./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/pthread-wmm/safe025_pso.oepc_pso.opt_tso.oepc_tso.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version c00e63dc 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/safe025_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 9071d56f4666aca734ab742196d3aa15fce92ad6b7c276706d2cff43d2d6147a --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 12:50:38,547 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 12:50:38,601 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2025-02-06 12:50:38,606 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 12:50:38,607 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 12:50:38,626 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 12:50:38,627 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 12:50:38,627 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 12:50:38,628 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 12:50:38,628 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 12:50:38,628 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 12:50:38,628 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 12:50:38,629 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 12:50:38,629 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 12:50:38,629 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 12:50:38,629 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 12:50:38,629 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-06 12:50:38,629 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 12:50:38,630 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-06 12:50:38,630 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 12:50:38,630 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-02-06 12:50:38,630 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-02-06 12:50:38,630 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-02-06 12:50:38,630 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 12:50:38,630 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-06 12:50:38,630 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-06 12:50:38,630 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-06 12:50:38,630 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 12:50:38,630 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 12:50:38,630 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 12:50:38,631 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 12:50:38,631 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 12:50:38,631 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 12:50:38,631 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 12:50:38,631 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 12:50:38,631 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 12:50:38,632 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 12:50:38,632 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 12:50:38,632 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 12:50:38,632 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 12:50:38,632 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 12:50:38,632 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 12:50:38,632 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 -> 9071d56f4666aca734ab742196d3aa15fce92ad6b7c276706d2cff43d2d6147a [2025-02-06 12:50:38,882 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 12:50:38,889 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 12:50:38,891 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 12:50:38,892 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 12:50:38,893 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 12:50:38,894 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe025_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2025-02-06 12:50:40,073 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/c20f69792/cd5666923342469fb76d15616210593b/FLAG8629e0641 [2025-02-06 12:50:40,316 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 12:50:40,317 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe025_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2025-02-06 12:50:40,326 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/c20f69792/cd5666923342469fb76d15616210593b/FLAG8629e0641 [2025-02-06 12:50:40,336 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/c20f69792/cd5666923342469fb76d15616210593b [2025-02-06 12:50:40,338 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 12:50:40,339 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 12:50:40,339 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 12:50:40,340 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 12:50:40,342 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 12:50:40,343 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 12:50:40" (1/1) ... [2025-02-06 12:50:40,344 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43f0b479 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:50:40, skipping insertion in model container [2025-02-06 12:50:40,344 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 12:50:40" (1/1) ... [2025-02-06 12:50:40,363 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 12:50:40,622 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 12:50:40,632 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 12:50:40,673 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 12:50:40,696 INFO L204 MainTranslator]: Completed translation [2025-02-06 12:50:40,697 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:50:40 WrapperNode [2025-02-06 12:50:40,697 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 12:50:40,698 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 12:50:40,698 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 12:50:40,698 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 12:50:40,703 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:50:40" (1/1) ... [2025-02-06 12:50:40,713 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:50:40" (1/1) ... [2025-02-06 12:50:40,728 INFO L138 Inliner]: procedures = 175, calls = 44, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 60 [2025-02-06 12:50:40,729 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 12:50:40,729 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 12:50:40,729 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 12:50:40,730 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 12:50:40,738 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:50:40" (1/1) ... [2025-02-06 12:50:40,738 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:50:40" (1/1) ... [2025-02-06 12:50:40,740 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:50:40" (1/1) ... [2025-02-06 12:50:40,749 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]. [2025-02-06 12:50:40,749 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:50:40" (1/1) ... [2025-02-06 12:50:40,750 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:50:40" (1/1) ... [2025-02-06 12:50:40,752 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:50:40" (1/1) ... [2025-02-06 12:50:40,756 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:50:40" (1/1) ... [2025-02-06 12:50:40,757 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:50:40" (1/1) ... [2025-02-06 12:50:40,758 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:50:40" (1/1) ... [2025-02-06 12:50:40,759 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 12:50:40,759 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 12:50:40,759 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 12:50:40,760 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 12:50:40,760 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:50:40" (1/1) ... [2025-02-06 12:50:40,764 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 12:50:40,773 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 12:50:40,782 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) [2025-02-06 12:50:40,786 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 [2025-02-06 12:50:40,799 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-02-06 12:50:40,799 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 12:50:40,799 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2025-02-06 12:50:40,799 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2025-02-06 12:50:40,799 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2025-02-06 12:50:40,799 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2025-02-06 12:50:40,799 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2025-02-06 12:50:40,799 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2025-02-06 12:50:40,799 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-06 12:50:40,800 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-02-06 12:50:40,800 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 12:50:40,800 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 12:50:40,800 WARN L227 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-02-06 12:50:40,878 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 12:50:40,880 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 12:50:40,983 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-06 12:50:40,983 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 12:50:41,055 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 12:50:41,056 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 12:50:41,056 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 12:50:41 BoogieIcfgContainer [2025-02-06 12:50:41,056 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 12:50:41,059 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 12:50:41,059 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 12:50:41,062 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 12:50:41,062 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 12:50:40" (1/3) ... [2025-02-06 12:50:41,063 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c7fe9ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 12:50:41, skipping insertion in model container [2025-02-06 12:50:41,063 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:50:40" (2/3) ... [2025-02-06 12:50:41,064 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c7fe9ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 12:50:41, skipping insertion in model container [2025-02-06 12:50:41,064 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 12:50:41" (3/3) ... [2025-02-06 12:50:41,065 INFO L128 eAbstractionObserver]: Analyzing ICFG safe025_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2025-02-06 12:50:41,076 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 12:50:41,077 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG safe025_pso.oepc_pso.opt_tso.oepc_tso.opt.i that has 4 procedures, 43 locations, 1 initial locations, 0 loop locations, and 2 error locations. [2025-02-06 12:50:41,077 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-06 12:50:41,113 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-02-06 12:50:41,138 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 52 places, 44 transitions, 100 flow [2025-02-06 12:50:41,166 INFO L124 PetriNetUnfolderBase]: 2/41 cut-off events. [2025-02-06 12:50:41,170 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 12:50:41,175 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51 conditions, 41 events. 2/41 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 76 event pairs, 0 based on Foata normal form. 0/37 useless extension candidates. Maximal degree in co-relation 43. Up to 2 conditions per place. [2025-02-06 12:50:41,175 INFO L82 GeneralOperation]: Start removeDead. Operand has 52 places, 44 transitions, 100 flow [2025-02-06 12:50:41,177 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 48 places, 40 transitions, 89 flow [2025-02-06 12:50:41,184 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 12:50:41,191 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;@38872442, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 12:50:41,191 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2025-02-06 12:50:41,201 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-06 12:50:41,201 INFO L124 PetriNetUnfolderBase]: 2/38 cut-off events. [2025-02-06 12:50:41,201 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 12:50:41,201 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:50:41,202 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:50:41,202 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-02-06 12:50:41,205 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:50:41,205 INFO L85 PathProgramCache]: Analyzing trace with hash -33813954, now seen corresponding path program 1 times [2025-02-06 12:50:41,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 12:50:41,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431035593] [2025-02-06 12:50:41,210 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:50:41,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 12:50:41,269 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-02-06 12:50:41,287 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-02-06 12:50:41,287 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:50:41,287 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:50:41,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:50:41,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 12:50:41,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431035593] [2025-02-06 12:50:41,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [431035593] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:50:41,401 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:50:41,402 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-06 12:50:41,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423432117] [2025-02-06 12:50:41,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:50:41,407 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 12:50:41,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 12:50:41,426 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 12:50:41,426 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 12:50:41,427 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 44 [2025-02-06 12:50:41,430 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 40 transitions, 89 flow. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:50:41,431 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:50:41,431 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 44 [2025-02-06 12:50:41,431 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:50:42,077 INFO L124 PetriNetUnfolderBase]: 5627/8717 cut-off events. [2025-02-06 12:50:42,078 INFO L125 PetriNetUnfolderBase]: For 43/43 co-relation queries the response was YES. [2025-02-06 12:50:42,097 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16816 conditions, 8717 events. 5627/8717 cut-off events. For 43/43 co-relation queries the response was YES. Maximal size of possible extension queue 325. Compared 52002 event pairs, 5627 based on Foata normal form. 756/9420 useless extension candidates. Maximal degree in co-relation 16805. Up to 7994 conditions per place. [2025-02-06 12:50:42,136 INFO L140 encePairwiseOnDemand]: 40/44 looper letters, 28 selfloop transitions, 1 changer transitions 1/36 dead transitions. [2025-02-06 12:50:42,136 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 36 transitions, 141 flow [2025-02-06 12:50:42,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 12:50:42,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 12:50:42,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 60 transitions. [2025-02-06 12:50:42,147 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.45454545454545453 [2025-02-06 12:50:42,148 INFO L175 Difference]: Start difference. First operand has 48 places, 40 transitions, 89 flow. Second operand 3 states and 60 transitions. [2025-02-06 12:50:42,149 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 36 transitions, 141 flow [2025-02-06 12:50:42,153 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 36 transitions, 138 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-02-06 12:50:42,156 INFO L231 Difference]: Finished difference. Result has 45 places, 35 transitions, 78 flow [2025-02-06 12:50:42,157 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=78, PETRI_PLACES=45, PETRI_TRANSITIONS=35} [2025-02-06 12:50:42,161 INFO L279 CegarLoopForPetriNet]: 48 programPoint places, -3 predicate places. [2025-02-06 12:50:42,161 INFO L471 AbstractCegarLoop]: Abstraction has has 45 places, 35 transitions, 78 flow [2025-02-06 12:50:42,161 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:50:42,161 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:50:42,161 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:50:42,162 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-06 12:50:42,163 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-02-06 12:50:42,164 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:50:42,164 INFO L85 PathProgramCache]: Analyzing trace with hash -33813512, now seen corresponding path program 1 times [2025-02-06 12:50:42,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 12:50:42,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434281617] [2025-02-06 12:50:42,164 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:50:42,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 12:50:42,177 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-02-06 12:50:42,194 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-02-06 12:50:42,194 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:50:42,194 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:50:42,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:50:42,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 12:50:42,488 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434281617] [2025-02-06 12:50:42,488 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [434281617] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:50:42,488 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:50:42,488 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 12:50:42,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636599446] [2025-02-06 12:50:42,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:50:42,489 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 12:50:42,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 12:50:42,490 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 12:50:42,490 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-06 12:50:42,493 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 44 [2025-02-06 12:50:42,493 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 35 transitions, 78 flow. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:50:42,493 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:50:42,493 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 44 [2025-02-06 12:50:42,493 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:50:43,677 INFO L124 PetriNetUnfolderBase]: 11299/16695 cut-off events. [2025-02-06 12:50:43,677 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 12:50:43,703 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33041 conditions, 16695 events. 11299/16695 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 627. Compared 103308 event pairs, 2611 based on Foata normal form. 0/16295 useless extension candidates. Maximal degree in co-relation 33035. Up to 6764 conditions per place. [2025-02-06 12:50:43,746 INFO L140 encePairwiseOnDemand]: 34/44 looper letters, 47 selfloop transitions, 6 changer transitions 103/161 dead transitions. [2025-02-06 12:50:43,746 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 161 transitions, 644 flow [2025-02-06 12:50:43,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-02-06 12:50:43,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-02-06 12:50:43,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 239 transitions. [2025-02-06 12:50:43,749 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6035353535353535 [2025-02-06 12:50:43,750 INFO L175 Difference]: Start difference. First operand has 45 places, 35 transitions, 78 flow. Second operand 9 states and 239 transitions. [2025-02-06 12:50:43,750 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 161 transitions, 644 flow [2025-02-06 12:50:43,751 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 161 transitions, 643 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-06 12:50:43,755 INFO L231 Difference]: Finished difference. Result has 59 places, 39 transitions, 159 flow [2025-02-06 12:50:43,756 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=77, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=159, PETRI_PLACES=59, PETRI_TRANSITIONS=39} [2025-02-06 12:50:43,756 INFO L279 CegarLoopForPetriNet]: 48 programPoint places, 11 predicate places. [2025-02-06 12:50:43,757 INFO L471 AbstractCegarLoop]: Abstraction has has 59 places, 39 transitions, 159 flow [2025-02-06 12:50:43,757 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:50:43,757 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:50:43,757 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:50:43,757 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-06 12:50:43,757 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-02-06 12:50:43,758 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:50:43,758 INFO L85 PathProgramCache]: Analyzing trace with hash 2061296695, now seen corresponding path program 1 times [2025-02-06 12:50:43,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 12:50:43,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943461809] [2025-02-06 12:50:43,759 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:50:43,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 12:50:43,773 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-02-06 12:50:43,781 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-02-06 12:50:43,783 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:50:43,783 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:50:43,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:50:43,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 12:50:43,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [943461809] [2025-02-06 12:50:43,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [943461809] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:50:43,949 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:50:43,949 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 12:50:43,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276979262] [2025-02-06 12:50:43,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:50:43,950 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 12:50:43,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 12:50:43,950 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 12:50:43,950 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-02-06 12:50:43,952 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 44 [2025-02-06 12:50:43,953 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 39 transitions, 159 flow. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:50:43,953 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:50:43,953 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 44 [2025-02-06 12:50:43,953 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:50:44,900 INFO L124 PetriNetUnfolderBase]: 8397/12588 cut-off events. [2025-02-06 12:50:44,901 INFO L125 PetriNetUnfolderBase]: For 13658/13661 co-relation queries the response was YES. [2025-02-06 12:50:44,925 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34577 conditions, 12588 events. 8397/12588 cut-off events. For 13658/13661 co-relation queries the response was YES. Maximal size of possible extension queue 436. Compared 74533 event pairs, 1860 based on Foata normal form. 338/12919 useless extension candidates. Maximal degree in co-relation 34562. Up to 5974 conditions per place. [2025-02-06 12:50:44,960 INFO L140 encePairwiseOnDemand]: 35/44 looper letters, 65 selfloop transitions, 7 changer transitions 86/163 dead transitions. [2025-02-06 12:50:44,960 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 163 transitions, 905 flow [2025-02-06 12:50:44,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-06 12:50:44,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-02-06 12:50:44,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 244 transitions. [2025-02-06 12:50:44,964 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5545454545454546 [2025-02-06 12:50:44,964 INFO L175 Difference]: Start difference. First operand has 59 places, 39 transitions, 159 flow. Second operand 10 states and 244 transitions. [2025-02-06 12:50:44,964 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 163 transitions, 905 flow [2025-02-06 12:50:45,005 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 163 transitions, 829 flow, removed 17 selfloop flow, removed 4 redundant places. [2025-02-06 12:50:45,007 INFO L231 Difference]: Finished difference. Result has 66 places, 42 transitions, 205 flow [2025-02-06 12:50:45,007 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=137, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=205, PETRI_PLACES=66, PETRI_TRANSITIONS=42} [2025-02-06 12:50:45,008 INFO L279 CegarLoopForPetriNet]: 48 programPoint places, 18 predicate places. [2025-02-06 12:50:45,008 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 42 transitions, 205 flow [2025-02-06 12:50:45,009 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:50:45,009 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:50:45,009 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:50:45,009 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-06 12:50:45,009 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-02-06 12:50:45,010 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:50:45,010 INFO L85 PathProgramCache]: Analyzing trace with hash -1308107868, now seen corresponding path program 1 times [2025-02-06 12:50:45,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 12:50:45,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414354725] [2025-02-06 12:50:45,011 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:50:45,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 12:50:45,021 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-02-06 12:50:45,029 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-02-06 12:50:45,031 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:50:45,031 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:50:45,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:50:45,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 12:50:45,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1414354725] [2025-02-06 12:50:45,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1414354725] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:50:45,191 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:50:45,191 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 12:50:45,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819341060] [2025-02-06 12:50:45,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:50:45,192 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 12:50:45,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 12:50:45,193 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 12:50:45,193 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-02-06 12:50:45,194 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 44 [2025-02-06 12:50:45,194 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 42 transitions, 205 flow. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:50:45,195 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:50:45,195 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 44 [2025-02-06 12:50:45,195 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:50:46,078 INFO L124 PetriNetUnfolderBase]: 7747/11605 cut-off events. [2025-02-06 12:50:46,078 INFO L125 PetriNetUnfolderBase]: For 23468/23474 co-relation queries the response was YES. [2025-02-06 12:50:46,100 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34405 conditions, 11605 events. 7747/11605 cut-off events. For 23468/23474 co-relation queries the response was YES. Maximal size of possible extension queue 385. Compared 67074 event pairs, 1040 based on Foata normal form. 264/11858 useless extension candidates. Maximal degree in co-relation 34383. Up to 5591 conditions per place. [2025-02-06 12:50:46,126 INFO L140 encePairwiseOnDemand]: 35/44 looper letters, 60 selfloop transitions, 10 changer transitions 72/147 dead transitions. [2025-02-06 12:50:46,126 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 147 transitions, 853 flow [2025-02-06 12:50:46,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-06 12:50:46,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-02-06 12:50:46,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 228 transitions. [2025-02-06 12:50:46,128 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5181818181818182 [2025-02-06 12:50:46,128 INFO L175 Difference]: Start difference. First operand has 66 places, 42 transitions, 205 flow. Second operand 10 states and 228 transitions. [2025-02-06 12:50:46,128 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 147 transitions, 853 flow [2025-02-06 12:50:46,247 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 147 transitions, 787 flow, removed 31 selfloop flow, removed 3 redundant places. [2025-02-06 12:50:46,248 INFO L231 Difference]: Finished difference. Result has 75 places, 44 transitions, 262 flow [2025-02-06 12:50:46,248 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=184, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=262, PETRI_PLACES=75, PETRI_TRANSITIONS=44} [2025-02-06 12:50:46,249 INFO L279 CegarLoopForPetriNet]: 48 programPoint places, 27 predicate places. [2025-02-06 12:50:46,249 INFO L471 AbstractCegarLoop]: Abstraction has has 75 places, 44 transitions, 262 flow [2025-02-06 12:50:46,249 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:50:46,249 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:50:46,249 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:50:46,249 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-06 12:50:46,249 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-02-06 12:50:46,250 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:50:46,250 INFO L85 PathProgramCache]: Analyzing trace with hash 1661339510, now seen corresponding path program 1 times [2025-02-06 12:50:46,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 12:50:46,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [946205854] [2025-02-06 12:50:46,250 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:50:46,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 12:50:46,255 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-02-06 12:50:46,259 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-02-06 12:50:46,259 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:50:46,259 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:50:46,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:50:46,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 12:50:46,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [946205854] [2025-02-06 12:50:46,348 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [946205854] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:50:46,348 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:50:46,348 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-06 12:50:46,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452466424] [2025-02-06 12:50:46,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:50:46,349 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 12:50:46,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 12:50:46,349 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 12:50:46,349 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-02-06 12:50:46,350 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 44 [2025-02-06 12:50:46,351 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 44 transitions, 262 flow. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:50:46,351 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:50:46,351 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 44 [2025-02-06 12:50:46,351 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:50:47,185 INFO L124 PetriNetUnfolderBase]: 7393/11035 cut-off events. [2025-02-06 12:50:47,186 INFO L125 PetriNetUnfolderBase]: For 23646/23649 co-relation queries the response was YES. [2025-02-06 12:50:47,211 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34073 conditions, 11035 events. 7393/11035 cut-off events. For 23646/23649 co-relation queries the response was YES. Maximal size of possible extension queue 345. Compared 63270 event pairs, 1720 based on Foata normal form. 275/11303 useless extension candidates. Maximal degree in co-relation 34043. Up to 5179 conditions per place. [2025-02-06 12:50:47,265 INFO L140 encePairwiseOnDemand]: 35/44 looper letters, 64 selfloop transitions, 13 changer transitions 76/158 dead transitions. [2025-02-06 12:50:47,265 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 158 transitions, 1024 flow [2025-02-06 12:50:47,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-06 12:50:47,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-02-06 12:50:47,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 234 transitions. [2025-02-06 12:50:47,267 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5318181818181819 [2025-02-06 12:50:47,269 INFO L175 Difference]: Start difference. First operand has 75 places, 44 transitions, 262 flow. Second operand 10 states and 234 transitions. [2025-02-06 12:50:47,269 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 158 transitions, 1024 flow [2025-02-06 12:50:47,376 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 158 transitions, 955 flow, removed 32 selfloop flow, removed 11 redundant places. [2025-02-06 12:50:47,380 INFO L231 Difference]: Finished difference. Result has 76 places, 47 transitions, 343 flow [2025-02-06 12:50:47,381 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=228, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=343, PETRI_PLACES=76, PETRI_TRANSITIONS=47} [2025-02-06 12:50:47,382 INFO L279 CegarLoopForPetriNet]: 48 programPoint places, 28 predicate places. [2025-02-06 12:50:47,382 INFO L471 AbstractCegarLoop]: Abstraction has has 76 places, 47 transitions, 343 flow [2025-02-06 12:50:47,383 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:50:47,383 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:50:47,383 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] [2025-02-06 12:50:47,383 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-06 12:50:47,383 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-02-06 12:50:47,384 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:50:47,384 INFO L85 PathProgramCache]: Analyzing trace with hash 1551044633, now seen corresponding path program 1 times [2025-02-06 12:50:47,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 12:50:47,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751070489] [2025-02-06 12:50:47,384 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:50:47,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 12:50:47,394 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-02-06 12:50:47,402 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-02-06 12:50:47,402 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:50:47,402 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:50:47,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:50:47,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 12:50:47,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1751070489] [2025-02-06 12:50:47,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1751070489] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:50:47,478 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:50:47,478 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 12:50:47,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438230434] [2025-02-06 12:50:47,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:50:47,478 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 12:50:47,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 12:50:47,479 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 12:50:47,479 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 12:50:47,479 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 44 [2025-02-06 12:50:47,480 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 47 transitions, 343 flow. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:50:47,480 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:50:47,480 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 44 [2025-02-06 12:50:47,480 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:50:48,031 INFO L124 PetriNetUnfolderBase]: 5524/8561 cut-off events. [2025-02-06 12:50:48,032 INFO L125 PetriNetUnfolderBase]: For 27910/27916 co-relation queries the response was YES. [2025-02-06 12:50:48,048 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27492 conditions, 8561 events. 5524/8561 cut-off events. For 27910/27916 co-relation queries the response was YES. Maximal size of possible extension queue 302. Compared 49658 event pairs, 907 based on Foata normal form. 403/8953 useless extension candidates. Maximal degree in co-relation 27462. Up to 4355 conditions per place. [2025-02-06 12:50:48,069 INFO L140 encePairwiseOnDemand]: 38/44 looper letters, 97 selfloop transitions, 5 changer transitions 1/108 dead transitions. [2025-02-06 12:50:48,069 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 108 transitions, 1087 flow [2025-02-06 12:50:48,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 12:50:48,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-06 12:50:48,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 106 transitions. [2025-02-06 12:50:48,070 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6022727272727273 [2025-02-06 12:50:48,070 INFO L175 Difference]: Start difference. First operand has 76 places, 47 transitions, 343 flow. Second operand 4 states and 106 transitions. [2025-02-06 12:50:48,070 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 108 transitions, 1087 flow [2025-02-06 12:50:48,112 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 108 transitions, 1048 flow, removed 12 selfloop flow, removed 5 redundant places. [2025-02-06 12:50:48,113 INFO L231 Difference]: Finished difference. Result has 70 places, 50 transitions, 356 flow [2025-02-06 12:50:48,114 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=322, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=356, PETRI_PLACES=70, PETRI_TRANSITIONS=50} [2025-02-06 12:50:48,114 INFO L279 CegarLoopForPetriNet]: 48 programPoint places, 22 predicate places. [2025-02-06 12:50:48,114 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 50 transitions, 356 flow [2025-02-06 12:50:48,114 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:50:48,114 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:50:48,114 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:50:48,115 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-02-06 12:50:48,115 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-02-06 12:50:48,115 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:50:48,115 INFO L85 PathProgramCache]: Analyzing trace with hash -791084464, now seen corresponding path program 1 times [2025-02-06 12:50:48,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 12:50:48,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445977252] [2025-02-06 12:50:48,115 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:50:48,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 12:50:48,120 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-02-06 12:50:48,124 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-02-06 12:50:48,125 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:50:48,125 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:50:48,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:50:48,208 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 12:50:48,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1445977252] [2025-02-06 12:50:48,208 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1445977252] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:50:48,208 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:50:48,208 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 12:50:48,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787342505] [2025-02-06 12:50:48,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:50:48,209 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 12:50:48,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 12:50:48,209 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 12:50:48,209 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-02-06 12:50:48,210 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 44 [2025-02-06 12:50:48,210 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 50 transitions, 356 flow. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:50:48,210 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:50:48,210 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 44 [2025-02-06 12:50:48,210 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:50:48,585 INFO L124 PetriNetUnfolderBase]: 3321/5181 cut-off events. [2025-02-06 12:50:48,586 INFO L125 PetriNetUnfolderBase]: For 14812/14818 co-relation queries the response was YES. [2025-02-06 12:50:48,599 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17461 conditions, 5181 events. 3321/5181 cut-off events. For 14812/14818 co-relation queries the response was YES. Maximal size of possible extension queue 166. Compared 27227 event pairs, 517 based on Foata normal form. 286/5456 useless extension candidates. Maximal degree in co-relation 17431. Up to 1741 conditions per place. [2025-02-06 12:50:48,613 INFO L140 encePairwiseOnDemand]: 38/44 looper letters, 107 selfloop transitions, 8 changer transitions 2/122 dead transitions. [2025-02-06 12:50:48,613 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 122 transitions, 1140 flow [2025-02-06 12:50:48,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-06 12:50:48,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-02-06 12:50:48,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 135 transitions. [2025-02-06 12:50:48,614 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6136363636363636 [2025-02-06 12:50:48,614 INFO L175 Difference]: Start difference. First operand has 70 places, 50 transitions, 356 flow. Second operand 5 states and 135 transitions. [2025-02-06 12:50:48,614 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 122 transitions, 1140 flow [2025-02-06 12:50:48,626 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 122 transitions, 1114 flow, removed 9 selfloop flow, removed 6 redundant places. [2025-02-06 12:50:48,627 INFO L231 Difference]: Finished difference. Result has 70 places, 53 transitions, 388 flow [2025-02-06 12:50:48,627 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=340, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=388, PETRI_PLACES=70, PETRI_TRANSITIONS=53} [2025-02-06 12:50:48,627 INFO L279 CegarLoopForPetriNet]: 48 programPoint places, 22 predicate places. [2025-02-06 12:50:48,627 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 53 transitions, 388 flow [2025-02-06 12:50:48,628 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:50:48,628 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:50:48,628 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] [2025-02-06 12:50:48,628 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-02-06 12:50:48,628 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-02-06 12:50:48,628 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:50:48,628 INFO L85 PathProgramCache]: Analyzing trace with hash 1841795496, now seen corresponding path program 1 times [2025-02-06 12:50:48,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 12:50:48,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126525374] [2025-02-06 12:50:48,628 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:50:48,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 12:50:48,634 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-02-06 12:50:48,641 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-02-06 12:50:48,641 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:50:48,641 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:50:48,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:50:48,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 12:50:48,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [126525374] [2025-02-06 12:50:48,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [126525374] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:50:48,729 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:50:48,729 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 12:50:48,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241059519] [2025-02-06 12:50:48,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:50:48,730 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 12:50:48,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 12:50:48,730 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 12:50:48,731 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2025-02-06 12:50:48,731 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 44 [2025-02-06 12:50:48,731 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 53 transitions, 388 flow. Second operand has 6 states, 6 states have (on average 13.5) internal successors, (81), 6 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) [2025-02-06 12:50:48,731 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:50:48,731 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 44 [2025-02-06 12:50:48,732 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:50:49,024 INFO L124 PetriNetUnfolderBase]: 2108/3250 cut-off events. [2025-02-06 12:50:49,025 INFO L125 PetriNetUnfolderBase]: For 11017/11023 co-relation queries the response was YES. [2025-02-06 12:50:49,039 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11887 conditions, 3250 events. 2108/3250 cut-off events. For 11017/11023 co-relation queries the response was YES. Maximal size of possible extension queue 127. Compared 15596 event pairs, 418 based on Foata normal form. 108/3347 useless extension candidates. Maximal degree in co-relation 11859. Up to 1210 conditions per place. [2025-02-06 12:50:49,051 INFO L140 encePairwiseOnDemand]: 38/44 looper letters, 89 selfloop transitions, 11 changer transitions 4/109 dead transitions. [2025-02-06 12:50:49,051 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 109 transitions, 1001 flow [2025-02-06 12:50:49,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 12:50:49,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-06 12:50:49,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 136 transitions. [2025-02-06 12:50:49,053 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5151515151515151 [2025-02-06 12:50:49,053 INFO L175 Difference]: Start difference. First operand has 70 places, 53 transitions, 388 flow. Second operand 6 states and 136 transitions. [2025-02-06 12:50:49,054 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 109 transitions, 1001 flow [2025-02-06 12:50:49,074 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 109 transitions, 934 flow, removed 9 selfloop flow, removed 7 redundant places. [2025-02-06 12:50:49,076 INFO L231 Difference]: Finished difference. Result has 70 places, 53 transitions, 379 flow [2025-02-06 12:50:49,077 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=343, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=379, PETRI_PLACES=70, PETRI_TRANSITIONS=53} [2025-02-06 12:50:49,077 INFO L279 CegarLoopForPetriNet]: 48 programPoint places, 22 predicate places. [2025-02-06 12:50:49,079 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 53 transitions, 379 flow [2025-02-06 12:50:49,079 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 6 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) [2025-02-06 12:50:49,079 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:50:49,079 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] [2025-02-06 12:50:49,079 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-02-06 12:50:49,080 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-02-06 12:50:49,080 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:50:49,080 INFO L85 PathProgramCache]: Analyzing trace with hash 486956635, now seen corresponding path program 1 times [2025-02-06 12:50:49,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 12:50:49,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1077879535] [2025-02-06 12:50:49,080 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:50:49,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 12:50:49,088 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 31 statements into 1 equivalence classes. [2025-02-06 12:50:49,094 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 31 of 31 statements. [2025-02-06 12:50:49,095 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:50:49,095 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:50:49,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:50:49,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 12:50:49,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1077879535] [2025-02-06 12:50:49,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1077879535] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:50:49,272 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:50:49,272 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-06 12:50:49,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396572041] [2025-02-06 12:50:49,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:50:49,272 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 12:50:49,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 12:50:49,273 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 12:50:49,273 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-06 12:50:49,281 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 44 [2025-02-06 12:50:49,281 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 53 transitions, 379 flow. Second operand has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 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) [2025-02-06 12:50:49,281 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:50:49,282 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 44 [2025-02-06 12:50:49,282 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:50:49,589 INFO L124 PetriNetUnfolderBase]: 2824/4349 cut-off events. [2025-02-06 12:50:49,589 INFO L125 PetriNetUnfolderBase]: For 13076/13076 co-relation queries the response was YES. [2025-02-06 12:50:49,597 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15122 conditions, 4349 events. 2824/4349 cut-off events. For 13076/13076 co-relation queries the response was YES. Maximal size of possible extension queue 178. Compared 22140 event pairs, 610 based on Foata normal form. 8/4353 useless extension candidates. Maximal degree in co-relation 15096. Up to 2404 conditions per place. [2025-02-06 12:50:49,601 INFO L140 encePairwiseOnDemand]: 39/44 looper letters, 45 selfloop transitions, 1 changer transitions 61/112 dead transitions. [2025-02-06 12:50:49,601 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 112 transitions, 977 flow [2025-02-06 12:50:49,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 12:50:49,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-06 12:50:49,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 124 transitions. [2025-02-06 12:50:49,602 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4696969696969697 [2025-02-06 12:50:49,602 INFO L175 Difference]: Start difference. First operand has 70 places, 53 transitions, 379 flow. Second operand 6 states and 124 transitions. [2025-02-06 12:50:49,602 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 112 transitions, 977 flow [2025-02-06 12:50:49,624 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 112 transitions, 832 flow, removed 30 selfloop flow, removed 10 redundant places. [2025-02-06 12:50:49,625 INFO L231 Difference]: Finished difference. Result has 69 places, 45 transitions, 230 flow [2025-02-06 12:50:49,625 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=315, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=230, PETRI_PLACES=69, PETRI_TRANSITIONS=45} [2025-02-06 12:50:49,626 INFO L279 CegarLoopForPetriNet]: 48 programPoint places, 21 predicate places. [2025-02-06 12:50:49,626 INFO L471 AbstractCegarLoop]: Abstraction has has 69 places, 45 transitions, 230 flow [2025-02-06 12:50:49,626 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 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) [2025-02-06 12:50:49,626 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:50:49,626 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] [2025-02-06 12:50:49,626 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-02-06 12:50:49,626 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-02-06 12:50:49,626 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:50:49,626 INFO L85 PathProgramCache]: Analyzing trace with hash -594569119, now seen corresponding path program 2 times [2025-02-06 12:50:49,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 12:50:49,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135380819] [2025-02-06 12:50:49,627 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 12:50:49,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 12:50:49,631 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 31 statements into 1 equivalence classes. [2025-02-06 12:50:49,635 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 31 of 31 statements. [2025-02-06 12:50:49,635 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-06 12:50:49,635 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:50:49,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:50:49,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 12:50:49,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1135380819] [2025-02-06 12:50:49,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1135380819] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:50:49,718 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:50:49,718 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-06 12:50:49,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670298687] [2025-02-06 12:50:49,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:50:49,718 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 12:50:49,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 12:50:49,719 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 12:50:49,719 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-06 12:50:49,721 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 44 [2025-02-06 12:50:49,721 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 45 transitions, 230 flow. Second operand has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 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) [2025-02-06 12:50:49,721 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:50:49,721 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 44 [2025-02-06 12:50:49,721 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:50:49,917 INFO L124 PetriNetUnfolderBase]: 1366/2237 cut-off events. [2025-02-06 12:50:49,917 INFO L125 PetriNetUnfolderBase]: For 2954/2957 co-relation queries the response was YES. [2025-02-06 12:50:49,922 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6451 conditions, 2237 events. 1366/2237 cut-off events. For 2954/2957 co-relation queries the response was YES. Maximal size of possible extension queue 87. Compared 10540 event pairs, 707 based on Foata normal form. 8/2238 useless extension candidates. Maximal degree in co-relation 6428. Up to 1153 conditions per place. [2025-02-06 12:50:49,925 INFO L140 encePairwiseOnDemand]: 38/44 looper letters, 47 selfloop transitions, 3 changer transitions 45/100 dead transitions. [2025-02-06 12:50:49,925 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 100 transitions, 609 flow [2025-02-06 12:50:49,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-06 12:50:49,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-02-06 12:50:49,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 140 transitions. [2025-02-06 12:50:49,926 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.45454545454545453 [2025-02-06 12:50:49,926 INFO L175 Difference]: Start difference. First operand has 69 places, 45 transitions, 230 flow. Second operand 7 states and 140 transitions. [2025-02-06 12:50:49,926 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 100 transitions, 609 flow [2025-02-06 12:50:49,929 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 100 transitions, 543 flow, removed 10 selfloop flow, removed 10 redundant places. [2025-02-06 12:50:49,930 INFO L231 Difference]: Finished difference. Result has 65 places, 44 transitions, 186 flow [2025-02-06 12:50:49,930 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=181, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=186, PETRI_PLACES=65, PETRI_TRANSITIONS=44} [2025-02-06 12:50:49,930 INFO L279 CegarLoopForPetriNet]: 48 programPoint places, 17 predicate places. [2025-02-06 12:50:49,930 INFO L471 AbstractCegarLoop]: Abstraction has has 65 places, 44 transitions, 186 flow [2025-02-06 12:50:49,930 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 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) [2025-02-06 12:50:49,930 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:50:49,930 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] [2025-02-06 12:50:49,931 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-02-06 12:50:49,931 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-02-06 12:50:49,931 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:50:49,931 INFO L85 PathProgramCache]: Analyzing trace with hash -484238365, now seen corresponding path program 3 times [2025-02-06 12:50:49,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 12:50:49,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425602871] [2025-02-06 12:50:49,931 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-06 12:50:49,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 12:50:49,936 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 31 statements into 1 equivalence classes. [2025-02-06 12:50:49,939 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 31 of 31 statements. [2025-02-06 12:50:49,939 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-02-06 12:50:49,939 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:50:50,006 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:50:50,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 12:50:50,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425602871] [2025-02-06 12:50:50,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [425602871] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:50:50,007 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:50:50,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 12:50:50,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974857016] [2025-02-06 12:50:50,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:50:50,007 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 12:50:50,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 12:50:50,008 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 12:50:50,008 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-06 12:50:50,008 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 44 [2025-02-06 12:50:50,009 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 44 transitions, 186 flow. Second operand has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 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) [2025-02-06 12:50:50,009 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:50:50,009 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 44 [2025-02-06 12:50:50,009 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:50:50,125 INFO L124 PetriNetUnfolderBase]: 913/1482 cut-off events. [2025-02-06 12:50:50,126 INFO L125 PetriNetUnfolderBase]: For 1106/1109 co-relation queries the response was YES. [2025-02-06 12:50:50,128 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4076 conditions, 1482 events. 913/1482 cut-off events. For 1106/1109 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 6462 event pairs, 147 based on Foata normal form. 8/1483 useless extension candidates. Maximal degree in co-relation 4066. Up to 1200 conditions per place. [2025-02-06 12:50:50,129 INFO L140 encePairwiseOnDemand]: 39/44 looper letters, 0 selfloop transitions, 0 changer transitions 62/62 dead transitions. [2025-02-06 12:50:50,129 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 62 transitions, 356 flow [2025-02-06 12:50:50,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 12:50:50,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-06 12:50:50,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 102 transitions. [2025-02-06 12:50:50,130 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.38636363636363635 [2025-02-06 12:50:50,130 INFO L175 Difference]: Start difference. First operand has 65 places, 44 transitions, 186 flow. Second operand 6 states and 102 transitions. [2025-02-06 12:50:50,130 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 62 transitions, 356 flow [2025-02-06 12:50:50,131 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 62 transitions, 346 flow, removed 2 selfloop flow, removed 4 redundant places. [2025-02-06 12:50:50,132 INFO L231 Difference]: Finished difference. Result has 59 places, 0 transitions, 0 flow [2025-02-06 12:50:50,132 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=168, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=59, PETRI_TRANSITIONS=0} [2025-02-06 12:50:50,132 INFO L279 CegarLoopForPetriNet]: 48 programPoint places, 11 predicate places. [2025-02-06 12:50:50,132 INFO L471 AbstractCegarLoop]: Abstraction has has 59 places, 0 transitions, 0 flow [2025-02-06 12:50:50,133 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 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) [2025-02-06 12:50:50,135 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (4 of 5 remaining) [2025-02-06 12:50:50,136 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (3 of 5 remaining) [2025-02-06 12:50:50,136 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2025-02-06 12:50:50,136 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2025-02-06 12:50:50,136 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2025-02-06 12:50:50,136 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-02-06 12:50:50,137 INFO L422 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:50:50,140 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-02-06 12:50:50,140 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-06 12:50:50,144 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.02 12:50:50 BasicIcfg [2025-02-06 12:50:50,145 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-06 12:50:50,145 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-06 12:50:50,145 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-06 12:50:50,146 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-06 12:50:50,146 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 12:50:41" (3/4) ... [2025-02-06 12:50:50,148 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-02-06 12:50:50,151 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure P0 [2025-02-06 12:50:50,151 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure P1 [2025-02-06 12:50:50,151 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure P2 [2025-02-06 12:50:50,154 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 29 nodes and edges [2025-02-06 12:50:50,154 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2025-02-06 12:50:50,154 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2025-02-06 12:50:50,154 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2025-02-06 12:50:50,211 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-02-06 12:50:50,211 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-02-06 12:50:50,211 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-06 12:50:50,212 INFO L158 Benchmark]: Toolchain (without parser) took 9873.19ms. Allocated memory was 142.6MB in the beginning and 956.3MB in the end (delta: 813.7MB). Free memory was 112.0MB in the beginning and 388.1MB in the end (delta: -276.0MB). Peak memory consumption was 537.4MB. Max. memory is 16.1GB. [2025-02-06 12:50:50,212 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 226.5MB. Free memory is still 148.7MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 12:50:50,212 INFO L158 Benchmark]: CACSL2BoogieTranslator took 358.19ms. Allocated memory is still 142.6MB. Free memory was 112.0MB in the beginning and 91.7MB in the end (delta: 20.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-06 12:50:50,213 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.90ms. Allocated memory is still 142.6MB. Free memory was 91.7MB in the beginning and 90.3MB in the end (delta: 1.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-06 12:50:50,214 INFO L158 Benchmark]: Boogie Preprocessor took 29.49ms. Allocated memory is still 142.6MB. Free memory was 90.3MB in the beginning and 88.8MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 12:50:50,214 INFO L158 Benchmark]: IcfgBuilder took 296.63ms. Allocated memory is still 142.6MB. Free memory was 88.3MB in the beginning and 69.0MB in the end (delta: 19.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-06 12:50:50,214 INFO L158 Benchmark]: TraceAbstraction took 9086.01ms. Allocated memory was 142.6MB in the beginning and 956.3MB in the end (delta: 813.7MB). Free memory was 68.5MB in the beginning and 396.4MB in the end (delta: -327.8MB). Peak memory consumption was 487.1MB. Max. memory is 16.1GB. [2025-02-06 12:50:50,215 INFO L158 Benchmark]: Witness Printer took 65.90ms. Allocated memory is still 956.3MB. Free memory was 396.4MB in the beginning and 388.1MB in the end (delta: 8.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-06 12:50:50,216 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 226.5MB. Free memory is still 148.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 358.19ms. Allocated memory is still 142.6MB. Free memory was 112.0MB in the beginning and 91.7MB in the end (delta: 20.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.90ms. Allocated memory is still 142.6MB. Free memory was 91.7MB in the beginning and 90.3MB in the end (delta: 1.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.49ms. Allocated memory is still 142.6MB. Free memory was 90.3MB in the beginning and 88.8MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 296.63ms. Allocated memory is still 142.6MB. Free memory was 88.3MB in the beginning and 69.0MB in the end (delta: 19.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 9086.01ms. Allocated memory was 142.6MB in the beginning and 956.3MB in the end (delta: 813.7MB). Free memory was 68.5MB in the beginning and 396.4MB in the end (delta: -327.8MB). Peak memory consumption was 487.1MB. Max. memory is 16.1GB. * Witness Printer took 65.90ms. Allocated memory is still 956.3MB. Free memory was 396.4MB in the beginning and 388.1MB in the end (delta: 8.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 778]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 17]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 68 locations, 5 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 9.0s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 7.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 759 SdHoareTripleChecker+Valid, 1.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 758 mSDsluCounter, 10 SdHoareTripleChecker+Invalid, 1.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 8 mSDsCounter, 31 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2073 IncrementalHoareTripleChecker+Invalid, 2104 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 31 mSolverCounterUnsat, 2 mSDtfsCounter, 2073 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 84 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=388occurred in iteration=7, InterpolantAutomatonStates: 76, 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, 1.4s InterpolantComputationTime, 244 NumberOfCodeBlocks, 244 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 233 ConstructedInterpolants, 0 QuantifiedInterpolants, 845 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-02-06 12:50:50,236 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