 transitions, 617 flow. Second operand 7 states and 161 transitions. [2025-03-04 09:58:03,128 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 140 transitions, 1525 flow [2025-03-04 09:58:03,465 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 140 transitions, 1447 flow, removed 39 selfloop flow, removed 6 redundant places. [2025-03-04 09:58:03,468 INFO L231 Difference]: Finished difference. Result has 85 places, 55 transitions, 558 flow [2025-03-04 09:58:03,468 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=591, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=558, PETRI_PLACES=85, PETRI_TRANSITIONS=55} [2025-03-04 09:58:03,474 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 38 predicate places. [2025-03-04 09:58:03,474 INFO L471 AbstractCegarLoop]: Abstraction has has 85 places, 55 transitions, 558 flow [2025-03-04 09:58:03,475 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 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 09:58:03,475 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:58:03,475 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] [2025-03-04 09:58:03,475 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-04 09:58:03,475 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 09:58:03,476 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:58:03,476 INFO L85 PathProgramCache]: Analyzing trace with hash -163640959, now seen corresponding path program 1 times [2025-03-04 09:58:03,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 09:58:03,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313014169] [2025-03-04 09:58:03,479 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:58:03,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 09:58:03,491 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-03-04 09:58:03,507 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-03-04 09:58:03,507 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:58:03,507 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:58:03,622 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 09:58:03,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 09:58:03,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [313014169] [2025-03-04 09:58:03,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [313014169] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:58:03,622 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:58:03,622 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 09:58:03,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839612250] [2025-03-04 09:58:03,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:58:03,622 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 09:58:03,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 09:58:03,623 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 09:58:03,623 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-04 09:58:03,623 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2025-03-04 09:58:03,623 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 55 transitions, 558 flow. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 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 09:58:03,623 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:58:03,623 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2025-03-04 09:58:03,623 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:58:04,628 INFO L124 PetriNetUnfolderBase]: 10958/17325 cut-off events. [2025-03-04 09:58:04,628 INFO L125 PetriNetUnfolderBase]: For 94634/94634 co-relation queries the response was YES. [2025-03-04 09:58:04,663 INFO L83 FinitePrefix]: Finished finitePrefix Result has 58128 conditions, 17325 events. 10958/17325 cut-off events. For 94634/94634 co-relation queries the response was YES. Maximal size of possible extension queue 665. Compared 117418 event pairs, 2225 based on Foata normal form. 856/18177 useless extension candidates. Maximal degree in co-relation 58088. Up to 9256 conditions per place. [2025-03-04 09:58:04,681 INFO L140 encePairwiseOnDemand]: 37/43 looper letters, 99 selfloop transitions, 5 changer transitions 13/122 dead transitions. [2025-03-04 09:58:04,681 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 122 transitions, 1570 flow [2025-03-04 09:58:04,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 09:58:04,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-04 09:58:04,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 103 transitions. [2025-03-04 09:58:04,682 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5988372093023255 [2025-03-04 09:58:04,682 INFO L175 Difference]: Start difference. First operand has 85 places, 55 transitions, 558 flow. Second operand 4 states and 103 transitions. [2025-03-04 09:58:04,682 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 122 transitions, 1570 flow [2025-03-04 09:58:04,743 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 122 transitions, 1416 flow, removed 24 selfloop flow, removed 10 redundant places. [2025-03-04 09:58:04,744 INFO L231 Difference]: Finished difference. Result has 76 places, 58 transitions, 520 flow [2025-03-04 09:58:04,745 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=486, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=520, PETRI_PLACES=76, PETRI_TRANSITIONS=58} [2025-03-04 09:58:04,745 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 29 predicate places. [2025-03-04 09:58:04,745 INFO L471 AbstractCegarLoop]: Abstraction has has 76 places, 58 transitions, 520 flow [2025-03-04 09:58:04,745 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 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 09:58:04,746 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:58:04,746 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 09:58:04,746 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-03-04 09:58:04,746 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 09:58:04,746 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:58:04,746 INFO L85 PathProgramCache]: Analyzing trace with hash -488528768, now seen corresponding path program 1 times [2025-03-04 09:58:04,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 09:58:04,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214458404] [2025-03-04 09:58:04,747 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:58:04,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 09:58:04,751 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-03-04 09:58:04,755 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-03-04 09:58:04,755 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:58:04,755 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:58:04,815 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 09:58:04,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 09:58:04,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214458404] [2025-03-04 09:58:04,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1214458404] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:58:04,816 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:58:04,816 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-04 09:58:04,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675024208] [2025-03-04 09:58:04,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:58:04,816 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-04 09:58:04,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 09:58:04,817 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-04 09:58:04,817 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-04 09:58:04,817 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2025-03-04 09:58:04,817 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 58 transitions, 520 flow. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 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 09:58:04,817 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:58:04,817 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2025-03-04 09:58:04,817 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:58:05,413 INFO L124 PetriNetUnfolderBase]: 6543/10272 cut-off events. [2025-03-04 09:58:05,413 INFO L125 PetriNetUnfolderBase]: For 39395/39395 co-relation queries the response was YES. [2025-03-04 09:58:05,434 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34994 conditions, 10272 events. 6543/10272 cut-off events. For 39395/39395 co-relation queries the response was YES. Maximal size of possible extension queue 402. Compared 63222 event pairs, 857 based on Foata normal form. 672/10940 useless extension candidates. Maximal degree in co-relation 34960. Up to 3216 conditions per place. [2025-03-04 09:58:05,444 INFO L140 encePairwiseOnDemand]: 37/43 looper letters, 70 selfloop transitions, 8 changer transitions 46/129 dead transitions. [2025-03-04 09:58:05,445 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 129 transitions, 1456 flow [2025-03-04 09:58:05,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-04 09:58:05,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-03-04 09:58:05,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 131 transitions. [2025-03-04 09:58:05,446 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6093023255813953 [2025-03-04 09:58:05,446 INFO L175 Difference]: Start difference. First operand has 76 places, 58 transitions, 520 flow. Second operand 5 states and 131 transitions. [2025-03-04 09:58:05,446 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 129 transitions, 1456 flow [2025-03-04 09:58:05,480 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 129 transitions, 1394 flow, removed 27 selfloop flow, removed 4 redundant places. [2025-03-04 09:58:05,481 INFO L231 Difference]: Finished difference. Result has 78 places, 49 transitions, 408 flow [2025-03-04 09:58:05,481 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=484, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=408, PETRI_PLACES=78, PETRI_TRANSITIONS=49} [2025-03-04 09:58:05,482 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 31 predicate places. [2025-03-04 09:58:05,482 INFO L471 AbstractCegarLoop]: Abstraction has has 78 places, 49 transitions, 408 flow [2025-03-04 09:58:05,482 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 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 09:58:05,482 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:58:05,482 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] [2025-03-04 09:58:05,482 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-03-04 09:58:05,482 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-03-04 09:58:05,483 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:58:05,483 INFO L85 PathProgramCache]: Analyzing trace with hash 1824789745, now seen corresponding path program 1 times [2025-03-04 09:58:05,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 09:58:05,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542445110] [2025-03-04 09:58:05,483 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:58:05,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 09:58:05,488 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 27 statements into 1 equivalence classes. [2025-03-04 09:58:05,492 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 27 of 27 statements. [2025-03-04 09:58:05,492 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:58:05,492 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:58:05,569 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 09:58:05,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 09:58:05,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542445110] [2025-03-04 09:58:05,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [542445110] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:58:05,569 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:58:05,569 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-04 09:58:05,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267841998] [2025-03-04 09:58:05,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:58:05,570 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 09:58:05,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 09:58:05,570 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 09:58:05,570 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2025-03-04 09:58:05,570 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2025-03-04 09:58:05,570 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 49 transitions, 408 flow. Second operand has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 6 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 09:58:05,571 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:58:05,571 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2025-03-04 09:58:05,571 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:58:05,805 INFO L124 PetriNetUnfolderBase]: 1537/2443 cut-off events. [2025-03-04 09:58:05,805 INFO L125 PetriNetUnfolderBase]: For 9181/9181 co-relation queries the response was YES. [2025-03-04 09:58:05,810 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8687 conditions, 2443 events. 1537/2443 cut-off events. For 9181/9181 co-relation queries the response was YES. Maximal size of possible extension queue 106. Compared 11769 event pairs, 237 based on Foata normal form. 120/2561 useless extension candidates. Maximal degree in co-relation 8665. Up to 876 conditions per place. [2025-03-04 09:58:05,812 INFO L140 encePairwiseOnDemand]: 37/43 looper letters, 0 selfloop transitions, 0 changer transitions 86/86 dead transitions. [2025-03-04 09:58:05,812 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 86 transitions, 883 flow [2025-03-04 09:58:05,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 09:58:05,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-04 09:58:05,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 130 transitions. [2025-03-04 09:58:05,813 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5038759689922481 [2025-03-04 09:58:05,813 INFO L175 Difference]: Start difference. First operand has 78 places, 49 transitions, 408 flow. Second operand 6 states and 130 transitions. [2025-03-04 09:58:05,813 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 86 transitions, 883 flow [2025-03-04 09:58:05,824 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 86 transitions, 705 flow, removed 10 selfloop flow, removed 14 redundant places. [2025-03-04 09:58:05,824 INFO L231 Difference]: Finished difference. Result has 64 places, 0 transitions, 0 flow [2025-03-04 09:58:05,824 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=283, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=64, PETRI_TRANSITIONS=0} [2025-03-04 09:58:05,825 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 17 predicate places. [2025-03-04 09:58:05,825 INFO L471 AbstractCegarLoop]: Abstraction has has 64 places, 0 transitions, 0 flow [2025-03-04 09:58:05,825 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 6 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 09:58:05,828 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (4 of 5 remaining) [2025-03-04 09:58:05,828 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (3 of 5 remaining) [2025-03-04 09:58:05,828 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2025-03-04 09:58:05,828 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2025-03-04 09:58:05,828 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2025-03-04 09:58:05,828 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-03-04 09:58:05,828 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 09:58:05,830 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-03-04 09:58:05,830 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-04 09:58:05,834 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.03 09:58:05 BasicIcfg [2025-03-04 09:58:05,834 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-04 09:58:05,835 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-04 09:58:05,835 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-04 09:58:05,835 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-04 09:58:05,836 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 09:57:53" (3/4) ... [2025-03-04 09:58:05,837 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-03-04 09:58:05,839 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure P0 [2025-03-04 09:58:05,839 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure P1 [2025-03-04 09:58:05,839 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure P2 [2025-03-04 09:58:05,842 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 27 nodes and edges [2025-03-04 09:58:05,842 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2025-03-04 09:58:05,842 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2025-03-04 09:58:05,842 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2025-03-04 09:58:05,893 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-04 09:58:05,894 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-03-04 09:58:05,894 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-04 09:58:05,894 INFO L158 Benchmark]: Toolchain (without parser) took 12849.79ms. Allocated memory was 142.6MB in the beginning and 2.1GB in the end (delta: 2.0GB). Free memory was 104.5MB in the beginning and 1.5GB in the end (delta: -1.4GB). Peak memory consumption was 582.8MB. Max. memory is 16.1GB. [2025-03-04 09:58:05,895 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 201.3MB. Free memory was 125.8MB in the beginning and 125.5MB in the end (delta: 307.7kB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 09:58:05,898 INFO L158 Benchmark]: CACSL2BoogieTranslator took 370.29ms. Allocated memory is still 142.6MB. Free memory was 104.5MB in the beginning and 84.0MB in the end (delta: 20.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-03-04 09:58:05,899 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.91ms. Allocated memory is still 142.6MB. Free memory was 84.0MB in the beginning and 83.0MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 09:58:05,899 INFO L158 Benchmark]: Boogie Preprocessor took 32.54ms. Allocated memory is still 142.6MB. Free memory was 83.0MB in the beginning and 80.8MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 09:58:05,899 INFO L158 Benchmark]: IcfgBuilder took 406.35ms. Allocated memory is still 142.6MB. Free memory was 80.8MB in the beginning and 62.0MB in the end (delta: 18.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-04 09:58:05,899 INFO L158 Benchmark]: TraceAbstraction took 11941.84ms. Allocated memory was 142.6MB in the beginning and 2.1GB in the end (delta: 2.0GB). Free memory was 61.0MB in the beginning and 1.5GB in the end (delta: -1.4GB). Peak memory consumption was 540.8MB. Max. memory is 16.1GB. [2025-03-04 09:58:05,899 INFO L158 Benchmark]: Witness Printer took 59.13ms. Allocated memory is still 2.1GB. Free memory was 1.5GB in the beginning and 1.5GB in the end (delta: 4.2MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 09:58:05,901 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 was 125.8MB in the beginning and 125.5MB in the end (delta: 307.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 370.29ms. Allocated memory is still 142.6MB. Free memory was 104.5MB in the beginning and 84.0MB in the end (delta: 20.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.91ms. Allocated memory is still 142.6MB. Free memory was 84.0MB in the beginning and 83.0MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 32.54ms. Allocated memory is still 142.6MB. Free memory was 83.0MB in the beginning and 80.8MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 406.35ms. Allocated memory is still 142.6MB. Free memory was 80.8MB in the beginning and 62.0MB in the end (delta: 18.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 11941.84ms. Allocated memory was 142.6MB in the beginning and 2.1GB in the end (delta: 2.0GB). Free memory was 61.0MB in the beginning and 1.5GB in the end (delta: -1.4GB). Peak memory consumption was 540.8MB. Max. memory is 16.1GB. * Witness Printer took 59.13ms. Allocated memory is still 2.1GB. Free memory was 1.5GB in the beginning and 1.5GB 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: 772]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 17]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 66 locations, 5 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 11.8s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 10.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 802 SdHoareTripleChecker+Valid, 1.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 798 mSDsluCounter, 8 SdHoareTripleChecker+Invalid, 1.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6 mSDsCounter, 32 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1954 IncrementalHoareTripleChecker+Invalid, 1986 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 32 mSolverCounterUnsat, 2 mSDtfsCounter, 1954 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 81 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=617occurred in iteration=7, InterpolantAutomatonStates: 78, 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, 215 NumberOfCodeBlocks, 215 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 204 ConstructedInterpolants, 0 QuantifiedInterpolants, 708 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 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 09:58:05,920 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