./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/pthread-wmm/safe027_pso.oepc_pso.opt_tso.oepc_tso.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 48c9605d Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/pthread-wmm/safe027_pso.oepc_pso.opt_tso.oepc_tso.opt.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7912270168edfe57ed71790473a28594e3bc48002f5ead86961705c042bbf781 --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 08:26:24,147 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 08:26:24,203 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2025-02-08 08:26:24,207 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 08:26:24,207 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 08:26:24,225 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 08:26:24,225 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 08:26:24,225 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 08:26:24,226 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 08:26:24,226 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 08:26:24,226 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 08:26:24,226 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 08:26:24,226 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 08:26:24,226 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 08:26:24,226 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 08:26:24,226 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 08:26:24,226 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-08 08:26:24,226 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 08:26:24,227 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-08 08:26:24,228 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 08:26:24,228 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-02-08 08:26:24,228 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-02-08 08:26:24,228 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-02-08 08:26:24,228 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 08:26:24,228 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-08 08:26:24,228 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-08 08:26:24,228 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-08 08:26:24,228 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 08:26:24,228 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 08:26:24,228 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 08:26:24,229 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 08:26:24,229 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 08:26:24,229 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 08:26:24,229 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 08:26:24,229 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 08:26:24,229 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 08:26:24,229 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 08:26:24,229 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 08:26:24,229 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 08:26:24,229 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 08:26:24,229 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 08:26:24,229 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 08:26:24,229 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7912270168edfe57ed71790473a28594e3bc48002f5ead86961705c042bbf781 [2025-02-08 08:26:24,482 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 08:26:24,492 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 08:26:24,493 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 08:26:24,494 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 08:26:24,495 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 08:26:24,496 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe027_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2025-02-08 08:26:25,683 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/45abef22e/b3d00ef1649a4e989fe759c96d75fc9a/FLAG33ed00bdf [2025-02-08 08:26:26,015 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 08:26:26,015 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe027_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2025-02-08 08:26:26,036 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/45abef22e/b3d00ef1649a4e989fe759c96d75fc9a/FLAG33ed00bdf [2025-02-08 08:26:26,054 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/45abef22e/b3d00ef1649a4e989fe759c96d75fc9a [2025-02-08 08:26:26,056 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 08:26:26,058 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 08:26:26,059 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 08:26:26,060 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 08:26:26,063 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 08:26:26,064 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 08:26:26" (1/1) ... [2025-02-08 08:26:26,065 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7388eedb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:26:26, skipping insertion in model container [2025-02-08 08:26:26,065 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 08:26:26" (1/1) ... [2025-02-08 08:26:26,098 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 08:26:26,315 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 08:26:26,323 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 08:26:26,368 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 08:26:26,392 INFO L204 MainTranslator]: Completed translation [2025-02-08 08:26:26,393 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:26:26 WrapperNode [2025-02-08 08:26:26,393 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 08:26:26,394 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 08:26:26,394 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 08:26:26,395 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 08:26:26,399 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:26:26" (1/1) ... [2025-02-08 08:26:26,406 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:26:26" (1/1) ... [2025-02-08 08:26:26,427 INFO L138 Inliner]: procedures = 176, calls = 47, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 68 [2025-02-08 08:26:26,427 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 08:26:26,428 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 08:26:26,428 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 08:26:26,428 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 08:26:26,435 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:26:26" (1/1) ... [2025-02-08 08:26:26,436 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:26:26" (1/1) ... [2025-02-08 08:26:26,440 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:26:26" (1/1) ... [2025-02-08 08:26:26,458 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2025-02-08 08:26:26,459 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:26:26" (1/1) ... [2025-02-08 08:26:26,459 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:26:26" (1/1) ... [2025-02-08 08:26:26,462 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:26:26" (1/1) ... [2025-02-08 08:26:26,463 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:26:26" (1/1) ... [2025-02-08 08:26:26,464 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:26:26" (1/1) ... [2025-02-08 08:26:26,465 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:26:26" (1/1) ... [2025-02-08 08:26:26,466 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 08:26:26,466 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 08:26:26,467 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 08:26:26,467 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 08:26:26,467 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:26:26" (1/1) ... [2025-02-08 08:26:26,471 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 08:26:26,483 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:26:26,499 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-08 08:26:26,505 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-08 08:26:26,524 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-02-08 08:26:26,524 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 08:26:26,524 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2025-02-08 08:26:26,524 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2025-02-08 08:26:26,524 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2025-02-08 08:26:26,524 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2025-02-08 08:26:26,524 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2025-02-08 08:26:26,524 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2025-02-08 08:26:26,524 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2025-02-08 08:26:26,524 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2025-02-08 08:26:26,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-08 08:26:26,524 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-02-08 08:26:26,524 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 08:26:26,524 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 08:26:26,528 WARN L227 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-02-08 08:26:26,613 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 08:26:26,614 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 08:26:26,754 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-08 08:26:26,754 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 08:26:26,843 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 08:26:26,843 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 08:26:26,843 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 08:26:26 BoogieIcfgContainer [2025-02-08 08:26:26,843 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 08:26:26,845 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 08:26:26,845 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 08:26:26,849 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 08:26:26,849 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 08:26:26" (1/3) ... [2025-02-08 08:26:26,849 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@562927a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 08:26:26, skipping insertion in model container [2025-02-08 08:26:26,850 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:26:26" (2/3) ... [2025-02-08 08:26:26,850 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@562927a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 08:26:26, skipping insertion in model container [2025-02-08 08:26:26,850 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 08:26:26" (3/3) ... [2025-02-08 08:26:26,851 INFO L128 eAbstractionObserver]: Analyzing ICFG safe027_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2025-02-08 08:26:26,862 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 08:26:26,863 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG safe027_pso.oepc_pso.opt_tso.oepc_tso.opt.i that has 5 procedures, 49 locations, 1 initial locations, 0 loop locations, and 2 error locations. [2025-02-08 08:26:26,864 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-08 08:26:26,910 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-02-08 08:26:26,942 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 61 places, 50 transitions, 116 flow [2025-02-08 08:26:26,978 INFO L124 PetriNetUnfolderBase]: 2/46 cut-off events. [2025-02-08 08:26:26,980 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 08:26:26,983 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59 conditions, 46 events. 2/46 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 87 event pairs, 0 based on Foata normal form. 0/42 useless extension candidates. Maximal degree in co-relation 50. Up to 2 conditions per place. [2025-02-08 08:26:26,984 INFO L82 GeneralOperation]: Start removeDead. Operand has 61 places, 50 transitions, 116 flow [2025-02-08 08:26:26,987 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 56 places, 45 transitions, 102 flow [2025-02-08 08:26:26,997 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 08:26:27,013 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;@392fdbdb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 08:26:27,014 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2025-02-08 08:26:27,030 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-08 08:26:27,030 INFO L124 PetriNetUnfolderBase]: 2/43 cut-off events. [2025-02-08 08:26:27,030 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 08:26:27,030 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:26:27,031 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:26:27,031 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2025-02-08 08:26:27,039 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:26:27,039 INFO L85 PathProgramCache]: Analyzing trace with hash -1153321760, now seen corresponding path program 1 times [2025-02-08 08:26:27,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:26:27,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122656347] [2025-02-08 08:26:27,046 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:26:27,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:26:27,116 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-02-08 08:26:27,142 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-02-08 08:26:27,143 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:26:27,143 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:26:27,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:26:27,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:26:27,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1122656347] [2025-02-08 08:26:27,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1122656347] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:26:27,258 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:26:27,259 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-08 08:26:27,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304367760] [2025-02-08 08:26:27,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:26:27,265 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 08:26:27,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:26:27,284 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 08:26:27,284 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 08:26:27,289 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 50 [2025-02-08 08:26:27,294 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 45 transitions, 102 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) [2025-02-08 08:26:27,294 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:26:27,294 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 50 [2025-02-08 08:26:27,295 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:26:29,708 INFO L124 PetriNetUnfolderBase]: 26557/37849 cut-off events. [2025-02-08 08:26:29,709 INFO L125 PetriNetUnfolderBase]: For 178/178 co-relation queries the response was YES. [2025-02-08 08:26:29,803 INFO L83 FinitePrefix]: Finished finitePrefix Result has 73379 conditions, 37849 events. 26557/37849 cut-off events. For 178/178 co-relation queries the response was YES. Maximal size of possible extension queue 1279. Compared 243171 event pairs, 26557 based on Foata normal form. 2700/40522 useless extension candidates. Maximal degree in co-relation 73367. Up to 35090 conditions per place. [2025-02-08 08:26:29,949 INFO L140 encePairwiseOnDemand]: 46/50 looper letters, 32 selfloop transitions, 1 changer transitions 1/41 dead transitions. [2025-02-08 08:26:29,949 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 41 transitions, 162 flow [2025-02-08 08:26:29,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 08:26:29,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 08:26:29,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 70 transitions. [2025-02-08 08:26:29,960 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4666666666666667 [2025-02-08 08:26:29,962 INFO L175 Difference]: Start difference. First operand has 56 places, 45 transitions, 102 flow. Second operand 3 states and 70 transitions. [2025-02-08 08:26:29,963 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 41 transitions, 162 flow [2025-02-08 08:26:29,971 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 41 transitions, 158 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-02-08 08:26:29,974 INFO L231 Difference]: Finished difference. Result has 52 places, 40 transitions, 90 flow [2025-02-08 08:26:29,976 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=90, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=90, PETRI_PLACES=52, PETRI_TRANSITIONS=40} [2025-02-08 08:26:29,980 INFO L279 CegarLoopForPetriNet]: 56 programPoint places, -4 predicate places. [2025-02-08 08:26:29,980 INFO L471 AbstractCegarLoop]: Abstraction has has 52 places, 40 transitions, 90 flow [2025-02-08 08:26:29,981 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) [2025-02-08 08:26:29,981 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:26:29,981 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:26:29,981 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-08 08:26:29,981 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2025-02-08 08:26:29,982 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:26:29,983 INFO L85 PathProgramCache]: Analyzing trace with hash -1153320584, now seen corresponding path program 1 times [2025-02-08 08:26:29,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:26:29,983 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769985999] [2025-02-08 08:26:29,983 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:26:29,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:26:29,992 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-02-08 08:26:30,017 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-02-08 08:26:30,017 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:26:30,017 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:26:30,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:26:30,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:26:30,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1769985999] [2025-02-08 08:26:30,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1769985999] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:26:30,305 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:26:30,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 08:26:30,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833469515] [2025-02-08 08:26:30,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:26:30,306 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 08:26:30,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:26:30,307 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 08:26:30,307 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-08 08:26:30,309 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 50 [2025-02-08 08:26:30,309 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 40 transitions, 90 flow. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:26:30,309 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:26:30,309 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 50 [2025-02-08 08:26:30,309 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:26:32,241 INFO L124 PetriNetUnfolderBase]: 34142/47033 cut-off events. [2025-02-08 08:26:32,241 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 08:26:32,332 INFO L83 FinitePrefix]: Finished finitePrefix Result has 92746 conditions, 47033 events. 34142/47033 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 1607. Compared 297660 event pairs, 7367 based on Foata normal form. 0/46154 useless extension candidates. Maximal degree in co-relation 92740. Up to 30566 conditions per place. [2025-02-08 08:26:32,443 INFO L140 encePairwiseOnDemand]: 43/50 looper letters, 50 selfloop transitions, 3 changer transitions 80/139 dead transitions. [2025-02-08 08:26:32,443 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 139 transitions, 560 flow [2025-02-08 08:26:32,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-08 08:26:32,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-02-08 08:26:32,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 223 transitions. [2025-02-08 08:26:32,445 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5575 [2025-02-08 08:26:32,445 INFO L175 Difference]: Start difference. First operand has 52 places, 40 transitions, 90 flow. Second operand 8 states and 223 transitions. [2025-02-08 08:26:32,445 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 139 transitions, 560 flow [2025-02-08 08:26:32,446 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 139 transitions, 559 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-08 08:26:32,449 INFO L231 Difference]: Finished difference. Result has 62 places, 41 transitions, 122 flow [2025-02-08 08:26:32,449 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=89, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=122, PETRI_PLACES=62, PETRI_TRANSITIONS=41} [2025-02-08 08:26:32,450 INFO L279 CegarLoopForPetriNet]: 56 programPoint places, 6 predicate places. [2025-02-08 08:26:32,450 INFO L471 AbstractCegarLoop]: Abstraction has has 62 places, 41 transitions, 122 flow [2025-02-08 08:26:32,450 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:26:32,450 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:26:32,450 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:26:32,450 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-08 08:26:32,450 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2025-02-08 08:26:32,451 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:26:32,451 INFO L85 PathProgramCache]: Analyzing trace with hash -1179390569, now seen corresponding path program 1 times [2025-02-08 08:26:32,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:26:32,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034837610] [2025-02-08 08:26:32,451 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:26:32,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:26:32,457 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-02-08 08:26:32,463 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-02-08 08:26:32,463 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:26:32,463 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:26:32,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:26:32,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:26:32,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1034837610] [2025-02-08 08:26:32,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1034837610] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:26:32,635 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:26:32,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 08:26:32,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155077939] [2025-02-08 08:26:32,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:26:32,635 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 08:26:32,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:26:32,635 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 08:26:32,635 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-02-08 08:26:32,638 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 50 [2025-02-08 08:26:32,639 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 41 transitions, 122 flow. Second operand has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 6 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:26:32,639 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:26:32,639 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 50 [2025-02-08 08:26:32,639 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:26:34,458 INFO L124 PetriNetUnfolderBase]: 26297/36515 cut-off events. [2025-02-08 08:26:34,458 INFO L125 PetriNetUnfolderBase]: For 15477/15477 co-relation queries the response was YES. [2025-02-08 08:26:34,563 INFO L83 FinitePrefix]: Finished finitePrefix Result has 83803 conditions, 36515 events. 26297/36515 cut-off events. For 15477/15477 co-relation queries the response was YES. Maximal size of possible extension queue 1199. Compared 221996 event pairs, 3682 based on Foata normal form. 750/37244 useless extension candidates. Maximal degree in co-relation 83791. Up to 26491 conditions per place. [2025-02-08 08:26:34,643 INFO L140 encePairwiseOnDemand]: 45/50 looper letters, 50 selfloop transitions, 3 changer transitions 61/120 dead transitions. [2025-02-08 08:26:34,643 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 120 transitions, 532 flow [2025-02-08 08:26:34,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-08 08:26:34,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-02-08 08:26:34,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 192 transitions. [2025-02-08 08:26:34,645 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5485714285714286 [2025-02-08 08:26:34,645 INFO L175 Difference]: Start difference. First operand has 62 places, 41 transitions, 122 flow. Second operand 7 states and 192 transitions. [2025-02-08 08:26:34,645 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 120 transitions, 532 flow [2025-02-08 08:26:34,908 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 120 transitions, 515 flow, removed 7 selfloop flow, removed 3 redundant places. [2025-02-08 08:26:34,909 INFO L231 Difference]: Finished difference. Result has 64 places, 41 transitions, 132 flow [2025-02-08 08:26:34,909 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=113, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=132, PETRI_PLACES=64, PETRI_TRANSITIONS=41} [2025-02-08 08:26:34,909 INFO L279 CegarLoopForPetriNet]: 56 programPoint places, 8 predicate places. [2025-02-08 08:26:34,909 INFO L471 AbstractCegarLoop]: Abstraction has has 64 places, 41 transitions, 132 flow [2025-02-08 08:26:34,910 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 6 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:26:34,910 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:26:34,910 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:26:34,910 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-08 08:26:34,910 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2025-02-08 08:26:34,911 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:26:34,911 INFO L85 PathProgramCache]: Analyzing trace with hash 308135991, now seen corresponding path program 1 times [2025-02-08 08:26:34,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:26:34,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453340217] [2025-02-08 08:26:34,911 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:26:34,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:26:34,918 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-02-08 08:26:34,924 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-02-08 08:26:34,925 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:26:34,925 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:26:35,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:26:35,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:26:35,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1453340217] [2025-02-08 08:26:35,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1453340217] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:26:35,048 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:26:35,048 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 08:26:35,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422074809] [2025-02-08 08:26:35,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:26:35,048 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 08:26:35,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:26:35,049 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 08:26:35,049 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-08 08:26:35,050 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 50 [2025-02-08 08:26:35,050 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 41 transitions, 132 flow. Second operand has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 6 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:26:35,050 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:26:35,050 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 50 [2025-02-08 08:26:35,050 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:26:36,891 INFO L124 PetriNetUnfolderBase]: 29477/40678 cut-off events. [2025-02-08 08:26:36,891 INFO L125 PetriNetUnfolderBase]: For 25484/25484 co-relation queries the response was YES. [2025-02-08 08:26:37,048 INFO L83 FinitePrefix]: Finished finitePrefix Result has 96678 conditions, 40678 events. 