./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/pthread-wmm/mix050.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 798a7b37 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/pthread-wmm/mix050.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 a3c87384db48703a1f350b065ac4130898667537456cdd449d5c78c22c9ba26d --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-04 09:52:03,187 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-04 09:52:03,230 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2025-03-04 09:52:03,236 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-04 09:52:03,237 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-04 09:52:03,254 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-04 09:52:03,256 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-04 09:52:03,256 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-04 09:52:03,256 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-04 09:52:03,256 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-04 09:52:03,257 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-04 09:52:03,257 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-04 09:52:03,257 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-04 09:52:03,257 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-04 09:52:03,258 INFO L153 SettingsManager]: * Use SBE=true [2025-03-04 09:52:03,258 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-04 09:52:03,258 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-04 09:52:03,258 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-04 09:52:03,258 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-04 09:52:03,258 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-04 09:52:03,258 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-03-04 09:52:03,259 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-03-04 09:52:03,259 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-03-04 09:52:03,259 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-04 09:52:03,259 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-03-04 09:52:03,259 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-04 09:52:03,259 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-04 09:52:03,259 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-04 09:52:03,259 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-04 09:52:03,259 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-04 09:52:03,259 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-04 09:52:03,259 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-04 09:52:03,260 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-04 09:52:03,260 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 09:52:03,260 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-04 09:52:03,260 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-04 09:52:03,260 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-04 09:52:03,260 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-04 09:52:03,260 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-04 09:52:03,260 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-04 09:52:03,261 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-04 09:52:03,261 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-04 09:52:03,261 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 -> a3c87384db48703a1f350b065ac4130898667537456cdd449d5c78c22c9ba26d [2025-03-04 09:52:03,491 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-04 09:52:03,497 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-04 09:52:03,498 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-04 09:52:03,498 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-04 09:52:03,499 INFO L274 PluginConnector]: CDTParser initialized [2025-03-04 09:52:03,499 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/mix050.i [2025-03-04 09:52:04,579 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9b294fee5/81b6e177665341aa9c5b27b7e69ef6b1/FLAG246aa36b4 [2025-03-04 09:52:04,910 INFO L384 CDTParser]: Found 1 translation units. [2025-03-04 09:52:04,911 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix050.i [2025-03-04 09:52:04,927 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9b294fee5/81b6e177665341aa9c5b27b7e69ef6b1/FLAG246aa36b4 [2025-03-04 09:52:04,942 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9b294fee5/81b6e177665341aa9c5b27b7e69ef6b1 [2025-03-04 09:52:04,945 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-04 09:52:04,946 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-04 09:52:04,948 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-04 09:52:04,948 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-04 09:52:04,951 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-04 09:52:04,952 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 09:52:04" (1/1) ... [2025-03-04 09:52:04,953 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f596780 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:52:04, skipping insertion in model container [2025-03-04 09:52:04,953 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 09:52:04" (1/1) ... [2025-03-04 09:52:04,979 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 09:52:05,277 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 09:52:05,289 INFO L200 MainTranslator]: Completed pre-run [2025-03-04 09:52:05,337 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 09:52:05,361 INFO L204 MainTranslator]: Completed translation [2025-03-04 09:52:05,361 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:52:05 WrapperNode [2025-03-04 09:52:05,361 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-04 09:52:05,362 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-04 09:52:05,362 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-04 09:52:05,362 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-04 09:52:05,367 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:52:05" (1/1) ... [2025-03-04 09:52:05,376 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:52:05" (1/1) ... [2025-03-04 09:52:05,393 INFO L138 Inliner]: procedures = 176, calls = 52, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 132 [2025-03-04 09:52:05,394 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-04 09:52:05,394 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-04 09:52:05,394 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-04 09:52:05,394 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-04 09:52:05,401 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:52:05" (1/1) ... [2025-03-04 09:52:05,401 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:52:05" (1/1) ... [2025-03-04 09:52:05,404 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:52:05" (1/1) ... [2025-03-04 09:52:05,420 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2025-03-04 09:52:05,421 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:52:05" (1/1) ... [2025-03-04 09:52:05,421 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:52:05" (1/1) ... [2025-03-04 09:52:05,428 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:52:05" (1/1) ... [2025-03-04 09:52:05,429 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:52:05" (1/1) ... [2025-03-04 09:52:05,430 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:52:05" (1/1) ... [2025-03-04 09:52:05,431 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:52:05" (1/1) ... [2025-03-04 09:52:05,437 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-04 09:52:05,438 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-04 09:52:05,439 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-04 09:52:05,439 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-04 09:52:05,440 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:52:05" (1/1) ... [2025-03-04 09:52:05,443 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 09:52:05,452 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 09:52:05,464 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-04 09:52:05,466 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-04 09:52:05,485 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-03-04 09:52:05,485 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-04 09:52:05,485 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2025-03-04 09:52:05,485 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2025-03-04 09:52:05,486 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2025-03-04 09:52:05,486 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2025-03-04 09:52:05,486 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2025-03-04 09:52:05,486 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2025-03-04 09:52:05,486 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2025-03-04 09:52:05,486 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2025-03-04 09:52:05,486 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-04 09:52:05,486 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-03-04 09:52:05,487 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-04 09:52:05,487 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-04 09:52:05,488 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-04 09:52:05,592 INFO L256 CfgBuilder]: Building ICFG [2025-03-04 09:52:05,593 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-04 09:52:05,870 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-04 09:52:05,870 INFO L307 CfgBuilder]: Performing block encoding [2025-03-04 09:52:06,020 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-04 09:52:06,021 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-04 09:52:06,022 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 09:52:06 BoogieIcfgContainer [2025-03-04 09:52:06,022 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-04 09:52:06,024 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-04 09:52:06,024 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-04 09:52:06,027 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-04 09:52:06,027 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.03 09:52:04" (1/3) ... [2025-03-04 09:52:06,028 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16a768b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 09:52:06, skipping insertion in model container [2025-03-04 09:52:06,030 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:52:05" (2/3) ... [2025-03-04 09:52:06,030 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16a768b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 09:52:06, skipping insertion in model container [2025-03-04 09:52:06,030 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 09:52:06" (3/3) ... [2025-03-04 09:52:06,031 INFO L128 eAbstractionObserver]: Analyzing ICFG mix050.i [2025-03-04 09:52:06,042 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-04 09:52:06,044 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG mix050.i that has 5 procedures, 52 locations, 1 initial locations, 0 loop locations, and 3 error locations. [2025-03-04 09:52:06,045 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-04 09:52:06,096 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-03-04 09:52:06,128 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 64 places, 53 transitions, 122 flow [2025-03-04 09:52:06,186 INFO L124 PetriNetUnfolderBase]: 2/49 cut-off events. [2025-03-04 09:52:06,188 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-04 09:52:06,192 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62 conditions, 49 events. 2/49 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 98 event pairs, 0 based on Foata normal form. 0/44 useless extension candidates. Maximal degree in co-relation 53. Up to 2 conditions per place. [2025-03-04 09:52:06,192 INFO L82 GeneralOperation]: Start removeDead. Operand has 64 places, 53 transitions, 122 flow [2025-03-04 09:52:06,194 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 60 places, 49 transitions, 110 flow [2025-03-04 09:52:06,201 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-04 09:52:06,208 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;@5ce172d1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-04 09:52:06,209 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2025-03-04 09:52:06,211 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-04 09:52:06,212 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2025-03-04 09:52:06,212 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-04 09:52:06,212 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:52:06,212 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2025-03-04 09:52:06,212 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2025-03-04 09:52:06,217 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:52:06,217 INFO L85 PathProgramCache]: Analyzing trace with hash 13764518, now seen corresponding path program 1 times [2025-03-04 09:52:06,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 09:52:06,225 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737365045] [2025-03-04 09:52:06,226 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:52:06,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 09:52:06,283 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-03-04 09:52:06,309 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-03-04 09:52:06,311 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:52:06,311 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:52:06,524 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:52:06,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 09:52:06,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737365045] [2025-03-04 09:52:06,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [737365045] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:52:06,527 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:52:06,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-03-04 09:52:06,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650501212] [2025-03-04 09:52:06,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:52:06,533 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 09:52:06,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 09:52:06,552 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 09:52:06,552 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 09:52:06,553 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 53 [2025-03-04 09:52:06,555 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 49 transitions, 110 flow. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 09:52:06,555 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:52:06,555 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 53 [2025-03-04 09:52:06,556 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:52:10,500 INFO L124 PetriNetUnfolderBase]: 43115/57396 cut-off events. [2025-03-04 09:52:10,500 INFO L125 PetriNetUnfolderBase]: For 249/249 co-relation queries the response was YES. [2025-03-04 09:52:10,583 INFO L83 FinitePrefix]: Finished finitePrefix Result has 114512 conditions, 57396 events. 43115/57396 cut-off events. For 249/249 co-relation queries the response was YES. Maximal size of possible extension queue 1709. Compared 351806 event pairs, 5315 based on Foata normal form. 2592/59939 useless extension candidates. Maximal degree in co-relation 114500. Up to 49031 conditions per place. [2025-03-04 09:52:10,812 INFO L140 encePairwiseOnDemand]: 48/53 looper letters, 63 selfloop transitions, 2 changer transitions 2/75 dead transitions. [2025-03-04 09:52:10,812 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 75 transitions, 305 flow [2025-03-04 09:52:10,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 09:52:10,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-04 09:52:10,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 108 transitions. [2025-03-04 09:52:10,824 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6792452830188679 [2025-03-04 09:52:10,825 INFO L175 Difference]: Start difference. First operand has 60 places, 49 transitions, 110 flow. Second operand 3 states and 108 transitions. [2025-03-04 09:52:10,826 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 75 transitions, 305 flow [2025-03-04 09:52:10,832 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 75 transitions, 298 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-03-04 09:52:10,836 INFO L231 Difference]: Finished difference. Result has 56 places, 44 transitions, 100 flow [2025-03-04 09:52:10,838 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=100, PETRI_PLACES=56, PETRI_TRANSITIONS=44} [2025-03-04 09:52:10,841 INFO L279 CegarLoopForPetriNet]: 60 programPoint places, -4 predicate places. [2025-03-04 09:52:10,842 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 44 transitions, 100 flow [2025-03-04 09:52:10,842 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 09:52:10,843 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:52:10,843 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 09:52:10,843 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-04 09:52:10,843 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2025-03-04 09:52:10,844 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:52:10,844 INFO L85 PathProgramCache]: Analyzing trace with hash 1065695753, now seen corresponding path program 1 times [2025-03-04 09:52:10,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 09:52:10,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421436443] [2025-03-04 09:52:10,844 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:52:10,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 09:52:10,863 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-03-04 09:52:10,879 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-03-04 09:52:10,879 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:52:10,879 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:52:10,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:52:10,955 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 09:52:10,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1421436443] [2025-03-04 09:52:10,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1421436443] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:52:10,955 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:52:10,955 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-03-04 09:52:10,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128669828] [2025-03-04 09:52:10,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:52:10,956 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 09:52:10,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 09:52:10,958 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 09:52:10,958 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 09:52:10,958 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 53 [2025-03-04 09:52:10,958 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 44 transitions, 100 flow. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 09:52:10,958 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:52:10,958 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 53 [2025-03-04 09:52:10,959 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:52:13,978 INFO L124 PetriNetUnfolderBase]: 38795/54707 cut-off events. [2025-03-04 09:52:13,978 INFO L125 PetriNetUnfolderBase]: For 2030/2030 co-relation queries the response was YES. [2025-03-04 09:52:14,061 INFO L83 FinitePrefix]: Finished finitePrefix Result has 108235 conditions, 54707 events. 38795/54707 cut-off events. For 2030/2030 co-relation queries the response was YES. Maximal size of possible extension queue 1733. Compared 357857 event pairs, 38795 based on Foata normal form. 1296/55712 useless extension candidates. Maximal degree in co-relation 108225. Up to 50976 conditions per place. [2025-03-04 09:52:14,189 INFO L140 encePairwiseOnDemand]: 51/53 looper letters, 34 selfloop transitions, 1 changer transitions 1/43 dead transitions. [2025-03-04 09:52:14,189 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 43 transitions, 170 flow [2025-03-04 09:52:14,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 09:52:14,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-04 09:52:14,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 70 transitions. [2025-03-04 09:52:14,191 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.44025157232704404 [2025-03-04 09:52:14,191 INFO L175 Difference]: Start difference. First operand has 56 places, 44 transitions, 100 flow. Second operand 3 states and 70 transitions. [2025-03-04 09:52:14,191 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 43 transitions, 170 flow [2025-03-04 09:52:14,192 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 43 transitions, 166 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-04 09:52:14,192 INFO L231 Difference]: Finished difference. Result has 54 places, 42 transitions, 94 flow [2025-03-04 09:52:14,192 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=94, PETRI_PLACES=54, PETRI_TRANSITIONS=42} [2025-03-04 09:52:14,193 INFO L279 CegarLoopForPetriNet]: 60 programPoint places, -6 predicate places. [2025-03-04 09:52:14,193 INFO L471 AbstractCegarLoop]: Abstraction has has 54 places, 42 transitions, 94 flow [2025-03-04 09:52:14,193 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 09:52:14,193 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:52:14,193 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 09:52:14,193 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-04 09:52:14,193 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2025-03-04 09:52:14,194 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:52:14,194 INFO L85 PathProgramCache]: Analyzing trace with hash 1065696403, now seen corresponding path program 1 times [2025-03-04 09:52:14,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 09:52:14,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [806387492] [2025-03-04 09:52:14,194 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:52:14,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 09:52:14,201 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-03-04 09:52:14,215 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-03-04 09:52:14,216 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:52:14,216 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:52:14,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:52:14,377 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 09:52:14,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [806387492] [2025-03-04 09:52:14,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [806387492] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:52:14,377 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:52:14,377 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 09:52:14,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313892961] [2025-03-04 09:52:14,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:52:14,377 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 09:52:14,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 09:52:14,378 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 09:52:14,378 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-04 09:52:14,378 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 53 [2025-03-04 09:52:14,378 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 42 transitions, 94 flow. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 09:52:14,378 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:52:14,378 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 53 [2025-03-04 09:52:14,378 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:52:17,036 INFO L124 PetriNetUnfolderBase]: 31611/45419 cut-off events. [2025-03-04 09:52:17,036 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-04 09:52:17,128 INFO L83 FinitePrefix]: Finished finitePrefix Result has 88197 conditions, 45419 events. 31611/45419 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 1508. Compared 304745 event pairs, 3739 based on Foata normal form. 1296/46668 useless extension candidates. Maximal degree in co-relation 88191. Up to 26017 conditions per place. [2025-03-04 09:52:17,257 INFO L140 encePairwiseOnDemand]: 46/53 looper letters, 72 selfloop transitions, 6 changer transitions 1/86 dead transitions. [2025-03-04 09:52:17,257 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 86 transitions, 346 flow [2025-03-04 09:52:17,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 09:52:17,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-04 09:52:17,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 129 transitions. [2025-03-04 09:52:17,259 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6084905660377359 [2025-03-04 09:52:17,259 INFO L175 Difference]: Start difference. First operand has 54 places, 42 transitions, 94 flow. Second operand 4 states and 129 transitions. [2025-03-04 09:52:17,259 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 86 transitions, 346 flow [2025-03-04 09:52:17,259 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 86 transitions, 345 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-04 09:52:17,261 INFO L231 Difference]: Finished difference. Result has 57 places, 46 transitions, 135 flow [2025-03-04 09:52:17,261 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=93, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=135, PETRI_PLACES=57, PETRI_TRANSITIONS=46} [2025-03-04 09:52:17,261 INFO L279 CegarLoopForPetriNet]: 60 programPoint places, -3 predicate places. [2025-03-04 09:52:17,261 INFO L471 AbstractCegarLoop]: Abstraction has has 57 places, 46 transitions, 135 flow [2025-03-04 09:52:17,262 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 09:52:17,262 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:52:17,262 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 09:52:17,262 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-04 09:52:17,262 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2025-03-04 09:52:17,262 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:52:17,263 INFO L85 PathProgramCache]: Analyzing trace with hash 1331978505, now seen corresponding path program 1 times [2025-03-04 09:52:17,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 09:52:17,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1488763709] [2025-03-04 09:52:17,263 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:52:17,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 09:52:17,276 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-03-04 09:52:17,319 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-03-04 09:52:17,320 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:52:17,320 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:52:17,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:52:17,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 09:52:17,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1488763709] [2025-03-04 09:52:17,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1488763709] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:52:17,501 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:52:17,501 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-04 09:52:17,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880328325] [2025-03-04 09:52:17,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:52:17,502 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-04 09:52:17,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 09:52:17,502 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-04 09:52:17,502 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-04 09:52:17,503 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 53 [2025-03-04 09:52:17,503 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 46 transitions, 135 flow. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 09:52:17,503 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:52:17,503 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 53 [2025-03-04 09:52:17,503 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:52:19,358 INFO L124 PetriNetUnfolderBase]: 20347/29291 cut-off events. [2025-03-04 09:52:19,358 INFO L125 PetriNetUnfolderBase]: For 5498/5498 co-relation queries the response was YES. [2025-03-04 09:52:19,428 INFO L83 FinitePrefix]: Finished finitePrefix Result has 65164 conditions, 29291 events. 20347/29291 cut-off events. For 5498/5498 co-relation queries the response was YES. Maximal size of possible extension queue 807. Compared 182262 event pairs, 2151 based on Foata normal form. 1040/30284 useless extension candidates. Maximal degree in co-relation 65155. Up to 12193 conditions per place. [2025-03-04 09:52:19,498 INFO L140 encePairwiseOnDemand]: 46/53 looper letters, 93 selfloop transitions, 10 changer transitions 1/111 dead transitions. [2025-03-04 09:52:19,498 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 111 transitions, 502 flow [2025-03-04 09:52:19,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-04 09:52:19,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-03-04 09:52:19,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 166 transitions. [2025-03-04 09:52:19,499 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6264150943396226 [2025-03-04 09:52:19,500 INFO L175 Difference]: Start difference. First operand has 57 places, 46 transitions, 135 flow. Second operand 5 states and 166 transitions. [2025-03-04 09:52:19,500 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 111 transitions, 502 flow [2025-03-04 09:52:19,509 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 111 transitions, 491 flow, removed 1 selfloop flow, removed 2 redundant places. [2025-03-04 09:52:19,511 INFO L231 Difference]: Finished difference. Result has 61 places, 50 transitions, 187 flow [2025-03-04 09:52:19,511 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=126, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=187, PETRI_PLACES=61, PETRI_TRANSITIONS=50} [2025-03-04 09:52:19,512 INFO L279 CegarLoopForPetriNet]: 60 programPoint places, 1 predicate places. [2025-03-04 09:52:19,512 INFO L471 AbstractCegarLoop]: Abstraction has has 61 places, 50 transitions, 187 flow [2025-03-04 09:52:19,513 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 09:52:19,513 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:52:19,513 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 09:52:19,513 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-04 09:52:19,513 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2025-03-04 09:52:19,515 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:52:19,515 INFO L85 PathProgramCache]: Analyzing trace with hash 1179987364, now seen corresponding path program 1 times [2025-03-04 09:52:19,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 09:52:19,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426535382] [2025-03-04 09:52:19,515 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:52:19,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 09:52:19,526 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 27 statements into 1 equivalence classes. [2025-03-04 09:52:19,538 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 27 of 27 statements. [2025-03-04 09:52:19,539 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:52:19,539 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:52:19,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:52:19,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 09:52:19,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [426535382] [2025-03-04 09:52:19,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [426535382] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:52:19,755 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:52:19,755 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-03-04 09:52:19,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022682697] [2025-03-04 09:52:19,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:52:19,755 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-04 09:52:19,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 09:52:19,756 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-04 09:52:19,756 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2025-03-04 09:52:19,758 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 53 [2025-03-04 09:52:19,758 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 50 transitions, 187 flow. Second operand has 7 states, 7 states have (on average 14.285714285714286) internal successors, (100), 7 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 09:52:19,758 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:52:19,758 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 53 [2025-03-04 09:52:19,758 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:52:23,097 INFO L124 PetriNetUnfolderBase]: 31861/44501 cut-off events. [2025-03-04 09:52:23,098 INFO L125 PetriNetUnfolderBase]: For 23746/23746 co-relation queries the response was YES. [2025-03-04 09:52:23,223 INFO L83 FinitePrefix]: Finished finitePrefix Result has 108326 conditions, 44501 events. 31861/44501 cut-off events. For 23746/23746 co-relation queries the response was YES. Maximal size of possible extension queue 1203. Compared 275755 event pairs, 5865 based on Foata normal form. 0/43747 useless extension candidates. Maximal degree in co-relation 108315. Up to 20596 conditions per place. [2025-03-04 09:52:23,332 INFO L140 encePairwiseOnDemand]: 47/53 looper letters, 92 selfloop transitions, 2 changer transitions 108/208 dead transitions. [2025-03-04 09:52:23,332 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 208 transitions, 1123 flow [2025-03-04 09:52:23,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-04 09:52:23,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-03-04 09:52:23,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 280 transitions. [2025-03-04 09:52:23,334 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5870020964360587 [2025-03-04 09:52:23,334 INFO L175 Difference]: Start difference. First operand has 61 places, 50 transitions, 187 flow. Second operand 9 states and 280 transitions. [2025-03-04 09:52:23,334 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 208 transitions, 1123 flow [2025-03-04 09:52:23,430 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 208 transitions, 1051 flow, removed 14 selfloop flow, removed 4 redundant places. [2025-03-04 09:52:23,431 INFO L231 Difference]: Finished difference. Result has 70 places, 50 transitions, 177 flow [2025-03-04 09:52:23,431 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=160, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=177, PETRI_PLACES=70, PETRI_TRANSITIONS=50} [2025-03-04 09:52:23,432 INFO L279 CegarLoopForPetriNet]: 60 programPoint places, 10 predicate places. [2025-03-04 09:52:23,432 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 50 transitions, 177 flow [2025-03-04 09:52:23,432 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.285714285714286) internal successors, (100), 7 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 09:52:23,432 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:52:23,432 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 09:52:23,432 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-04 09:52:23,432 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2025-03-04 09:52:23,433 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:52:23,433 INFO L85 PathProgramCache]: Analyzing trace with hash 408937740, now seen corresponding path program 2 times [2025-03-04 09:52:23,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 09:52:23,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326876689] [2025-03-04 09:52:23,433 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 09:52:23,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 09:52:23,444 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 27 statements into 1 equivalence classes. [2025-03-04 09:52:23,508 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 27 of 27 statements. [2025-03-04 09:52:23,508 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-04 09:52:23,508 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:52:23,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:52:23,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 09:52:23,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [326876689] [2025-03-04 09:52:23,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [326876689] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:52:23,897 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:52:23,897 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-04 09:52:23,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344295455] [2025-03-04 09:52:23,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:52:23,897 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 09:52:23,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 09:52:23,898 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 09:52:23,898 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2025-03-04 09:52:23,898 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 53 [2025-03-04 09:52:23,898 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 50 transitions, 177 flow. Second operand has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 09:52:23,899 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:52:23,899 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 53 [2025-03-04 09:52:23,899 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:52:25,327 INFO L124 PetriNetUnfolderBase]: 18549/25957 cut-off events. [2025-03-04 09:52:25,327 INFO L125 PetriNetUnfolderBase]: For 11990/11992 co-relation queries the response was YES. [2025-03-04 09:52:25,373 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63225 conditions, 25957 events. 18549/25957 cut-off events. For 11990/11992 co-relation queries the response was YES. Maximal size of possible extension queue 696. Compared 147646 event pairs, 2573 based on Foata normal form. 896/26800 useless extension candidates. Maximal degree in co-relation 63211. Up to 7844 conditions per place. [2025-03-04 09:52:25,414 INFO L140 encePairwiseOnDemand]: 46/53 looper letters, 111 selfloop transitions, 14 changer transitions 5/136 dead transitions. [2025-03-04 09:52:25,414 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 136 transitions, 690 flow [2025-03-04 09:52:25,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 09:52:25,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-04 09:52:25,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 201 transitions. [2025-03-04 09:52:25,415 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6320754716981132 [2025-03-04 09:52:25,415 INFO L175 Difference]: Start difference. First operand has 70 places, 50 transitions, 177 flow. Second operand 6 states and 201 transitions. [2025-03-04 09:52:25,415 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 136 transitions, 690 flow [2025-03-04 09:52:25,426 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 136 transitions, 675 flow, removed 5 selfloop flow, removed 4 redundant places. [2025-03-04 09:52:25,427 INFO L231 Difference]: Finished difference. Result has 67 places, 54 transitions, 247 flow [2025-03-04 09:52:25,428 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=170, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=247, PETRI_PLACES=67, PETRI_TRANSITIONS=54} [2025-03-04 09:52:25,428 INFO L279 CegarLoopForPetriNet]: 60 programPoint places, 7 predicate places. [2025-03-04 09:52:25,428 INFO L471 AbstractCegarLoop]: Abstraction has has 67 places, 54 transitions, 247 flow [2025-03-04 09:52:25,428 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 09:52:25,428 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:52:25,429 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] [2025-03-04 09:52:25,429 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-04 09:52:25,429 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2025-03-04 09:52:25,429 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:52:25,429 INFO L85 PathProgramCache]: Analyzing trace with hash -602761441, now seen corresponding path program 1 times [2025-03-04 09:52:25,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 09:52:25,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197154459] [2025-03-04 09:52:25,429 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:52:25,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 09:52:25,436 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 32 statements into 1 equivalence classes. [2025-03-04 09:52:25,445 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 32 of 32 statements. [2025-03-04 09:52:25,446 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:52:25,446 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:52:25,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:52:25,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 09:52:25,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197154459] [2025-03-04 09:52:25,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [197154459] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:52:25,611 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:52:25,611 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-04 09:52:25,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988394344] [2025-03-04 09:52:25,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:52:25,611 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 09:52:25,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 09:52:25,612 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 09:52:25,612 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-04 09:52:25,613 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 53 [2025-03-04 09:52:25,613 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 54 transitions, 247 flow. Second operand has 6 states, 6 states have (on average 15.5) internal successors, (93), 6 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 09:52:25,613 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:52:25,613 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 53 [2025-03-04 09:52:25,613 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:52:28,387 INFO L124 PetriNetUnfolderBase]: 26165/36573 cut-off events. [2025-03-04 09:52:28,388 INFO L125 PetriNetUnfolderBase]: For 36379/36381 co-relation queries the response was YES. [2025-03-04 09:52:28,466 INFO L83 FinitePrefix]: Finished finitePrefix Result has 99053 conditions, 36573 events. 26165/36573 cut-off events. For 36379/36381 co-relation queries the response was YES. Maximal size of possible extension queue 1000. Compared 216102 event pairs, 3199 based on Foata normal form. 152/36679 useless extension candidates. Maximal degree in co-relation 99039. Up to 18870 conditions per place. [2025-03-04 09:52:28,525 INFO L140 encePairwiseOnDemand]: 48/53 looper letters, 84 selfloop transitions, 2 changer transitions 66/158 dead transitions. [2025-03-04 09:52:28,525 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 158 transitions, 1023 flow [2025-03-04 09:52:28,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 09:52:28,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-04 09:52:28,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 187 transitions. [2025-03-04 09:52:28,526 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5880503144654088 [2025-03-04 09:52:28,526 INFO L175 Difference]: Start difference. First operand has 67 places, 54 transitions, 247 flow. Second operand 6 states and 187 transitions. [2025-03-04 09:52:28,526 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 158 transitions, 1023 flow [2025-03-04 09:52:28,996 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 158 transitions, 907 flow, removed 25 selfloop flow, removed 5 redundant places. [2025-03-04 09:52:28,997 INFO L231 Difference]: Finished difference. Result has 71 places, 55 transitions, 221 flow [2025-03-04 09:52:28,997 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=204, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=221, PETRI_PLACES=71, PETRI_TRANSITIONS=55} [2025-03-04 09:52:28,998 INFO L279 CegarLoopForPetriNet]: 60 programPoint places, 11 predicate places. [2025-03-04 09:52:28,998 INFO L471 AbstractCegarLoop]: Abstraction has has 71 places, 55 transitions, 221 flow [2025-03-04 09:52:28,998 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.5) internal successors, (93), 6 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 09:52:28,998 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:52:28,998 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] [2025-03-04 09:52:28,998 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-04 09:52:28,998 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2025-03-04 09:52:28,999 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:52:28,999 INFO L85 PathProgramCache]: Analyzing trace with hash 2005947053, now seen corresponding path program 2 times [2025-03-04 09:52:28,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 09:52:28,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85702490] [2025-03-04 09:52:28,999 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 09:52:28,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 09:52:29,007 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 32 statements into 1 equivalence classes. [2025-03-04 09:52:29,040 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 32 of 32 statements. [2025-03-04 09:52:29,041 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-04 09:52:29,041 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:52:29,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:52:29,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 09:52:29,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [85702490] [2025-03-04 09:52:29,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [85702490] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:52:29,227 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:52:29,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-04 09:52:29,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949474686] [2025-03-04 09:52:29,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:52:29,227 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-04 09:52:29,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 09:52:29,228 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-04 09:52:29,229 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2025-03-04 09:52:29,229 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 53 [2025-03-04 09:52:29,229 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 55 transitions, 221 flow. Second operand has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 7 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 09:52:29,230 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:52:29,230 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 53 [2025-03-04 09:52:29,230 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:52:31,169 INFO L124 PetriNetUnfolderBase]: 22085/30509 cut-off events. [2025-03-04 09:52:31,169 INFO L125 PetriNetUnfolderBase]: For 20113/20128 co-relation queries the response was YES. [2025-03-04 09:52:31,291 INFO L83 FinitePrefix]: Finished finitePrefix Result has 78483 conditions, 30509 events. 22085/30509 cut-off events. For 20113/20128 co-relation queries the response was YES. Maximal size of possible extension queue 1001. Compared 176975 event pairs, 3089 based on Foata normal form. 488/30955 useless extension candidates. Maximal degree in co-relation 78467. Up to 10180 conditions per place. [2025-03-04 09:52:31,331 INFO L140 encePairwiseOnDemand]: 46/53 looper letters, 91 selfloop transitions, 18 changer transitions 13/128 dead transitions. [2025-03-04 09:52:31,331 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 128 transitions, 671 flow [2025-03-04 09:52:31,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-04 09:52:31,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-03-04 09:52:31,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 202 transitions. [2025-03-04 09:52:31,338 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5444743935309974 [2025-03-04 09:52:31,338 INFO L175 Difference]: Start difference. First operand has 71 places, 55 transitions, 221 flow. Second operand 7 states and 202 transitions. [2025-03-04 09:52:31,338 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 128 transitions, 671 flow [2025-03-04 09:52:32,035 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 128 transitions, 663 flow, removed 2 selfloop flow, removed 3 redundant places. [2025-03-04 09:52:32,037 INFO L231 Difference]: Finished difference. Result has 74 places, 53 transitions, 257 flow [2025-03-04 09:52:32,037 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=216, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=257, PETRI_PLACES=74, PETRI_TRANSITIONS=53} [2025-03-04 09:52:32,037 INFO L279 CegarLoopForPetriNet]: 60 programPoint places, 14 predicate places. [2025-03-04 09:52:32,037 INFO L471 AbstractCegarLoop]: Abstraction has has 74 places, 53 transitions, 257 flow [2025-03-04 09:52:32,037 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 7 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 09:52:32,038 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:52:32,038 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, 1, 1, 1, 1] [2025-03-04 09:52:32,038 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-04 09:52:32,038 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2025-03-04 09:52:32,038 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:52:32,038 INFO L85 PathProgramCache]: Analyzing trace with hash 1169047980, now seen corresponding path program 1 times [2025-03-04 09:52:32,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 09:52:32,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812195682] [2025-03-04 09:52:32,038 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:52:32,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 09:52:32,048 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 37 statements into 1 equivalence classes. [2025-03-04 09:52:32,060 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 37 of 37 statements. [2025-03-04 09:52:32,060 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:52:32,060 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:52:32,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:52:32,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 09:52:32,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812195682] [2025-03-04 09:52:32,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [812195682] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:52:32,293 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:52:32,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-03-04 09:52:32,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583368135] [2025-03-04 09:52:32,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:52:32,293 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-04 09:52:32,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 09:52:32,293 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-04 09:52:32,293 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2025-03-04 09:52:32,297 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 53 [2025-03-04 09:52:32,297 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 53 transitions, 257 flow. Second operand has 7 states, 7 states have (on average 15.428571428571429) internal successors, (108), 7 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 09:52:32,297 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:52:32,297 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 53 [2025-03-04 09:52:32,297 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:52:33,496 INFO L124 PetriNetUnfolderBase]: 11529/16333 cut-off events. [2025-03-04 09:52:33,496 INFO L125 PetriNetUnfolderBase]: For 16044/16059 co-relation queries the response was YES. [2025-03-04 09:52:33,547 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44442 conditions, 16333 events. 11529/16333 cut-off events. For 16044/16059 co-relation queries the response was YES. Maximal size of possible extension queue 625. Compared 91771 event pairs, 1765 based on Foata normal form. 16/16294 useless extension candidates. Maximal degree in co-relation 44425. Up to 7968 conditions per place. [2025-03-04 09:52:33,571 INFO L140 encePairwiseOnDemand]: 48/53 looper letters, 62 selfloop transitions, 1 changer transitions 48/117 dead transitions. [2025-03-04 09:52:33,572 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 117 transitions, 803 flow [2025-03-04 09:52:33,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 09:52:33,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-04 09:52:33,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 148 transitions. [2025-03-04 09:52:33,573 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.46540880503144655 [2025-03-04 09:52:33,573 INFO L175 Difference]: Start difference. First operand has 74 places, 53 transitions, 257 flow. Second operand 6 states and 148 transitions. [2025-03-04 09:52:33,573 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 117 transitions, 803 flow [2025-03-04 09:52:33,727 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 117 transitions, 570 flow, removed 38 selfloop flow, removed 12 redundant places. [2025-03-04 09:52:33,728 INFO L231 Difference]: Finished difference. Result has 69 places, 53 transitions, 168 flow [2025-03-04 09:52:33,728 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=157, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=168, PETRI_PLACES=69, PETRI_TRANSITIONS=53} [2025-03-04 09:52:33,728 INFO L279 CegarLoopForPetriNet]: 60 programPoint places, 9 predicate places. [2025-03-04 09:52:33,729 INFO L471 AbstractCegarLoop]: Abstraction has has 69 places, 53 transitions, 168 flow [2025-03-04 09:52:33,729 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.428571428571429) internal successors, (108), 7 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 09:52:33,729 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:52:33,729 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, 1, 1, 1, 1] [2025-03-04 09:52:33,729 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-03-04 09:52:33,729 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2025-03-04 09:52:33,730 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:52:33,730 INFO L85 PathProgramCache]: Analyzing trace with hash 1181610092, now seen corresponding path program 2 times [2025-03-04 09:52:33,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 09:52:33,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624666706] [2025-03-04 09:52:33,730 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 09:52:33,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 09:52:33,739 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 37 statements into 1 equivalence classes. [2025-03-04 09:52:33,770 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 37 of 37 statements. [2025-03-04 09:52:33,770 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-04 09:52:33,770 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat