./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/pthread-wmm/safe020_pso.oepc_pso.opt_tso.oepc_tso.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 48c9605d Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/pthread-wmm/safe020_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 8e0b8e6efb6fc18f3ca2ba094d3acbfc6a07fbc0100e70485e3a3a84ea56105b --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 08:25:45,133 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 08:25:45,186 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2025-02-08 08:25:45,191 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 08:25:45,191 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 08:25:45,209 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 08:25:45,210 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 08:25:45,210 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 08:25:45,210 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 08:25:45,210 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 08:25:45,210 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 08:25:45,210 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 08:25:45,210 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 08:25:45,210 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 08:25:45,210 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 08:25:45,210 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 08:25:45,211 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-08 08:25:45,211 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 08:25:45,211 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-08 08:25:45,211 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 08:25:45,211 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-02-08 08:25:45,211 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-02-08 08:25:45,211 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-02-08 08:25:45,211 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 08:25:45,211 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-08 08:25:45,211 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-08 08:25:45,211 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-08 08:25:45,211 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 08:25:45,211 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 08:25:45,211 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 08:25:45,211 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 08:25:45,211 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 08:25:45,211 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 08:25:45,211 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 08:25:45,211 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 08:25:45,212 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 08:25:45,212 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 08:25:45,212 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 08:25:45,212 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 08:25:45,212 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 08:25:45,212 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 08:25:45,212 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 08:25:45,212 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 -> 8e0b8e6efb6fc18f3ca2ba094d3acbfc6a07fbc0100e70485e3a3a84ea56105b [2025-02-08 08:25:45,451 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 08:25:45,462 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 08:25:45,464 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 08:25:45,465 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 08:25:45,466 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 08:25:45,466 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe020_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2025-02-08 08:25:46,574 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/df29ff196/b6e0ad0059a84ae2af8dda5d18079a55/FLAG2a346e7fc [2025-02-08 08:25:46,815 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 08:25:46,816 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe020_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2025-02-08 08:25:46,825 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/df29ff196/b6e0ad0059a84ae2af8dda5d18079a55/FLAG2a346e7fc [2025-02-08 08:25:47,146 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/df29ff196/b6e0ad0059a84ae2af8dda5d18079a55 [2025-02-08 08:25:47,148 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 08:25:47,149 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 08:25:47,153 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 08:25:47,153 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 08:25:47,156 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 08:25:47,156 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 08:25:47" (1/1) ... [2025-02-08 08:25:47,157 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49f0f314 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:25:47, skipping insertion in model container [2025-02-08 08:25:47,157 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 08:25:47" (1/1) ... [2025-02-08 08:25:47,185 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 08:25:47,443 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 08:25:47,453 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 08:25:47,492 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 08:25:47,521 INFO L204 MainTranslator]: Completed translation [2025-02-08 08:25:47,521 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:25:47 WrapperNode [2025-02-08 08:25:47,522 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 08:25:47,522 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 08:25:47,522 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 08:25:47,523 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 08:25:47,527 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:25:47" (1/1) ... [2025-02-08 08:25:47,536 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:25:47" (1/1) ... [2025-02-08 08:25:47,549 INFO L138 Inliner]: procedures = 175, calls = 42, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 59 [2025-02-08 08:25:47,550 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 08:25:47,550 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 08:25:47,550 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 08:25:47,550 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 08:25:47,556 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:25:47" (1/1) ... [2025-02-08 08:25:47,556 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:25:47" (1/1) ... [2025-02-08 08:25:47,557 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:25:47" (1/1) ... [2025-02-08 08:25:47,570 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2025-02-08 08:25:47,572 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:25:47" (1/1) ... [2025-02-08 08:25:47,572 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:25:47" (1/1) ... [2025-02-08 08:25:47,577 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:25:47" (1/1) ... [2025-02-08 08:25:47,577 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:25:47" (1/1) ... [2025-02-08 08:25:47,578 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:25:47" (1/1) ... [2025-02-08 08:25:47,578 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:25:47" (1/1) ... [2025-02-08 08:25:47,581 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 08:25:47,581 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 08:25:47,581 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 08:25:47,581 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 08:25:47,582 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:25:47" (1/1) ... [2025-02-08 08:25:47,586 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 08:25:47,594 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:25:47,604 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-08 08:25:47,607 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-08 08:25:47,625 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-02-08 08:25:47,625 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 08:25:47,625 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2025-02-08 08:25:47,625 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2025-02-08 08:25:47,625 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2025-02-08 08:25:47,625 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2025-02-08 08:25:47,625 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2025-02-08 08:25:47,625 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2025-02-08 08:25:47,625 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-08 08:25:47,625 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-02-08 08:25:47,625 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 08:25:47,625 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 08:25:47,626 WARN L227 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-02-08 08:25:47,711 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 08:25:47,712 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 08:25:47,843 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-08 08:25:47,843 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 08:25:47,936 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 08:25:47,937 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 08:25:47,937 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 08:25:47 BoogieIcfgContainer [2025-02-08 08:25:47,937 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 08:25:47,940 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 08:25:47,941 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 08:25:47,944 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 08:25:47,945 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 08:25:47" (1/3) ... [2025-02-08 08:25:47,945 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d82a6bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 08:25:47, skipping insertion in model container [2025-02-08 08:25:47,946 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:25:47" (2/3) ... [2025-02-08 08:25:47,946 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d82a6bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 08:25:47, skipping insertion in model container [2025-02-08 08:25:47,946 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 08:25:47" (3/3) ... [2025-02-08 08:25:47,947 INFO L128 eAbstractionObserver]: Analyzing ICFG safe020_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2025-02-08 08:25:47,958 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 08:25:47,961 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG safe020_pso.oepc_pso.opt_tso.oepc_tso.opt.i that has 4 procedures, 42 locations, 1 initial locations, 0 loop locations, and 2 error locations. [2025-02-08 08:25:47,961 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-08 08:25:48,002 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-02-08 08:25:48,028 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 51 places, 43 transitions, 98 flow [2025-02-08 08:25:48,051 INFO L124 PetriNetUnfolderBase]: 2/40 cut-off events. [2025-02-08 08:25:48,056 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 08:25:48,058 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50 conditions, 40 events. 2/40 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 74 event pairs, 0 based on Foata normal form. 0/36 useless extension candidates. Maximal degree in co-relation 42. Up to 2 conditions per place. [2025-02-08 08:25:48,058 INFO L82 GeneralOperation]: Start removeDead. Operand has 51 places, 43 transitions, 98 flow [2025-02-08 08:25:48,060 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 47 places, 39 transitions, 87 flow [2025-02-08 08:25:48,068 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 08:25:48,075 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;@1ff94fdf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 08:25:48,076 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2025-02-08 08:25:48,084 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-08 08:25:48,084 INFO L124 PetriNetUnfolderBase]: 2/37 cut-off events. [2025-02-08 08:25:48,084 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 08:25:48,085 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:25:48,085 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:25:48,085 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)] === [2025-02-08 08:25:48,089 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:25:48,089 INFO L85 PathProgramCache]: Analyzing trace with hash 790636351, now seen corresponding path program 1 times [2025-02-08 08:25:48,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:25:48,095 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659585849] [2025-02-08 08:25:48,095 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:25:48,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:25:48,155 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-02-08 08:25:48,169 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-02-08 08:25:48,169 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:25:48,169 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:25:48,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:25:48,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:25:48,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659585849] [2025-02-08 08:25:48,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1659585849] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:25:48,271 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:25:48,271 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-08 08:25:48,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2098366534] [2025-02-08 08:25:48,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:25:48,277 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 08:25:48,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:25:48,296 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 08:25:48,296 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 08:25:48,298 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2025-02-08 08:25:48,300 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 39 transitions, 87 flow. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:25:48,301 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:25:48,301 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2025-02-08 08:25:48,302 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:25:48,880 INFO L124 PetriNetUnfolderBase]: 4626/7240 cut-off events. [2025-02-08 08:25:48,881 INFO L125 PetriNetUnfolderBase]: For 36/36 co-relation queries the response was YES. [2025-02-08 08:25:48,892 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13932 conditions, 7240 events. 4626/7240 cut-off events. For 36/36 co-relation queries the response was YES. Maximal size of possible extension queue 280. Compared 42708 event pairs, 4626 based on Foata normal form. 630/7865 useless extension candidates. Maximal degree in co-relation 13921. Up to 6601 conditions per place. [2025-02-08 08:25:48,915 INFO L140 encePairwiseOnDemand]: 39/43 looper letters, 27 selfloop transitions, 1 changer transitions 1/35 dead transitions. [2025-02-08 08:25:48,915 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 35 transitions, 137 flow [2025-02-08 08:25:48,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 08:25:48,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 08:25:48,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 59 transitions. [2025-02-08 08:25:48,924 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4573643410852713 [2025-02-08 08:25:48,925 INFO L175 Difference]: Start difference. First operand has 47 places, 39 transitions, 87 flow. Second operand 3 states and 59 transitions. [2025-02-08 08:25:48,926 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 35 transitions, 137 flow [2025-02-08 08:25:48,930 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 35 transitions, 134 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-02-08 08:25:48,931 INFO L231 Difference]: Finished difference. Result has 44 places, 34 transitions, 76 flow [2025-02-08 08:25:48,933 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=76, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=76, PETRI_PLACES=44, PETRI_TRANSITIONS=34} [2025-02-08 08:25:48,935 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, -3 predicate places. [2025-02-08 08:25:48,936 INFO L471 AbstractCegarLoop]: Abstraction has has 44 places, 34 transitions, 76 flow [2025-02-08 08:25:48,936 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) [2025-02-08 08:25:48,936 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:25:48,936 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:25:48,936 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-08 08:25:48,936 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)] === [2025-02-08 08:25:48,937 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:25:48,938 INFO L85 PathProgramCache]: Analyzing trace with hash 790636934, now seen corresponding path program 1 times [2025-02-08 08:25:48,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:25:48,938 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060541778] [2025-02-08 08:25:48,938 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:25:48,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:25:48,952 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-02-08 08:25:48,973 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-02-08 08:25:48,974 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:25:48,974 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:25:49,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:25:49,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:25:49,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060541778] [2025-02-08 08:25:49,167 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1060541778] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:25:49,167 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:25:49,167 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 08:25:49,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956614867] [2025-02-08 08:25:49,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:25:49,168 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 08:25:49,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:25:49,168 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 08:25:49,169 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-08 08:25:49,172 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2025-02-08 08:25:49,172 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 34 transitions, 76 flow. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:25:49,172 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:25:49,172 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2025-02-08 08:25:49,172 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:25:50,227 INFO L124 PetriNetUnfolderBase]: 9126/13525 cut-off events. [2025-02-08 08:25:50,229 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 08:25:50,243 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26766 conditions, 13525 events. 9126/13525 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 539. Compared 82642 event pairs, 2230 based on Foata normal form. 0/13198 useless extension candidates. Maximal degree in co-relation 26760. Up to 5242 conditions per place. [2025-02-08 08:25:50,282 INFO L140 encePairwiseOnDemand]: 34/43 looper letters, 47 selfloop transitions, 5 changer transitions 93/150 dead transitions. [2025-02-08 08:25:50,282 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 150 transitions, 602 flow [2025-02-08 08:25:50,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-02-08 08:25:50,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-02-08 08:25:50,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 228 transitions. [2025-02-08 08:25:50,284 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5891472868217055 [2025-02-08 08:25:50,285 INFO L175 Difference]: Start difference. First operand has 44 places, 34 transitions, 76 flow. Second operand 9 states and 228 transitions. [2025-02-08 08:25:50,285 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 150 transitions, 602 flow [2025-02-08 08:25:50,285 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 150 transitions, 601 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-08 08:25:50,291 INFO L231 Difference]: Finished difference. Result has 56 places, 36 transitions, 126 flow [2025-02-08 08:25:50,291 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=75, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=126, PETRI_PLACES=56, PETRI_TRANSITIONS=36} [2025-02-08 08:25:50,292 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 9 predicate places. [2025-02-08 08:25:50,292 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 36 transitions, 126 flow [2025-02-08 08:25:50,292 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) [2025-02-08 08:25:50,292 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:25:50,293 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:25:50,293 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-08 08:25:50,293 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)] === [2025-02-08 08:25:50,294 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:25:50,294 INFO L85 PathProgramCache]: Analyzing trace with hash -51240545, now seen corresponding path program 1 times [2025-02-08 08:25:50,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:25:50,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440460409] [2025-02-08 08:25:50,295 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:25:50,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:25:50,307 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-02-08 08:25:50,311 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-02-08 08:25:50,312 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:25:50,312 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:25:50,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:25:50,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:25:50,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440460409] [2025-02-08 08:25:50,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1440460409] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:25:50,459 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:25:50,459 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 08:25:50,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553849932] [2025-02-08 08:25:50,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:25:50,459 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 08:25:50,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:25:50,459 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 08:25:50,459 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-02-08 08:25:50,461 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2025-02-08 08:25:50,461 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 36 transitions, 126 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) [2025-02-08 08:25:50,461 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:25:50,461 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2025-02-08 08:25:50,462 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:25:51,170 INFO L124 PetriNetUnfolderBase]: 6878/10337 cut-off events. [2025-02-08 08:25:51,171 INFO L125 PetriNetUnfolderBase]: For 6058/6070 co-relation queries the response was YES. [2025-02-08 08:25:51,183 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25339 conditions, 10337 events. 6878/10337 cut-off events. For 6058/6070 co-relation queries the response was YES. Maximal size of possible extension queue 399. Compared 60578 event pairs, 744 based on Foata normal form. 260/10592 useless extension candidates. Maximal degree in co-relation 25326. Up to 4333 conditions per place. [2025-02-08 08:25:51,208 INFO L140 encePairwiseOnDemand]: 35/43 looper letters, 56 selfloop transitions, 6 changer transitions 74/141 dead transitions. [2025-02-08 08:25:51,208 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 141 transitions, 697 flow [2025-02-08 08:25:51,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-08 08:25:51,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-02-08 08:25:51,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 228 transitions. [2025-02-08 08:25:51,210 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5302325581395348 [2025-02-08 08:25:51,210 INFO L175 Difference]: Start difference. First operand has 56 places, 36 transitions, 126 flow. Second operand 10 states and 228 transitions. [2025-02-08 08:25:51,210 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 141 transitions, 697 flow [2025-02-08 08:25:51,313 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 141 transitions, 659 flow, removed 14 selfloop flow, removed 4 redundant places. [2025-02-08 08:25:51,315 INFO L231 Difference]: Finished difference. Result has 62 places, 37 transitions, 151 flow [2025-02-08 08:25:51,315 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=113, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=151, PETRI_PLACES=62, PETRI_TRANSITIONS=37} [2025-02-08 08:25:51,316 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 15 predicate places. [2025-02-08 08:25:51,316 INFO L471 AbstractCegarLoop]: Abstraction has has 62 places, 37 transitions, 151 flow [2025-02-08 08:25:51,316 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) [2025-02-08 08:25:51,316 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:25:51,316 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:25:51,317 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-08 08:25:51,317 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)] === [2025-02-08 08:25:51,317 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:25:51,317 INFO L85 PathProgramCache]: Analyzing trace with hash -468481031, now seen corresponding path program 1 times [2025-02-08 08:25:51,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:25:51,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208883631] [2025-02-08 08:25:51,318 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:25:51,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:25:51,325 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-02-08 08:25:51,329 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-02-08 08:25:51,329 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:25:51,329 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:25:51,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:25:51,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:25:51,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [208883631] [2025-02-08 08:25:51,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [208883631] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:25:51,432 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:25:51,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 08:25:51,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146979014] [2025-02-08 08:25:51,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:25:51,433 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 08:25:51,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:25:51,433 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 08:25:51,435 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-02-08 08:25:51,436 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2025-02-08 08:25:51,437 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 37 transitions, 151 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) [2025-02-08 08:25:51,437 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:25:51,437 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2025-02-08 08:25:51,437 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:25:52,156 INFO L124 PetriNetUnfolderBase]: 6819/10258 cut-off events. [2025-02-08 08:25:52,156 INFO L125 PetriNetUnfolderBase]: For 13934/13934 co-relation queries the response was YES. [2025-02-08 08:25:52,174 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27520 conditions, 10258 events. 6819/10258 cut-off events. For 13934/13934 co-relation queries the response was YES. Maximal size of possible extension queue 389. Compared 61065 event pairs, 564 based on Foata normal form. 295/10551 useless extension candidates. Maximal degree in co-relation 27501. Up to 4748 conditions per place. [2025-02-08 08:25:52,198 INFO L140 encePairwiseOnDemand]: 36/43 looper letters, 55 selfloop transitions, 7 changer transitions 68/135 dead transitions. [2025-02-08 08:25:52,198 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 135 transitions, 724 flow [2025-02-08 08:25:52,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-08 08:25:52,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-02-08 08:25:52,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 222 transitions. [2025-02-08 08:25:52,201 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5162790697674419 [2025-02-08 08:25:52,201 INFO L175 Difference]: Start difference. First operand has 62 places, 37 transitions, 151 flow. Second operand 10 states and 222 transitions. [2025-02-08 08:25:52,201 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 135 transitions, 724 flow [2025-02-08 08:25:52,254 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 135 transitions, 658 flow, removed 24 selfloop flow, removed 8 redundant places. [2025-02-08 08:25:52,255 INFO L231 Difference]: Finished difference. Result has 64 places, 38 transitions, 166 flow [2025-02-08 08:25:52,255 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=128, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=166, PETRI_PLACES=64, PETRI_TRANSITIONS=38} [2025-02-08 08:25:52,256 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 17 predicate places. [2025-02-08 08:25:52,256 INFO L471 AbstractCegarLoop]: Abstraction has has 64 places, 38 transitions, 166 flow [2025-02-08 08:25:52,256 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) [2025-02-08 08:25:52,256 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:25:52,256 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:25:52,257 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-08 08:25:52,257 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)] === [2025-02-08 08:25:52,257 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:25:52,257 INFO L85 PathProgramCache]: Analyzing trace with hash -124010434, now seen corresponding path program 1 times [2025-02-08 08:25:52,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:25:52,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116793997] [2025-02-08 08:25:52,258 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:25:52,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:25:52,264 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-02-08 08:25:52,268 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-02-08 08:25:52,268 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:25:52,268 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:25:52,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:25:52,400 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:25:52,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [116793997] [2025-02-08 08:25:52,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [116793997] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:25:52,400 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:25:52,400 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 08:25:52,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662121400] [2025-02-08 08:25:52,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:25:52,400 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 08:25:52,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:25:52,402 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 08:25:52,402 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-08 08:25:52,404 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2025-02-08 08:25:52,404 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 38 transitions, 166 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) [2025-02-08 08:25:52,404 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:25:52,404 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2025-02-08 08:25:52,404 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:25:53,193 INFO L124 PetriNetUnfolderBase]: 7073/10559 cut-off events. [2025-02-08 08:25:53,194 INFO L125 PetriNetUnfolderBase]: For 16393/16393 co-relation queries the response was YES. [2025-02-08 08:25:53,217 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28995 conditions, 10559 events. 7073/10559 cut-off events. For 16393/16393 co-relation queries the response was YES. Maximal size of possible extension queue 385. Compared 61885 event pairs, 482 based on Foata normal form. 250/10807 useless extension candidates. Maximal degree in co-relation 28975. Up to 4096 conditions per place. [2025-02-08 08:25:53,245 INFO L140 encePairwiseOnDemand]: 34/43 looper letters, 82 selfloop transitions, 18 changer transitions 90/195 dead transitions. [2025-02-08 08:25:53,245 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 195 transitions, 1155 flow [2025-02-08 08:25:53,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-02-08 08:25:53,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2025-02-08 08:25:53,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 298 transitions. [2025-02-08 08:25:53,247 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5330948121645797 [2025-02-08 08:25:53,247 INFO L175 Difference]: Start difference. First operand has 64 places, 38 transitions, 166 flow. Second operand 13 states and 298 transitions. [2025-02-08 08:25:53,247 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 195 transitions, 1155 flow [2025-02-08 08:25:53,305 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 195 transitions, 1027 flow, removed 41 selfloop flow, removed 8 redundant places. [2025-02-08 08:25:53,307 INFO L231 Difference]: Finished difference. Result has 74 places, 51 transitions, 350 flow [2025-02-08 08:25:53,307 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=142, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=350, PETRI_PLACES=74, PETRI_TRANSITIONS=51} [2025-02-08 08:25:53,309 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 27 predicate places. [2025-02-08 08:25:53,310 INFO L471 AbstractCegarLoop]: Abstraction has has 74 places, 51 transitions, 350 flow [2025-02-08 08:25:53,310 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) [2025-02-08 08:25:53,310 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:25:53,310 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:25:53,311 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-08 08:25:53,311 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)] === [2025-02-08 08:25:53,311 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:25:53,312 INFO L85 PathProgramCache]: Analyzing trace with hash -1234200828, now seen corresponding path program 2 times [2025-02-08 08:25:53,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:25:53,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [643919948] [2025-02-08 08:25:53,313 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 08:25:53,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:25:53,319 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 19 statements into 1 equivalence classes. [2025-02-08 08:25:53,323 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-02-08 08:25:53,323 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 08:25:53,323 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:25:53,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:25:53,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:25:53,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [643919948] [2025-02-08 08:25:53,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [643919948] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:25:53,445 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:25:53,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-08 08:25:53,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503626351] [2025-02-08 08:25:53,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:25:53,445 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-08 08:25:53,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:25:53,446 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-08 08:25:53,446 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2025-02-08 08:25:53,447 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2025-02-08 08:25:53,447 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 51 transitions, 350 flow. Second operand has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 7 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:25:53,447 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:25:53,447 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2025-02-08 08:25:53,447 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:25:54,226 INFO L124 PetriNetUnfolderBase]: 9394/13893 cut-off events. [2025-02-08 08:25:54,226 INFO L125 PetriNetUnfolderBase]: For 42263/42271 co-relation queries the response was YES. [2025-02-08 08:25:54,249 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43013 conditions, 13893 events. 9394/13893 cut-off events. For 42263/42271 co-relation queries the response was YES. Maximal size of possible extension queue 498. Compared 81874 event pairs, 1113 based on Foata normal form. 270/14159 useless extension candidates. Maximal degree in co-relation 42986. Up to 5012 conditions per place. [2025-02-08 08:25:54,268 INFO L140 encePairwiseOnDemand]: 34/43 looper letters, 65 selfloop transitions, 9 changer transitions 76/155 dead transitions. [2025-02-08 08:25:54,269 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 155 transitions, 1155 flow [2025-02-08 08:25:54,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-02-08 08:25:54,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-02-08 08:25:54,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 211 transitions. [2025-02-08 08:25:54,273 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5452196382428941 [2025-02-08 08:25:54,273 INFO L175 Difference]: Start difference. First operand has 74 places, 51 transitions, 350 flow. Second operand 9 states and 211 transitions. [2025-02-08 08:25:54,273 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 155 transitions, 1155 flow [2025-02-08 08:25:54,376 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 155 transitions, 1041 flow, removed 57 selfloop flow, removed 6 redundant places. [2025-02-08 08:25:54,378 INFO L231 Difference]: Finished difference. Result has 74 places, 40 transitions, 240 flow [2025-02-08 08:25:54,378 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=320, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=240, PETRI_PLACES=74, PETRI_TRANSITIONS=40} [2025-02-08 08:25:54,378 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 27 predicate places. [2025-02-08 08:25:54,379 INFO L471 AbstractCegarLoop]: Abstraction has has 74 places, 40 transitions, 240 flow [2025-02-08 08:25:54,379 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 7 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:25:54,379 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:25:54,379 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:25:54,379 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-02-08 08:25:54,379 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)] === [2025-02-08 08:25:54,379 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:25:54,380 INFO L85 PathProgramCache]: Analyzing trace with hash -371772187, now seen corresponding path program 1 times [2025-02-08 08:25:54,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:25:54,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145353963] [2025-02-08 08:25:54,380 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:25:54,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:25:54,384 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-02-08 08:25:54,390 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-02-08 08:25:54,390 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:25:54,390 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:25:54,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:25:54,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:25:54,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2145353963] [2025-02-08 08:25:54,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2145353963] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:25:54,446 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:25:54,446 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 08:25:54,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061305511] [2025-02-08 08:25:54,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:25:54,446 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 08:25:54,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:25:54,447 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 08:25:54,447 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 08:25:54,447 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2025-02-08 08:25:54,447 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 40 transitions, 240 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) [2025-02-08 08:25:54,447 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:25:54,447 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2025-02-08 08:25:54,447 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:25:54,724 INFO L124 PetriNetUnfolderBase]: 3982/6319 cut-off events. [2025-02-08 08:25:54,725 INFO L125 PetriNetUnfolderBase]: For 13530/13536 co-relation queries the response was YES. [2025-02-08 08:25:54,741 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18196 conditions, 6319 events. 3982/6319 cut-off events. For 13530/13536 co-relation queries the response was YES. Maximal size of possible extension queue 215. Compared 36304 event pairs, 639 based on Foata normal form. 271/6586 useless extension candidates. Maximal degree in co-relation 18175. Up to 3504 conditions per place. [2025-02-08 08:25:54,755 INFO L140 encePairwiseOnDemand]: 37/43 looper letters, 72 selfloop transitions, 5 changer transitions 1/83 dead transitions. [2025-02-08 08:25:54,755 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 83 transitions, 680 flow [2025-02-08 08:25:54,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 08:25:54,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 08:25:54,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 103 transitions. [2025-02-08 08:25:54,756 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5988372093023255 [2025-02-08 08:25:54,756 INFO L175 Difference]: Start difference. First operand has 74 places, 40 transitions, 240 flow. Second operand 4 states and 103 transitions. [2025-02-08 08:25:54,756 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 83 transitions, 680 flow [2025-02-08 08:25:54,770 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 83 transitions, 527 flow, removed 17 selfloop flow, removed 14 redundant places. [2025-02-08 08:25:54,771 INFO L231 Difference]: Finished difference. Result has 61 places, 43 transitions, 203 flow [2025-02-08 08:25:54,771 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=169, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=203, PETRI_PLACES=61, PETRI_TRANSITIONS=43} [2025-02-08 08:25:54,772 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 14 predicate places. [2025-02-08 08:25:54,772 INFO L471 AbstractCegarLoop]: Abstraction has has 61 places, 43 transitions, 203 flow [2025-02-08 08:25:54,772 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) [2025-02-08 08:25:54,772 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:25:54,772 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:25:54,772 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-02-08 08:25:54,772 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)] === [2025-02-08 08:25:54,773 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:25:54,773 INFO L85 PathProgramCache]: Analyzing trace with hash -1129801884, now seen corresponding path program 1 times [2025-02-08 08:25:54,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:25:54,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057312287] [2025-02-08 08:25:54,773 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:25:54,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:25:54,777 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 23 statements into 1 equivalence classes. [2025-02-08 08:25:54,781 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-02-08 08:25:54,781 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:25:54,781 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:25:54,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:25:54,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:25:54,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2057312287] [2025-02-08 08:25:54,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2057312287] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:25:54,837 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:25:54,837 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 08:25:54,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972355898] [2025-02-08 08:25:54,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:25:54,838 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 08:25:54,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:25:54,838 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 08:25:54,838 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-02-08 08:25:54,839 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2025-02-08 08:25:54,839 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 43 transitions, 203 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) [2025-02-08 08:25:54,839 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:25:54,839 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2025-02-08 08:25:54,839 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:25:55,104 INFO L124 PetriNetUnfolderBase]: 2377/3799 cut-off events. [2025-02-08 08:25:55,105 INFO L125 PetriNetUnfolderBase]: For 3431/3437 co-relation queries the response was YES. [2025-02-08 08:25:55,109 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10507 conditions, 3799 events. 2377/3799 cut-off events. For 3431/3437 co-relation queries the response was YES. Maximal size of possible extension queue 128. Compared 19392 event pairs, 325 based on Foata normal form. 210/4005 useless extension candidates. Maximal degree in co-relation 10493. Up to 1305 conditions per place. [2025-02-08 08:25:55,113 INFO L140 encePairwiseOnDemand]: 37/43 looper letters, 81 selfloop transitions, 8 changer transitions 2/96 dead transitions. [2025-02-08 08:25:55,113 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 96 transitions, 626 flow [2025-02-08 08:25:55,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 08:25:55,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-02-08 08:25:55,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 129 transitions. [2025-02-08 08:25:55,114 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6 [2025-02-08 08:25:55,114 INFO L175 Difference]: Start difference. First operand has 61 places, 43 transitions, 203 flow. Second operand 5 states and 129 transitions. [2025-02-08 08:25:55,114 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 96 transitions, 626 flow [2025-02-08 08:25:55,117 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 96 transitions, 606 flow, removed 2 selfloop flow, removed 3 redundant places. [2025-02-08 08:25:55,118 INFO L231 Difference]: Finished difference. Result has 64 places, 46 transitions, 236 flow [2025-02-08 08:25:55,118 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=188, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=236, PETRI_PLACES=64, PETRI_TRANSITIONS=46} [2025-02-08 08:25:55,119 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 17 predicate places. [2025-02-08 08:25:55,119 INFO L471 AbstractCegarLoop]: Abstraction has has 64 places, 46 transitions, 236 flow [2025-02-08 08:25:55,119 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) [2025-02-08 08:25:55,119 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:25:55,119 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] [2025-02-08 08:25:55,119 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-02-08 08:25:55,119 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)] === [2025-02-08 08:25:55,119 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:25:55,120 INFO L85 PathProgramCache]: Analyzing trace with hash -1629146057, now seen corresponding path program 1 times [2025-02-08 08:25:55,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:25:55,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283640325] [2025-02-08 08:25:55,120 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:25:55,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:25:55,124 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes. [2025-02-08 08:25:55,129 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-02-08 08:25:55,129 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:25:55,129 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:25:55,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:25:55,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:25:55,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1283640325] [2025-02-08 08:25:55,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1283640325] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:25:55,226 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:25:55,226 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 08:25:55,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652715573] [2025-02-08 08:25:55,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:25:55,226 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 08:25:55,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:25:55,226 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 08:25:55,227 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2025-02-08 08:25:55,227 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2025-02-08 08:25:55,227 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 46 transitions, 236 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) [2025-02-08 08:25:55,227 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:25:55,227 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2025-02-08 08:25:55,227 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:25:55,375 INFO L124 PetriNetUnfolderBase]: 1420/2236 cut-off events. [2025-02-08 08:25:55,375 INFO L125 PetriNetUnfolderBase]: For 3226/3232 co-relation queries the response was YES. [2025-02-08 08:25:55,379 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6760 conditions, 2236 events. 1420/2236 cut-off events. For 3226/3232 co-relation queries the response was YES. Maximal size of possible extension queue 88. Compared 10133 event pairs, 248 based on Foata normal form. 92/2324 useless extension candidates. Maximal degree in co-relation 6746. Up to 766 conditions per place. [2025-02-08 08:25:55,382 INFO L140 encePairwiseOnDemand]: 37/43 looper letters, 64 selfloop transitions, 11 changer transitions 8/88 dead transitions. [2025-02-08 08:25:55,383 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 88 transitions, 578 flow [2025-02-08 08:25:55,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 08:25:55,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-08 08:25:55,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 132 transitions. [2025-02-08 08:25:55,385 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5116279069767442 [2025-02-08 08:25:55,385 INFO L175 Difference]: Start difference. First operand has 64 places, 46 transitions, 236 flow. Second operand 6 states and 132 transitions. [2025-02-08 08:25:55,385 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 88 transitions, 578 flow [2025-02-08 08:25:55,391 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 88 transitions, 541 flow, removed 7 selfloop flow, removed 5 redundant places. [2025-02-08 08:25:55,392 INFO L231 Difference]: Finished difference. Result has 66 places, 46 transitions, 241 flow [2025-02-08 08:25:55,392 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=205, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=241, PETRI_PLACES=66, PETRI_TRANSITIONS=46} [2025-02-08 08:25:55,393 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 19 predicate places. [2025-02-08 08:25:55,393 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 46 transitions, 241 flow [2025-02-08 08:25:55,393 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) [2025-02-08 08:25:55,393 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:25:55,393 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] [2025-02-08 08:25:55,393 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-02-08 08:25:55,393 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)] === [2025-02-08 08:25:55,393 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:25:55,393 INFO L85 PathProgramCache]: Analyzing trace with hash -328719069, now seen corresponding path program 1 times [2025-02-08 08:25:55,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:25:55,393 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897675832] [2025-02-08 08:25:55,394 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:25:55,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:25:55,398 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 30 statements into 1 equivalence classes. [2025-02-08 08:25:55,401 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 30 of 30 statements. [2025-02-08 08:25:55,401 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:25:55,401 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:25:55,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:25:55,494 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:25:55,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897675832] [2025-02-08 08:25:55,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [897675832] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:25:55,494 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:25:55,494 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-08 08:25:55,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389381353] [2025-02-08 08:25:55,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:25:55,494 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 08:25:55,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:25:55,495 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 08:25:55,495 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-02-08 08:25:55,497 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2025-02-08 08:25:55,497 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 46 transitions, 241 flow. Second operand has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 6 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:25:55,497 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:25:55,497 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2025-02-08 08:25:55,497 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:25:55,677 INFO L124 PetriNetUnfolderBase]: 1544/2431 cut-off events. [2025-02-08 08:25:55,677 INFO L125 PetriNetUnfolderBase]: For 3294/3294 co-relation queries the response was YES. [2025-02-08 08:25:55,681 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7295 conditions, 2431 events. 1544/2431 cut-off events. For 3294/3294 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 11014 event pairs, 336 based on Foata normal form. 8/2437 useless extension candidates. Maximal degree in co-relation 7281. Up to 1201 conditions per place. [2025-02-08 08:25:55,683 INFO L140 encePairwiseOnDemand]: 36/43 looper letters, 43 selfloop transitions, 4 changer transitions 30/82 dead transitions. [2025-02-08 08:25:55,684 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 82 transitions, 551 flow [2025-02-08 08:25:55,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 08:25:55,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-08 08:25:55,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 118 transitions. [2025-02-08 08:25:55,685 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4573643410852713 [2025-02-08 08:25:55,685 INFO L175 Difference]: Start difference. First operand has 66 places, 46 transitions, 241 flow. Second operand 6 states and 118 transitions. [2025-02-08 08:25:55,685 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 82 transitions, 551 flow [2025-02-08 08:25:55,692 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 82 transitions, 430 flow, removed 24 selfloop flow, removed 10 redundant places. [2025-02-08 08:25:55,693 INFO L231 Difference]: Finished difference. Result has 64 places, 39 transitions, 147 flow [2025-02-08 08:25:55,693 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=177, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=147, PETRI_PLACES=64, PETRI_TRANSITIONS=39} [2025-02-08 08:25:55,695 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 17 predicate places. [2025-02-08 08:25:55,695 INFO L471 AbstractCegarLoop]: Abstraction has has 64 places, 39 transitions, 147 flow [2025-02-08 08:25:55,695 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 6 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:25:55,696 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:25:55,696 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] [2025-02-08 08:25:55,696 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-02-08 08:25:55,696 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)] === [2025-02-08 08:25:55,696 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:25:55,696 INFO L85 PathProgramCache]: Analyzing trace with hash 1719064335, now seen corresponding path program 2 times [2025-02-08 08:25:55,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:25:55,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060252034] [2025-02-08 08:25:55,697 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 08:25:55,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:25:55,702 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 30 statements into 1 equivalence classes. [2025-02-08 08:25:55,705 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 30 of 30 statements. [2025-02-08 08:25:55,705 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 08:25:55,706 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:25:55,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:25:55,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:25:55,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060252034] [2025-02-08 08:25:55,784 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2060252034] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:25:55,784 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:25:55,784 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-08 08:25:55,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11089529] [2025-02-08 08:25:55,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:25:55,785 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 08:25:55,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:25:55,785 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 08:25:55,786 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-08 08:25:55,789 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2025-02-08 08:25:55,789 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 39 transitions, 147 flow. Second operand has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 6 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:25:55,789 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:25:55,789 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2025-02-08 08:25:55,789 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:25:55,894 INFO L124 PetriNetUnfolderBase]: 506/804 cut-off events. [2025-02-08 08:25:55,895 INFO L125 PetriNetUnfolderBase]: For 332/332 co-relation queries the response was YES. [2025-02-08 08:25:55,896 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2057 conditions, 804 events. 506/804 cut-off events. For 332/332 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 2692 event pairs, 126 based on Foata normal form. 8/811 useless extension candidates. Maximal degree in co-relation 2046. Up to 444 conditions per place. [2025-02-08 08:25:55,896 INFO L140 encePairwiseOnDemand]: 38/43 looper letters, 0 selfloop transitions, 0 changer transitions 54/54 dead transitions. [2025-02-08 08:25:55,896 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 54 transitions, 287 flow [2025-02-08 08:25:55,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 08:25:55,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-08 08:25:55,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 98 transitions. [2025-02-08 08:25:55,897 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3798449612403101 [2025-02-08 08:25:55,898 INFO L175 Difference]: Start difference. First operand has 64 places, 39 transitions, 147 flow. Second operand 6 states and 98 transitions. [2025-02-08 08:25:55,898 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 54 transitions, 287 flow [2025-02-08 08:25:55,898 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 54 transitions, 251 flow, removed 4 selfloop flow, removed 11 redundant places. [2025-02-08 08:25:55,899 INFO L231 Difference]: Finished difference. Result has 52 places, 0 transitions, 0 flow [2025-02-08 08:25:55,899 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=103, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=52, PETRI_TRANSITIONS=0} [2025-02-08 08:25:55,899 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 5 predicate places. [2025-02-08 08:25:55,899 INFO L471 AbstractCegarLoop]: Abstraction has has 52 places, 0 transitions, 0 flow [2025-02-08 08:25:55,900 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 6 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:25:55,902 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (4 of 5 remaining) [2025-02-08 08:25:55,902 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (3 of 5 remaining) [2025-02-08 08:25:55,902 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2025-02-08 08:25:55,902 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2025-02-08 08:25:55,903 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2025-02-08 08:25:55,903 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-02-08 08:25:55,903 INFO L422 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:25:55,905 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-02-08 08:25:55,906 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-08 08:25:55,909 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.02 08:25:55 BasicIcfg [2025-02-08 08:25:55,909 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-08 08:25:55,910 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-08 08:25:55,910 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-08 08:25:55,910 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-08 08:25:55,911 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 08:25:47" (3/4) ... [2025-02-08 08:25:55,912 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-02-08 08:25:55,914 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure P0 [2025-02-08 08:25:55,915 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure P1 [2025-02-08 08:25:55,915 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure P2 [2025-02-08 08:25:55,917 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 29 nodes and edges [2025-02-08 08:25:55,917 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2025-02-08 08:25:55,918 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2025-02-08 08:25:55,918 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-02-08 08:25:55,965 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-02-08 08:25:55,966 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-02-08 08:25:55,966 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-08 08:25:55,966 INFO L158 Benchmark]: Toolchain (without parser) took 8817.29ms. Allocated memory was 167.8MB in the beginning and 721.4MB in the end (delta: 553.6MB). Free memory was 132.0MB in the beginning and 176.2MB in the end (delta: -44.1MB). Peak memory consumption was 510.1MB. Max. memory is 16.1GB. [2025-02-08 08:25:55,966 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 201.3MB. Free memory is still 126.1MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 08:25:55,967 INFO L158 Benchmark]: CACSL2BoogieTranslator took 369.41ms. Allocated memory is still 167.8MB. Free memory was 131.6MB in the beginning and 111.8MB in the end (delta: 19.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-08 08:25:55,967 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.35ms. Allocated memory is still 167.8MB. Free memory was 111.8MB in the beginning and 109.9MB in the end (delta: 1.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-08 08:25:55,967 INFO L158 Benchmark]: Boogie Preprocessor took 30.56ms. Allocated memory is still 167.8MB. Free memory was 109.9MB in the beginning and 108.7MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 08:25:55,967 INFO L158 Benchmark]: IcfgBuilder took 356.24ms. Allocated memory is still 167.8MB. Free memory was 108.7MB in the beginning and 88.3MB in the end (delta: 20.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-08 08:25:55,967 INFO L158 Benchmark]: TraceAbstraction took 7969.09ms. Allocated memory was 167.8MB in the beginning and 721.4MB in the end (delta: 553.6MB). Free memory was 87.8MB in the beginning and 184.5MB in the end (delta: -96.6MB). Peak memory consumption was 459.7MB. Max. memory is 16.1GB. [2025-02-08 08:25:55,967 INFO L158 Benchmark]: Witness Printer took 56.02ms. Allocated memory is still 721.4MB. Free memory was 184.5MB in the beginning and 176.2MB in the end (delta: 8.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-08 08:25:55,968 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 201.3MB. Free memory is still 126.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 369.41ms. Allocated memory is still 167.8MB. Free memory was 131.6MB in the beginning and 111.8MB in the end (delta: 19.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 27.35ms. Allocated memory is still 167.8MB. Free memory was 111.8MB in the beginning and 109.9MB in the end (delta: 1.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 30.56ms. Allocated memory is still 167.8MB. Free memory was 109.9MB in the beginning and 108.7MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 356.24ms. Allocated memory is still 167.8MB. Free memory was 108.7MB in the beginning and 88.3MB in the end (delta: 20.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 7969.09ms. Allocated memory was 167.8MB in the beginning and 721.4MB in the end (delta: 553.6MB). Free memory was 87.8MB in the beginning and 184.5MB in the end (delta: -96.6MB). Peak memory consumption was 459.7MB. Max. memory is 16.1GB. * Witness Printer took 56.02ms. Allocated memory is still 721.4MB. Free memory was 184.5MB in the beginning and 176.2MB 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: 773]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 17]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 66 locations, 5 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 7.9s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 6.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 851 SdHoareTripleChecker+Valid, 1.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 844 mSDsluCounter, 15 SdHoareTripleChecker+Invalid, 1.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 10 mSDsCounter, 29 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1905 IncrementalHoareTripleChecker+Invalid, 1934 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 29 mSolverCounterUnsat, 5 mSDtfsCounter, 1905 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 88 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=350occurred in iteration=5, InterpolantAutomatonStates: 81, 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, 1.2s InterpolantComputationTime, 232 NumberOfCodeBlocks, 232 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 221 ConstructedInterpolants, 0 QuantifiedInterpolants, 855 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! [2025-02-08 08:25:55,983 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE