./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/pthread-wmm/safe035_power.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version e2fb8bed Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/pthread-wmm/safe035_power.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 6415bffc70cf05f8f6460106962f2f9c59b321fd2fc94a45894cc3c1f3d85b66 --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-09 01:11:02,428 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-09 01:11:02,473 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2025-03-09 01:11:02,478 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-09 01:11:02,478 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-09 01:11:02,497 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-09 01:11:02,499 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-09 01:11:02,499 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-09 01:11:02,499 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-09 01:11:02,499 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-09 01:11:02,499 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-09 01:11:02,499 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-09 01:11:02,499 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-09 01:11:02,499 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-09 01:11:02,499 INFO L153 SettingsManager]: * Use SBE=true [2025-03-09 01:11:02,499 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-09 01:11:02,499 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-09 01:11:02,500 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-09 01:11:02,500 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-09 01:11:02,500 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-09 01:11:02,500 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-03-09 01:11:02,500 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-03-09 01:11:02,500 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-03-09 01:11:02,500 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-09 01:11:02,500 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-03-09 01:11:02,500 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-09 01:11:02,500 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-09 01:11:02,500 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-09 01:11:02,500 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-09 01:11:02,500 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-09 01:11:02,500 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-09 01:11:02,500 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-09 01:11:02,500 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-09 01:11:02,501 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-09 01:11:02,501 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-09 01:11:02,501 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-09 01:11:02,502 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-09 01:11:02,502 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-09 01:11:02,502 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-09 01:11:02,502 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-09 01:11:02,502 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-09 01:11:02,502 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-09 01:11:02,502 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 -> 6415bffc70cf05f8f6460106962f2f9c59b321fd2fc94a45894cc3c1f3d85b66 [2025-03-09 01:11:02,712 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-09 01:11:02,717 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-09 01:11:02,718 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-09 01:11:02,719 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-09 01:11:02,719 INFO L274 PluginConnector]: CDTParser initialized [2025-03-09 01:11:02,720 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe035_power.i [2025-03-09 01:11:03,899 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9480d2ee1/9f2df44763454925bde847f974a80e34/FLAG7354a16a4 [2025-03-09 01:11:04,218 INFO L384 CDTParser]: Found 1 translation units. [2025-03-09 01:11:04,219 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe035_power.i [2025-03-09 01:11:04,240 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9480d2ee1/9f2df44763454925bde847f974a80e34/FLAG7354a16a4 [2025-03-09 01:11:04,260 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9480d2ee1/9f2df44763454925bde847f974a80e34 [2025-03-09 01:11:04,263 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-09 01:11:04,264 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-09 01:11:04,265 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-09 01:11:04,266 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-09 01:11:04,269 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-09 01:11:04,270 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.03 01:11:04" (1/1) ... [2025-03-09 01:11:04,271 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@758e891 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:11:04, skipping insertion in model container [2025-03-09 01:11:04,271 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.03 01:11:04" (1/1) ... [2025-03-09 01:11:04,309 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-09 01:11:04,558 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-09 01:11:04,566 INFO L200 MainTranslator]: Completed pre-run [2025-03-09 01:11:04,639 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-09 01:11:04,670 INFO L204 MainTranslator]: Completed translation [2025-03-09 01:11:04,671 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:11:04 WrapperNode [2025-03-09 01:11:04,671 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-09 01:11:04,672 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-09 01:11:04,672 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-09 01:11:04,672 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-09 01:11:04,677 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:11:04" (1/1) ... [2025-03-09 01:11:04,689 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:11:04" (1/1) ... [2025-03-09 01:11:04,712 INFO L138 Inliner]: procedures = 175, calls = 49, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 169 [2025-03-09 01:11:04,713 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-09 01:11:04,713 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-09 01:11:04,713 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-09 01:11:04,713 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-09 01:11:04,720 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:11:04" (1/1) ... [2025-03-09 01:11:04,720 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:11:04" (1/1) ... [2025-03-09 01:11:04,723 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:11:04" (1/1) ... [2025-03-09 01:11:04,742 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2025-03-09 01:11:04,744 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:11:04" (1/1) ... [2025-03-09 01:11:04,745 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:11:04" (1/1) ... [2025-03-09 01:11:04,758 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:11:04" (1/1) ... [2025-03-09 01:11:04,760 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:11:04" (1/1) ... [2025-03-09 01:11:04,761 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:11:04" (1/1) ... [2025-03-09 01:11:04,768 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:11:04" (1/1) ... [2025-03-09 01:11:04,773 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-09 01:11:04,774 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-09 01:11:04,774 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-09 01:11:04,774 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-09 01:11:04,774 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:11:04" (1/1) ... [2025-03-09 01:11:04,781 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-09 01:11:04,792 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 01:11:04,806 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-09 01:11:04,809 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-09 01:11:04,824 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-03-09 01:11:04,825 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-09 01:11:04,825 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2025-03-09 01:11:04,825 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2025-03-09 01:11:04,825 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2025-03-09 01:11:04,825 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2025-03-09 01:11:04,825 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2025-03-09 01:11:04,825 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2025-03-09 01:11:04,825 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-09 01:11:04,825 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-03-09 01:11:04,825 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-09 01:11:04,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-09 01:11:04,826 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-09 01:11:04,939 INFO L256 CfgBuilder]: Building ICFG [2025-03-09 01:11:04,940 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-09 01:11:05,280 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-09 01:11:05,281 INFO L307 CfgBuilder]: Performing block encoding [2025-03-09 01:11:05,530 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-09 01:11:05,530 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-09 01:11:05,531 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 01:11:05 BoogieIcfgContainer [2025-03-09 01:11:05,531 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-09 01:11:05,532 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-09 01:11:05,532 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-09 01:11:05,536 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-09 01:11:05,536 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.03 01:11:04" (1/3) ... [2025-03-09 01:11:05,537 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d01ba11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.03 01:11:05, skipping insertion in model container [2025-03-09 01:11:05,537 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:11:04" (2/3) ... [2025-03-09 01:11:05,539 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d01ba11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.03 01:11:05, skipping insertion in model container [2025-03-09 01:11:05,539 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 01:11:05" (3/3) ... [2025-03-09 01:11:05,540 INFO L128 eAbstractionObserver]: Analyzing ICFG safe035_power.i [2025-03-09 01:11:05,552 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-09 01:11:05,554 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG safe035_power.i that has 4 procedures, 46 locations, 1 initial locations, 0 loop locations, and 3 error locations. [2025-03-09 01:11:05,554 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-09 01:11:05,627 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-03-09 01:11:05,651 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 55 places, 47 transitions, 106 flow [2025-03-09 01:11:05,680 INFO L124 PetriNetUnfolderBase]: 2/44 cut-off events. [2025-03-09 01:11:05,683 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-09 01:11:05,686 INFO L83 FinitePrefix]: Finished finitePrefix Result has 54 conditions, 44 events. 2/44 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 88 event pairs, 0 based on Foata normal form. 0/39 useless extension candidates. Maximal degree in co-relation 46. Up to 2 conditions per place. [2025-03-09 01:11:05,688 INFO L82 GeneralOperation]: Start removeDead. Operand has 55 places, 47 transitions, 106 flow [2025-03-09 01:11:05,690 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 52 places, 44 transitions, 97 flow [2025-03-09 01:11:05,697 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-09 01:11:05,708 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;@fe70e49, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-09 01:11:05,710 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2025-03-09 01:11:05,715 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-09 01:11:05,716 INFO L124 PetriNetUnfolderBase]: 0/18 cut-off events. [2025-03-09 01:11:05,716 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-09 01:11:05,716 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 01:11:05,717 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 01:11:05,717 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P2Err0ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2025-03-09 01:11:05,722 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 01:11:05,723 INFO L85 PathProgramCache]: Analyzing trace with hash 812206966, now seen corresponding path program 1 times [2025-03-09 01:11:05,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 01:11:05,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586016622] [2025-03-09 01:11:05,730 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 01:11:05,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 01:11:05,789 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-03-09 01:11:05,820 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-03-09 01:11:05,820 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 01:11:05,820 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 01:11:06,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 01:11:06,157 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 01:11:06,157 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586016622] [2025-03-09 01:11:06,157 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1586016622] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 01:11:06,157 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 01:11:06,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-03-09 01:11:06,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362801910] [2025-03-09 01:11:06,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 01:11:06,164 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-09 01:11:06,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 01:11:06,182 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-09 01:11:06,182 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-09 01:11:06,184 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 47 [2025-03-09 01:11:06,186 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 44 transitions, 97 flow. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 01:11:06,186 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 01:11:06,186 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 47 [2025-03-09 01:11:06,187 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 01:11:07,741 INFO L124 PetriNetUnfolderBase]: 8658/12406 cut-off events. [2025-03-09 01:11:07,741 INFO L125 PetriNetUnfolderBase]: For 50/50 co-relation queries the response was YES. [2025-03-09 01:11:07,769 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24726 conditions, 12406 events. 8658/12406 cut-off events. For 50/50 co-relation queries the response was YES. Maximal size of possible extension queue 408. Compared 69086 event pairs, 972 based on Foata normal form. 686/13081 useless extension candidates. Maximal degree in co-relation 24715. Up to 10627 conditions per place. [2025-03-09 01:11:07,814 INFO L140 encePairwiseOnDemand]: 42/47 looper letters, 50 selfloop transitions, 2 changer transitions 2/61 dead transitions. [2025-03-09 01:11:07,814 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 61 transitions, 239 flow [2025-03-09 01:11:07,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-09 01:11:07,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-09 01:11:07,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 89 transitions. [2025-03-09 01:11:07,824 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6312056737588653 [2025-03-09 01:11:07,825 INFO L175 Difference]: Start difference. First operand has 52 places, 44 transitions, 97 flow. Second operand 3 states and 89 transitions. [2025-03-09 01:11:07,826 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 61 transitions, 239 flow [2025-03-09 01:11:07,829 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 61 transitions, 236 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-03-09 01:11:07,830 INFO L231 Difference]: Finished difference. Result has 49 places, 39 transitions, 88 flow [2025-03-09 01:11:07,832 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=86, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=88, PETRI_PLACES=49, PETRI_TRANSITIONS=39} [2025-03-09 01:11:07,834 INFO L279 CegarLoopForPetriNet]: 52 programPoint places, -3 predicate places. [2025-03-09 01:11:07,834 INFO L471 AbstractCegarLoop]: Abstraction has has 49 places, 39 transitions, 88 flow [2025-03-09 01:11:07,834 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 01:11:07,834 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 01:11:07,835 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 01:11:07,835 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-09 01:11:07,835 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2025-03-09 01:11:07,836 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 01:11:07,836 INFO L85 PathProgramCache]: Analyzing trace with hash -1141359809, now seen corresponding path program 1 times [2025-03-09 01:11:07,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 01:11:07,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603045975] [2025-03-09 01:11:07,836 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 01:11:07,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 01:11:07,854 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-03-09 01:11:07,879 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-03-09 01:11:07,879 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 01:11:07,879 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 01:11:07,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 01:11:07,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 01:11:07,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603045975] [2025-03-09 01:11:07,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [603045975] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 01:11:07,943 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 01:11:07,943 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-03-09 01:11:07,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115748611] [2025-03-09 01:11:07,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 01:11:07,944 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-09 01:11:07,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 01:11:07,945 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-09 01:11:07,945 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-09 01:11:07,946 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 47 [2025-03-09 01:11:07,946 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 39 transitions, 88 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) [2025-03-09 01:11:07,947 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 01:11:07,947 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 47 [2025-03-09 01:11:07,947 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 01:11:09,076 INFO L124 PetriNetUnfolderBase]: 7776/11818 cut-off events. [2025-03-09 01:11:09,077 INFO L125 PetriNetUnfolderBase]: For 441/441 co-relation queries the response was YES. [2025-03-09 01:11:09,090 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23353 conditions, 11818 events. 7776/11818 cut-off events. For 441/441 co-relation queries the response was YES. Maximal size of possible extension queue 411. Compared 71416 event pairs, 7776 based on Foata normal form. 343/12101 useless extension candidates. Maximal degree in co-relation 23343. Up to 10976 conditions per place. [2025-03-09 01:11:09,125 INFO L140 encePairwiseOnDemand]: 45/47 looper letters, 30 selfloop transitions, 1 changer transitions 1/38 dead transitions. [2025-03-09 01:11:09,125 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 38 transitions, 150 flow [2025-03-09 01:11:09,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-09 01:11:09,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-09 01:11:09,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 60 transitions. [2025-03-09 01:11:09,127 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.425531914893617 [2025-03-09 01:11:09,127 INFO L175 Difference]: Start difference. First operand has 49 places, 39 transitions, 88 flow. Second operand 3 states and 60 transitions. [2025-03-09 01:11:09,127 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 38 transitions, 150 flow [2025-03-09 01:11:09,131 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 38 transitions, 146 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-09 01:11:09,132 INFO L231 Difference]: Finished difference. Result has 47 places, 37 transitions, 82 flow [2025-03-09 01:11:09,132 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=82, PETRI_PLACES=47, PETRI_TRANSITIONS=37} [2025-03-09 01:11:09,132 INFO L279 CegarLoopForPetriNet]: 52 programPoint places, -5 predicate places. [2025-03-09 01:11:09,133 INFO L471 AbstractCegarLoop]: Abstraction has has 47 places, 37 transitions, 82 flow [2025-03-09 01:11:09,133 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) [2025-03-09 01:11:09,133 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 01:11:09,133 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 01:11:09,133 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-09 01:11:09,133 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2025-03-09 01:11:09,133 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 01:11:09,133 INFO L85 PathProgramCache]: Analyzing trace with hash -1141359401, now seen corresponding path program 1 times [2025-03-09 01:11:09,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 01:11:09,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1584339344] [2025-03-09 01:11:09,134 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 01:11:09,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 01:11:09,144 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-03-09 01:11:09,193 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-03-09 01:11:09,194 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 01:11:09,194 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 01:11:09,368 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 01:11:09,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 01:11:09,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1584339344] [2025-03-09 01:11:09,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1584339344] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 01:11:09,369 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 01:11:09,369 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 01:11:09,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588931344] [2025-03-09 01:11:09,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 01:11:09,370 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 01:11:09,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 01:11:09,371 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 01:11:09,371 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-09 01:11:09,371 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 47 [2025-03-09 01:11:09,371 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 37 transitions, 82 flow. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 01:11:09,371 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 01:11:09,372 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 47 [2025-03-09 01:11:09,372 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 01:11:10,050 INFO L124 PetriNetUnfolderBase]: 5308/8421 cut-off events. [2025-03-09 01:11:10,051 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-09 01:11:10,062 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16297 conditions, 8421 events. 5308/8421 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 293. Compared 51063 event pairs, 994 based on Foata normal form. 343/8753 useless extension candidates. Maximal degree in co-relation 16291. Up to 4351 conditions per place. [2025-03-09 01:11:10,082 INFO L140 encePairwiseOnDemand]: 41/47 looper letters, 64 selfloop transitions, 5 changer transitions 1/76 dead transitions. [2025-03-09 01:11:10,082 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 76 transitions, 304 flow [2025-03-09 01:11:10,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 01:11:10,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-09 01:11:10,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 112 transitions. [2025-03-09 01:11:10,083 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5957446808510638 [2025-03-09 01:11:10,084 INFO L175 Difference]: Start difference. First operand has 47 places, 37 transitions, 82 flow. Second operand 4 states and 112 transitions. [2025-03-09 01:11:10,084 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 76 transitions, 304 flow [2025-03-09 01:11:10,084 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 76 transitions, 303 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-09 01:11:10,085 INFO L231 Difference]: Finished difference. Result has 50 places, 40 transitions, 115 flow [2025-03-09 01:11:10,085 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=81, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=115, PETRI_PLACES=50, PETRI_TRANSITIONS=40} [2025-03-09 01:11:10,086 INFO L279 CegarLoopForPetriNet]: 52 programPoint places, -2 predicate places. [2025-03-09 01:11:10,086 INFO L471 AbstractCegarLoop]: Abstraction has has 50 places, 40 transitions, 115 flow [2025-03-09 01:11:10,086 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 01:11:10,086 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 01:11:10,086 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] [2025-03-09 01:11:10,086 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-09 01:11:10,087 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2025-03-09 01:11:10,087 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 01:11:10,087 INFO L85 PathProgramCache]: Analyzing trace with hash 2055532008, now seen corresponding path program 1 times [2025-03-09 01:11:10,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 01:11:10,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713220085] [2025-03-09 01:11:10,087 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 01:11:10,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 01:11:10,095 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-03-09 01:11:10,176 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-03-09 01:11:10,180 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 01:11:10,181 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 01:11:10,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 01:11:10,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 01:11:10,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713220085] [2025-03-09 01:11:10,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [713220085] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 01:11:10,342 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 01:11:10,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-09 01:11:10,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [560340119] [2025-03-09 01:11:10,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 01:11:10,343 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-09 01:11:10,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 01:11:10,343 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-09 01:11:10,343 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-09 01:11:10,343 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 47 [2025-03-09 01:11:10,343 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 40 transitions, 115 flow. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 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) [2025-03-09 01:11:10,343 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 01:11:10,343 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 47 [2025-03-09 01:11:10,343 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 01:11:10,807 INFO L124 PetriNetUnfolderBase]: 2833/4471 cut-off events. [2025-03-09 01:11:10,808 INFO L125 PetriNetUnfolderBase]: For 777/777 co-relation queries the response was YES. [2025-03-09 01:11:10,815 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10062 conditions, 4471 events. 2833/4471 cut-off events. For 777/777 co-relation queries the response was YES. Maximal size of possible extension queue 124. Compared 23069 event pairs, 651 based on Foata normal form. 218/4678 useless extension candidates. Maximal degree in co-relation 10053. Up to 1515 conditions per place. [2025-03-09 01:11:10,826 INFO L140 encePairwiseOnDemand]: 41/47 looper letters, 82 selfloop transitions, 8 changer transitions 1/97 dead transitions. [2025-03-09 01:11:10,826 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 97 transitions, 432 flow [2025-03-09 01:11:10,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-09 01:11:10,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-03-09 01:11:10,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 143 transitions. [2025-03-09 01:11:10,828 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6085106382978723 [2025-03-09 01:11:10,828 INFO L175 Difference]: Start difference. First operand has 50 places, 40 transitions, 115 flow. Second operand 5 states and 143 transitions. [2025-03-09 01:11:10,828 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 97 transitions, 432 flow [2025-03-09 01:11:10,830 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 97 transitions, 422 flow, removed 1 selfloop flow, removed 2 redundant places. [2025-03-09 01:11:10,831 INFO L231 Difference]: Finished difference. Result has 54 places, 43 transitions, 155 flow [2025-03-09 01:11:10,831 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=107, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=155, PETRI_PLACES=54, PETRI_TRANSITIONS=43} [2025-03-09 01:11:10,831 INFO L279 CegarLoopForPetriNet]: 52 programPoint places, 2 predicate places. [2025-03-09 01:11:10,832 INFO L471 AbstractCegarLoop]: Abstraction has has 54 places, 43 transitions, 155 flow [2025-03-09 01:11:10,832 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 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) [2025-03-09 01:11:10,832 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 01:11:10,832 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] [2025-03-09 01:11:10,832 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-09 01:11:10,832 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2025-03-09 01:11:10,833 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 01:11:10,833 INFO L85 PathProgramCache]: Analyzing trace with hash -966217367, now seen corresponding path program 1 times [2025-03-09 01:11:10,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 01:11:10,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041939037] [2025-03-09 01:11:10,833 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 01:11:10,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 01:11:10,841 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 27 statements into 1 equivalence classes. [2025-03-09 01:11:10,929 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 27 of 27 statements. [2025-03-09 01:11:10,929 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 01:11:10,929 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 01:11:11,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 01:11:11,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 01:11:11,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2041939037] [2025-03-09 01:11:11,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2041939037] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 01:11:11,237 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 01:11:11,237 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-09 01:11:11,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601145018] [2025-03-09 01:11:11,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 01:11:11,237 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-09 01:11:11,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 01:11:11,239 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-09 01:11:11,239 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2025-03-09 01:11:11,239 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 47 [2025-03-09 01:11:11,240 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 43 transitions, 155 flow. Second operand has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 01:11:11,240 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 01:11:11,240 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 47 [2025-03-09 01:11:11,241 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 01:11:11,728 INFO L124 PetriNetUnfolderBase]: 1798/2746 cut-off events. [2025-03-09 01:11:11,729 INFO L125 PetriNetUnfolderBase]: For 1462/1462 co-relation queries the response was YES. [2025-03-09 01:11:11,733 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6714 conditions, 2746 events. 1798/2746 cut-off events. For 1462/1462 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 12496 event pairs, 594 based on Foata normal form. 68/2803 useless extension candidates. Maximal degree in co-relation 6703. Up to 1050 conditions per place. [2025-03-09 01:11:11,741 INFO L140 encePairwiseOnDemand]: 41/47 looper letters, 68 selfloop transitions, 11 changer transitions 1/86 dead transitions. [2025-03-09 01:11:11,741 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 86 transitions, 411 flow [2025-03-09 01:11:11,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-09 01:11:11,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-09 01:11:11,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 142 transitions. [2025-03-09 01:11:11,742 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5035460992907801 [2025-03-09 01:11:11,742 INFO L175 Difference]: Start difference. First operand has 54 places, 43 transitions, 155 flow. Second operand 6 states and 142 transitions. [2025-03-09 01:11:11,742 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 86 transitions, 411 flow [2025-03-09 01:11:11,751 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 86 transitions, 386 flow, removed 4 selfloop flow, removed 4 redundant places. [2025-03-09 01:11:11,752 INFO L231 Difference]: Finished difference. Result has 57 places, 43 transitions, 169 flow [2025-03-09 01:11:11,752 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=133, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=169, PETRI_PLACES=57, PETRI_TRANSITIONS=43} [2025-03-09 01:11:11,753 INFO L279 CegarLoopForPetriNet]: 52 programPoint places, 5 predicate places. [2025-03-09 01:11:11,753 INFO L471 AbstractCegarLoop]: Abstraction has has 57 places, 43 transitions, 169 flow [2025-03-09 01:11:11,753 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 01:11:11,753 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 01:11:11,753 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 01:11:11,754 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-09 01:11:11,754 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2025-03-09 01:11:11,754 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 01:11:11,754 INFO L85 PathProgramCache]: Analyzing trace with hash -743451829, now seen corresponding path program 1 times [2025-03-09 01:11:11,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 01:11:11,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [294621558] [2025-03-09 01:11:11,754 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 01:11:11,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 01:11:11,770 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 33 statements into 1 equivalence classes. [2025-03-09 01:11:12,027 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 33 of 33 statements. [2025-03-09 01:11:12,028 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 01:11:12,028 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 01:11:15,708 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 01:11:15,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 01:11:15,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [294621558] [2025-03-09 01:11:15,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [294621558] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 01:11:15,708 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 01:11:15,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2025-03-09 01:11:15,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581248900] [2025-03-09 01:11:15,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 01:11:15,708 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2025-03-09 01:11:15,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 01:11:15,709 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2025-03-09 01:11:15,709 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2025-03-09 01:11:15,726 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 47 [2025-03-09 01:11:15,727 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 43 transitions, 169 flow. Second operand has 14 states, 14 states have (on average 12.0) internal successors, (168), 14 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 01:11:15,727 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 01:11:15,727 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 47 [2025-03-09 01:11:15,727 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 01:11:16,820 INFO L124 PetriNetUnfolderBase]: 2969/4516 cut-off events. [2025-03-09 01:11:16,820 INFO L125 PetriNetUnfolderBase]: For 2884/2884 co-relation queries the response was YES. [2025-03-09 01:11:16,827 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11170 conditions, 4516 events. 2969/4516 cut-off events. For 2884/2884 co-relation queries the response was YES. Maximal size of possible extension queue 179. Compared 22275 event pairs, 126 based on Foata normal form. 8/4517 useless extension candidates. Maximal degree in co-relation 11158. Up to 2011 conditions per place. [2025-03-09 01:11:16,837 INFO L140 encePairwiseOnDemand]: 34/47 looper letters, 70 selfloop transitions, 5 changer transitions 91/172 dead transitions. [2025-03-09 01:11:16,837 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 172 transitions, 991 flow [2025-03-09 01:11:16,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-03-09 01:11:16,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2025-03-09 01:11:16,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 273 transitions. [2025-03-09 01:11:16,839 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.44680851063829785 [2025-03-09 01:11:16,839 INFO L175 Difference]: Start difference. First operand has 57 places, 43 transitions, 169 flow. Second operand 13 states and 273 transitions. [2025-03-09 01:11:16,839 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 172 transitions, 991 flow [2025-03-09 01:11:16,850 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 172 transitions, 778 flow, removed 20 selfloop flow, removed 8 redundant places. [2025-03-09 01:11:16,852 INFO L231 Difference]: Finished difference. Result has 71 places, 46 transitions, 168 flow [2025-03-09 01:11:16,853 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=113, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=168, PETRI_PLACES=71, PETRI_TRANSITIONS=46} [2025-03-09 01:11:16,853 INFO L279 CegarLoopForPetriNet]: 52 programPoint places, 19 predicate places. [2025-03-09 01:11:16,854 INFO L471 AbstractCegarLoop]: Abstraction has has 71 places, 46 transitions, 168 flow [2025-03-09 01:11:16,854 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 12.0) internal successors, (168), 14 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 01:11:16,854 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 01:11:16,854 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 01:11:16,854 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-09 01:11:16,854 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2025-03-09 01:11:16,855 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 01:11:16,855 INFO L85 PathProgramCache]: Analyzing trace with hash -493738033, now seen corresponding path program 2 times [2025-03-09 01:11:16,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 01:11:16,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529839807] [2025-03-09 01:11:16,855 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-09 01:11:16,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 01:11:16,868 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 33 statements into 1 equivalence classes. [2025-03-09 01:11:16,993 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 33 of 33 statements. [2025-03-09 01:11:16,993 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-09 01:11:16,993 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 01:11:18,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 01:11:18,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 01:11:18,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529839807] [2025-03-09 01:11:18,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1529839807] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 01:11:18,456 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 01:11:18,456 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-03-09 01:11:18,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588775739] [2025-03-09 01:11:18,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 01:11:18,457 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-09 01:11:18,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 01:11:18,457 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-09 01:11:18,457 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2025-03-09 01:11:18,463 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 47 [2025-03-09 01:11:18,463 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 46 transitions, 168 flow. Second operand has 10 states, 10 states have (on average 12.8) internal successors, (128), 10 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 01:11:18,463 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 01:11:18,463 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 47 [2025-03-09 01:11:18,463 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 01:11:19,060 INFO L124 PetriNetUnfolderBase]: 2474/3801 cut-off events. [2025-03-09 01:11:19,061 INFO L125 PetriNetUnfolderBase]: For 2557/2557 co-relation queries the response was YES. [2025-03-09 01:11:19,071 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10514 conditions, 3801 events. 2474/3801 cut-off events. For 2557/2557 co-relation queries the response was YES. Maximal size of possible extension queue 141. Compared 18131 event pairs, 394 based on Foata normal form. 8/3805 useless extension candidates. Maximal degree in co-relation 10496. Up to 2235 conditions per place. [2025-03-09 01:11:19,081 INFO L140 encePairwiseOnDemand]: 40/47 looper letters, 58 selfloop transitions, 6 changer transitions 45/115 dead transitions. [2025-03-09 01:11:19,081 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 115 transitions, 623 flow [2025-03-09 01:11:19,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-09 01:11:19,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-03-09 01:11:19,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 173 transitions. [2025-03-09 01:11:19,082 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4601063829787234 [2025-03-09 01:11:19,082 INFO L175 Difference]: Start difference. First operand has 71 places, 46 transitions, 168 flow. Second operand 8 states and 173 transitions. [2025-03-09 01:11:19,082 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 115 transitions, 623 flow [2025-03-09 01:11:19,088 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 115 transitions, 604 flow, removed 7 selfloop flow, removed 6 redundant places. [2025-03-09 01:11:19,090 INFO L231 Difference]: Finished difference. Result has 69 places, 49 transitions, 196 flow [2025-03-09 01:11:19,090 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=155, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=196, PETRI_PLACES=69, PETRI_TRANSITIONS=49} [2025-03-09 01:11:19,090 INFO L279 CegarLoopForPetriNet]: 52 programPoint places, 17 predicate places. [2025-03-09 01:11:19,090 INFO L471 AbstractCegarLoop]: Abstraction has has 69 places, 49 transitions, 196 flow [2025-03-09 01:11:19,091 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.8) internal successors, (128), 10 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 01:11:19,091 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 01:11:19,091 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 01:11:19,091 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-09 01:11:19,091 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2025-03-09 01:11:19,091 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 01:11:19,091 INFO L85 PathProgramCache]: Analyzing trace with hash 1040376333, now seen corresponding path program 3 times [2025-03-09 01:11:19,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 01:11:19,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540688638] [2025-03-09 01:11:19,092 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-09 01:11:19,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 01:11:19,101 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 33 statements into 1 equivalence classes. [2025-03-09 01:11:19,209 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 33 of 33 statements. [2025-03-09 01:11:19,209 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-03-09 01:11:19,209 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 01:11:19,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 01:11:19,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 01:11:19,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540688638] [2025-03-09 01:11:19,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1540688638] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 01:11:19,433 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 01:11:19,433 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-09 01:11:19,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683191588] [2025-03-09 01:11:19,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 01:11:19,433 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-09 01:11:19,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 01:11:19,433 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-09 01:11:19,435 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-09 01:11:19,441 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 47 [2025-03-09 01:11:19,441 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 49 transitions, 196 flow. Second operand has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 6 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 01:11:19,442 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 01:11:19,442 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 47 [2025-03-09 01:11:19,442 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 01:11:19,896 INFO L124 PetriNetUnfolderBase]: 2298/3531 cut-off events. [2025-03-09 01:11:19,897 INFO L125 PetriNetUnfolderBase]: For 2404/2404 co-relation queries the response was YES. [2025-03-09 01:11:19,906 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9893 conditions, 3531 events. 2298/3531 cut-off events. For 2404/2404 co-relation queries the response was YES. Maximal size of possible extension queue 124. Compared 16599 event pairs, 556 based on Foata normal form. 8/3532 useless extension candidates. Maximal degree in co-relation 9874. Up to 2210 conditions per place. [2025-03-09 01:11:19,912 INFO L140 encePairwiseOnDemand]: 42/47 looper letters, 53 selfloop transitions, 2 changer transitions 36/97 dead transitions. [2025-03-09 01:11:19,912 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 97 transitions, 545 flow [2025-03-09 01:11:19,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-09 01:11:19,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-09 01:11:19,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 132 transitions. [2025-03-09 01:11:19,913 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.46808510638297873 [2025-03-09 01:11:19,913 INFO L175 Difference]: Start difference. First operand has 69 places, 49 transitions, 196 flow. Second operand 6 states and 132 transitions. [2025-03-09 01:11:19,913 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 97 transitions, 545 flow [2025-03-09 01:11:19,916 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 97 transitions, 530 flow, removed 5 selfloop flow, removed 4 redundant places. [2025-03-09 01:11:19,917 INFO L231 Difference]: Finished difference. Result has 70 places, 48 transitions, 191 flow [2025-03-09 01:11:19,917 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=185, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=191, PETRI_PLACES=70, PETRI_TRANSITIONS=48} [2025-03-09 01:11:19,918 INFO L279 CegarLoopForPetriNet]: 52 programPoint places, 18 predicate places. [2025-03-09 01:11:19,918 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 48 transitions, 191 flow [2025-03-09 01:11:19,918 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 6 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 01:11:19,918 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 01:11:19,918 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 01:11:19,918 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-09 01:11:19,918 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2025-03-09 01:11:19,919 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 01:11:19,919 INFO L85 PathProgramCache]: Analyzing trace with hash 1088511547, now seen corresponding path program 4 times [2025-03-09 01:11:19,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 01:11:19,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269435640] [2025-03-09 01:11:19,919 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-09 01:11:19,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 01:11:19,927 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 33 statements into 2 equivalence classes. [2025-03-09 01:11:20,084 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 33 of 33 statements. [2025-03-09 01:11:20,085 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-09 01:11:20,085 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 01:11:22,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 01:11:22,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 01:11:22,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269435640] [2025-03-09 01:11:22,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [269435640] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 01:11:22,329 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 01:11:22,330 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-03-09 01:11:22,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748620866] [2025-03-09 01:11:22,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 01:11:22,330 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-09 01:11:22,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 01:11:22,330 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-09 01:11:22,331 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2025-03-09 01:11:22,338 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 47 [2025-03-09 01:11:22,338 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 48 transitions, 191 flow. Second operand has 13 states, 13 states have (on average 12.153846153846153) internal successors, (158), 13 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 01:11:22,338 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 01:11:22,338 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 47 [2025-03-09 01:11:22,338 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 01:11:23,138 INFO L124 PetriNetUnfolderBase]: 3007/4656 cut-off events. [2025-03-09 01:11:23,139 INFO L125 PetriNetUnfolderBase]: For 3899/3899 co-relation queries the response was YES. [2025-03-09 01:11:23,152 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12912 conditions, 4656 events. 3007/4656 cut-off events. For 3899/3899 co-relation queries the response was YES. Maximal size of possible extension queue 190. Compared 24133 event pairs, 356 based on Foata normal form. 8/4661 useless extension candidates. Maximal degree in co-relation 12892. Up to 1804 conditions per place. [2025-03-09 01:11:23,159 INFO L140 encePairwiseOnDemand]: 35/47 looper letters, 59 selfloop transitions, 11 changer transitions 60/136 dead transitions. [2025-03-09 01:11:23,160 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 136 transitions, 788 flow [2025-03-09 01:11:23,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-09 01:11:23,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-03-09 01:11:23,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 202 transitions. [2025-03-09 01:11:23,161 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.47754137115839246 [2025-03-09 01:11:23,161 INFO L175 Difference]: Start difference. First operand has 70 places, 48 transitions, 191 flow. Second operand 9 states and 202 transitions. [2025-03-09 01:11:23,161 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 136 transitions, 788 flow [2025-03-09 01:11:23,165 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 136 transitions, 759 flow, removed 10 selfloop flow, removed 5 redundant places. [2025-03-09 01:11:23,167 INFO L231 Difference]: Finished difference. Result has 75 places, 54 transitions, 264 flow [2025-03-09 01:11:23,167 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=179, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=264, PETRI_PLACES=75, PETRI_TRANSITIONS=54} [2025-03-09 01:11:23,168 INFO L279 CegarLoopForPetriNet]: 52 programPoint places, 23 predicate places. [2025-03-09 01:11:23,168 INFO L471 AbstractCegarLoop]: Abstraction has has 75 places, 54 transitions, 264 flow [2025-03-09 01:11:23,169 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 12.153846153846153) internal successors, (158), 13 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 01:11:23,169 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 01:11:23,169 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 01:11:23,169 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-03-09 01:11:23,169 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2025-03-09 01:11:23,171 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 01:11:23,171 INFO L85 PathProgramCache]: Analyzing trace with hash 1444182941, now seen corresponding path program 5 times [2025-03-09 01:11:23,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 01:11:23,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397065750] [2025-03-09 01:11:23,171 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-09 01:11:23,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 01:11:23,181 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 33 statements into 1 equivalence classes. [2025-03-09 01:11:23,291 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 33 of 33 statements. [2025-03-09 01:11:23,292 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-09 01:11:23,292 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 01:11:24,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 01:11:24,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 01:11:24,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397065750] [2025-03-09 01:11:24,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [397065750] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 01:11:24,152 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 01:11:24,152 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-03-09 01:11:24,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751175170] [2025-03-09 01:11:24,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 01:11:24,152 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-09 01:11:24,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 01:11:24,153 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-09 01:11:24,153 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2025-03-09 01:11:24,161 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 47 [2025-03-09 01:11:24,162 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 54 transitions, 264 flow. Second operand has 10 states, 10 states have (on average 12.8) internal successors, (128), 10 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 01:11:24,162 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 01:11:24,162 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 47 [2025-03-09 01:11:24,162 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 01:11:25,028 INFO L124 PetriNetUnfolderBase]: 4130/6601 cut-off events. [2025-03-09 01:11:25,028 INFO L125 PetriNetUnfolderBase]: For 8347/8347 co-relation queries the response was YES. [2025-03-09 01:11:25,043 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20550 conditions, 6601 events. 4130/6601 cut-off events. For 8347/8347 co-relation queries the response was YES. Maximal size of possible extension queue 276. Compared 38374 event pairs, 1106 based on Foata normal form. 8/6606 useless extension candidates. Maximal degree in co-relation 20528. Up to 2683 conditions per place. [2025-03-09 01:11:25,050 INFO L140 encePairwiseOnDemand]: 36/47 looper letters, 51 selfloop transitions, 10 changer transitions 75/142 dead transitions. [2025-03-09 01:11:25,050 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 142 transitions, 911 flow [2025-03-09 01:11:25,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-09 01:11:25,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-03-09 01:11:25,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 191 transitions. [2025-03-09 01:11:25,052 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4515366430260047 [2025-03-09 01:11:25,052 INFO L175 Difference]: Start difference. First operand has 75 places, 54 transitions, 264 flow. Second operand 9 states and 191 transitions. [2025-03-09 01:11:25,052 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 142 transitions, 911 flow [2025-03-09 01:11:25,060 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 142 transitions, 875 flow, removed 10 selfloop flow, removed 6 redundant places. [2025-03-09 01:11:25,061 INFO L231 Difference]: Finished difference. Result has 80 places, 54 transitions, 279 flow [2025-03-09 01:11:25,062 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=236, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=279, PETRI_PLACES=80, PETRI_TRANSITIONS=54} [2025-03-09 01:11:25,062 INFO L279 CegarLoopForPetriNet]: 52 programPoint places, 28 predicate places. [2025-03-09 01:11:25,062 INFO L471 AbstractCegarLoop]: Abstraction has has 80 places, 54 transitions, 279 flow [2025-03-09 01:11:25,063 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.8) internal successors, (128), 10 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 01:11:25,064 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 01:11:25,064 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 01:11:25,064 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-03-09 01:11:25,064 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2025-03-09 01:11:25,064 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 01:11:25,064 INFO L85 PathProgramCache]: Analyzing trace with hash -757004621, now seen corresponding path program 6 times [2025-03-09 01:11:25,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 01:11:25,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196122521] [2025-03-09 01:11:25,065 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-03-09 01:11:25,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 01:11:25,077 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 33 statements into 1 equivalence classes. [2025-03-09 01:11:25,172 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) and asserted 33 of 33 statements. [2025-03-09 01:11:25,172 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2025-03-09 01:11:25,172 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 01:11:26,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 01:11:26,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 01:11:26,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196122521] [2025-03-09 01:11:26,151 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [196122521] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 01:11:26,151 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 01:11:26,151 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2025-03-09 01:11:26,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104580068] [2025-03-09 01:11:26,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 01:11:26,151 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-03-09 01:11:26,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 01:11:26,152 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-03-09 01:11:26,152 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2025-03-09 01:11:26,159 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 47 [2025-03-09 01:11:26,160 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 54 transitions, 279 flow. Second operand has 11 states, 11 states have (on average 12.545454545454545) internal successors, (138), 11 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 01:11:26,160 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 01:11:26,160 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 47 [2025-03-09 01:11:26,160 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 01:11:26,956 INFO L124 PetriNetUnfolderBase]: 2191/3537 cut-off events. [2025-03-09 01:11:26,956 INFO L125 PetriNetUnfolderBase]: For 6625/6625 co-relation queries the response was YES. [2025-03-09 01:11:26,962 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12155 conditions, 3537 events. 2191/3537 cut-off events. For 6625/6625 co-relation queries the response was YES. Maximal size of possible extension queue 137. Compared 18233 event pairs, 897 based on Foata normal form. 8/3536 useless extension candidates. Maximal degree in co-relation 12131. Up to 1880 conditions per place. [2025-03-09 01:11:26,967 INFO L140 encePairwiseOnDemand]: 37/47 looper letters, 54 selfloop transitions, 10 changer transitions 51/121 dead transitions. [2025-03-09 01:11:26,967 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 121 transitions, 825 flow [2025-03-09 01:11:26,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-09 01:11:26,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-03-09 01:11:26,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 182 transitions. [2025-03-09 01:11:26,968 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4302600472813239 [2025-03-09 01:11:26,968 INFO L175 Difference]: Start difference. First operand has 80 places, 54 transitions, 279 flow. Second operand 9 states and 182 transitions. [2025-03-09 01:11:26,968 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 121 transitions, 825 flow [2025-03-09 01:11:26,980 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 121 transitions, 743 flow, removed 33 selfloop flow, removed 9 redundant places. [2025-03-09 01:11:26,982 INFO L231 Difference]: Finished difference. Result has 79 places, 56 transitions, 296 flow [2025-03-09 01:11:26,982 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=240, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=296, PETRI_PLACES=79, PETRI_TRANSITIONS=56} [2025-03-09 01:11:26,983 INFO L279 CegarLoopForPetriNet]: 52 programPoint places, 27 predicate places. [2025-03-09 01:11:26,983 INFO L471 AbstractCegarLoop]: Abstraction has has 79 places, 56 transitions, 296 flow [2025-03-09 01:11:26,984 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.545454545454545) internal successors, (138), 11 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 01:11:26,984 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 01:11:26,984 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 01:11:26,984 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-03-09 01:11:26,985 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2025-03-09 01:11:26,985 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 01:11:26,985 INFO L85 PathProgramCache]: Analyzing trace with hash 559384405, now seen corresponding path program 7 times [2025-03-09 01:11:26,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 01:11:26,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535595989] [2025-03-09 01:11:26,985 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-03-09 01:11:26,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 01:11:26,993 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 33 statements into 1 equivalence classes. [2025-03-09 01:11:27,089 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 33 of 33 statements. [2025-03-09 01:11:27,089 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 01:11:27,090 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 01:11:29,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 01:11:29,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 01:11:29,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535595989] [2025-03-09 01:11:29,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1535595989] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 01:11:29,140 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 01:11:29,140 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-03-09 01:11:29,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576449017] [2025-03-09 01:11:29,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 01:11:29,140 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-09 01:11:29,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 01:11:29,140 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-09 01:11:29,140 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2025-03-09 01:11:29,153 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 47 [2025-03-09 01:11:29,153 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 56 transitions, 296 flow. Second operand has 13 states, 13 states have (on average 12.153846153846153) internal successors, (158), 13 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 01:11:29,153 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 01:11:29,153 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 47 [2025-03-09 01:11:29,153 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 01:11:29,808 INFO L124 PetriNetUnfolderBase]: 2065/3363 cut-off events. [2025-03-09 01:11:29,808 INFO L125 PetriNetUnfolderBase]: For 6574/6574 co-relation queries the response was YES. [2025-03-09 01:11:29,815 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11327 conditions, 3363 events. 2065/3363 cut-off events. For 6574/6574 co-relation queries the response was YES. Maximal size of possible extension queue 142. Compared 17303 event pairs, 642 based on Foata normal form. 8/3362 useless extension candidates. Maximal degree in co-relation 11305. Up to 1385 conditions per place. [2025-03-09 01:11:29,819 INFO L140 encePairwiseOnDemand]: 39/47 looper letters, 38 selfloop transitions, 4 changer transitions 75/123 dead transitions. [2025-03-09 01:11:29,819 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 123 transitions, 835 flow [2025-03-09 01:11:29,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-09 01:11:29,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-03-09 01:11:29,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 175 transitions. [2025-03-09 01:11:29,820 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4654255319148936 [2025-03-09 01:11:29,820 INFO L175 Difference]: Start difference. First operand has 79 places, 56 transitions, 296 flow. Second operand 8 states and 175 transitions. [2025-03-09 01:11:29,820 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 123 transitions, 835 flow [2025-03-09 01:11:29,828 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 123 transitions, 793 flow, removed 14 selfloop flow, removed 7 redundant places. [2025-03-09 01:11:29,829 INFO L231 Difference]: Finished difference. Result has 79 places, 45 transitions, 207 flow [2025-03-09 01:11:29,829 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=270, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=207, PETRI_PLACES=79, PETRI_TRANSITIONS=45} [2025-03-09 01:11:29,829 INFO L279 CegarLoopForPetriNet]: 52 programPoint places, 27 predicate places. [2025-03-09 01:11:29,829 INFO L471 AbstractCegarLoop]: Abstraction has has 79 places, 45 transitions, 207 flow [2025-03-09 01:11:29,829 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 12.153846153846153) internal successors, (158), 13 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 01:11:29,829 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 01:11:29,829 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 01:11:29,829 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-03-09 01:11:29,830 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2025-03-09 01:11:29,830 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 01:11:29,830 INFO L85 PathProgramCache]: Analyzing trace with hash -1505278775, now seen corresponding path program 8 times [2025-03-09 01:11:29,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 01:11:29,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1331999477] [2025-03-09 01:11:29,830 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-09 01:11:29,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 01:11:29,836 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 33 statements into 1 equivalence classes. [2025-03-09 01:11:29,905 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 33 of 33 statements. [2025-03-09 01:11:29,906 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-09 01:11:29,906 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 01:11:31,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 01:11:31,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 01:11:31,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1331999477] [2025-03-09 01:11:31,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1331999477] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 01:11:31,518 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 01:11:31,518 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-03-09 01:11:31,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271861962] [2025-03-09 01:11:31,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 01:11:31,518 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-09 01:11:31,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 01:11:31,519 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-09 01:11:31,519 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2025-03-09 01:11:31,524 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 47 [2025-03-09 01:11:31,524 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 45 transitions, 207 flow. Second operand has 9 states, 9 states have (on average 13.11111111111111) internal successors, (118), 9 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 01:11:31,524 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 01:11:31,524 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 47 [2025-03-09 01:11:31,524 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 01:11:31,831 INFO L124 PetriNetUnfolderBase]: 1291/2087 cut-off events. [2025-03-09 01:11:31,832 INFO L125 PetriNetUnfolderBase]: For 2914/2914 co-relation queries the response was YES. [2025-03-09 01:11:31,836 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6641 conditions, 2087 events. 1291/2087 cut-off events. For 2914/2914 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 9572 event pairs, 352 based on Foata normal form. 8/2094 useless extension candidates. Maximal degree in co-relation 6619. Up to 1485 conditions per place. [2025-03-09 01:11:31,839 INFO L140 encePairwiseOnDemand]: 37/47 looper letters, 48 selfloop transitions, 5 changer transitions 16/75 dead transitions. [2025-03-09 01:11:31,839 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 75 transitions, 462 flow [2025-03-09 01:11:31,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-09 01:11:31,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-03-09 01:11:31,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 126 transitions. [2025-03-09 01:11:31,840 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3829787234042553 [2025-03-09 01:11:31,840 INFO L175 Difference]: Start difference. First operand has 79 places, 45 transitions, 207 flow. Second operand 7 states and 126 transitions. [2025-03-09 01:11:31,840 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 75 transitions, 462 flow [2025-03-09 01:11:31,842 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 75 transitions, 411 flow, removed 11 selfloop flow, removed 15 redundant places. [2025-03-09 01:11:31,843 INFO L231 Difference]: Finished difference. Result has 67 places, 47 transitions, 214 flow [2025-03-09 01:11:31,843 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=171, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=214, PETRI_PLACES=67, PETRI_TRANSITIONS=47} [2025-03-09 01:11:31,844 INFO L279 CegarLoopForPetriNet]: 52 programPoint places, 15 predicate places. [2025-03-09 01:11:31,844 INFO L471 AbstractCegarLoop]: Abstraction has has 67 places, 47 transitions, 214 flow [2025-03-09 01:11:31,844 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 13.11111111111111) internal successors, (118), 9 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 01:11:31,844 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 01:11:31,845 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 01:11:31,845 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-03-09 01:11:31,845 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2025-03-09 01:11:31,845 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 01:11:31,845 INFO L85 PathProgramCache]: Analyzing trace with hash 1729297065, now seen corresponding path program 9 times [2025-03-09 01:11:31,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 01:11:31,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722961964] [2025-03-09 01:11:31,845 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-09 01:11:31,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 01:11:31,852 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 33 statements into 1 equivalence classes. [2025-03-09 01:11:31,937 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 33 of 33 statements. [2025-03-09 01:11:31,938 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-03-09 01:11:31,938 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 01:11:33,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 01:11:33,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 01:11:33,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722961964] [2025-03-09 01:11:33,784 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [722961964] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 01:11:33,784 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 01:11:33,784 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-03-09 01:11:33,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833745218] [2025-03-09 01:11:33,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 01:11:33,785 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-09 01:11:33,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 01:11:33,785 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-09 01:11:33,785 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2025-03-09 01:11:33,793 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 47 [2025-03-09 01:11:33,793 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 47 transitions, 214 flow. Second operand has 13 states, 13 states have (on average 12.153846153846153) internal successors, (158), 13 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 01:11:33,793 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 01:11:33,793 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 47 [2025-03-09 01:11:33,794 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 01:11:34,265 INFO L124 PetriNetUnfolderBase]: 1107/1791 cut-off events. [2025-03-09 01:11:34,265 INFO L125 PetriNetUnfolderBase]: For 2828/2828 co-relation queries the response was YES. [2025-03-09 01:11:34,268 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5804 conditions, 1791 events. 1107/1791 cut-off events. For 2828/2828 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 7828 event pairs, 302 based on Foata normal form. 8/1798 useless extension candidates. Maximal degree in co-relation 5792. Up to 1050 conditions per place. [2025-03-09 01:11:34,269 INFO L140 encePairwiseOnDemand]: 39/47 looper letters, 0 selfloop transitions, 0 changer transitions 71/71 dead transitions. [2025-03-09 01:11:34,269 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 71 transitions, 445 flow [2025-03-09 01:11:34,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-09 01:11:34,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-03-09 01:11:34,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 146 transitions. [2025-03-09 01:11:34,270 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.34515366430260047 [2025-03-09 01:11:34,270 INFO L175 Difference]: Start difference. First operand has 67 places, 47 transitions, 214 flow. Second operand 9 states and 146 transitions. [2025-03-09 01:11:34,270 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 71 transitions, 445 flow [2025-03-09 01:11:34,272 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 71 transitions, 429 flow, removed 4 selfloop flow, removed 4 redundant places. [2025-03-09 01:11:34,272 INFO L231 Difference]: Finished difference. Result has 66 places, 0 transitions, 0 flow [2025-03-09 01:11:34,272 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=191, PETRI_DIFFERENCE_MINUEND_PLACES=58, 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=9, PETRI_FLOW=0, PETRI_PLACES=66, PETRI_TRANSITIONS=0} [2025-03-09 01:11:34,272 INFO L279 CegarLoopForPetriNet]: 52 programPoint places, 14 predicate places. [2025-03-09 01:11:34,272 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 0 transitions, 0 flow [2025-03-09 01:11:34,273 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 12.153846153846153) internal successors, (158), 13 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 01:11:34,275 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONMEMORY_LEAK (6 of 7 remaining) [2025-03-09 01:11:34,275 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (5 of 7 remaining) [2025-03-09 01:11:34,275 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (4 of 7 remaining) [2025-03-09 01:11:34,275 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 7 remaining) [2025-03-09 01:11:34,275 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 7 remaining) [2025-03-09 01:11:34,275 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 7 remaining) [2025-03-09 01:11:34,275 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONMEMORY_LEAK (0 of 7 remaining) [2025-03-09 01:11:34,275 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-03-09 01:11:34,275 INFO L422 BasicCegarLoop]: Path program histogram: [9, 1, 1, 1, 1, 1] [2025-03-09 01:11:34,278 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-03-09 01:11:34,279 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-09 01:11:34,282 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.03 01:11:34 BasicIcfg [2025-03-09 01:11:34,282 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-09 01:11:34,282 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-09 01:11:34,282 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-09 01:11:34,283 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-09 01:11:34,283 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 01:11:05" (3/4) ... [2025-03-09 01:11:34,284 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-03-09 01:11:34,286 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure P0 [2025-03-09 01:11:34,286 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure P1 [2025-03-09 01:11:34,286 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure P2 [2025-03-09 01:11:34,289 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 48 nodes and edges [2025-03-09 01:11:34,289 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2025-03-09 01:11:34,289 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2025-03-09 01:11:34,289 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2025-03-09 01:11:34,339 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-09 01:11:34,340 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-03-09 01:11:34,340 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-09 01:11:34,340 INFO L158 Benchmark]: Toolchain (without parser) took 30076.25ms. Allocated memory was 142.6MB in the beginning and 1.4GB in the end (delta: 1.3GB). Free memory was 111.2MB in the beginning and 989.9MB in the end (delta: -878.7MB). Peak memory consumption was 384.0MB. Max. memory is 16.1GB. [2025-03-09 01:11:34,341 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 201.3MB. Free memory is still 124.1MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-09 01:11:34,341 INFO L158 Benchmark]: CACSL2BoogieTranslator took 406.26ms. Allocated memory is still 142.6MB. Free memory was 110.7MB in the beginning and 83.4MB in the end (delta: 27.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-03-09 01:11:34,341 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.56ms. Allocated memory is still 142.6MB. Free memory was 83.4MB in the beginning and 80.1MB in the end (delta: 3.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-09 01:11:34,342 INFO L158 Benchmark]: Boogie Preprocessor took 59.96ms. Allocated memory is still 142.6MB. Free memory was 80.1MB in the beginning and 74.9MB in the end (delta: 5.2MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-09 01:11:34,344 INFO L158 Benchmark]: IcfgBuilder took 757.10ms. Allocated memory is still 142.6MB. Free memory was 74.9MB in the beginning and 53.8MB in the end (delta: 21.1MB). Peak memory consumption was 48.8MB. Max. memory is 16.1GB. [2025-03-09 01:11:34,344 INFO L158 Benchmark]: TraceAbstraction took 28749.63ms. Allocated memory was 142.6MB in the beginning and 1.4GB in the end (delta: 1.3GB). Free memory was 53.0MB in the beginning and 994.0MB in the end (delta: -941.0MB). Peak memory consumption was 326.8MB. Max. memory is 16.1GB. [2025-03-09 01:11:34,344 INFO L158 Benchmark]: Witness Printer took 57.44ms. Allocated memory is still 1.4GB. Free memory was 994.0MB in the beginning and 989.9MB in the end (delta: 4.2MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-09 01:11:34,345 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 201.3MB. Free memory is still 124.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 406.26ms. Allocated memory is still 142.6MB. Free memory was 110.7MB in the beginning and 83.4MB in the end (delta: 27.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.56ms. Allocated memory is still 142.6MB. Free memory was 83.4MB in the beginning and 80.1MB in the end (delta: 3.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 59.96ms. Allocated memory is still 142.6MB. Free memory was 80.1MB in the beginning and 74.9MB in the end (delta: 5.2MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 757.10ms. Allocated memory is still 142.6MB. Free memory was 74.9MB in the beginning and 53.8MB in the end (delta: 21.1MB). Peak memory consumption was 48.8MB. Max. memory is 16.1GB. * TraceAbstraction took 28749.63ms. Allocated memory was 142.6MB in the beginning and 1.4GB in the end (delta: 1.3GB). Free memory was 53.0MB in the beginning and 994.0MB in the end (delta: -941.0MB). Peak memory consumption was 326.8MB. Max. memory is 16.1GB. * Witness Printer took 57.44ms. Allocated memory is still 1.4GB. Free memory was 994.0MB in the beginning and 989.9MB 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: 17]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 866]: 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, 74 locations, 72 edges, 7 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 28.6s, OverallIterations: 14, TraceHistogramMax: 1, PathProgramHistogramMax: 9, EmptinessCheckTime: 0.0s, AutomataDifference: 10.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 951 SdHoareTripleChecker+Valid, 4.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 932 mSDsluCounter, 339 SdHoareTripleChecker+Invalid, 3.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 329 mSDsCounter, 226 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4577 IncrementalHoareTripleChecker+Invalid, 4803 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 226 mSolverCounterUnsat, 10 mSDtfsCounter, 4577 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 154 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 138 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 230 ImplicationChecksByTransitivity, 1.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=296occurred in iteration=11, InterpolantAutomatonStates: 99, 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, 1.4s SatisfiabilityAnalysisTime, 16.0s InterpolantComputationTime, 383 NumberOfCodeBlocks, 383 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 369 ConstructedInterpolants, 0 QuantifiedInterpolants, 3777 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 14 InterpolantComputations, 14 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-03-09 01:11:34,361 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