29477/40678 cut-off events. For 25484/25484 co-relation queries the response was YES. Maximal size of possible extension queue 1306. Compared 249538 event pairs, 2965 based on Foata normal form. 875/41552 useless extension candidates. Maximal degree in co-relation 96662. Up to 25063 conditions per place. [2025-02-08 08:26:37,153 INFO L140 encePairwiseOnDemand]: 41/50 looper letters, 91 selfloop transitions, 13 changer transitions 114/224 dead transitions. [2025-02-08 08:26:37,153 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 224 transitions, 1076 flow [2025-02-08 08:26:37,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-02-08 08:26:37,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2025-02-08 08:26:37,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 363 transitions. [2025-02-08 08:26:37,159 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5584615384615385 [2025-02-08 08:26:37,159 INFO L175 Difference]: Start difference. First operand has 64 places, 41 transitions, 132 flow. Second operand 13 states and 363 transitions. [2025-02-08 08:26:37,159 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 224 transitions, 1076 flow [2025-02-08 08:26:37,753 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 224 transitions, 1030 flow, removed 18 selfloop flow, removed 6 redundant places. [2025-02-08 08:26:37,754 INFO L231 Difference]: Finished difference. Result has 77 places, 51 transitions, 261 flow [2025-02-08 08:26:37,754 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=116, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=261, PETRI_PLACES=77, PETRI_TRANSITIONS=51} [2025-02-08 08:26:37,755 INFO L279 CegarLoopForPetriNet]: 56 programPoint places, 21 predicate places. [2025-02-08 08:26:37,755 INFO L471 AbstractCegarLoop]: Abstraction has has 77 places, 51 transitions, 261 flow [2025-02-08 08:26:37,755 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 6 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:26:37,755 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:26:37,755 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:26:37,755 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-08 08:26:37,755 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2025-02-08 08:26:37,755 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:26:37,755 INFO L85 PathProgramCache]: Analyzing trace with hash -1626347640, now seen corresponding path program 1 times [2025-02-08 08:26:37,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:26:37,756 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426970469] [2025-02-08 08:26:37,756 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:26:37,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:26:37,762 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-02-08 08:26:37,769 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-02-08 08:26:37,769 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:26:37,769 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:26:37,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:26:38,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:26:38,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [426970469] [2025-02-08 08:26:38,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [426970469] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:26:38,000 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:26:38,000 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 08:26:38,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [126525374] [2025-02-08 08:26:38,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:26:38,001 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 08:26:38,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:26:38,001 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 08:26:38,001 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-08 08:26:38,010 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 50 [2025-02-08 08:26:38,011 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 51 transitions, 261 flow. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:26:38,011 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:26:38,011 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 50 [2025-02-08 08:26:38,011 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:26:40,113 INFO L124 PetriNetUnfolderBase]: 27316/37612 cut-off events. [2025-02-08 08:26:40,113 INFO L125 PetriNetUnfolderBase]: For 115457/115457 co-relation queries the response was YES. [2025-02-08 08:26:40,289 INFO L83 FinitePrefix]: Finished finitePrefix Result has 121451 conditions, 37612 events. 27316/37612 cut-off events. For 115457/115457 co-relation queries the response was YES. Maximal size of possible extension queue 1118. Compared 222816 event pairs, 11336 based on Foata normal form. 720/38326 useless extension candidates. Maximal degree in co-relation 121428. Up to 27914 conditions per place. [2025-02-08 08:26:40,392 INFO L140 encePairwiseOnDemand]: 45/50 looper letters, 64 selfloop transitions, 6 changer transitions 61/137 dead transitions. [2025-02-08 08:26:40,392 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 137 transitions, 875 flow [2025-02-08 08:26:40,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-08 08:26:40,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-02-08 08:26:40,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 196 transitions. [2025-02-08 08:26:40,394 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.56 [2025-02-08 08:26:40,394 INFO L175 Difference]: Start difference. First operand has 77 places, 51 transitions, 261 flow. Second operand 7 states and 196 transitions. [2025-02-08 08:26:40,394 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 137 transitions, 875 flow [2025-02-08 08:26:40,663 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 137 transitions, 776 flow, removed 43 selfloop flow, removed 7 redundant places. [2025-02-08 08:26:40,665 INFO L231 Difference]: Finished difference. Result has 73 places, 51 transitions, 248 flow [2025-02-08 08:26:40,665 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=220, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=248, PETRI_PLACES=73, PETRI_TRANSITIONS=51} [2025-02-08 08:26:40,665 INFO L279 CegarLoopForPetriNet]: 56 programPoint places, 17 predicate places. [2025-02-08 08:26:40,665 INFO L471 AbstractCegarLoop]: Abstraction has has 73 places, 51 transitions, 248 flow [2025-02-08 08:26:40,666 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:26:40,666 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:26:40,666 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] [2025-02-08 08:26:40,666 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-08 08:26:40,666 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2025-02-08 08:26:40,666 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:26:40,667 INFO L85 PathProgramCache]: Analyzing trace with hash -752677226, now seen corresponding path program 1 times [2025-02-08 08:26:40,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:26:40,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [294928893] [2025-02-08 08:26:40,667 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:26:40,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:26:40,672 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-02-08 08:26:40,675 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-02-08 08:26:40,676 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:26:40,676 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:26:40,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:26:40,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:26:40,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [294928893] [2025-02-08 08:26:40,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [294928893] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:26:40,777 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:26:40,777 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-08 08:26:40,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544633270] [2025-02-08 08:26:40,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:26:40,778 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-08 08:26:40,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:26:40,778 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-08 08:26:40,778 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2025-02-08 08:26:40,779 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 50 [2025-02-08 08:26:40,779 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 51 transitions, 248 flow. Second operand has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 7 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:26:40,780 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:26:40,780 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 50 [2025-02-08 08:26:40,780 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:26:43,180 INFO L124 PetriNetUnfolderBase]: 35174/47791 cut-off events. [2025-02-08 08:26:43,180 INFO L125 PetriNetUnfolderBase]: For 85996/85996 co-relation queries the response was YES. [2025-02-08 08:26:43,407 INFO L83 FinitePrefix]: Finished finitePrefix Result has 137658 conditions, 47791 events. 35174/47791 cut-off events. For 85996/85996 co-relation queries the response was YES. Maximal size of possible extension queue 1469. Compared 283956 event pairs, 5535 based on Foata normal form. 625/48410 useless extension candidates. Maximal degree in co-relation 137635. Up to 19636 conditions per place. [2025-02-08 08:26:43,480 INFO L140 encePairwiseOnDemand]: 44/50 looper letters, 65 selfloop transitions, 5 changer transitions 78/154 dead transitions. [2025-02-08 08:26:43,480 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 154 transitions, 922 flow [2025-02-08 08:26:43,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-08 08:26:43,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-02-08 08:26:43,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 227 transitions. [2025-02-08 08:26:43,481 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5675 [2025-02-08 08:26:43,482 INFO L175 Difference]: Start difference. First operand has 73 places, 51 transitions, 248 flow. Second operand 8 states and 227 transitions. [2025-02-08 08:26:43,482 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 154 transitions, 922 flow [2025-02-08 08:26:44,222 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 154 transitions, 876 flow, removed 15 selfloop flow, removed 8 redundant places. [2025-02-08 08:26:44,223 INFO L231 Difference]: Finished difference. Result has 74 places, 43 transitions, 199 flow [2025-02-08 08:26:44,223 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=222, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=199, PETRI_PLACES=74, PETRI_TRANSITIONS=43} [2025-02-08 08:26:44,224 INFO L279 CegarLoopForPetriNet]: 56 programPoint places, 18 predicate places. [2025-02-08 08:26:44,224 INFO L471 AbstractCegarLoop]: Abstraction has has 74 places, 43 transitions, 199 flow [2025-02-08 08:26:44,224 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 7 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:26:44,224 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:26:44,224 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:26:44,224 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-02-08 08:26:44,224 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2025-02-08 08:26:44,224 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:26:44,224 INFO L85 PathProgramCache]: Analyzing trace with hash 1900709045, now seen corresponding path program 1 times [2025-02-08 08:26:44,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:26:44,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045430522] [2025-02-08 08:26:44,224 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:26:44,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:26:44,229 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 23 statements into 1 equivalence classes. [2025-02-08 08:26:44,232 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-02-08 08:26:44,232 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:26:44,232 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:26:44,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:26:44,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:26:44,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1045430522] [2025-02-08 08:26:44,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1045430522] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:26:44,335 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:26:44,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-08 08:26:44,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825461966] [2025-02-08 08:26:44,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:26:44,336 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-08 08:26:44,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:26:44,336 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-08 08:26:44,336 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2025-02-08 08:26:44,339 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 50 [2025-02-08 08:26:44,339 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 43 transitions, 199 flow. Second operand has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 7 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) [2025-02-08 08:26:44,339 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:26:44,340 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 50 [2025-02-08 08:26:44,340 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:26:46,064 INFO L124 PetriNetUnfolderBase]: 26197/35873 cut-off events. [2025-02-08 08:26:46,064 INFO L125 PetriNetUnfolderBase]: For 63495/63495 co-relation queries the response was YES. [2025-02-08 08:26:46,395 INFO L83 FinitePrefix]: Finished finitePrefix Result has 103751 conditions, 35873 events. 26197/35873 cut-off events. For 63495/63495 co-relation queries the response was YES. Maximal size of possible extension queue 986. Compared 201125 event pairs, 3256 based on Foata normal form. 500/36351 useless extension candidates. Maximal degree in co-relation 103728. Up to 15196 conditions per place. [2025-02-08 08:26:46,455 INFO L140 encePairwiseOnDemand]: 44/50 looper letters, 59 selfloop transitions, 5 changer transitions 71/141 dead transitions. [2025-02-08 08:26:46,455 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 141 transitions, 868 flow [2025-02-08 08:26:46,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-08 08:26:46,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-02-08 08:26:46,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 217 transitions. [2025-02-08 08:26:46,457 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5425 [2025-02-08 08:26:46,457 INFO L175 Difference]: Start difference. First operand has 74 places, 43 transitions, 199 flow. Second operand 8 states and 217 transitions. [2025-02-08 08:26:46,457 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 141 transitions, 868 flow [2025-02-08 08:26:46,773 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 141 transitions, 794 flow, removed 17 selfloop flow, removed 10 redundant places. [2025-02-08 08:26:46,774 INFO L231 Difference]: Finished difference. Result has 73 places, 43 transitions, 194 flow [2025-02-08 08:26:46,774 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=166, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=194, PETRI_PLACES=73, PETRI_TRANSITIONS=43} [2025-02-08 08:26:46,775 INFO L279 CegarLoopForPetriNet]: 56 programPoint places, 17 predicate places. [2025-02-08 08:26:46,775 INFO L471 AbstractCegarLoop]: Abstraction has has 73 places, 43 transitions, 194 flow [2025-02-08 08:26:46,775 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 7 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) [2025-02-08 08:26:46,775 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:26:46,775 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] [2025-02-08 08:26:46,775 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-02-08 08:26:46,775 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2025-02-08 08:26:46,776 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:26:46,776 INFO L85 PathProgramCache]: Analyzing trace with hash -1050708428, now seen corresponding path program 1 times [2025-02-08 08:26:46,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:26:46,776 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509345069] [2025-02-08 08:26:46,776 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:26:46,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:26:46,782 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-02-08 08:26:46,792 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-02-08 08:26:46,792 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:26:46,792 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:26:46,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:26:46,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:26:46,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1509345069] [2025-02-08 08:26:46,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1509345069] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:26:46,884 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:26:46,884 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 08:26:46,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013287756] [2025-02-08 08:26:46,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:26:46,884 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 08:26:46,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:26:46,885 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 08:26:46,885 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 08:26:46,885 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 50 [2025-02-08 08:26:46,885 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 43 transitions, 194 flow. Second operand has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:26:46,885 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:26:46,885 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 50 [2025-02-08 08:26:46,885 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:26:47,849 INFO L124 PetriNetUnfolderBase]: 12988/18387 cut-off events. [2025-02-08 08:26:47,850 INFO L125 PetriNetUnfolderBase]: For 33841/33841 co-relation queries the response was YES. [2025-02-08 08:26:47,883 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52605 conditions, 18387 events. 12988/18387 cut-off events. For 33841/33841 co-relation queries the response was YES. Maximal size of possible extension queue 496. Compared 102510 event pairs, 1366 based on Foata normal form. 625/19010 useless extension candidates. Maximal degree in co-relation 52584. Up to 10945 conditions per place. [2025-02-08 08:26:47,921 INFO L140 encePairwiseOnDemand]: 43/50 looper letters, 76 selfloop transitions, 6 changer transitions 1/89 dead transitions. [2025-02-08 08:26:47,921 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 89 transitions, 586 flow [2025-02-08 08:26:47,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 08:26:47,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 08:26:47,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 121 transitions. [2025-02-08 08:26:47,922 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.605 [2025-02-08 08:26:47,922 INFO L175 Difference]: Start difference. First operand has 73 places, 43 transitions, 194 flow. Second operand 4 states and 121 transitions. [2025-02-08 08:26:47,922 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 89 transitions, 586 flow [2025-02-08 08:26:47,983 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 89 transitions, 544 flow, removed 6 selfloop flow, removed 8 redundant places. [2025-02-08 08:26:47,984 INFO L231 Difference]: Finished difference. Result has 66 places, 47 transitions, 212 flow [2025-02-08 08:26:47,984 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=170, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=212, PETRI_PLACES=66, PETRI_TRANSITIONS=47} [2025-02-08 08:26:47,984 INFO L279 CegarLoopForPetriNet]: 56 programPoint places, 10 predicate places. [2025-02-08 08:26:47,984 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 47 transitions, 212 flow [2025-02-08 08:26:47,985 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:26:47,985 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:26:47,985 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:26:47,985 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-02-08 08:26:47,985 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2025-02-08 08:26:47,985 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:26:47,985 INFO L85 PathProgramCache]: Analyzing trace with hash 1093389279, now seen corresponding path program 1 times [2025-02-08 08:26:47,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:26:47,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389740245] [2025-02-08 08:26:47,985 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:26:47,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:26:47,989 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 27 statements into 1 equivalence classes. [2025-02-08 08:26:47,993 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 27 of 27 statements. [2025-02-08 08:26:47,993 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:26:47,993 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:26:48,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:26:48,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:26:48,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389740245] [2025-02-08 08:26:48,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [389740245] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:26:48,055 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:26:48,055 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 08:26:48,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988350561] [2025-02-08 08:26:48,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:26:48,055 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 08:26:48,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:26:48,055 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 08:26:48,055 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-02-08 08:26:48,056 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 50 [2025-02-08 08:26:48,056 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 47 transitions, 212 flow. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:26:48,056 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:26:48,056 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 50 [2025-02-08 08:26:48,056 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:26:48,693 INFO L124 PetriNetUnfolderBase]: 9442/13512 cut-off events. [2025-02-08 08:26:48,694 INFO L125 PetriNetUnfolderBase]: For 22907/22907 co-relation queries the response was YES. [2025-02-08 08:26:48,723 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40108 conditions, 13512 events. 9442/13512 cut-off events. For 22907/22907 co-relation queries the response was YES. Maximal size of possible extension queue 367. Compared 72072 event pairs, 630 based on Foata normal form. 544/14054 useless extension candidates. Maximal degree in co-relation 40091. Up to 6481 conditions per place. [2025-02-08 08:26:48,750 INFO L140 encePairwiseOnDemand]: 43/50 looper letters, 93 selfloop transitions, 10 changer transitions 1/110 dead transitions. [2025-02-08 08:26:48,751 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 110 transitions, 717 flow [2025-02-08 08:26:48,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 08:26:48,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-02-08 08:26:48,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 154 transitions. [2025-02-08 08:26:48,751 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.616 [2025-02-08 08:26:48,751 INFO L175 Difference]: Start difference. First operand has 66 places, 47 transitions, 212 flow. Second operand 5 states and 154 transitions. [2025-02-08 08:26:48,752 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 110 transitions, 717 flow [2025-02-08 08:26:48,756 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 110 transitions, 706 flow, removed 1 selfloop flow, removed 2 redundant places. [2025-02-08 08:26:48,757 INFO L231 Difference]: Finished difference. Result has 70 places, 51 transitions, 264 flow [2025-02-08 08:26:48,757 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=203, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=264, PETRI_PLACES=70, PETRI_TRANSITIONS=51} [2025-02-08 08:26:48,758 INFO L279 CegarLoopForPetriNet]: 56 programPoint places, 14 predicate places. [2025-02-08 08:26:48,758 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 51 transitions, 264 flow [2025-02-08 08:26:48,758 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:26:48,758 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:26:48,758 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] [2025-02-08 08:26:48,758 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-02-08 08:26:48,758 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2025-02-08 08:26:48,759 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:26:48,759 INFO L85 PathProgramCache]: Analyzing trace with hash -1193914314, now seen corresponding path program 1 times [2025-02-08 08:26:48,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:26:48,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724508208] [2025-02-08 08:26:48,759 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:26:48,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:26:48,763 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 29 statements into 1 equivalence classes. [2025-02-08 08:26:48,767 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 29 of 29 statements. [2025-02-08 08:26:48,771 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:26:48,772 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:26:48,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:26:48,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:26:48,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724508208] [2025-02-08 08:26:48,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [724508208] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:26:48,849 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:26:48,849 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 08:26:48,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581296634] [2025-02-08 08:26:48,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:26:48,850 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 08:26:48,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:26:48,851 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 08:26:48,851 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2025-02-08 08:26:48,851 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 50 [2025-02-08 08:26:48,851 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 51 transitions, 264 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) [2025-02-08 08:26:48,851 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:26:48,851 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 50 [2025-02-08 08:26:48,851 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:26:49,244 INFO L124 PetriNetUnfolderBase]: 5674/8140 cut-off events. [2025-02-08 08:26:49,244 INFO L125 PetriNetUnfolderBase]: For 17309/17309 co-relation queries the response was YES. [2025-02-08 08:26:49,271 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25806 conditions, 8140 events. 5674/8140 cut-off events. For 17309/17309 co-relation queries the response was YES. Maximal size of possible extension queue 216. Compared 39552 event pairs, 438 based on Foata normal form. 328/8466 useless extension candidates. Maximal degree in co-relation 25787. Up to 2376 conditions per place. [2025-02-08 08:26:49,293 INFO L140 encePairwiseOnDemand]: 43/50 looper letters, 102 selfloop transitions, 14 changer transitions 1/123 dead transitions. [2025-02-08 08:26:49,293 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 123 transitions, 849 flow [2025-02-08 08:26:49,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 08:26:49,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-08 08:26:49,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 181 transitions. [2025-02-08 08:26:49,295 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6033333333333334 [2025-02-08 08:26:49,295 INFO L175 Difference]: Start difference. First operand has 70 places, 51 transitions, 264 flow. Second operand 6 states and 181 transitions. [2025-02-08 08:26:49,295 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 123 transitions, 849 flow [2025-02-08 08:26:49,315 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 123 transitions, 819 flow, removed 5 selfloop flow, removed 4 redundant places. [2025-02-08 08:26:49,317 INFO L231 Difference]: Finished difference. Result has 73 places, 55 transitions, 314 flow [2025-02-08 08:26:49,317 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=237, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=314, PETRI_PLACES=73, PETRI_TRANSITIONS=55} [2025-02-08 08:26:49,317 INFO L279 CegarLoopForPetriNet]: 56 programPoint places, 17 predicate places. [2025-02-08 08:26:49,318 INFO L471 AbstractCegarLoop]: Abstraction has has 73 places, 55 transitions, 314 flow [2025-02-08 08:26:49,318 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) [2025-02-08 08:26:49,318 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:26:49,319 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] [2025-02-08 08:26:49,319 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-02-08 08:26:49,319 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2025-02-08 08:26:49,319 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:26:49,320 INFO L85 PathProgramCache]: Analyzing trace with hash -1289663268, now seen corresponding path program 1 times [2025-02-08 08:26:49,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:26:49,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154421249] [2025-02-08 08:26:49,320 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:26:49,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:26:49,325 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 32 statements into 1 equivalence classes. [2025-02-08 08:26:49,331 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 32 of 32 statements. [2025-02-08 08:26:49,334 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:26:49,334 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:26:49,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:26:49,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:26:49,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [154421249] [2025-02-08 08:26:49,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [154421249] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:26:49,424 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:26:49,424 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-08 08:26:49,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51424942] [2025-02-08 08:26:49,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:26:49,425 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 08:26:49,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:26:49,425 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 08:26:49,425 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-08 08:26:49,426 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 50 [2025-02-08 08:26:49,426 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 55 transitions, 314 flow. Second operand has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 6 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:26:49,426 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:26:49,426 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 50 [2025-02-08 08:26:49,427 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:26:50,075 INFO L124 PetriNetUnfolderBase]: 8162/11630 cut-off events. [2025-02-08 08:26:50,076 INFO L125 PetriNetUnfolderBase]: For 25645/25645 co-relation queries the response was YES. [2025-02-08 08:26:50,108 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37961 conditions, 11630 events. 8162/11630 cut-off events. For 25645/25645 co-relation queries the response was YES. Maximal size of possible extension queue 292. Compared 58748 event pairs, 1682 based on Foata normal form. 88/11714 useless extension candidates. Maximal degree in co-relation 37941. Up to 6318 conditions per place. [2025-02-08 08:26:50,129 INFO L140 encePairwiseOnDemand]: 45/50 looper letters, 67 selfloop transitions, 2 changer transitions 52/127 dead transitions. [2025-02-08 08:26:50,129 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 127 transitions, 958 flow [2025-02-08 08:26:50,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 08:26:50,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-08 08:26:50,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 158 transitions. [2025-02-08 08:26:50,130 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5266666666666666 [2025-02-08 08:26:50,130 INFO L175 Difference]: Start difference. First operand has 73 places, 55 transitions, 314 flow. Second operand 6 states and 158 transitions. [2025-02-08 08:26:50,130 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 127 transitions, 958 flow [2025-02-08 08:26:50,174 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 127 transitions, 866 flow, removed 18 selfloop flow, removed 5 redundant places. [2025-02-08 08:26:50,175 INFO L231 Difference]: Finished difference. Result has 77 places, 56 transitions, 296 flow [2025-02-08 08:26:50,175 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=271, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=296, PETRI_PLACES=77, PETRI_TRANSITIONS=56} [2025-02-08 08:26:50,175 INFO L279 CegarLoopForPetriNet]: 56 programPoint places, 21 predicate places. [2025-02-08 08:26:50,175 INFO L471 AbstractCegarLoop]: Abstraction has has 77 places, 56 transitions, 296 flow [2025-02-08 08:26:50,176 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 6 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:26:50,176 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:26:50,176 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] [2025-02-08 08:26:50,176 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-02-08 08:26:50,176 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2025-02-08 08:26:50,176 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:26:50,176 INFO L85 PathProgramCache]: Analyzing trace with hash -549835368, now seen corresponding path program 2 times [2025-02-08 08:26:50,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:26:50,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802809498] [2025-02-08 08:26:50,176 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 08:26:50,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:26:50,181 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 32 statements into 1 equivalence classes. [2025-02-08 08:26:50,185 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 32 of 32 statements. [2025-02-08 08:26:50,185 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 08:26:50,185 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:26:50,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:26:50,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:26:50,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802809498] [2025-02-08 08:26:50,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1802809498] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:26:50,261 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:26:50,262 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-08 08:26:50,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444833453] [2025-02-08 08:26:50,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:26:50,262 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-08 08:26:50,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:26:50,262 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-08 08:26:50,262 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2025-02-08 08:26:50,262 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 50 [2025-02-08 08:26:50,263 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 56 transitions, 296 flow. Second operand has 7 states, 7 states have (on average 15.714285714285714) internal successors, (110), 7 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:26:50,263 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:26:50,263 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 50 [2025-02-08 08:26:50,263 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:26:50,681 INFO L124 PetriNetUnfolderBase]: 6106/8580 cut-off events. [2025-02-08 08:26:50,681 INFO L125 PetriNetUnfolderBase]: For 18899/18899 co-relation queries the response was YES. [2025-02-08 08:26:50,715 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26501 conditions, 8580 events. 6106/8580 cut-off events. For 18899/18899 co-relation queries the response was YES. Maximal size of possible extension queue 292. Compared 41648 event pairs, 506 based on Foata normal form. 208/8786 useless extension candidates. Maximal degree in co-relation 26479. Up to 2720 conditions per place. [2025-02-08 08:26:50,730 INFO L140 encePairwiseOnDemand]: 43/50 looper letters, 75 selfloop transitions, 18 changer transitions 19/118 dead transitions. [2025-02-08 08:26:50,730 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 118 transitions, 812 flow [2025-02-08 08:26:50,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-08 08:26:50,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-02-08 08:26:50,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 186 transitions. [2025-02-08 08:26:50,731 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5314285714285715 [2025-02-08 08:26:50,731 INFO L175 Difference]: Start difference. First operand has 77 places, 56 transitions, 296 flow. Second operand 7 states and 186 transitions. [2025-02-08 08:26:50,731 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 118 transitions, 812 flow [2025-02-08 08:26:50,775 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 118 transitions, 773 flow, removed 9 selfloop flow, removed 5 redundant places. [2025-02-08 08:26:50,777 INFO L231 Difference]: Finished difference. Result has 78 places, 51 transitions, 287 flow [2025-02-08 08:26:50,777 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=270, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=287, PETRI_PLACES=78, PETRI_TRANSITIONS=51} [2025-02-08 08:26:50,777 INFO L279 CegarLoopForPetriNet]: 56 programPoint places, 22 predicate places. [2025-02-08 08:26:50,777 INFO L471 AbstractCegarLoop]: Abstraction has has 78 places, 51 transitions, 287 flow [2025-02-08 08:26:50,777 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.714285714285714) internal successors, (110), 7 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:26:50,777 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:26:50,777 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] [2025-02-08 08:26:50,777 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-02-08 08:26:50,777 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2025-02-08 08:26:50,778 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:26:50,778 INFO L85 PathProgramCache]: Analyzing trace with hash -1498980607, now seen corresponding path program 1 times [2025-02-08 08:26:50,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:26:50,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777325929] [2025-02-08 08:26:50,778 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:26:50,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:26:50,782 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 35 statements into 1 equivalence classes. [2025-02-08 08:26:50,785 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 35 of 35 statements. [2025-02-08 08:26:50,786 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:26:50,786 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:26:50,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:26:50,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:26:50,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1777325929] [2025-02-08 08:26:50,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1777325929] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:26:50,860 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:26:50,860 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-08 08:26:50,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505651672] [2025-02-08 08:26:50,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:26:50,861 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 08:26:50,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:26:50,861 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 08:26:50,861 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-08 08:26:50,863 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 50 [2025-02-08 08:26:50,863 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 51 transitions, 287 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) [2025-02-08 08:26:50,863 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:26:50,864 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 50 [2025-02-08 08:26:50,864 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:26:51,134 INFO L124 PetriNetUnfolderBase]: 2760/3957 cut-off events. [2025-02-08 08:26:51,135 INFO L125 PetriNetUnfolderBase]: For 8566/8566 co-relation queries the response was YES. [2025-02-08 08:26:51,146 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12683 conditions, 3957 events. 2760/3957 cut-off events. For 8566/8566 co-relation queries the response was YES. Maximal size of possible extension queue 141. Compared 16733 event pairs, 540 based on Foata normal form. 16/3973 useless extension candidates. Maximal degree in co-relation 12662. Up to 2448 conditions per place. [2025-02-08 08:26:51,150 INFO L140 encePairwiseOnDemand]: 45/50 looper letters, 0 selfloop transitions, 0 changer transitions 81/81 dead transitions. [2025-02-08 08:26:51,151 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 81 transitions, 568 flow [2025-02-08 08:26:51,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 08:26:51,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-08 08:26:51,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 126 transitions. [2025-02-08 08:26:51,152 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.42 [2025-02-08 08:26:51,152 INFO L175 Difference]: Start difference. First operand has 78 places, 51 transitions, 287 flow. Second operand 6 states and 126 transitions. [2025-02-08 08:26:51,152 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 81 transitions, 568 flow [2025-02-08 08:26:51,170 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 81 transitions, 410 flow, removed 26 selfloop flow, removed 15 redundant places. [2025-02-08 08:26:51,170 INFO L231 Difference]: Finished difference. Result has 63 places, 0 transitions, 0 flow [2025-02-08 08:26:51,171 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=163, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=63, PETRI_TRANSITIONS=0} [2025-02-08 08:26:51,171 INFO L279 CegarLoopForPetriNet]: 56 programPoint places, 7 predicate places. [2025-02-08 08:26:51,171 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 0 transitions, 0 flow [2025-02-08 08:26:51,172 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) [2025-02-08 08:26:51,174 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (5 of 6 remaining) [2025-02-08 08:26:51,174 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (4 of 6 remaining) [2025-02-08 08:26:51,174 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 6 remaining) [2025-02-08 08:26:51,174 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 6 remaining) [2025-02-08 08:26:51,174 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 6 remaining) [2025-02-08 08:26:51,174 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 6 remaining) [2025-02-08 08:26:51,175 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-02-08 08:26:51,175 INFO L422 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:26:51,177 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-02-08 08:26:51,178 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-08 08:26:51,183 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.02 08:26:51 BasicIcfg [2025-02-08 08:26:51,184 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-08 08:26:51,184 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-08 08:26:51,184 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-08 08:26:51,184 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-08 08:26:51,185 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 08:26:26" (3/4) ... [2025-02-08 08:26:51,187 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-02-08 08:26:51,189 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure P0 [2025-02-08 08:26:51,189 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure P1 [2025-02-08 08:26:51,189 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure P2 [2025-02-08 08:26:51,189 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure P3 [2025-02-08 08:26:51,193 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 34 nodes and edges [2025-02-08 08:26:51,193 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2025-02-08 08:26:51,193 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2025-02-08 08:26:51,193 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-02-08 08:26:51,250 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-02-08 08:26:51,251 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-02-08 08:26:51,251 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-08 08:26:51,252 INFO L158 Benchmark]: Toolchain (without parser) took 25193.89ms. Allocated memory was 167.8MB in the beginning and 9.2GB in the end (delta: 9.0GB). Free memory was 122.0MB in the beginning and 6.7GB in the end (delta: -6.5GB). Peak memory consumption was 2.5GB. Max. memory is 16.1GB. [2025-02-08 08:26:51,252 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 201.3MB. Free memory is still 116.6MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 08:26:51,252 INFO L158 Benchmark]: CACSL2BoogieTranslator took 334.33ms. Allocated memory is still 167.8MB. Free memory was 122.0MB in the beginning and 101.7MB in the end (delta: 20.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-02-08 08:26:51,252 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.18ms. Allocated memory is still 167.8MB. Free memory was 101.7MB in the beginning and 100.8MB in the end (delta: 925.2kB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 08:26:51,253 INFO L158 Benchmark]: Boogie Preprocessor took 38.14ms. Allocated memory is still 167.8MB. Free memory was 100.8MB in the beginning and 98.9MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 08:26:51,253 INFO L158 Benchmark]: IcfgBuilder took 377.06ms. Allocated memory is still 167.8MB. Free memory was 98.9MB in the beginning and 76.6MB in the end (delta: 22.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-02-08 08:26:51,253 INFO L158 Benchmark]: TraceAbstraction took 24338.66ms. Allocated memory was 167.8MB in the beginning and 9.2GB in the end (delta: 9.0GB). Free memory was 75.6MB in the beginning and 6.7GB in the end (delta: -6.6GB). Peak memory consumption was 2.4GB. Max. memory is 16.1GB. [2025-02-08 08:26:51,254 INFO L158 Benchmark]: Witness Printer took 66.47ms. Allocated memory is still 9.2GB. Free memory was 6.7GB in the beginning and 6.7GB in the end (delta: 4.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-08 08:26:51,255 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 201.3MB. Free memory is still 116.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 334.33ms. Allocated memory is still 167.8MB. Free memory was 122.0MB in the beginning and 101.7MB in the end (delta: 20.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.18ms. Allocated memory is still 167.8MB. Free memory was 101.7MB in the beginning and 100.8MB in the end (delta: 925.2kB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 38.14ms. Allocated memory is still 167.8MB. Free memory was 100.8MB in the beginning and 98.9MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 377.06ms. Allocated memory is still 167.8MB. Free memory was 98.9MB in the beginning and 76.6MB in the end (delta: 22.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 24338.66ms. Allocated memory was 167.8MB in the beginning and 9.2GB in the end (delta: 9.0GB). Free memory was 75.6MB in the beginning and 6.7GB in the end (delta: -6.6GB). Peak memory consumption was 2.4GB. Max. memory is 16.1GB. * Witness Printer took 66.47ms. Allocated memory is still 9.2GB. Free memory was 6.7GB in the beginning and 6.7GB in the end (delta: 4.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 788]: 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 9 procedures, 79 locations, 6 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: 24.2s, OverallIterations: 13, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 22.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1227 SdHoareTripleChecker+Valid, 1.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1223 mSDsluCounter, 14 SdHoareTripleChecker+Invalid, 1.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 11 mSDsCounter, 38 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2516 IncrementalHoareTripleChecker+Invalid, 2554 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 38 mSolverCounterUnsat, 3 mSDtfsCounter, 2516 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 107 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=314occurred in iteration=10, InterpolantAutomatonStates: 88, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 316 NumberOfCodeBlocks, 316 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 303 ConstructedInterpolants, 0 QuantifiedInterpolants, 1105 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 13 InterpolantComputations, 13 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-02-08 08:26:51,271 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE